Singapore GST Calculator

Buying or selling in Singapore? GST starts with the standard 9% rate. Calculate it exactly here — free, in your browser, no signup. Singapore's GST is 9%.

Singapore GST Calculator

Results update live as you type. Amounts in SGD. Nothing leaves your browser.

Your Numbers

What do you want to do?

Amount (before tax)

Tax rate %

Common rates

“Add tax” starts from a net price. “Remove tax” works backwards from a total that already includes tax. This is the STANDARD rate in Singapore — reduced rates, zero-rating and exemptions may apply to specific items. If you know a different rate applies to your item, type it into the rate field.

Your result

0.00

total including tax

Net amount (before tax)0.00

Tax amount0.00

Gross amount (with tax)0.00

Add this to a free invoice →

Standard rate verified October 2026 · Source: VATupdate — Global VAT rates by country, July 2026

How to calculate Singapore GST in 3 steps

Enter your amount. Type the price you are working with — either before tax or tax-inclusive, depending on what you have.
Pick the rate and direction. The 9% standard rate is pre-filled and editable; choose “Add tax” or “Remove tax”.
Read the split instantly. You get the net amount, the exact tax, and the gross total — ready to quote, invoice, or check a receipt against.

Why getting the Singapore split right matters

Getting the tax split wrong is how invoices turn into arguments: the net, the tax and the total must all be visible and correct. This calculator shows all three instantly, both ways — adding tax to a net price and extracting it from a gross total. When the numbers are right, drop them straight into the free invoice generator.

See all 61 countries →

Singapore GST FAQ

The standard rate is 9%. Singapore's GST is 9%.

Multiply the net price by the rate and add it on: a S$1,000.00 item at 9% gives S$90.00 of tax and a S$1,090.00 total. In the calculator, choose “Add tax”, enter the amount and rate, and the split appears instantly.

Divide the gross total by (1 + rate ÷ 100). At 9%, a S$1,000.00 total divides to a S$917.43 net — the tax inside it is S$82.57. Choose “Remove tax” in the calculator and it does this for you.

No. Most GST systems zero-rate exports and exempt or reduce essentials such as food, medicine or education — but which items qualify differs by country, so check the local rules for your item. The calculator uses the standard rate; type a different rate if your item qualifies for another.

Yes — unlimited calculations, no signup, no watermark. Everything runs in your browser; nothing you type is uploaded anywhere.

Use the free invoice generator: add your items, choose flat tax, per-line tax or GST mode, and the tax is calculated and shown on the invoice automatically — ready to download as a PDF.

Singapore GST Calculator