A godown opens in the next state, or a second shop, and suddenly the business has more than one GST registration. Nothing about the trade has changed. What has changed is that the paperwork now splits in two, and most billing software was never told there could be two.
What actually splits
Each registration is its own filer. Its returns are its own, its input credit is its own, and its invoice numbering is its own. Two registrations do not average out into one set of figures at the end of the year — they stay separate all the way through, and anything that mixes them has to be pulled apart before filing.
The wrong way to handle it
Two separate accounts, or one account with the second GSTIN typed into invoices by hand. The first means two logins, two masters, two sets of customers to keep in step. The second means nothing in the software knows which registration an invoice belongs to, so at filing time somebody sorts it out from memory.
What the software has to know
- Which registration raised each invoice — recorded on the invoice, not remembered.
- Each registration's own GSTIN and state, because the state is what decides how the tax on every invoice splits.
- Enough separation that a report can be pulled for one registration without the other's figures in it.
How BizGST Pro does it
The Branches screen holds a branch per registration, each with its own GSTIN and state. The GSTIN is validated on entry and the state fills itself from it rather than being chosen separately — the same mechanism the rest of the product uses, because a state typed by hand and a state read from the GSTIN can disagree. Invoices carry the branch they were raised under, and GST reports can then be pulled branch-wise.
This one is on a paid plan
Branches (Multi-GSTIN) is a Business plan feature. On any lower plan the screen shows an upgrade card instead. Saying so here rather than letting you find out at the screen: the Business plan is ₹999 a month or ₹9,999 a year.
One registration is still the normal case
Most businesses need exactly one and should not go looking for a second. If you are trading out of a single state this screen is not for you, and adding a branch you do not need only creates a second set of figures to keep straight.
What this article does not answer
When a second registration is required, when it is optional, and how transfers between your own registrations are treated. Those are set by rules that change, and the sources are the GST portal and your accountant — not a software blog. What is above is about what your billing software has to do once you already have two.