Billing Management: #6 Usage Billing in SaaS

Billing Management: #6 Usage Billing in SaaS

Imagine a customer shuffling across multiple subscriptions, a streaming service, a music app, cloud storage, and a design tool. Each one charges a flat monthly fee, regardless of how much or how little they use. Some months, the customer barely opens the subscriptions, yet the bill is the same. This is what we call subscription fatigue, meaning resistance from the customer towards fixed, recurring charges that don't match their actual usage.   

For SaaS, subscription fatigue is more than a buzzword. It's a business risk as a flat rate may appear overcharging for one, but others enjoy paying less for their high usage. This imbalance leads to churn, lost revenue and customer grievances.

The solution lies in usage billing, where the customer pays based on what they consume. By aligning cost with value, businesses can increase fairness and unlock sustainable growth. 
While the principle is simple, it requires a reliable way to track and monetise usage properly.


Zoho Billing Makes Usage Billing Seamless

Zoho Billing provides SaaS businesses with all the tools needed to implement usage-based pricing effectively. Key capabilities that Zoho Billing offers that work effectively for SaaS businesses include:

  • Flexible Pricing Tiers: Businesses can create multiple plans with different prices and list them on their websites for direct signup.

  • Zero value Plan: For charging customers purely based on usage alone, businesses can create $0 value plan and associate usage addons to charge appropriately.

  • Addons: Attach both flat-rated addons and usage-based addons to the subscription.

  • Hybrid Model: Combine a flat subscription fee with usage-based addons to monetise additional consumption fairly.

When a usage addon is attached to a subscription, Zoho Billing ensures that usage is tracked, recorded and billed accurately.


Scenario 1:

Sam runs a small consulting firm and uses a mailing application to communicate with his clients. His plan costs $200 and includes 500 GB of storage. Sam stays within the limit most months; however, with many attachments, proposals and reports during a particular month, his mailbox usage exceeds by another 100 GB. The mailing application provides a usage addon for $0.50/GB for the additional usage instead of offering a rigid higher value plan.


Item

Value

Base Subscription

$200

Included Invoices

500

Actual Usage

600

Extra Usage

100

Unit Price for Extra Usage

$0.50/GB

Additional Charge

$50

Total Invoice Value (Base Price+Added Usage)

$250


The billing team records the extra 100 GB usage in Zoho Billing using the manual usage entry method and nothing more. The system automatically calculates $50 overage fee and appends it to the invoice to make the renewal invoice for the period $250.

Scenario 2:
Imagine Smith Enterprise uses a cloud analytics SaaS product. The contract covers a base subscription plan and two usage add-ons: API calls and storage. The base plan costs $500/month and includes 100,000 API calls and 500 GB storage. For every API call they make, an extra $0.01 per call will be charged. Similarly, for extra storage, $0.10 will be charged per GB. 

During a particular month, the company consumes 250,000 API calls and 750 GB of storage, clearly above the usage limit. A subsequent invoice is created, and the charge based on the usage data is added to the base subscription value.

Addon 1

Addon 2

Item

Value

Item

Value

Included API Calls

100,000

Includes Storage

500 GB

Actual Usage

250,000

Actual Usage

750 GB

Extra Usage

150,000

Extra Usage

250

Unit Price

$0.01/call

Unit Price

$0.10/GB

Additional Charge

150,000x$0.01= $1500

Additional Charge

250x$0.10= $25

 

Item

Charges

Base Subscription

$500

API Call Overage

$1500

Storage Overage

$25

Total Invoice

$2025


The company exports the API call logs and storage usage data into a CSV file that can be imported into Zoho Billing. Zoho Billing digests both records, applies the pricing rule separately for each add-on, and generates a consolidated invoice.

Scenario 3: 
Roy runs a digital marketing agency offering various marketing campaigns across social media platforms. Roy owns a SaaS application that generates posts and charges $1.5 per post design. No fixed base price for this, but their clients are purely charged based on the number of posts made. During festive sessions, Roy's team schedules a maximum of 450 posts for a client.

Item

Value

Base Subscription

$0

Rate per post

$1.5

Actual Usage

450 posts

Total Invoice Value ($1.5x450)

$675

 

Using Zoho Billing, Roy records the usage manually or by importing them into the system. With no base price, the platform automatically calculates the total invoice based on the usage. Roy receives a clear invoice for $675, reflecting the value consumed.

SaaS Usage Billing Simplified

Usage Billing ensures that customers pay only for what they consume, whether extra storage, extra API calls, or purely based on the number of posts made. With Zoho Billing, SaaS businesses can seamlessly manage complex and straightforward usage billing scenarios. Adding usage to Zoho Billing is simplified through different methods. It can be added manually if there are fewer subscriptions, and usage data can be imported if there are more subscriptions and usage add-ons. Usage can also be pushed using APIs into Zoho Billing.

Post your use cases in the comments and find the best way to handle them using Zoho Billing.


NotesNext, we will dive into Usage Billing in Telecom and Internet Service Providers, showing how this model powers those sectors. 

    Access your files securely from anywhere

        All-in-one knowledge management and training platform for your employees and customers.






                              Zoho Developer Community




                                                    • Desk Community Learning Series


                                                    • Digest


                                                    • Functions


                                                    • Meetups


                                                    • Kbase


                                                    • Resources


                                                    • Glossary


                                                    • Desk Marketplace


                                                    • MVP Corner


                                                    • Word of the Day


                                                    • Ask the Experts



                                                              • Sticky Posts

                                                              • Community Learning Series | Digest #5 — September 2020

                                                                Dear customers, We're happy to bring you the September edition of our #CommunityDigest! Keep track of your subscription KPIs right from your smartphone: Last month, we enhanced our Android mobile app to help our customers get daily updates on their business health. We got to know from a lot of customers that this has made their job much more easier because they no longer have to keep a reminder to manually check on the previous day's revenue or activations. If you have not downloaded it yet, here's
                                                              • Community Learning Series | Digest #4 - August 2020

                                                                Dear customers, We hope you're staying safe and healthy. I'm happy to bring you the fourth edition of our #CommunityDigest with some brand-new updates from us. 1. Daily Business Updates (for Android users) The Zoho Subscriptions Android app has got a cool new update: You can now get a push notification to your smartphone that lets you know how many activations and cancellations have taken place, and what's the net revenue for the previous day. The best part is, you can tell the app when exactly you
                                                              • Community Learning Series | Digest #3 - July 2020

                                                                Dear customers, We hope you're staying safe and healthy. We're glad to bring you the July edition of our #CommunityDigest. New community members can view our previous newsletters here. This time, we have two major updates and three interesting topics for you: 1. Zoho Subscriptions Developer Community Since the inception of Zoho Subscriptions, our team believed that the recurring billing platform we provide should be able to offer an extensive API library that empowers businesses to automate most
                                                              • Introducing: Community Learning Series | Digest #1 - May 2020

                                                                Dear customers, We hope you are staying safe and healthy. Helping businesses manage their customer subscriptions more efficiently has always been, and always will be, our goal at Zoho Subscriptions. We strongly believe this is possible if we grow together as a community and share what we know with each other. To nurture this shared learning experience, here is our brand-new Community Learning Series! ​ Welcome to the first edition of our digest! Each edition of our community digest includes guides


                                                              Manage your brands on social media



                                                                    Zoho TeamInbox Resources



                                                                        Zoho CRM Plus Resources

                                                                          Zoho Books Resources


                                                                            Zoho Subscriptions Resources

                                                                              Zoho Projects Resources


                                                                                Zoho Sprints Resources


                                                                                  Qntrl Resources


                                                                                    Zoho Creator Resources



                                                                                        Zoho CRM Resources

                                                                                        • CRM Community Learning Series

                                                                                          CRM Community Learning Series


                                                                                        • Kaizen

                                                                                          Kaizen

                                                                                        • Functions

                                                                                          Functions

                                                                                        • Meetups

                                                                                          Meetups

                                                                                        • Kbase

                                                                                          Kbase

                                                                                        • Resources

                                                                                          Resources

                                                                                        • Digest

                                                                                          Digest

                                                                                        • CRM Marketplace

                                                                                          CRM Marketplace

                                                                                        • MVP Corner

                                                                                          MVP Corner







                                                                                            Design. Discuss. Deliver.

                                                                                            Create visually engaging stories with Zoho Show.

                                                                                            Get Started Now


                                                                                              Zoho Show Resources

                                                                                                Zoho Writer

                                                                                                Get Started. Write Away!

                                                                                                Writer is a powerful online word processor, designed for collaborative work.

                                                                                                  Zoho CRM コンテンツ




                                                                                                    Nederlandse Hulpbronnen


                                                                                                        ご検討中の方




                                                                                                                • Recent Topics

                                                                                                                • Tip #65 - Exploring Technician Console: Short Keys - 'Insider Insights'

                                                                                                                  Hello Zoho Assist Community! Have you ever been in the middle of a remote support session, trying to pass a key combination onto the remote machine, only to find it's reflecting on the technician's computer. The Short Keys feature in Zoho Assist is here
                                                                                                                • Reading from and writing to Zoho Projects Custom Module with Deluge

                                                                                                                  Does anyone know if there is a way to read from and write to the Custom Modules that Zoho now supports. I would love to be able to loop through a set of data and create the entities I need to for this new custom module I'm looking to put together.
                                                                                                                • Disappointment with Zoho Payments

                                                                                                                  Dear Gowdhaman, I am writing to inform you that I am removing Zoho Payments from my website. I cannot continue to disappoint my customers due to the lack of UPI support, as has been the case with my experience so far. Please note that the 0.5% transaction
                                                                                                                • Evolução do modelo de ambientes: Dev, Homologação e Produção com pacotes versionados

                                                                                                                  Hoje o Zoho CRM já oferece Sandbox, o que é um avanço importante para organizações que trabalham com customizações mais complexas. No entanto, na prática, o modelo atual ainda apresenta limitações significativas quando múltiplas equipes ou consultorias
                                                                                                                • Permissões granulares por usuário além do modelo baseado exclusivamente em perfis

                                                                                                                  Atualmente, o modelo de segurança do Zoho CRM é fortemente baseado em perfis. Embora funcional, esse modelo apresenta limitações quando equipes possuem variações individuais de acesso dentro do mesmo grupo operacional. Em cenários reais, é comum que usuários
                                                                                                                • Add or update lookup field values during Blueprint transition

                                                                                                                  Hello everyone, During blueprint transition users can add or modify the value of a lookup field. For instance, if the Tickets module includes a lookup field that connects it to records in the Assets module, agents can link the ticket to the correct asset
                                                                                                                • Can you limit SEO penalties by delaying the appearance of a pop-up?

                                                                                                                  Google is not keen on pop-ups and has got even less keen on them with the new Core Web Vitals updates. But I like using pop-ups. If you delay the pop-up so it only appears 10 seconds after the page loads, do you avoid Google’s penalties? 
                                                                                                                • Adding bank details to the contact through API

                                                                                                                  How to add bank-related information to the contact while creating it using API? The account number needs to be encrypted before sending it through API but not sure how to encrypt and get those values. Please guide me in this.
                                                                                                                • Restrict Payment Methods

                                                                                                                  Allow us to restrict certain payment methods specific for each customer.
                                                                                                                • Clone Banking Transaction

                                                                                                                  Why is there no option to CLONE a Transaction in the Banking module?? I often clone Expenses (for similar expense transactions each month) so I would also like to clone Income transactions. But there is no option in Banking to clone an existing Income
                                                                                                                • PDF limit

                                                                                                                  Hello everyone, We have received an e-mail that we have reached our PDF limit. (see screenshot) However, I cannot find any reference to a PDF limit in our tariff plan (Premium). (see screenshot). What is the maximum number of PDFs that can be generated
                                                                                                                • How can I see content of system generated mails from zBooks?

                                                                                                                  System generated mails for offers or invices appear in the mail tab of the designated customer. How can I view the content? It also doesn't appear in zMail sent folder.
                                                                                                                • Credit Card Pre-Authorization with later Capture/Settlement

                                                                                                                  We really enjoy the convenience of being able to pay off a customer's invoice using our Auth.Net integration with Zoho Books. Unfortunately, we can only take advantage of this feature with a small percentage of our customers as it leaves a gaping hole
                                                                                                                • Accessibility in Zoho CRM: Not just a feature—a way to empower

                                                                                                                  For instructions on setting up these controls, please check this help document: Configuring accessibility controls. Hello everyone, Today (December 3, 2024), on the International Day of Persons with Disabilities, we begin our journey towards a CRM that
                                                                                                                • Automation Series #1: Round Robin vs Direct Assignment in Zoho Desk

                                                                                                                  Direct Assignment vs Round Robin: Choosing the right routing method in Zoho Desk This post is part of the "Desk Automation Series," Chapter 1. Through this series, we will help you choose the right automation type in Zoho Desk by comparing commonly confused
                                                                                                                • Invalid tax authority ID.

                                                                                                                  How do I correct this ?
                                                                                                                • Pay Pal Paylater button

                                                                                                                  I am testing the paypal setup to have my customers pay invoices with paypal and credit cards. But it seems to have two options. Paypal and Pay later. I don't want my customers access to pay later feature. How can I turn that part off.. My other integration
                                                                                                                • Zoho Workshops are coming to the Netherlands - Join us on 14-16 April in Amsterdam!

                                                                                                                  Dear Zoho Community Members, After succesful recent editions in the UK and Scandinavia, we’re pleased to invite you to the upcoming Zoho Benelux Workshop 2026, taking place 14–16 April 2026 in Amsterdam. This three-day, in-person event at the Park Plaza
                                                                                                                • How to install Widget in inventory module

                                                                                                                  Hi, I am trying to install a app into Sales Order Module related list, however there is no button allow me to do that. May I ask how to install widget to inventory module related list?
                                                                                                                • Sub form auto field population based on parent form

                                                                                                                  I have a parent form called "Sites" with a text field called "Site". I have a subform called "Design Comments" (actual form name "Review Comments") with a lookup field name "Sites1" that looks up from the Sites form. I want the Sites1 lookup field to
                                                                                                                • Building Toppings #7 - Using schedules and workflow functions

                                                                                                                  Hello Biginners, In our previous forum post, we explored install and uninstall actions and learned how to trigger custom logic the moment a topping is added or removed from an organization. In this post, we'll look at how to automate actions during regular,
                                                                                                                • Simplify scripting with Zia assistant bot

                                                                                                                  Hello everyone, Building automation using Deluge custom functions gives users flexibility and control. Traditionally, creating these functions required writing scripts, testing the logic, and validating the configuration before using it. With Zia assistant
                                                                                                                • Zoho Sprints iOS app update: Global view, screen capture control, file encryption, tags enhancement

                                                                                                                  Hello everyone! We are excited to introduce new features in the latest version(v2.1) of the Zoho Sprints iOS app update. Let’s take a quick look at what’s new. 1. Global view Global view brings all your project items into one centralised space. You can
                                                                                                                • Resource Management System built using Zoho CRM, Creator, Projects, and People:

                                                                                                                  In a Resource Management System built using Zoho CRM, Creator, Projects, and People: CRM Deal Closed → Creator Allocation Engine → Zoho Projects Task Assignment What is the recommended architecture to handle dynamic reassignment when: an employee goes
                                                                                                                • Request to Remove LinkedIn Verification from My Emai

                                                                                                                  I would like to submit a complaint regarding my Zoho Mail account. I previously used this email address to verify a LinkedIn account, but that LinkedIn account has now been closed. I need to remove or cancel the verification associated with the closed
                                                                                                                • Pin multiple columns and adjust column widths in CRM subforms

                                                                                                                  Hello all, Subforms act as secondary forms or tables in which you can associate multiple line items to a primary record and thereby ensure more structured and comprehensive data organization. We've made some recent enhancements to subforms. Here's what's
                                                                                                                • Removing To or CC Addresses from Desk Ticket

                                                                                                                  I was hoping i could find a way to remove unnecessary email addresses from tickets submitted via email. For example, a customer may email the support address AND others who are in the helpdesk notification group, in either the TO or CC address. This results
                                                                                                                • From Zoho CRM to Paper : Design & Print Data Directly using Canvas Print View

                                                                                                                  Hello Everyone, We are excited to announce a new addition to your Canvas in Zoho CRM - Print View. Canvas print view helps you transform your custom CRM layouts into print-ready documents, so you can bring your digital data to the physical world with
                                                                                                                • Announcing Kiosk 1.1 - Customize screen titles, configure new fields & actions, use values from your Kiosk to update fields, and more.

                                                                                                                  Hello all We are back again with more enhancements to Kiosk. So what's new? Enhancements made to the Components Add titles for your Kiosk screens and adjust its width to suit your viewing preferences. Three new fields can be added to your screen: Percentage,
                                                                                                                • CRM Percent custom fields: When will it show the % symbol and behave like %?

                                                                                                                  1. Actually Percent custom fields fail to show the % symbol. 2. When in formulas Percent fields work like number: 100 x 5% = 5 ideal world 100 x 5% = 500 what happens actually 3. When importing Percent fields the % symbol has to be removed and the data
                                                                                                                • Introducing Color Coding of Picklist Values

                                                                                                                  Dear Everyone, Greetings!! Zoho CRM is uplifting the user experience. Recently, we had some notable aesthetic improvements in CRM like Kanban View UI enhancement, New List view UI enhancement, color coding of tags, and color coding of picklists in meetings.
                                                                                                                • Where can I find the best mail backup tool for Windows?

                                                                                                                  Later this evening I found Mail Backup Tool in google. Actually I was looking for a solution to download/save emails to my local drive. As I had plenty of important data stored in my email account. So i was not in a mood to take this thing lightly. This made me curious to found any software which can help me to backup my data to hard drive. Then I found the above application which was like a gem. A complete email backup solution for Zoho Mail, Gmail, Yahoo Mail, Office 365 and more than 40+ email
                                                                                                                • Mailbox storage showing incorrect usage

                                                                                                                  My mailbox shows 4.99 GB used out of 5 GB. However, actual mailbox usage is only around 394 MB. Trash and Spam are already empty. IMAP/POP is not enabled. WorkDrive is not in use. This appears to be a storage calculation issue. Please help to recalculate
                                                                                                                • Super Admin Logging in as another User

                                                                                                                  How can a Super Admin login as another user. For example, I have a sales rep that is having issues with their Accounts and I want to view their Zoho Account with out having to do a GTM and sharing screens. Moderation Update (8th Aug 2025): We are working
                                                                                                                • Es posible cambiar el lenguaje de los modulos del ASAP?

                                                                                                                  Es posible cambiar el lenguaje de estos textos? Tengo Zoho configurado en español pero aun así me muestra estos textos en ingles:
                                                                                                                • Option to Automatically Publish Job Openings to the Career Website via API or Workflow

                                                                                                                  Currently, when creating Job Openings using the Zoho Recruit API, the records are successfully inserted into the system. However, there is no way to automatically publish these Job Openings to the Career Website. In the Job Opening field data, there are
                                                                                                                • Evaluate applicants faster: Profile Summary and Skill Sets now in Applications

                                                                                                                  Evaluating applicants often requires switching between modules to understand their skills and background. With this update, we’ve extended two capabilities directly to the Applications module: Skill Sets and Profile Summary. You can now review applicants
                                                                                                                • Free webinar: How to use passkeys with Zoho Vault

                                                                                                                  Hi everyone! Passkeys are transforming the way we sign in—making authentication safer, faster, and completely passwordless. No more memorizing complex passwords or worrying about credential theft. With Zoho Vault, you can securely manage both passwords
                                                                                                                • Adding Markdown text using Zoho Desk API into the Knowledge Base

                                                                                                                  Hi Zoho Community members, We currently maintain the documentation of out company in its website. This documentation is written in markdown text format and we would like to add it in Zoho Knowledge Base. Do you know if there is REST API functionality
                                                                                                                • Is it possible to embed Zoho Bookmarks in the Cliq sidebar?

                                                                                                                  Is there any way that each Zoho user can access their bookmarks (that live in https://bookmarks.zoho.eu/ which is technically a part of Zoho Mail) directly within Cliq? As a widget, or an item in the sidebar? My team does not use Mail, it uses Cliq all
                                                                                                                • Next Page