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Invoicing17 Sept 2026 · 5 min read

The Bills You Send Every Month

Some invoices are a decision. Most are not. Rent on a shop you sublet, an annual maintenance contract, a monthly retainer, a subscription you resell — same customer, same lines, same amount, every month until somebody cancels it. Typing those is not work. Forgetting one is expensive.

The failure is not the typing, it is the gap

Nobody forgets rent in April. People forget it in the month they were travelling, or the month the GST return was due, or the month a family thing happened. And a missed recurring invoice is uniquely quiet: the customer is not going to remind you, and it does not show up as an unpaid bill because the bill was never raised.

It surfaces months later as a conversation about whether you invoiced for June, which neither side can settle from memory.

What a recurring rule actually needs to copy

More than the amount. An invoice is not one number — it carries the customer's state, whether the supply is interstate, the tax split that follows from that, and every line with its own description, HSN, quantity, rate and rate of tax. A rule that copies the total and re-derives the rest will drift the first time anything about the customer changes.

Dates are the part people get wrong

Two dates matter and they behave differently. The invoice date should be the day it is raised. The due date should not be a fixed date copied from the original — it should keep the same *gap*. If the template invoice gave the customer fifteen days, every generated one should give fifteen days from its own date, not land on the same day of the month the original happened to fall on.

How it works in BizGST Pro

You raise one invoice the normal way, then turn it into a recurring rule — weekly, monthly or quarterly. A job runs daily and generates the ones that have come due.

Each generated invoice gets its own number in the running financial-year series, today's date, the same customer and place of supply, the same interstate flag, every line copied with its HSN and tax, and a due date that preserves the original gap. It is created unpaid, and it is linked back to the invoice it came from, so the chain is visible rather than a set of identical-looking bills.

A rule can be switched off without being deleted, which is what you want when a contract is paused rather than ended.

The same problem on the money-going-out side

Rent you pay, salaries, software subscriptions — the expenses that are equally predictable and equally easy to leave unrecorded. Those can run on the same daily schedule, posted automatically rather than remembered.

This matters more than it sounds for one specific reason: a profit figure built only from the expenses somebody remembered to enter is flattering and wrong, and the predictable ones are precisely the ones that get skipped because they feel too obvious to write down.

Which plan

Recurring invoices and recurring expenses are on the Basic plan (₹499 a month) and above — not on Free. Saying so plainly here rather than letting you find out at the button.

Before you switch it on

Check the template invoice once, properly. A recurring rule is a machine for repeating something, including a mistake. A wrong HSN, a stale rate or the wrong place of supply will be reproduced faithfully every month until someone notices — and because the invoices look identical, nobody reads them.

Stay GST-compliant without the hassle

BizGST Pro creates compliant invoices with the correct tax split automatically, tracks payments, and keeps your GSTR-1 ready. Free forever to start.

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