QashierHQ gives Singapore merchants who accept payments through QashierPay a monthly tax invoice for the payment processing fees and the GST that Qashier charged. This article shows how to generate and download it, how each invoice is dated, and how to check it against your Payout Report.
Applies to
Markets: Singapore only.
Product: QashierHQ.
Requirement: a Singapore account with at least one approved QashierPay payment method. The Tax Invoice menu item only appears once a payment method is approved.
How to generate and download a tax invoice
Log in to QashierHQ.
In the top right corner, click your name. On a phone, click the account icon instead.
Select Tax Invoice from the menu. The Tax Invoice page lists one row per monthly invoice, with the columns Invoice Date, Invoice Number, Invoice Name, Total Amount and Preview / Download.
On the row for the month you need, click Generate Tax Invoice. QashierHQ shows "Tax invoice is generating... It might take up to 10 minutes" and the row reads Generating Tax Invoice... until it is ready.
When the invoice is ready, click Preview to view it or Download PDF to save it. Click Refresh if you need to regenerate an invoice.
How the invoices are dated
Each invoice covers one calendar month and is dated the 1st of the following month. For example, the row with Invoice Date 01/06/2026 is "Tax invoice for May 2026" and covers the fees and GST on your transactions dated in May 2026.
How to check a tax invoice against your Payout Report
In QashierHQ open Money & Finance > Payout Report.
Set a custom date range from 7 days before the start of the invoice month to 7 days after the end of it. For a May 2026 invoice, that is 24 Apr 2026 to 7 Jun 2026. The extra week on each side catches transactions whose payout was delayed. The report allows a range of up to 90 days.
Click Export to download the report.
In the export, keep only the transactions whose transaction date falls in the invoice month.
Compare the totals with the invoice:
Transaction Amount: should match exactly.
Payment Fees: may differ by a few cents, because fees are rounded up per transaction.
GST: should match. For PayNow, GrabPay and other e-wallet payouts from 5 Jan 2026, GST is 9% of the payment fees, added up per daily settlement and rounded up to the cent once. See [SG] How your PayNow & e-wallet payouts are calculated (fees, GST and rounding).
If something goes wrong
Issue | Cause | What to check |
Transaction amounts don't match | A transaction happened in the invoice month but its payout was processed in a different month. | Check whether the transaction appears in the previous or next month's invoice. |
Payment fees differ by a few cents | Fees are rounded up per transaction. | Small differences of a few cents are expected. |
Missing transactions | The transaction was not approved, its payout was outside the extended window, or its transaction date is outside the invoice month. | Confirm the transaction is approved, its payout falls within the window (for example 24 Apr to 7 Jun for a May invoice) and its transaction date is within the month. |
GST looks wrong | For e-wallet payouts from 5 Jan 2026, GST is 9% of the fees, added up per daily settlement and rounded up once, not per transaction. From 21 Nov 2025 to 4 Jan 2026, GST was rounded per transaction instead. | Recalculate from the fee totals in the Payout Report breakdown. See the article linked above. |
"Failed to generate tax invoice. Please try again." | Temporary error | Wait a few minutes and click Generate Tax Invoice again. |
Contact support if the difference is more than $10, an entire month is missing from the invoice, or the invoice still fails to generate. WhatsApp +65 8887 7687 or call +65 3129 8269, 9am–9pm, 7 days a week. See Contact Qashier Support by Phone, WhatsApp, LINE or Viber.
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Last verified: 25 Sep 2026 · Markets: SG