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.

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

• Topic Participants

• Hari Hara Sudhan. S

  

• 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

• Recent Topics

• Configurable Zoho Cliq Notifications for Zoho People Alerts

  Hello Zoho People Product Team, Greetings and hope you are doing well. We would like to request an enhancement to Zoho People notifications, enabling a native delivery via Zoho Cliq with admin-level control, similar to the notification settings available

• PDF Annotation is here - Mark Up PDFs Your Way!

  Reviewing PDFs just got a whole lot easier. You can now annotate PDFs directly in Zoho Notebook. Highlight important sections, add text, insert images, apply watermarks, and mark up documents in detail without leaving your notes. No app switching. No

• Looking back at Zoho Calendar in 2025

  Hello Zoho Calendar Community, As we step into a brand-new year, we’d like to take a moment to thank you for being an active and valued part of the Zoho Calendar community. Your trust, feedback, and continued engagement motivate us to keep evolving and

• Why hybrid project management might be the best fit for you?

  Project management techniques are designed to equip teams with proven methods for easy and efficient project execution. While management teams may have apprehensions about adopting the hybrid method of project management, we’ve compiled the top reasons

• How create a draft via workflow?

  I wish to create a workflow rule for specific emails that creates a draft response - not an automatic email reply, but just a draft with a set response ready to be verified by an agent who can then manually select recipients. Alternatively, the workflow

• Add a way of clearing fields values in Flow actions

  It would be great if there was an option to set a field as Null when creating flows. I had an instance today where I just wanted to clear a long integer field in the CRM based on an action in Projects but I had to write a custom function. It would be

• There was an error while connecting to GSTN

  I am trying to file GSTR1. Everything flows smoothly until I reach the final step of filing the return. After I enter the PAN and OTP for filing it raises the error "There was an error while connecting to GSTN"

• Zoho Books Extension: What Happens If Custom Fields Already Exist?

  When developing Zoho Books extensions, what happens if the target Zoho Books organization already has a custom field with the same API name as one defined in the extension? I’m asking because we originally created an on-Books version of this functionality,

• Internal Server Error (500) When Attempting to View Banking Transactions

  I am experiencing an Internal Server Error (500) when attempting to view transactions across all of my banking accounts. Despite multiple attempts to resolve this, I have received little more than runaround from support, and the issue remains unresolved.

• How do I add a blank line to the Organisation Address Format?

  I'd like to have my VAT number, for example, shown prominently by having a clear gap between it and the address block above, but any blank lines in the address format get ignored in PDF outputs.

• Automatic Invoice Number generation for createRecord

  Hello, while testing some custom Buttons in my Zoho Books application, I noticed that I get an error that previously did not occur. After some further digging I found that the automatic transaction numbering of invoices no longer work in my organization.

• Adding number of days to an estimate.

  I need both QTY of item and "number of days hire" in my estimates at the line item level. Any clues as to how this is done would be greatly appreciated. It needs to calculate. Thanks J

• Books Api: listing expenses created after certain dates

  Is there any parameter I can add to the List Expenses endpoint that will let me look up expenses by when they were created?

• Why can't we change the Account type from an Expense to an Asset?

  Like the question. Why in QuickBooks for example if I mistakenly created an account as an expenses and I already captured information in those accounts, I can just change the account type from expense to asset

• Nueva edición de "Ask The Expert" en Español Zoho Community

  ¡Hola Comunidad! ¿Te gustaría obtener respuestas en directo sobre Zoho CRM, Zoho Desk u otra solución dentro de nuestro paquete de CX (Experiencia del Cliente? Uno de nuestros expertos estará disponible para responder a todas tus preguntas durante nuestra

• Highlight a candidate who is "off limits"

  Hello: Is there a way to highlight a candidate who is "off limits"?  I would like to have the ability to make certain candidate and / or Client records highlighted in RED or something like that.   This would be used for example when we may have placed a candidate somewhere and we want everyone in our company to quickly and easily see that they are off limits.  The same would apply when we want to put a client or former client off limits so no one recruits out of there. How can this be done? Cheers,

• Is it possible to do validation for the Actions added to Reports?

  We have an all-around On Validate function that checks all the possibilities before the Created/Edited form submissions. We want to have a button in the report view, so we can change records without entering. We are able to add this button, and it does

• Why Sharing Rules do Not support relative date comparison???

  I am creating a Sharing Rule and simply want to share where "Last Day of Coverage" (Date field) is Greater than TODAY (Starting Tomorrow). However, sharing rules don't have the option to compare a date field to a relative date (like today), only to Static

• Ability to Edit Ticket Subject when Splitting a Ticket

  Often someone will make an additional or new request within an existing ticket that requires we split the ticket. The annoying part is that the new ticket maintains the subject of the original ticket after the split so when the new ticket email notification

• How to loop through Multiple Upload and Display Actual File Name

  I have been reading the help on the File Upload Control and reviewed the Deluge help on files and I can not figure out how to loop through the uploaded files and do anything but get the automatically created file names. The code below will run but each

• IF Statement in Zoho CRM Formula Field

  Hi, I am attempting to write a formula field that will give me one result if one statement AND another statement are true, then a different value if the first statement AND a different statement are true, else 0. Stated differently: if account = destination

• [Free Webinar] Environments in Zoho Creator - Creator Tech Connect

  Hello Everyone, We’re delighted to kick off the 2026 edition of the Zoho Creator Tech Connect Series and are excited to continue this learning journey with you. The Creator Tech Connect series is a free monthly webinar featuring deep-dive technical sessions

• Zoho Voice API SMS

  I made a post request in Zapier to try to send an SMS. Authentication appears to be configured correctly. I followed the documentation and I'm getting a 400 Error "Internal Server Error". Not helpful at all. Anyways, I could not find any information on

• How do I change (error) display messages

  Hi! I would like to edit display messages like "invalid entries" and "enter a value for Nome" and so on into Italian language messages. How can I do that? Already tried on Validate on form submit. Where I am failing? Thanks in advance.

• Report grouping

  I have added a grouping in a report but it is not working how i had expected. I wanted to group a summary on a field named Size but when i add the grouping the report is still showing me each record and making a summary at the bottom of the report. What

• Record Overseas Transactions Along with CC charges

  Hi All, We receive payments via stripe in multiple currencies and stripe takes around 2.5% fees. The amount is settled in INR into our local bank. What should be the currency of the income account used for Stripe payments? Here is a sample flow that we

• Easier onboarding for new users with stage descriptions

  Greetings, I hope all of you are doing well. We're happy to announce a recent enhancement we've made to Bigin. You can now add descriptions to the stages in your pipeline. Previously, when creating a pipeline, you could only add stages. With this update,

• Pieds de page personnalisé - Document Zoho Writer

  Bonjour à tous, Je rencontre un souci avec l’ajout d’un pied de page personnalisé dans un document Zoho Writer. Je souhaite insérer les informations de mon entreprise (notamment un logo + adresse) dans le pied de page. Le problème, c’est que lorsque j’ajoute

• Zoho Trident Windows - Streams Not Visible

  Namaste We’re having an issue with Streams not being visible in Trident (Windows), which is important for us as we share many emails internally. It appears that the feature to show Streams above the Inbox folder, as seen in the default mailbox view, is

• Subforms and automation

  If a user updates a field how do we create an automation etc. We have a field for returned parts and i want to get an email when that field is ticked. How please as Zoho tells me no automation on subforms. The Reason- Why having waited for ever for FSM

• Permissions on Views

  Having the option of any agent creating custom views is firing back and got a situation where there are a hundred different views across the team and tickets are not being dealt in the most efficient of ways. Tickets seems to be missed by some agents,

• Credit card transactions are backwards after importing statements

  I am new to Zoho Books so I'm importing my firm's bank and credit card statements in. My credit card statements have a single column with negative numbers so that is the option I chose. But when I went to categorize the credit card transactions, I can

• import data from Apollo.ai into zoho crm via zoho flow

  I might be asking this question in the wrong forum. We use Apollo.ai to find potential new leads for our business, there are around 10000 leads that we have initially found. We have an Apollo.ai account but just to do searches, we dont use it as a crm.

• MS Teams for daily call operations

  Hello all, Our most anticipated and crucial update is finally here! Organizations using Microsoft Teams phone system can now integrate it effectively with Zoho CRM for tasks like dialling numbers and logging calls. We are enhancing our MS Teams functionality

• Knowledgebase SEO

  We have a custom-domain mapped help center that is not restricted via login. I have some questions: a) will a robots.txt file still allow us to control indexing? b) do we have the ability to edit the sitemap? c) do category URLs get indexed by search

• Filter contacts based on selected category in Zoho Desk ticket

  Hello community, I’m setting up the Tickets module in Zoho Desk and I need help implementing the following: When a category is selected in a ticket, I want the Contact field to be filtered so that it only displays contacts that are related to that category.

• 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

• VIsual maindmaps in Zoho notebook Ai

  Can I create and export VIsual maindmaps in Zoho notebook Ai

• 1stDibs Integration to Zoho Inventory

  Hello is it possible to integrate my Zoho inventory and 1stDibs?

• Develop and publish a Zoho Recruit extension on the marketplace

  Hi, I'd like to develop a new extension for Zoho Recruit. I've started to use Zoho Developers creating a Zoho CRM extension. But when I try to create a new extension here https://sigma.zoho.com/workspace/testtesttestest/apps/new I d'ont see the option of Zoho Recruit (only CRM, Desk, Projects...). I do see extensions for Zoho Recruit in the marketplace. How would I go about to create one if the option is not available in sigma ? Cheers, Rémi.

• Next Page