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

      • Merged cells are unmerging automatically

        Hello, I have been using Zoho sheets from last 1 year. But from last week facing a issue in merged cells. While editing all merged cells in a sheet became unmerged. I merged it again, but it again unmerged. In my half an hour work I have to do this 3-4

      • Just want email and office for personal use

        I am unclear as how to how I would have just a personal email (already do have it and love it) and get to use docs, notebook, workdrive etc. In other words mostly everything I had a google. I find gocs can be free with 5gb and so can mail with 5gb. Are

      • Unable to change the "credentials of login user" option when creating a connection

        I want to create a new Desk connection where the parameter to use 'credentials of login user' is set to YES. I'm able to create a new connection but am never given the option to change this parameter. Is this a restriction of my user profile, and if so,

      • Show backordered items on packing slip

        Is it possible to show a column on the Packing Slip that shows number of backordered items when a PO is only partially filled? I would also like to see the Backordered column appear on POs after you receive items if you didn't get ALL of the items or partial amounts of items. And lastly, it would be nice to have the option of turning on the Backordered column for invoices if you only invoice for a partial order. -Tom

      • Zoho CRM Community Digest - January 2026 | Part 1

        The new year is already in motion, and the Zoho CRM Community has been buzzing with steady updates and thoughtful conversations. In this edition, we’ve pulled together the key product enhancements, Kaizen learnings, and helpful discussions from the first

      • Zoho CRM Feature Requests - SMS and Emails to Custom Modules & Time Zone Form Field

        TLDR: Add Date/Time/Timezone form field, and be able to turn off auto timezone feature. Allow for Zoho Voices CRM SMS Extension to be able to be added to custom modules, and cases. Create a feature that tracks emails by tracking the email chain, rather

      • BMO bank connection not working with either Yodlee or Plaid

        Been experiencing this issue for almost a month now. Anyone else?

      • Introducing Bigin's Add-in for Microsoft Outlook

        Hello Everyone, Email is an important way to communicate with customers and prospects. If you use Outlook.com for emails and Bigin as your CRM, the Outlook Add-in helps you connect them easily so you can see your Bigin contact details right inside Outlook.com.

      • Ask the Expert – Zoho One Admin Track : une session dédiée aux administrateurs Zoho One

        Vous administrez Zoho One et vous vous posez des questions sur la configuration, la gestion des utilisateurs, la sécurité ou encore l’optimisation de votre back-office ? Bonne nouvelle : une session Ask the Expert – Zoho One Admin Track arrive bientôt,

      • How to Associate Zoho Projects in Zoho CRM

        Hi I need script for associating projects in zoho projects to particular Account in zoho CRM side. It can be done manually but I need the automation for this process. There are no api regarding associating a project in zoho crm account. Need assistance

      • Add Claude in Zoho Cliq

        Let’s add a real AI assistant powered by Claude to your workspace this week, that your team can chat with, ask questions, and act on conversations to run AI actions on. This guide walks you through exactly how to do it, step by step, with all the code

      • Need to set workflow or journey wait time (time delay) in minutes, not hours

        Minimum wait time for both Campaigns workflows and Marketing Automation journeys is one hour. I need one or the other to be set to several minutes (fraction of the hour). I tried to solve this by entering a fraction but the wait time data type is an integer

      • Zoho Books - France

        L’équipe de Zoho France reçoit régulièrement des questions sur la conformité de ses applications de finances (Zoho Books/ Zoho Invoice) pour le marché français. Voici quelques points pour clarifier la question : Zoho Books est un logiciel de comptabilité

      • New in Office Integrator: Download documents as password-protected PDFs

        Hi users, We're excited to introduce password-protected PDF as a download option in Zoho Office Integrator's document editor. This allows you to securely share confidential information from within your web app. Highlights of the password-protected PDF

      • Sales IQ - Zobot en multilangue

        Bonjour, J'ai un Zobot installé sur mon site depuis longtemps. J'ai ajouté plusieurs langues, dans la configuration et dans le générateur de bot sans code Pourtant, le Chat continue à s'afficher en Francais. Comment enclencher le multilangue en front

      • Streamlining E-commerce Photography with AI Background Tools

        Hey Zoho Community, I’ve been messing around with ways to make product images less of a headache for fashion brands on Zoho Commerce. You know how boring generic backdrops can get, and how much time traditional photoshoots eat up, right? I tried out this

      • Unable to Assign Multiple Categories to a Single Product in Zoho Commerce

        Hello Zoho Commerce Support Team, I am facing an issue while assigning categories to products in Zoho Commerce. I want to assign multiple categories to a single product, but in the Item edit page, the Category field allows selecting only one category

      • Collapsing and expanding of lists and paragraphs

        hello Would you ever implement Collapsing and expanding of lists and paragraphs in zoho writer ? Best regards

      • Saving issue

        First problem I opened a MS word file in writer. after the work is done, it does not save instantly, I waited for like 10min and it still did not save. second problem When I save a file, then file gets saved as another copy. I just did save, not save

      • Serious problem with file that contains non-ASCII characters

        I imported many pdf files from Evernote whose names contain Hebrew characters, such as ח רבעוני - ביטוח חיים - סוף רבעון 3 - לשנת 2025.pdf I have two very serious problems: (1) Zoho Notebook cannot open the pdf file; (2) It cannot download the pdf file.

      • Zoho Finance Limitations 2.0 #3: Can't assign a Contact to a Finance Record (estimate, sales order or invoice)

        If you use a business to business scenario with different contact people within the company you can't assign a finance record (estimate, invoice, etc...) to that person. Why this matters? No way to find out which person placed the order without manual

      • Zoho Community Digest — Febrero 2026

        ¡Hola, comunidad! Un mes más os traemos las novedades más interesantes de Zoho para febrero de 2026, incluyendo actualizaciones de producto publicadas oficialmente, cambios de políticas y noticias del ecosistema. Pero antes de lanzarnos a las actualizaciones,

      • 【Zoho CRM】商談タブへのデータインポート

        Zoho使用前にエクセルで管理していた商談情報を、Zoho一括管理のため、商談タブにインポートしたいのですが、お客さまの氏名だけが紐づけられませんでした。 「Zoho CRMにインポートする項目を関連付ける」のところが画像のようになっています。 （弊社では、「姓」を「★個人データ名」という項目名に変更し、フルネームを入れて使用しています。） どのようにしたら氏名をインポートできるかご存じの方がいらっしゃいましたら、ご教示いただきたく、よろしくお願いいたします。 （投稿先が間違っていましたらご指

      • CRM Cadences recognise auto-responses

        I have leads in a Cadence. I get an auto-responder reply "I'm out of the office..." Normally Cadences seems to know that isn't a real reply and keeps the lead enrolled in the cadence. However, today, Cadences has UNENROLLED a Lead who sent an auto-reponse

      • SalesIQ Chat Notifications

        I am the admin of our salesIQ implementation. About two weeks ago, I started hearing/seeing notification for ALL chats messages from monitored agents/chat participants. I don't need to see these, we have a manager who deals with this. I can't stop the

      • How to Create a Fixed Sliding Time Window (D-45 to D-15) in Zoho Analytics ?

        Hello, I would like to create a report in Zoho Analytics based on a sliding time window between D-45 and D-15, with a fixed snapshot of that specific period. The data displayed should strictly reflect activity recorded between D-45 and D-15 only, without

      • Export Zoho Books to another accounting package?

        Is an export feature to Quickbooks or Accpac available (or a form that is easily imported by them)?  My reasons: 1) my accountant, who prepares my corporate tax return, prefers to work with their own accounting system.  If I can convert Zoho books a form that is easily importable into Quickbooks or an Accpac format, this process would be easy. 2) I don't want to keep my data in a proprietary format on the cloud somewhere without a way to easily extract it to a format that can be read my a well established

      • Anchor Links in Dashboards

        Hello,  Our dashboards frequently have multiple sections that would be more easily skipped between using anchor links. Please consider adding an anchor link feature to the text widget? This could be done by adding an anchor link option to the text widget next to the "remove" option (see screenshot). The option would assign an ID to the <div> containing the text widget in the live dashboard. Then, the chosen ID could be linked using a traditional <a href="#link_id"> in the html section of the text

      • Introducing Auto-trigger for Screening Bot

        Still manually sending screening tests after every application? Not anymore. With Auto-trigger for Screening Bot, screening now begins automatically. When a candidate applies for a job that has an attached assessment, Recruit checks whether the test has

      • Importing into Multiselect Picklist

        Hi, We just completed a trade show and one of the bits of information we collect is tool style. The application supplied by the show set this up as individual questions. For example, if the customer used Thick Turret and Trumpf style but not Thin Turret,

      • Add line item numbers to sales order/invoice creation page

        It would be really helpful if there were line numbers visible as we are creating a sales order and/or invoice. There are line numbers visible in the PDF once the sales order is created. I would like to be able to see the line numbers as I am building

      • API to Apply Retainer invoice payment to Invoice

        Hi Team, I could not find  API to apply the Retainer invoice payment to existing Invoice. Can you please help ? Attaching the screenshot

      • Reconciling a month with no transactions

        I'm treasurer for a small non profit cemetery association and I'm trying to reconcile a bank statement for a month that did not have any transactions. Do I skip the month entirely and go a month with transactions?

      • Customize your Booking page using Zia

        We’re excited to introduce an AI-based enhancement that automatically customizes your booking page effortlessly. By simply providing your business website URL, Zoho Bookings can automatically design a booking page that matches or complements your brand

      • Multiple header in the quote table???

        Hello, Is it possible in Zoho CRM to add multiple headers or sections within the Quote product table, so that when the quote is printed it shows separate sections (for example “Products” and “Services”)? To clarify, I’m asking because: This does not appear

      • Zoho mail to contacts and leads, but not to accounts?

        We use the accounts tab a lot for our business because they can be linked to the sales orders. Now we want to use the mail add on to link communication of our emails to our accounts. However this is only possible for contacts and leads? It would be convenient

      • API keys not showing in ZeptoMail dashboard

        Hi there, I'm hoping someone can provide some assistance as support isn't replying. I am trying to configure my transactional emails, but the dashboard doesn't show any of my API details - the `div` is there but it's emtpy. Every time I click "Generate

      • How Does Knowledge Base Search and Article Recommendation Work?

        Hello, I would like to understand how the Knowledge Base search engine works. Specifically, does it search based on: The article title only? The full article content? Both, the article and the content? Keywords? Tags? Also, how does the system determine

      • Zoho Books/Inventory - Restrict Items With Pricebook

        Hi Zoho Team, I'm trying to address as use case where a client needs to restrict which products certain customers can purchase. I have been able to find a way to do this based on the current Zoho Books or Zoho Inventory configuation. My feature request

      • Best Way to Integrate Zoho Campaigns with Amazon SES Without Third-Party Tools

        I am looking for the most seamless and efficient method to integrate Zoho Campaigns with Amazon SES. My goal is to avoid using any third-party automation tools like Zapier, Make, or Pabbly, and instead, leverage Zoho's native capabilities for this integration.

      • Next Page