Hello,
From speaking about the traditional ways of billing in the previous post, we are moving into the deep sea of billing. We are now in a zone to break out the most complex yet, I would call it the fairest way of billing, the Prorated Billing.
Prorated Billing ensures that customers pay only for the exact portion of a service they consume. Whether they join mid-cycle, switch plans, or cancel early, proration guarantees transparency and fairness.
What is Prorated Billing?
In short, prorated billing involves splitting charges according to the length of service used within a billing cycle. Instead of charging the customer for the entire month regardless of when they sign up or amend the subscription, businesses calculate charges accurately based on time or usage. This directly enhances customer trust and satisfaction and eliminates disputes over charges.
In this post, we will understand how proration works in different industries by examining the major industry types that need/must have proration in their billing strategy.
Scenario: SaaS
A SaaS customer starts the month on the Basic plan, which costs $30/month. Midway through the billing cycle, on the 15th, they realise they need additional features and decide to upgrade to the Pro plan, which costs $60/month.
Without proration, businesses might charge the full $60 or keep them on Basic until the next cycle, which is unfair. With proration, this can be solved by splitting the bill into the part that will be used and the period that has elapsed.
In this scenario, part of the month is charged at the Basic plan cost, and the remaining is charged at the Pro plan cost.
Old Plan | New Plan |
Basic Plan: $30 | Pro Plan: $60 |
Charges per day: $30/30=$1 | Charges per day: $60/30=$2 |
No.of days remaining: 15 | No.of days to be charged: 15 |
Credits Remaining: $1x15=$15 | Amount to be charged: $2x15=$30 |
Net Payable: Amount to be charged- Credits Remaining: $30-$15= $15 |
The Final Invoice Amount must be charged on the 15th, and the customer's subscription will be moved to the Pro Plan.
Scenario: Telecom
Imagine a customer activating a mobile plan costing $60 on the 20th of the month. The company has a standard billing cycle of 30 days. Some businesses might activate the plan for the full plan amount and allow it to be charged again on the set billing cycle. However, that's not the ideal approach.
With Proration, the days before the activation date are excluded, and charges are made only for the exact number of days used.
Plan Amount: $60
Charge per day: $60/30= $2
No.of days to be billed: 10
Final Payable Amount: $20
The Final Payable Amount will be charged on the plan activation date, and the next charge will occur after 10 days, aligning with the billing cycle.
Scenario: Streaming Service
A streaming subscriber who is active in the $120/month Premium plan decides to switch to the $60/month Standard plan after 10 days of usage in the current billing cycle.
Without proration, the customer might feel overcharged for unused Premium days. So, to balance the charges between the higher-priced plan and the lower one, credits will be added to the customer account, which can either be refunded or adjusted for the next invoice cycle.
Old Plan | New Plan |
Premium Plan: $120 | Standard Plan Cost: $60 |
Charges per day: $120/30= $4 | Charges per day: $60/30= $2 |
No.of days used: 10 | No.of days remaining: 20 |
Charges for used days: $4x10= $40 | Amount to be charged: $2x20=$40 |
Remaining Credits: $80 | |
Net Credit: Remaining Credits- Amount to be charged for 20 days: $80-$40= $40 |
The Net Credit will stay with the customer account and will be applied to the next invoice, or it can be refunded.
Proration Across Industries
While SaaS, Telecom and Streaming services are the most common businesses where prorated billing happens quite often, other industries need this,
Logistics Companies operate with standard shipment charges. They might need proration when the volume of the consignment changes in the middle of the cycle.
Internet Service Providers use this when there is a change in plan within the billing cycle.
Fintech and Payment Apps prorate service fees when accounts are opened or closed in the middle of the billing cycle.
Zoho Billing has the finesse to handle these contract amendments effortlessly across industry types. Whether it's a mid-cycle upgrade, a partial cancellation, or a new customer subscribing during the middle of the billing cycle, Zoho Billing ensures invoices are adjusted seamlessly. Proration can be enabled in Zoho Billing with a simple toggle, and the application automatically takes care of all the math in the backend.
Proration Billing is not a burden but a gift wrapped in a hard cover.
Offering fair charges based on usage during billing increases confidence and provides businesses with a reputation for being fair and transparent. But what about usage that happens before it hits the bill? Even with proration in place, there are scenarios where usage happens before it's billed. For instance, a customer may request an add-on, consume additional resources, or make a one-time transaction in the middle of the billing period. These often fall into the category of unbilled charges.

In the next post, we will explore how businesses manage these unbilled charges and why keeping them in check is critical for accurate billing.
Stay Tuned!
Recent Topics
Tip of the week #28: Show/ hide, enable/ disable and empty/ delete your calendars in Zoho Calendar.
The popularity of online calendars has soared in recent years. It's used both for personal and professional reasons. Calendars have evolved into an effective productivity tool in our lives, from creating events for birthdays and anniversaries to scheduling
Tip of the week #30: Share calendars publicly in Zoho Calendar.
In Zoho Calendar, calendars that are created under My Calendars can be shared publicly. Making your calendar public allows others to view it. When you need to share your calendar with a larger group, public sharing can help. You can restrict others from
Tip of the week #31: Share your personal calendars within organization.
Keep your Organization members aware of what's happening. In Zoho Calendar, you can share your personal calendar with all the members in your organization using the Share with org option.When you enable org sharing for a particular personal calendar,
Tip of the Week #33: Appointment scheduler in Zoho Calendar.
In Zoho Calendar, you can use the Schedule Appointment option to share your appointment request form with the public, allowing people to fill out the form to request an appointment with you. This form can be embedded on your website or blog. Visitors
Tip of the Week #34: Embed Calendars using Zoho Calendar
You can make your calendars public and visible to the general public by embedding them in your websites/blogs using Zoho Calendar. You can use the embed code to add your own calendars to your website's/ blog's HTML code, and the calendar will appear on
Tip of the week #35: Migrate to Zoho Calendar from Google Calendar.
If you are looking to move your Google Calendar events to Zoho Calendar, never worry about missing out the events from your Google Calendar. You can migrate the events from Google Calendar using the export option and import it to Zoho Calendar and manage
Tip of the week #36: Migrate to Zoho Calendar from Outlook Calendar.
If you've been using Outlook calendar and looking to migrate to Zoho Calendar, you can seamlessly export your calendars from Outlook and import them into Zoho Calendar without losing any events, participants, and the reminders set for each event. To migrate
Shared calendar issues and duplications
Apparently there was a calendar update? Now when I schedule an event for a team member that has shared his calendar with me, the event makes me the organizer and adds the event to my calendar as well. Previous to this "update" I would scheduled an event
Subscribed Calendar
Hi i have subscribed to a calendar for Holidays in Canada it shows all the holidays perfectly but every one of them has the word Canada before the rest of the name is there a way to remove that word Canada? It takes up a lot of space in the square on
The year that was at Zoho Calendar 2023- Part 1
Hello, amazing community members! Happy new year from all of us here at Zoho Calendar. As we begin the new year, we'd like to thank each and everyone of our community members for your unwavering support and love that you have shown for Zoho Calendar.
Zoho Calendar 2024: A Year in Review
Hello, community members! Happy new year from all of us here at Zoho Calendar. As we turn the page to a new year, we extend our heartfelt gratitude to every member of our Zoho Calendar community for your continued support and enthusiasm. Your feedback
Zoho Calendar not syncing correctly with personal Google Calendar
Coming to this forum as Zoho Calendar support team is not responding, any more. For the past 8 weeks, I have been having an issue with Zoho Calendar not syncing with my personal Google Calendar correctly. I subscribed to Zoho Calendar iCal in my personal
MTA - BAD IP reputation by outlook/hotmail
Messages to Microsoft email servers are bouncing back due to poor reputation. Message: 4.7.650 The mail server [136.143.188.206] has been temporarily rate limited due to IP reputation. For e-mail delivery information see https://postmaster.live.com (S775)
Zeptomail API error 500 internal server error
Hi Everyone, getting this eror continuously! Can anyone please guide around the same! Zeptomail API error 500 internal server error Best Regards
Waiting multiple days to buy credits, causing my website to suffer
So I own a fairly large website that gets a lot of registered users. I use transmail send activation emails, and also forgot password emails. I sent an email to zoho's presales team when I was only at 4K/10K emails sent, hoping to buy more credits before
Follow up
Hello, I sent a message 2 days ago but I don't receive any response and I cannot find my ticket here. this is the ticket: Your ticket has been created with the ticket ID 68925465 and subject "Fwd: Fishing-alert" looking forward to seeing your response.
What's new in TransMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! We've recently crossed the 6 months mark of TransMail's launch. In this time post our launch, we have been constantly working on updating our platform and adding new features
June 2021 in TransMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well. If you're doing less than fine, we truly hope that things only get better for you. We've had a few updates in the past month
TransMail has a new name—ZeptoMail!
Tried navigating to TransMail's community forum but see a different name now? That's because TransMail has a new name. TransMail is now ZeptoMail! As we’ve grown from an internal service used mainly by other Zoho products to an up-and-coming competitor
July 2021 in ZeptoMail!
Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well. We've had a few updates in the past month in ZeptoMail—some new features and some important announcements. Take look at what
Send Email From the ZeptoMail BY API
What is Zeptomail:- Transactional email service with reliable and fast delivery How we can Create a Connection for Zeptomail in Zoho CRM Go to the Setup Click on Connection Enter Connection Details:- Generate Consumer Key & Consumer Secret Using Zoho
Customer email on Opencart 3
When I place an order, 2 emails are sent: 1) administrator 2) to the user The administrator receives a beautiful letter, but the user receives a damaged letter (see screenshot). What could be the problem?
[Announcement] Insert image from URL changes in Zoho Writer
Hi Zoho Writer users! We'd like to let you know that we've changed the behavior of the Insert image from URL option in Zoho Writer for security reasons. Earlier behavior Once you inserted an image URL in a Writer document, the image would be fetched from
Dynamic Signature - Record owner
Hi everyone, I’m using Zoho Writer merge templates from Zoho CRM and have two questions: Owner signature: How can I automatically insert the CRM record owner’s signature in the merged document? I’m not sure where this signature is stored or how to reference
Writer sing up problom
Zoho writer sing up prolom face
Unable to copy into a new document
Whe I create a new Writer doc and attemp to copy and past I get this message. The only way to copy into a document is I duplicate an existing document, erase the text and save it under a different name and then paste the information. Not ideal. Can you
[Webinar] Live demos and user Q&A with Zoho Writer product experts
Join us on June 12, 2025 for live demos based on your use cases and real-world scenarios raised via form. This is also an opportunity to get your questions answered directly by product experts from the Zoho Writer team. Webinar agenda Live demos based
Zoho Writer's built-in citation and bibliography generator
Hey researchers and writers! Do you manually format citations and bibliographies, spending hours jumping between apps and tabs? If so, then check out Zoho Writer's built-in "Citations and Bibliography" feature. Imagine you're writing a thesis on the future
Single and group checkboxes in Zoho Writer's fillable forms
Hey Writer Fam, Are you making the most out of single and group checkboxes in fillable forms in Zoho Writer? Here is a handy tip to optimize your use of checkboxes, both single and group, and enhance your data collection process. Single checkboxes: Single
Collaborate efficiently with Zoho Writer's track changes feature
Hi Zoho Writer Community, Zoho Writer's track changes feature is a simple, built-in solution that helps you and your team work together efficiently. Instead of juggling multiple versions of a document or building up a long email chain of comments, each
Zoho Writer's WordPress extensions
Hey Zoho Writer users! Say goodbye to all your WordPress content publishing woes with Zoho Writer's WordPress extensions. Publish content with all your formatting and images, republish content when you update a document, and more—from a single window
Time-saving table hacks
Hey Zoho Writer Community, Do you find yourself using a lot of tables in your documents? We're here to share some of our time-saving hacks that will help you work more efficiently, organize your data, and make your documents look neat and professional.
Automating document approval and signing with Zoho Writer and Zoho Sign
Hey Zoho Writer Community! Here's another automation tip to make your processes more efficient! Question: Can I send a document for client approval first, then automatically send it for signing with Zoho Sign if they approve? Since it's the same person
Customization hacks in Zoho Writer - Part 2
Hey community, We're back with some more tricks to personalize your documents, save time, and get in the zone when you work in Writer. Check out part 1 of this post if you haven't already. Let's dive right in! Document ruler units Imagine you're creating
Simplify your tax calculations with Zoho Writer
Hello Zoho Writer Community! Tax season can be stressful, but with Zoho Writer, managing your income tax calculations becomes straightforward and efficient. Here’s an example of how you can use the tables and formulae of Zoho Writer to calculate income
Enhance document navigation with headings and TOC
Hey Zoho Writer Community! We're back with some useful features in Zoho Writer that can simplify your document creation and navigation process. Let's dive right in! Check out our video on how to make the most of Zoho Writer's heading and table of contents
Use and download in PDF format of Zoho wirter Merge template using deluge
Hello Zoho Developers. Here is some information about Zoho Writer. Writer is not just another online word processor, it's a powerful tool for editing, collaboration, and publishing. Even with its wide range of features, Writer's pared-down user interface
Customization hacks in Zoho Writer - Part 3
Hello everyone, Welcome back to Part 3 of our customization tips in Zoho Writer! In this third installment, we'll be diving into some essential customization settings that can enhance your document creation experience. Sender email address in mail merge
Daytime saving timezones messing up writer pdf
Hi, I need help for something I can't figure out. I created a Form to collect data and it is set up with my current Daylight Saving Time (GMT-3). This form is used to generate a contract (pdf Writer) with dates from an event that is being held in 4 months
Issue with locked content in Writer
Hi, I have seen the documentation which outlines how to lock specific content within a Writer document so that it can't be modified by collaborators, but I have come across an issue. When the editor locks a paragraph for example, then a collaborator can't
Next Page