Function #48: Manage fixed installment payments using Zoho Books

Function #48: Manage fixed installment payments using Zoho Books



Hello everyone, and welcome back to our series!

Businesses offer installment payment options to their customers, particularly for expensive purchases, to ease the financial burden on them. By breaking down the total cost into smaller, more manageable payments, businesses can attract a wider audience who may not be able to afford large upfront payments. This approach not only increases the likelihood of making more sales, but also helps to spread revenue over time, improve cash flow, enhance customer satisfaction and loyalty, and provide a competitive advantage in the market.

We receive numerous requests from our users regarding the handling of these installment scenarios. We heard you loud and clear. Today, we are excited to share a solution that utilizes custom functions to manage installment payments in Zoho Books.

Let's take the example of Mr. John Hector, who wants to buy a 75-inch TV from Zylker Electronics, priced at a hefty $2,300. He is finding it difficult to pay the entire amount upfront. Therefore, Zylker Electronics offers him the option to pay in installments. They mutually decide that John will spread the payment over 5 months, committing to monthly installments of $460 until he settles the entire purchase amount. Let's delve into how this process can be efficiently managed within Zoho Books using custom functions.

Firstly, Zylker Electronics should create a sale invoice of $2,300 in their Zoho Books organization. While creating it, they should input the start date of the installment and the number of installments in two custom fields. For instance, if the sale was made on 01.04.2024 and Mr. John agreed to pay in 5 installments starting on 10.05.2024, the start date should be entered as 10.05.2024, and the number of installments as 5.

Two custom functions will come into play: one to generate the retainer invoices to collect the installment payments and another to apply the retainer payments to the sale invoice.

Based on the number of installments entered the function will determine the amount to be charged as monthly installments.
Installment amount = Total Amount Payable / No of installments = $2300 / 5 = $460.

On the specified start date, the first function will create and send the retainer invoice for the first installment. Once the payment for this installment is recorded, the second function will apply it to the sale invoice, reducing the balance accordingly. The process repeats each month, generating and sending retainer invoices for subsequent installments until all 5 are completed. Each retainer invoice will be for $460 and due on the 10th of every month for 5 consecutive months. As each retainer invoice is paid, the second function will automatically apply it to the sale invoice, thereby recognizing the income.

Prerequisites: 

1. Create a Connection named "zbooks" to successfully execute the scheduler. You can watch the GIF attached below to know how to create the connection.




2. Create a Date-type custom field called "Installment Start Date" for the Invoices. This field will be used to input the starting date for installment payments.



3. Create a Decimal-type custom field called "Number of installments" for the Invoices. Here, you'll specify the agreed-upon number of installments. Using this information and the total invoice amount, the function will determine the monthly installment amount.



4. Create a new Retainer Invoice template with the document title "Installment Payment". Then, copy the template ID (You can get the ID from the URL of the webpage) and substitute it into line 26 of the first function. This ensures that all the retainers sent for collecting installment amounts are correctly labeled.



(1) Custom Function to create Retainer Invoices:

Navigate to Settings -> Automation -> Workflow Actions -> Custom Functions -> +New Custom Function -> Module -> Select Invoice -> Add the function code from this GitHub Link -> Save. 



(2) Workflow Rule to create Retainer Invoices:

Go to Settings -> Automation -> Workflow Rules -> +New Workflow Rule and set up the workflow rule as shown below:-




In the final step of this workflow rule, associate the custom function you created and then hit Save.

(3) Custom Function to apply installment payments to the sale invoice:

Navigate to Settings -> Automation -> Workflow Actions -> Custom Functions -> +New Custom Function- > Module -> Select Retainer Invoice -> Add the function code from this GitHub Link -> Save. 



(4) Workflow Rule to apply installment payments:

Go to Settings -> Automation -> Workflow Rules -> +New Workflow Rule and set up the workflow rule as shown below:-






In the final step of this workflow rule, associate the custom function you created and then hit Save.

We really hope that today's functions help you streamline the process of handling installments in Zoho Books. If you need any assistance in customizing the functions to better suit your needs, please do not hesitate to contact us at support[at]zohobooks[dot]com. We are always happy to help you. 

Also, for those looking to collect varying percentages of the invoice total as installments, stay tuned! 

Regards,
Shireen Farhana
Zoho Books

    • Sticky Posts

    • Introducing Invoice Consolidation for Offline Subscriptions

      Hello Folks, Glad to announce the feature of Invoice Consolidation for Offline Subscriptions. If you are having multiple subscriptions for your customers, now, you can send a single consolidated invoice for all the Offline Subscriptions that are getting renewed on the same date. Advantage?  Customers will be receiving single invoice instead of multiple invoices upon renewal. Also reduces your efforts in follow-up with your customers for payment collections. For Example: If Customer has Subscription

    • New feature: Create back-dated subscriptions

      Hello from the Zoho Subscriptions team. :)   We’re happy to announce that today marks the launch of a much-awaited feature: creating back-dated subscriptions!   From here on out, whenever you create a new subscription with an activation date that is earlier than the present date, you’ll no longer get an error. Instead, you'll be creating a back-dated subscription. This means that the subscription started at that earlier point in time. The next billing date will be calculated automatically based on

    • Announcement Regarding Notification Emails

      Hello Everyone! This announcement is regarding the admin notification emails which you've been receiving from the email address "support@zohosubscriptions.com". From the 1st of October, 06:00 GMT, the emails with the following subjects will be sent from "no-reply@zohosubscriptions.com". Unable to send invoice for the profile - {profile_name} Unable to process auto payments. If you have set up any filters or workflow in your email account, please add "no-reply@zohosubscriptions.com” and  “support@zohosubscriptions.com”

    • Zoho Subscriptions plugin for WordPress

      Zoho Subscriptions plugin for WordPress allows you to easily embed your plan specific checkout page in an iframe with just a few mouse clicks and without a single line of code. How can WordPress Zoho Subscriptions Plugin boost your productivity? It's now easier to embed Zoho Subscriptions checkout page in your WordPress site. Forget the old method of logging in to Zoho Subscriptions, copying a URL and scripting to make adjustments. All this can be done automatically through this plugin. A great time

    • Indian GST organisation Migration Guide

      With respect to the new GST regime releasing on July 1, 2017in India, Zoho Subscriptions Indian edition is also gearing up to make your business GST Ready. This article focuses on how to get your existing organisation in Zoho Subscriptions to migrate to the new GST regime.    Note:  Any organisation created on or after July 1, 2017 will already be GST ready. You wouldn't have to migrate your organisation. Migrating your existing organisation to support GST To migrate your existing organisation to

    Nederlandse Hulpbronnen


      • Recent Topics

      • Address Typeahead Extension for Zoho Books

        I installed the Address Typeahead extension for zoho books but when I went to configure it, it said that that version was deprecated. Is there a newer version somewhere?

      • Transaction Rules & Customer Payments

        So I have a situation as follows. We have many clients who are all invoiced on the 1st of each month on a recurring invoice for 1 of 10 plans. This means that almost all payment dates are the same (some people pay late) and that a lot of the amounts are

      • Can I Integrate ADP Payroll with Zoho Books?

        Hi, I am hoping that I can integrate ADP Payroll with Zoho Books so that I do not need to manually input the payroll journal entries. Is this possible? If so, how do I do that?

      • Zoho Books | Product updates | February 2026

        Hello users, We’ve rolled out new features and enhancements in Zoho Books. From Advanced Reporting Tags to the ability to mark projects as completed, explore the latest updates designed to improve your bookkeeping experience. Introducing Advanced Reporting

      • Darshan Hiranandani : How many participants can join a Zoho Meeting at once?

        Hi everyone, I'm Darshan Hiranandani, trying to find out the maximum number of participants that can join a Zoho Meeting at once. Has anyone here used Zoho Meeting for larger groups and can share their experience or knowledge about the participant limit?

      • Ask The Expert: Deep Dive into Zoho CRM, Desk, SalesIQ, and Campaigns!

        Are you using Zoho to power your sales, support, and marketing, and have questions about configuration, automation, or best practices? We have great news: the “Ask The Expert” session is coming to the Zoho Benelux Community! This session is specifically

      • How to create a new Batch and update Stock via Inventory?

        Hi everyone, We are building an automation where a user enters batch details (Batch Number, Mfg Date, Expiry, and Quantity) into a Custom Module. I need this to trigger an API call to Zoho Inventory to: Create the new batch for the item. Increase the

      • Zoho books Inventory valuation report VS Stock GL value

        At one client, we track inventory using composite (bundled) items, and in the system settings we have enabled the option to prevent stock from going below zero. After the year-end physical count and quantity adjustments, we identified a mismatch: Inventory

      • Zoho Zoom extension for CRM

        When meetings are booked through Zoho using the Zoom extension, the Zoom link in the invite is a host start link that contains an expiring ZAK token. The invite should instead use a standard attendee join link or a non-expiring host link - why is this

      • Stereo audio

        L.S. Is stereo audio supported in Zoho Meetings? I would like to conduct music lessons with Meetings, but the audio needs to be good (if not great!) and stereo, and not too much compressed and such.

      • Zoho Surveys

        Dear Zoho Support Team, I hope this message finds you well. I am writing to inquire about the availability and documentation for the Zoho Survey API. Background: I am currently working on a project that requires programmatic access to survey data and

      • Zoho FSM API Delete Record

        Hi FSM Team, It would be great if you could delete a record via API. Thank you,

      • Writing SQL Queries - After Comma Auto Suggesting Column

        When writing SQL Queries, does anyone else get super annoyed that after you type a comma and try to return to a new line it is automatically suggest a new column, so hitting return just inputs this suggested column instead of going to a new line? Anyone

      • New Enhancements to Zoho CRM and Zoho Creator Integration

        Hello Everyone, We’ve rolled out enhancements to the Zoho Creator and Zoho CRM integration to align with recent updates made to the Zoho Creator platform. With enhancements to both the UI and functionality, This update also tightens access control by

      • Desk API that can search Merged Tickets

        Is there any method that can still search a ticket that was already merged? zoho.desk.searchRecords - doesn't explicitly mention

      • Issue with "Send Email" from Quotes not loading Email Template data

        Hi everyone, I'm currently experiencing an issue when using the "Send Email" option from a Quote record in Zoho CRM. What’s happening: When I go to the Quotes module and select a record, then click Send Email, the attached file (Quote) correctly pulls

      • Suggestions for Improved Table Management and Dashboard Filter Controls in Zoho Analytics

        Dear Zoho Analytics Community, I hope you are doing well. I would like to share a few suggestions based on issues I am currently experiencing while working with visualizations and dashboards. Firstly, when I create a new visualization using the Sales-Order

      • Zoho Projects and CRM Integration in Analytics

        Hi Team, In Zoho CRM, I’ve integrated CRM with Zoho Projects and associated a project within the CRM. The integration is visible under the Deals module. However, I’m unable to find this data in Zoho Analytics. Does anyone know where this information is

      • Cursor lands on disabled fields when tabbing through forms

        As of yesterday, form behavior has changed w/ regard to disabled fields. Previously when tabbing through a form the cursor would skip over disable fields (as would typically be desired). But now the cursor is landing on all disabled fields, in all of

      • Permission query

        we have two permission settings i.e 'user permission ' & 'portal user permission' and both have the same setting that we enable for our users, Now those who have access to user permission can see a button on the pivot table, "regenerate" but those who

      • Zoho Forms sheet prefil

        I've been using zoho sheet prefill for a week and it was working perfectly, as soon as i deleted the particular sheet and replaced it with another one no matter what I do it cant find the record and i get this message. Could you please assist me to resolve

      • "Create Deal" button should default to the currently selected layout/pipeline

        When viewing Deals in Kanban or List view with a specific layout and pipeline selected, clicking "Create Deal" should default to that same layout — not the profile's default layout. Currently it always opens the default layout regardless of context, requiring

      • Zoho mail admin panel not opening

      • Canvas: is it possible to have a fixed header?

        Hello. Does Canvas provide the option to have a fixed header, similar to the standard view? It would also be interesting for other parts of the interface, like the header or sidebar of the tab section. Thanks!

      • Removing Related Modules Lookup Fields Assignment / Relationship

        Issue: When creating a related list, I accidently selected module itself creating a circle reference. See attached. Situation: I wish to relating a custom module called "Phone Calls" to Leads and Contacts. Outcome: 1) I either want to remove the this

      • Zoho LandingPage pricing update: Essentials plan is now fully free!

        Hello Everyone, We have updated the Zoho LandingPage pricing structure. The Essentials plan, previously priced at $9 per month for 1,000 visitors, is now fully free, and the visitor limit has been increased to 5,000. With this change, users can start

      • ZOHO.CRM.UI.Record.open not working properly

        I have a Zoho CRM Widget and in it I have a block where it will open the blocks Meeting like below block.addEventListener("click", () => { ZOHO.CRM.UI.Record.open({ Entity: "Events", RecordID: meeting.id }).catch(err => { console.error("Open record failed:",

      • Zoho Survey – Page Skip Logic Not Working

        Hi everyone, I'm experiencing an issue with the page skip logic in Zoho Survey. Last week, it was working fine, and I haven’t changed anything in the settings. However, today the skip logic is not working at all. I also tried testing it with different

      • Automatically create an Delivery Challan basis a Sales Order.

        Hi, I wanted to know if there is a possibility to automatically populate a Delivery Challan basis a Sales Order. Is it possible to do this with custom functions? If yes, how? 

      • Zoho Form URL displays incorrect name

        Hi, I have a form I created called "Design Request form". It displays this way everywhere I look. However, in the URL, it shows up as "DesignJobRequestFormFINAL011325PROOFV1B" and I'm not sure why. I can't find where to fix this. Does anyone have any

      • Introducing Radio Buttons and Numeric Range Sliders in Zoho CRM

        Release update: 1. 2 March 2026: Currently out for CN, JP, AU and CA DCs (Free and standard editions). For other DCs, this will be released by mid-March. 2. 26 March 2026: CA, SA, AU, JP, CN DCs - Free, Standard, Professional, Enterprise, Ultimate, CRM

      • Finding rhythm through poetry

        Poetry has long been a powerful form of expression, discovery, and reflection. For many, it is a way to pen down their thoughts and experiences. The "poetic license" allows writers to shape their words with rhythm and flow. This year, on World Poetry

      • Zoho Desk Ticket SLA Level

        Hello, we have 2 levels of SLA escalation for our Tickets. Is there a way to display on the ticket information the level of SLA escalation the ticket currently on? I am aware that we can see in the ticket history the level of escalation that has been

      • Allow Font Size 11 in Editors...

        That is basic functionality...

      • 【まだ間に合う！】Zoho ユーザー交流会 | AI活用・CRM・Analytics の事例を聞いて、ユーザー同士で交流しよう！

        ユーザーの皆さま、こんにちは。コミュニティチームの藤澤です。 3月27日(金)に東京、新橋で開催する「東京 Zoho ユーザー交流会 NEXUS」へのお申し込みがまだの方は、この機会にぜひお申し込みください！（参加無料） ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー イベントの詳細はこちらから▷▷ https://www.zohomeetups.com/tokyo2026vol1#/?affl=communityforumpost3 ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー

      • Where is the scheduled report in New UI?

        Hi Team, Seems there is not such a field in New UI, hence I have to switch to old UI to handle request..

      • Building a Simple Raspberry Pi + Keypad IoT PoC with Zoho Flow

        I want to share a simple IoT PoC I recently built that connects a Raspberry Pi to Zoho Flow and Zoho Creator. The goal was to send PIN input data from a hardware keypad to Zoho and trigger a servo and buzzer for visual/audible feedback. This can serve

      • What's New in Zoho Billing | January 2026

        Excited about the latest enhancements in Zoho Billing? Our January updates bring an intelligent AI assistant, smarter subscription management, and improved tax compliance, saving you time and reducing manual work. Dive into the details below to see how

      • Is there a way to sell in a practical method multiple subscriptions of the same product? i.e. domain names

        In evaluating Zoho Billing, a hurdle to adopting it is that Zoho Billing does not seem designed to support businesses that sell multiple subscriptions of the same product. In our case, we need to sell and manage several domain names per client. Am I right

      • Update P_Leave: code: 7052 "Employee_ID": "Enter Employee ID"

        Hi, Zoho People - Update Leaves Can someone assist? ------------------------------------------------------------------------------------------ col = Collection(); col.insert("recordid":id); col.insert("Date_Check_Approval":zoho.currentdate); info zoho.people.update("P_Leave",col.toMap());

      • Next Page