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

• Add Bounced as an Email Action / Notification for Bounced Emails

  This is one of the hard requirements for the clients we're servicing. They want to get an internal email notification whenever the email they sent to their contacts have bounced, so that they can look into it and update the email address. Currently, the

• Files Uploaded to Zoho WorkDrive Not Being Indexed by Search Engines

  Hello, I have noticed that the files I upload to Zoho WorkDrive are not being indexed by search engines, including Google. I’d like to understand why this might be happening and what steps I can take to resolve it. Here are the details of my issue: File

• not able to convert pdf to jpg and other forms and vice versa.

  i want to change my pdf to jpg, word, etc and some times jpg to pdf. i don't know how to do in this.

• What’s New in Zoho Analytics - March 2026

  Hello Users! In this month's update, we bring improvements across integrations, security, reporting, and analytics capabilities to help you work with your data more efficiently and with greater control. Explore what’s new and see how these enhancements

• Zoho People > Performance Management > Appraisal cycle

  Hello All I am using this 2 users to test out how it work on Performance Management User 1 - Reportee User 2 - Reporting Manager : Li Ting Haley User 1 : Self Appraisal Error How do i fix this error?

• SalesIQ Tip for Admins: Guide Operators in Real-time Without Interrupting the Chat

  Consider this. You're a supervisor and you're looking through the active conversations. An associate is mid-chat with a high-value prospect. The prospect asks something unexpected, maybe about a tailor-made subscription plan or a bulk discount that’s

• Early Access: Check Printing in Zoho Books

  Hello Everyone,   Are you constantly writing checks to pay your vendors?   We've got a great news to share with you! You can now pay your vendors by writing and printing a check directly from Zoho Books. The feature is ready and we'll be rolling it out to our customers in phases.  It is available in the  US Edition of Zoho Books and also in the Global edition, where the country is selected as USA and the currency is USD.   Here’s a summary of what’s possible:   1. Write and print a check. 2. Make

• Connecting Zoho Inventory to ShipStation

  we are looking for someone to help connect via API shipStation with Zoho inventory. Any ideas? Thanks. Uri

• Syncing zoho books into zoho crm

  I was wondering how I can use zoho books in crm as I have been using them separately and would like to sync the two. Is this possible and if so, how? Thanks

• Zoho no support response.

  Problem is Zoho support seems to be just a concept. Just completing my trial, am ready to purchae 3 user subscriptions pending answer to a question, submitted two suport request during my trial that weren't responded to. Gave up trying the 888 line. Hard to imagine my production data in hosting environment with no support response.

• Updating transaction number series for fiscal year 2026-2027 in Zoho POS

  A fiscal year or financial year is a 12-month period that businesses follow to manage and track their financial activities such as expenses, revenue, and taxes. This doesn't need to match the calendar year (JAN-DEC) and varies based on region, and tax

• Lack of Looping and Carry-Forward Functionality in Zoho Survey

  Zoho Survey currently does not support looping or carry-forward functionality, meaning it is not possible to dynamically generate follow-up questions based on each option selected in a previous question or to pipe selected responses (such as {Looping

• Forecast in Zoho CRM Just Got Smarter with an upgraded Zia Intelligence

  Hello Everyone, We are here with an interesting enhancement to Forecasts in Zoho CRM — Enhanced Zia Insights for your sales Forecast. Imagine a regional sales manager reviewing their team’s performance using forecasts in Zoho CRM. Instead of switching

• Update TDS and TCS rates for Income Tax Act, 2025 (effective April 1, 2026)

  Hello everyone, The Income-tax Rules, 2026 (G.S.R. 198(E), dated March 20, 2026) have been notified, marking a significant structural shift in India’s direct tax framework. From April 1, 2026, the Income Tax Act, 2025 replaces the Income Tax Act, 1961.

• Service line items

  Hello Latha, Could you please let me know the maximum number of service line items that can be added to a single work order? Thanks, Chethiya.

• Automation Series: Auto-assign Resources as Task Owners

  In Zoho Projects, task ownership can be set automatically during task creation, allowing resources to be assigned based on the task name. Resources are work equipment or tools added to the portal to monitor their usage across projects. They can be assigned

• Subform edits don't appear in parent record timeline?

  Is it possible to have subform edits (like add row/delete row) appear in the Timeline for parent records? A user can edit a record, only edit the subform, and it doesn't appear in the timeline. Is there a workaround or way that we can show when a user

• AI secretary

  In our company, Claude is the secretary and creates inquiries and schedules from Gmail. You no longer have to enter them yourself. The secret is that we created an MCP server that connects to CRM. https://x.com/Mac_nishio/status/1917954562566328694

• 5 small changes to Recruit that make a big difference

  Sometimes, the biggest improvements aren’t new features, they’re small changes that make everyday actions feel smoother. Over the past few weeks, we’ve made a few such updates across Zoho Recruit. They’re subtle, but together, they remove friction from

• Project Management Bulletin: March, 2026

  We are passionate about equipping our users with efficient solutions that help them run their businesses successfully. Our collective efforts over the past 2 years have culminated in the launch of Sprints 3.0— built with reliable features, impactful integrations,

• New security enhancements for portal users: MFA and password management

  Hello everyone, We are excited to announce three major security enhancements that are now available to portal users in Zoho CRM: Organization-wide multi-authentication for portal users - Admins can enforce multi-factor authentication across the entire

• [Free Webinar] Learning Table Series 2026 – Customer agreement & contract management using Zoho Creator

  Hello everyone, We’re excited to announce the next session in Learning Table Series 2026, where we will continue with our purpose-driven approach—focusing on how Zoho Creator’s features help solve real-world business challenges. Each session in this series

• Zoho Payroll's USA and KSA editions are available in Zoho One!

  Greetings! We’re excited to share that Zoho Payroll, currently available only in India and the UAE, is now introducing the KSA (Kingdom of Saudi Arabia) edition and the USA (United States of America) edition, and these editions are now available in Zoho

• Looking for Guidance on Building a Zoho Website

  I'm exploring the possibility of building a custom website with specific features using Zoho as an alternative platform. My goal is to create something similar to https://gtasandresapk.com , with the same kind of functionality and user experience. I'd

• Multilingual website feature

  Would be a great feature to have. I saw that this feature was available for backstage. I think it could be done for zoho sites too.

• [Webinar] Modernize your sales engine with agentic analytics

  Traditional sales decision-making methods aren't cut out for modern businesses. Leveraging AI in sales helps businesses actively respond to the changing dynamics of the market. Agentic AI is letting sales teams across industries make better decisions

• Built-in Date Functions in Zoho Analytics Query Tables

  I have a doubt about whether Zoho Analytics Query Tables provide built-in functions for start date, end date, and the current month

• Zoho Commerce in multiple languages

  When will you be able to offer Zoho Commerce in more languages? We sell in multiple markets and want to be able to offer a local version of our webshop. What does the roadmap look like?

• Nimble enhancements to WhatsApp for Business integration in Zoho CRM: Enjoy context and clarity in business messaging

  Dear Customers, We hope you're well! WhatsApp for business is a renowned business messaging platform that takes your business closer to your customers; it gives your business the power of personalized outreach. Using the WhatsApp for Business integration

• Connectivity issues with Google Calendar and third-party integrations

  Description: We are currently experiencing a critical failure with Zoho CRM third-party connections. This issue is heavily affecting our primary workflow. Symptoms: Sync Failure: Existing Zoho CRM to Google Calendar connections have been failing for approximately

• Dynamic image in form works in the app but not on the customer portal.

  img = frm_Fichas[ID == input.Nombre].Foto; imgno = Nophoto[ID2 = 1].Image; if(len(img) > 1) { img = img.replaceAll("/sharedBy/appLinkName/",zoho.appuri); img = img.replaceAll("viewLinkName","Fichas_de_personal_public"); img = img.replaceAll("fieldName","Foto");

• Incorrect Functioning of Time Logs API (Version 3)

  We need to fetch the list of time logs for each task for our company internal usage. We are trying to achieve it by using the next endpoint: https://projects.zoho.com/api-docs#bulk-time-logs#get-all-project-time-logs Firstly, in the documentation the

• How can I export all Deluge code across the application?

  I’m working on a application with multiple forms, reports, and HTML views, where Deluge scripts are used across workflows, field actions, and custom functions. Is there a way to export all Deluge scripts into a single file for easier search?

• First Name in Mail

  While sending a mail/message to the user, I want only the first name to be displayed—for example: “Hi John” instead of the full name using "Hi ${Name_Field}"

• Can you import projects into Zoho Projects yet?

  I see some very old posts asking about importing project records into Zoho Projects. But I can't find anything up to date about the topic. Has this functionality been added? Importing tasks is helpful. But we do have a project where importing projects

• Updating Sales orders on hold

  Surely updating irrelevant fields such as shipping date should be allowed when sales orders are awaiting back orders? Maybe the PO is going to be late arriving so we have to change the shipment date of the Sales order ! Not even allowed through the api - {"code":36014,"message":"Sales orders that have been shipped or on hold cannot be updated."}

• 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.

• Deleting unwanted ticket replies

  Hello, In a Zoho Desk Ticket thread, sometimes one of the recipients has auto-reply activated. This creates a new message in the Ticket thread that not only pollutes the thread, but most importantly cannot be replied properly because usually auto-reply e-mails don't do "reply all", so the other recipients are not included. I want to delete such a message in the Ticket thread. I searched the help of Zoho Desk, but only found a way to mark as Spam (https://help.zoho.com/portal/kb/articles/marking-support-tickets-as-spam)

• Issue updating Multi-Select Picklist via API (saves as string instead of checking boxes)

  Hi everyone, I'm hoping someone can point out what I'm doing wrong here. I'm stuck trying to update a custom multi-select field via the Desk API and it's driving me a bit crazy. I have a multi-select picklist called "Buy years" with options like 2023,

• Page variable not receiving URL parameter in Creator 6 HTML snippet Deluge — Canada DC

  I have a Creator 6 app on Canada DC. I'm trying to pass a URL parameter to an HTML snippet page via Deluge but the variable always returns empty. Setup: Page: MYC_Meeting_Tool Page variable declared: submission_id, type Text Page Script tab contains:

• Next Page