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

• The challenge of 24/7 connectivity: Being present and meeting customer expectations

  Before television entered our homes, radio was our window to the world. We had to tune carefully to catch voices from distant places. When television arrived, the world began to grow smaller. We can watch rocket launches, see the goal that wins our favorite

• How to download all attachments from inbox, send, other folders in one go

  Hi All, Appreciate if anyone could help me with steps for below requirement. How to download all attachments from inbox, send, other folders in one go. Even mapping to new folder will help me. Thanks in advance.

• Recruit paid support?

  Hi all, Could anyone who has paid support package advise if it provides value for money with regards to support response times? Exploring the idea as unfortunately when we have faced issues with Recruit it has been a 7+ day timescale from reporting to

• Cannot connect mail accounts to Thunderbird

  Hi Support - I'm attempting to add my mail accounts to Thunderbird but I'm getting an unable to login to server error. I tried to use the password associated with my account I received the unable to login error. So I went into Zoho Accounts and generate

• Alias Email Id already exists

  Hi, I just verified my domain sesque (dot) com and now I am trying to create the admin account using admin (at) sesque (dot) com, but I am getting an error saying "Alias Email Id already exists". I used to have another Zoho account with this email address,

• Unable to connect to smtp server, connection timed out

  Hi Team, I am facing below issue, while sending out emails from thunderbird client. It used to work, facing this issue from morning. Error: Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.zoho.com

• javax.mail.authenticationfailedexception 535 authentication failed

  Hi, I am facing 535 authentication failed error when trying to send email from zoho desktop as well as in webmail. Can you suggest to fix this issue,. Regards, Rekha

• Issue with Creator's IF logic

  Hi, I found the following code produces unexpected results: if(-1.0 < 0.0000000) {       info "True"; } else {       info "False"; } if(-1.0 < 0.000000) {       info "True"; } else {       info "False"; } The output returned is: False True However, the

• Kaizen #217 - Actions APIs : Tasks

  Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.

• Client Portal ZOHO ONE

  Dear Zoho one is fantastic option for companies but it seems to me that it is still an aggregation of aps let me explain I have zoho books with client portal so client access their invoice then I have zoho project with client portal so they can access their project but not their invoice without another URL another LOGIN Are you planning in creating a beautiful UI portal for client so we can control access to client in one location to multiple aps at least unify project and invoice aps that would

• Zoho Creator customer portal users

  Hi, I'm in a Zoho One subscription with our company. I'm running a project now that involves creating a Zoho Creater application and using the Zoho Creator Customer Portal.  At most we need 25 customer portal users. In our Zoho One plan we only get 3

• DKIM Verification Failed (Namecheap)

  Hi! I have already set up the TXT records in Namecheap but I keep getting the "Verification Failed" pop up. Was wondering if I'm the only one who has this problem and can anyone help me with this? Thanks!

• Emails stuck in Queue

  Hi there, Since yesterday I have a few out going emails stuck in a queue. It say it will auto retry sending however nothing is happening. It seems to be affecting roughly 50% of my outgoing emails. Please help Thanks

• Soft Bounce from transational emails from BREVO (Sendinblue)

  I manage the website of a client who uses your EMAIL service for the domain floranativadobrasil.com. And I use the BREVO email service, previously called SendinBlue, to send transactional emails about events specific to the website. All emails sent to

• Ability to Edit YouTube Video Title, Description & Thumbnail After Publishing

  Hi Zoho Social Team, How are you? We would like to request an enhancement to Zoho Social that enables users to edit YouTube video details after the video has already been published. Your team confirmed that while Zoho Social currently allows editing the

• Introducing Multi-Asset Support in Work Orders, Estimates, and Service Appointments

  We’re excited to announce a highly requested enhancement in Zoho FSM — you can now associate multiple assets with Work Orders, Estimates, and Service Appointments. This update brings more clarity, flexibility, and control to your field service operations,

• Getting an error Address not found Your message wasn't delivered

  Hey, I'm trying to configure zoho mail for my website https://businessentity.org/ The email is meredith.karter@businessentity.org I'm able to successfully send the mails but when someone sends an email to above mail, this error shoots up: Address not

• Support Uploading YouTube Videos Longer Than 60 Minutes

  Hi Zoho Social Team, How are you? We would like to request support for uploading YouTube videos longer than 60 minutes directly through Zoho Social. Your support team informed us that Zoho Social currently cannot upload videos over 60 minutes due to “API

• Need Faster Help? Try Live Chat Support

  Hello there, We understand that sometimes, whether you’re facing an issue, exploring a feature, or need quick clarification, sending an email and waiting for a response just doesn’t cut it. You need answers, and you need them now. That’s exactly why we

• Can't deactivate Spell Check

  Hi Community, right now I'm using the Zoho Mail Desktop-Software. So far, so good.. many possibilities. Overall very nice. What is extremely annoying right now, is that we are not able to deactivate the Spell Check feature. And we are barely able to focus

• Zoho Toolkit Email Signature Generator

  I'm having real issues with the email signature generator with no matter where I host the photo, Zoho doesn't seem to show the photo on the link provided?

• Company Policy Upload - Request All EE to review and sign

  How can I upload policies into Zoho People and have the employees review them and sign off saying they agree, etc.? Also, if I make a revision to a policy, I would like that changed or updated policy to be distributed or have the employees notified that

• Zoho Sign Global Settings vs. Template and Document

  Hello, We are running into an issue on a current use case. We already use Zoho Sign. Now that KBA is available, we want to begin using it in our tax delivery process, by allowing clients to sign electronically, but also download a copy of their return

• Zoho Mail Desktop Crashes on Linux - Ubuntu 24 LTS

  Hi, I have been trying to run the desktop app on Ubuntu for the past few day with no luck. I have tried both the .deb package and the appImage. When I attempt to open the app. It just crashes immediately. The crash error dialog appeared once and I cant

• Can't login to Zoho mail

  I'm logged into Zoho but when I try to go in zoho mail I get: Invalid request! The input passed is invalid or the URL is invoked without valid parameters. Please check your input and try again. I just set up my mx records and stuff with namecheap a few

• Zoho IP blocked by SpamCop

  Hi, Many of my emails are blocked and I receive this:  INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE :spamcop.mimecast.org Blocked - see https://www.spamcop.net/bl.shtml?136.143.188.51. - https://community.mimecast.com/docs/DOC-1369#550 [DGwIYPPSOfWI

• Can I execute two 'functions' when completing a mail merge from CRM?

  Hi, I have set up a mail merge from CRM Deals to a template. I want a copy of this to be saved in Workdrive, and then a copy also saved back into the deal record from which the merge occurred. I can do both independent of each other, and managed to get

• 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

• Auto-sync field of lookup value

  This feature has been requested many times in the discussion Field of Lookup Announcement and this post aims to track it separately. At the moment the value of a 'field of lookup' is a snapshot but once the parent lookup field is updated the values diverge.

• Custom validation in CRM schema

  Validation rules in CRM layouts work nicely, good docs by @Kiran Karthik P https://help.zoho.com/portal/en/kb/crm/customize-crm-account/validation-rules/articles/create-validation-rules I'd prefer validating data input 'closer to the schema'

• No Ability to Rename Record Template PDFs in SendMail Task

  As highlighted previously in this post, we still have to deal with the limitation of not being able to rename a record template when sent as a PDF using the SendMail Task. This creates unnecessary complexity for what should be a simple operation, and

• Server error when trying to Data > Sort > Custom Sort

  Been using Data > Sort > Custom Sort for a while, now it has suddenly stopped working. When selecting the same data range and trying to execute, I get "Sorry! There was a problem saving your last edit. Please try again."

• To Assign a genrated pdf to a file upload field using delug

  content = "<html><body>HTML Content on page One <div style='page-break-after:always'></div> HTML Content on page Two </body></html>"; file = zoho.file.convertToPDF(content); file.setFileName("Name of the file"); <variableName> = <FormLinkName>[ID == input.ID];

• TArgets To Accounts (Modules)

  How can i set sale target to Customers (Accounts Module)

• Breaking barriers with multilingual WhatsApp templates in IM

  Ever wondered what it feels like to be greeted in your own language by a brand you love? A “Welcome!” feels nice, but a “¡Bienvenido!” or “स्वागत है!” feels personal. In today’s global world, conversations often need to cross both time zones and cross

• Super Admin Logging in as another User

  How can a Super Admin login as another user. For example, I have a sales rep that is having issues with their Accounts and I want to view their Zoho Account with out having to do a GTM and sharing screens. Moderation Update (8th Aug 2025): We are working

• How to share private Opportunities with whole org at an account level

  Opportunities are currently set to private, so our sales team only sees their own opportunities, along with their manager and upper leadership. The need is the ability for the rest of the Org to see the opportunities at an account level, not within the

• New in Smart Prompt: Record Assistant for contextual assistance, and support for new AI models

  Smart Prompt helps teams stay informed and move faster by providing relevant suggestions where work happens in CRM. With this update, Smart Prompt becomes more adaptable to your organization’s AI preferences. You can now choose which Large Language Model

• 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

• Problema Verificacion con proveedor NIC.AR

  No puedo realizar la verificación del correo, he seguido los pasos indicados y configurado los MX. Y no puedo verificar el correo. He leido en el foro que otros han tenido el mismo problema. Alguno pudo solucionarlo?

• Next Page