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

• 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,

• 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 remove chat icon from knowledge base?

  I have set up a knowledge base to hold FAQs and documentation. It is currently standalone, and not integrated into our website. On every page there is a chat button in the bottom left corner that says "We're offline, please leave a message." How can I

• [ZohoDesk] Improve Status View with a new editeble kanban view

  A kanban view with more information about the ticket and the contact who created the ticket would be valueble. I would like to edit the fields with the ones i like to see at one glance. Like in CRM where you can edit the canvas view, i would like to edit

• Automated Dismissal of Specific Notifications and Centralized Control of Toast Notification Settings

  Dear Zoho Team, I hope this message finds you well. We would like to request two enhancements related to notification handling within Zoho Desk: Automatic Dismissal of Specific Notifications: Currently, when certain actions are taken in the ticket list

• 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

• Create case via email

  Good Afternoon, I have just registered and am taking a look around the system. Is it possible to create a case via email.  I.e. an employee/client/supplier emails a certain address and that auto generates the case which then prompts a member of staff

• Show field in spreadsheet view depending on other field value

  Hello. Not sure if this is possible but let's say i have spreadsheet view in Creator with four different fields Field A, B, C and D Then i have a field named Response which for one record could contain only one of the pre-definde choices below A, B, C

• Improved Contact Sync flow in Google Integration with Zoho CRM

  Hello Everyone, Your contact sync in Google integration just got revamped! We have redesigned the sync process to give users more control over what data flows into Google and ensure that this data flows effortlessly between Zoho CRM and Google. With this

• Introducing Assemblies and Kits in Zoho Inventory

  Hello customers, We’re excited to share a major revamp to Zoho Inventory that brings both clarity and flexibility to your inventory management experience! Presenting Assemblies and Kits We’re thrilled to introduce Assemblies and Kits, which replaces the

• Intergrating multi location Square account with Zoho Books

  Hi, I have one Square account but has multiple locations. I would like to integrate that account and show aggregated sales in zoho books. How can I do that? thanks.

• Zoho Learn Zapier Integration

  Hello all, Is there any plan to integrate Zoho Learn with Zapier? It seems almost all Zoho products are in Zapier, with the exception of Learn and Marketing Automation.

• Notice: SalesIQ integration paused on Zoho Sites

  I have this notice on my Zoho Sites in the SalesIQ integration setup. Can someone assist? "This integration has been temporarily paused for users. Reconnecting SalesIQ after disconnection will not be possible until we provide further updates." thank

• Differences between Zoho Books and Zoho Billing

  Without a long drawn out process to compare these. If you were looking at these Books and Billing, what made you opt for one and not the other. Thanks

• New Feature : Copying tickets with all the contents such as conversations/history/attachments etc

  Sometimes our customers and distributors do create tickets (or send emails) which contain more than one incident in them and then also some of the further conversations which are either created by incorrect new tickets or replies to old tickets are being created as combined tickets. In such cases we require to "COPY" the contents of the tickets into separate tickets and merge them into their corresponding original tickets. The "CLONE" feature doesn't copy the contents (especially the conversations

• Como se agregan los empleados

  Necesito saber si para agregar empleados los mismos necesitan tener licencias

• Deluge Error Code 1002 - "Resource does not exist."

  I am using the following script in a Custom Button on a Sales Return. Basically, the function takes the information in the sales return (plus the arguments that are entered by the user when the button is pushed) and creates a return shipping label via

• Adding multiple Attendee email addresses when adding a Zoho Calendar event in Zoho Flow

  I am trying to integrate Notion and Zoho Calendar via Zoho Flow. However, the Attendee email address supported by Zoho Calendar - Create event only supports one email address, so I am having difficulty implementing automation to automatically register

• Deprecation of SMS-based multi-factor authentication (MFA) mode

  Overview of SMS-based OTP MFA mode The SMS-based OTP MFA method involves the delivery of a one-time password to a user's mobile phone via SMS. The user receives the OTP on their mobile phone and enters it to sign into their account. SMS-based OTPs offer

• Books & Desk. Client mapping

  Hi, I’ve been using Zoho Books for several years and am now looking to improve my customer service. I'm experimenting with Zoho Desk and want to sync and map my client data from Zoho Books. However, it seems that mapping requires both contacts to have

• Graceful Handling of Exceeded Option Limits

  Hi Zoho SalesIQ team. I would like to submit a feature request to deal with a bug in salesIQ Current Behavior (Bug): When a dynamic list passed to the Single Select Option Card contains more than 20 options, the Zobot stops responding (freezes/hangs)

• System default SLA descriptions can't be modified

  The system default SLAs have identical descriptions for all SLA levels, but their settings differ. However, I am facing an issue where I cannot modify these descriptions and save the changes. The content of the description box can be edited but the changes

• Adding non-Indian billing address for my Zoho subscription

  Hey Need help with adding a non-Indian billing address for my Zoho subscription, trying to edit the address to my Singapore registered company. Won't let me change the country. Would appreciate the help. Regards, Rishabh

• Zoho Desk - Zoho FSM Integration issue on Mobile and iPad

  Hello Team, I am trying to create a Work Order (WO) using the Zoho FSM integration (Add-on Service) that is integrated with Zoho Desk. The issue is that the integration is not working on mobile devices and iPads. While I am able to create the WO, Request,

• How to create one ZohoCRM organisation out of a multi-organization?

  Hi, we have a multi-org including two different Zoho CRM organizations for two companies using respectively EUR and USD as default currency. I was wondering if there is any easy way to merge the two organizations into just one, so that users may access

• Increase the "Maximum Saved Entries per User" Options Limit

  Hi, You can create lots of saved entries, yet the Limit when you apply one is 25, we may often expect 32 to be in draft, and therefore want to enforce that, can we increase the limit of this field from 25 to 100 (As you can just turn it off and have more

• Gray screen while signing documents

  We are all getting a "gray" screen when trying to sign documents in Zoho sign. Anyone else having issues?

• Reassign Partially Saved Entries

  Hi, I would like to be able to go to Partially Saved Entries and like the option to delete them I would like the option to multi-select and be able to reassign them to another user to complete (Such as when a user has left the company). Thanks Dan

• Improved Integration Failure Information (And Notification Options)

  Hi, When an attachment service for example fails, you just get "Field x - Error", I can check the field it is failing on and find nothing wrong, same file size, type, dimensions, etc. so more information as to the actual issue would be helpful. And an

• Set Frozen Cells in the Report Settings

  Hi, It would be nice to be able to set the frozen cells in the report Settings, and have an option if this is fixed or can be changed after loading (On the next load it still goes back to the Settings). Thanks Dan

• Link Purchase Order to Deal

  Zoho Books directly syncs with contacts, vendors and products in Zoho CRM including field mapping. Is there any way to associate vendor purchase orders with deals, so that we can calculate our profit margin for each deal with connected sales invoices

• Projects custom colors replaced by default orange

  Since yesterday, projects uploaded to Zoho, to which I had assigned a custom color, have lost the customization and reverted to the default color (orange). Has anyone else had the same problem? If so, how did you resolve it?

• Interview booked through Invite but no Notifications

  We have a workflow that was developed through a developer/partner that was tested and worked. Today, we pushed a candidate through the process and invited them to an in-office interview. They were sent the booking link (as usual and as tested before successfully)

• Improve WhatsApp Module in Zoho CRM

  The current WhatsApp module UI in Zoho CRM feels cluttered and complex, especially when handling high volumes of conversations. It would be great to enhance the WhatsApp module UI/UX by adopting a clean and simplified interface similar to Bigin CRM’s

• Automatiser la gestion des SLA dans Zoho Desk avec Zoho Contracts

  Les équipes du service client s’efforcent d’assurer un support rapide, régulier et fiable pour garantir la satisfaction de chaque client. Les accords de niveau de service (SLA) permettent de clarifier les engagements en définissant les termes et conditions

• Create static subforms in Zoho CRM: streamline data entry with pre-defined values

  Last modified on (9 July, 2025): This feature was available in early access and is currently being rolled out to customers in phases. Currently available for users in the the AU, CA, and SA DCs. It will be enabled for the remaining DCs in the next couple

• iOS App doesn't refresh for Document Creation

  Hello Zoho team, I have created a workflow to be used on a mobile iOS device which starts in Zoho Creater and ends with a murge and store function that then opens the newly created document within the Zoho Writer app. This process is working great however

• Dynamic Field Folders in OneDrive

  Hi, With the 2 options today we have either a Dynamic Parent Folder and lots of attachments all in that one folder with only the ability to set the file name (Which is also not incremented so if I upload 5 photos to one field they are all named the same

• Is it possible to transfer data from one related list to another within the same module ?

  In the Leads module, there is an existing default Product related list that already contains data. Recently, I added a custom multi-lookup field, which created a new related list in the same Leads module. Now, I need to move the existing data from the

• Uploading a signed template from Sign to Creator

  Good day, Please help me on how to load a signed document back into Creator after the process has been completed in Sign. Below is the code that I am trying, pdfFile = response.toFile("SignedDocument_4901354000000372029.pdf"); info pdfFile; // Attach

• Next Page