Invoices
Two tax invoices per paid Order, their immutable numbering, and the credit notes a refund issues
A confirmed paid Order produces two tax invoices, not one: your Organization invoices the buyer for the ticket, and Ulsav invoices the Organization for the platform fee. Each is a legal document with its own seller, tax identifier, place of supply, and number.
That split is what makes the paperwork correct. Your accountant sees your revenue and your GST, and Ulsav's fee is a separate supply from a separate seller.
Per paid Order
Two tax invoices
One organizer, one Ulsav
Numbers
Immutable and sequential
Per seller, per financial year
Financial year
April to March
Written as 2026-27
Credit notes
One per seller
Issued when a refund succeeds
Free Orders
No invoices
Nothing was charged
Currency
The Order's
Never converted
Two sellers, two supplies
| Invoice | Seller | For | Tax |
|---|---|---|---|
| Organizer invoice | Your Organization | The admission | Your GST components |
| Ulsav invoice | Ulsav | The platform fee | GST at 18%, zero-rated for foreign Organizations |
Each invoice carries its own taxable value, its own tax components, and its own place of supply. Neither is presented as part of the other's supply.
For the buyer the two invoices add up to exactly what they paid. For you, only the organizer invoice is your revenue.
Numbering
Numbers are sequential per seller and per financial year, and they never change once issued:
| Document | Shape | Example |
|---|---|---|
| Organizer tax invoice | INV/year/number | INV/2026-27/000042 |
| Ulsav tax invoice | ULSAV/year/number | ULSAV/2026-27/000118 |
| Organizer credit note | CRN/year/number | CRN/2026-27/000007 |
| Ulsav credit note | ULSAV/CRN/year/number | ULSAV/CRN/2026-27/000011 |
The financial year runs April to March, so a sale in late March and a sale two weeks later in April fall into different series. Numbers come from a locked counter, so two simultaneous confirmations cannot take the same number.
The split, with real numbers
Order ORD-000123 totals ₹3,894.12: ₹3,150.00 of admission after the coupon, ₹567.00 of GST on it, ₹150.10 of platform fee, and ₹27.02 of GST on that fee.
Organizer invoice, taxable value
the admission after the coupon
₹3,150.00
Organizer invoice, CGST 9%
+₹283.50
Organizer invoice, SGST 9%
+₹283.50
Organizer invoice total
INV/2026-27/000042
₹3,717.00
Ulsav invoice, platform fee
₹150.10
Ulsav invoice, GST 18%
+₹27.02
Ulsav invoice total
ULSAV/2026-27/000118
₹177.12
Both invoices together
₹3,894.12
The organizer invoice bills the admission and its tax; the Ulsav invoice bills the fee and its tax. Together they equal what the buyer paid.
The organizer invoice lists one line per Pass, with the quantity in chargeable units, the unit price, the effective tax rate, and the tax on that line. The Ulsav invoice has a single line for the platform fee.
Credit notes come from the refund
When a refund succeeds, each seller that issued an invoice issues a credit note against it. A credit note is never an edit of the invoice: it is a new document that references its parent.
The tax on a credit note is scaled from the parent invoice's own components, so a refund of one third of an invoice returns one third of each tax component. Amounts are whole paise with the rounding remainder placed on the last component, so a credit note never invents or loses a paise.
Refund amount
₹2,223.52
Organizer credit note
admission plus its tax share
₹2,122.39
Ulsav credit note
fee returned plus its GST share
₹101.13
Credit notes together
₹2,223.52
The organizer part is the refund minus the fee that came back; the rest is Ulsav's credit note for its share of the fee and its tax.
The organizer credit note splits further: ₹1,798.64 of admission and ₹323.75 of tax. That is the same split the refund made, which is why the two records always agree.
An automatic refund of a late or duplicate capture issues no credit note at all, because no invoice was ever issued for it.
The receipt is not an invoice
A receipt is the buyer's breakdown of what they paid. It quotes the Order number and points at the invoices; it never makes up an invoice number of its own.
That distinction matters when a buyer asks for a document. The receipt answers "what did I pay for"; the tax invoice answers "who charged me and what tax applied". Only the invoice is a tax document.
When invoices are issued
Issuance happens after the confirmation transaction commits, so a slow invoice can never hold up a sale. It is idempotent per seller: a duplicate provider callback finds the existing invoices and issues no second set.
Two cases produce nothing at all:
- a free Order, whose grand total is zero
- a paid Order with a zero platform fee, which gets the organizer invoice only
| Document | Where to find it |
|---|---|
| Organizer invoices | Finance → Invoices, and the Order's Invoices tab |
| Buyer's invoices | The buyer's account under Invoices |
| All invoices | The Ulsav platform view |
What can go wrong
Invoices are the one part of the flow that is not retried. If issuance fails after a sale confirms, the Order stays confirmed and correct, but the documents are missing, and nothing reissues them automatically today.
| What happened | Result |
|---|---|
| The invoice step fails after confirmation | The sale stands; documents are missing and need a manual fix |
| A duplicate callback arrives | No second invoice; existing ones are returned |
| The Order was free | No invoices, ever |
| A refund exceeds the invoice | Impossible; refunds are capped at the Order total |
| The buyer has no tax identifier | The invoice is issued without one; billing details are optional |
Failure paths in the tax detail
| What you might expect | What actually happens |
|---|---|
| One invoice with a fee line | Two invoices from two sellers |
| An invoice reissued after a price change | Never; the invoice is frozen at issuance |
| A credit note that edits the invoice | Never; credit notes are new documents |
| An invoice for a cancelled but unrefunded Order | It stays issued; the refund is what creates a credit note |
Related
- Orders — the snapshot every invoice is built from
- Payments — when issuance happens
- Refunds — what creates a credit note
- Pricing and tax reference — the tax rules behind the split