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. 

    • 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

    • How to close an estimate ?

      Hello, I have created estimates, and converted them to invoices to get 50% payment. Now I have 2 cases where the estimate stills shows status partially invoiced, however: 1. for one of them, project stopped half way, so the remaining part will never be

    • My Zoho mail stopped receiving or sending emails about 3 hours ago

      Its a pop 3 account. The emails get into the actual mailbox on the server and I can send emails directly from the server, but they are no longer in Zoho, in neither of my Zoho accounts. All green ticks under Mail Accounts under Settings

    • Zoho Cliq not working on airplanes

      Hi, My team and I have been having this constant issue of cliq not working when connected to an airplane's wifi. Is there a reason for this? We have tried on different Airlines and it doesn't work on any of them. We need assistance here since we are constantly

    • Request to Recover Deleted Task List – Project ID: RIV-MOD-10722

      Hi Zoho Team, I hope this message finds you well. My Zoho task list associated with Project ID: RIV-MOD-10722 appears to have been deleted. When I clicked on the task link from the email notification, I received the following message: "Task has been deleted

    • Email Insights included in Bigin emals are marked as SPAM everywhere

      Today I noticed that email recipients who use Office 365 never receive emails sent from Bigin. Further examination showed that all Email Insights links in email headers are marked as spam/phishing by Office 365. Example screen included. The problem is

    • How do I import Connected Records for a Deal?

      Can you point me to an example of the CSV file that would add related records to an existing CRM Deal? I imported a Deal, then tried importing a connected record using a unique ID that references the Deal ID, but it doesn't attach it to the Deal rec

    • File Upload Field in Zoho Forms Not Updating Existing File in Zoho CRM

      Hi everyone, I’m trying to understand the behavior of a file upload field mapped from Zoho Forms to Zoho CRM. Scenario There is a File Upload field in a Zoho CRM module. A Zoho Form also has a File Upload field, which is mapped to that CRM field. When

    • Zoho Training

      Greetings! I am trainer. My focus area is Project Management and MS Project. I have used Zoho CRM to a good extent. Though, I was interested in using ZOHO projects, as there were no live projects, I could not take it up for studies. Recently a client

    • Detailed list of scoring rules in Zoho CRM

      Good morning Zoho community, warm greetings The reason for my message today is that I have a problem with my CRM, which I will explain below: Our organization has scoring rules designed to rate our potential customers or leads in the application based

    • How to create a summary document from Projects details

      Hi, Our team is creating many projects inside Zoho Project. When closing a project, they write a summary document containing data from the projects it-self (understand project budget, customers, etc...), and editable (ie the document is either a Writer

    • Host in US Data Centre

      I humble apply to be registered on US Data centre

    • convert the project to templet

      i have some deployment ME product for different customer , i need to create a fixed template for use it rather then keeping creating this template every time

    • Best practices for managing Project Charters, Business Case and RAID logs within Zoho?

      Hello everyone, I’m currently refining our PMO setup within Zoho Projects and I’m curious how others are handling high-level governance documentation. We’ve been using the standardized Project Charter, Business Case and RAID frameworks from projectmanagertemplate.com

    • Work Orders / Bundle Requests

      Zoho Inventory needs a work order / bundle request system. This record would be analogous to a purchase order in the purchasing workflow or a sales order in the sales cycle. It would be non-journaling, but it would reserve the appropriate inventory of

    • Izettle or Sumup Integration for Zoho Books.

      The Stripe & Square clearing works great in Zoho Books. Any further integrations planned in the future for Izettle or Sumup? These card processors are very common for taking payments with a card reader.

    • Trying to access records in a custom module in Zoho Desk and not having luck

      I've built a custom module in Zoho Desk and am using a custom function to query the records in the module and I'm not having any luck. The only way I have found to retreive a record is by getting it by its recordID (the long zoho assigned one). The function

    • ZOHO Books Smart Accounting Software for Travel Agency

      Dear Travel partner, Contact for Travel Agency Accounting Setup & Training Vansh Travel (ZOHO Books Authorised partner) Email: info@vanshtravel.com Mo: +91 98984 95155 Please find PDF   

    • 452 Mailbox delivery restricted by policy error

      We have been testing Zoho desk for about a week now and have been forwarding emails in via an Exchange Online Mail flow rule without issue until yesterday. Suddenly yesterday morning we started getting the vast majority of the emails stuck in Pending

    • Send Email reply on behalf of Agent

      Hi, When using the send email reply via the API I can set the reply on behalf of the customer by using impersonatedUserId in the header of the API call. Is there a way to do this for Agents too? I need to be able to send an email reply on behalf of an

    • Sharing Tickets to a team within a department

      Hi there, We have a need for one department to be able to share tickets to a specific team within a department, I'm wondering if this is possible? All the shared tickets are going into the 'Shared Tickets' view for the whole department but is there a

    • Automatic Department and Employee Sync Between Zoho One and Zoho People

      Dear Zoho Support, I'm writing to propose a valuable feature request that would streamline data management and improve user experience within the Zoho ecosystem: automatic synchronization between departments and employees in Zoho One and Zoho People.

    • Unable to load a specific image

      Hi I am trying to upload an svg file, which reports that there is "a problem with the file", but does not say what sort of problem. I can't find anything which says which files are supported, so it may be it does not support svg. (which would be a real shame) The file itself will open in either Firefox or Chrome without problem. For the moment I am using a png file, which does not zoom well of course. David

    • Why does the Address field show the wrong map location even with a correct Pincode?

      I am noticing an issue with the Address field map in Zoho Creator. When I enter a city name that exists in multiple locations within the same state, the map sometimes points to the wrong area even if I have entered the correct Pincode. Currently, it seems

    • Archive Option in Conversation View

      Hello, I have a suggestion\request to add an "Archive Thread" button in conversation view of Zoho Mail. The best suggestion I have is to put an "Archive Thread" button next to the "Label Entire Thread" button in conversation view. Most users don't just

    • Outlook/Hotmail Blocking Zoho SMTP IPs (S3150)

      We are currently facing a serious deliverability issue with Zoho SMTP while sending transactional OTP emails for our production application. Emails sent to Outlook / Hotmail addresses are being rejected with the following error: 550 - 5.7.1 Unfortunately,

    • Outlook is blocking incoming mail

      Outlook is blocking all emails sent from the Zoho server. ERROR CODE :550 - 5.7.1 Unfortunately, messages from [136.143.169.51] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). It looks

    • Zoho Social API for generating draft posts from a third-party app ?

      Hello everyone, I hope you are all well. I have a question regarding Zoho Social. I am developing an application that generates social media posts, and I would like to be able to incorporate a feature that allows saving these posts as drafts in Zoho Social.

    • Temporarily rate limited due to IP reputation.

      We have suddenly started receiving the following Mail Delivery Status Notification: Diagnostic-Code: 4.7.650 The mail server [136.143.184.12] has been temporarily rate limited due to IP reputation. For e-mail delivery information, see https://aka.ms/postmaster

    • IMPORTANT: It doesn´t search for letters with portuguese characters.

      Some of my articles have for example the word "vídeo". But if I search for "vídeo" it doesn´t find them. If I search for "video" it does find them. Idealy, it should find the articles either way. But if I have to choose, it would be better to find the

    • IMPORTANT: It doens´t show full article name on search - Should add line break

      When we search for articles, it doesn´t show the full name. There should be a line break so the user can see the full article name, otherwise the user can´t know if that´s the article he/she is looking for. This is very important, otherwise the user has

    • Zoho Books - Payment Gateway - Revolut

      Hi Books Team, My feature request if to include the popular platform Revolut as a payment collection option on invoices in Zoho Books. Please upvote if you are also looking for this option.

    • Zoho Books | Product updates | January 2026

      Hello users, We’ve rolled out new features and enhancements in Zoho Books. From e-filing Form 1099 directly with the IRS to corporation tax support, explore the updates designed to enhance your bookkeeping experience. E-File Form 1099 Directly With the

    • Kaizen #233 - Generating AI-powered Follow-up Emails Using CRM Functions and Widgets

      Hey everyone! Welcome back to another interesting post in the Kaizen series! Sales teams regularly capture interaction notes in CRM after speaking with prospects. However, drafting a follow-up email that reflects the conversation context can be repetitive

    • Connect Bank in Zoho Books

      Can I connect UOB or Ariwallex in Zoho Books?

    • Using MPN across multiple SKUs and inventory tracking

      I have several different SKU's that share a common MPN and would like to track inventory by MPN. SKU1 has MPN1 assigned SKU2 has MPN1 assigned Here is an example If I start with 5 of MPN 1 in stock I want each SKU1 and SKU2 to show as 5 in stock, If I

    • Marketing Tip #1: Optimize item titles for SEO

      Your item title is the first thing both Google and shoppers notice. Instead of a generic “Leather Bag,” go for something detailed like “Handcrafted Leather Laptop Bag – Durable & Stylish.” This helps your items rank better in search results and instantly

    • Feature Enhancement Request – Text Formatting Options in Item Description (Zoho Books/Quotes Module)

      Dear Zoho Development Team, Greetings from Radiant360 Integrated Technical Services LLC. We would like to bring to your attention a functional limitation we've encountered within the Item Table / Quote Description section of Zoho Books (and Zoho CRM Quotes).

    • ZOHO Books Query

      Good day, Can someone please advise. I recently migrated from ZOHO Invoice to ZOHO Books. No that I want to use the inventory on Books I cant as all my items have transaction history. The person I spoke to at ZOHO said I need to create a new Company profile

    • Best way to schedule bill payments to vendors

      I've integrated Forte so that I can convert POs to bills and make payments to my vendors all through Books. Is there a way to schedule the bill payments as some of my vendors are net 30, net 60 and even net 90 days. If I can't get this to work, I'll have

    • inventory removal at packing list or shipment.

      currently our system is set to remove inventory at invoice. This is creating an inventory nightmare? Is it possible to change the settings to remove the item from inventory at either the packing slip stage or shipping the item.

    • Next Page