Adding VAT is straightforward
For a VAT-exclusive price, multiply the taxable base by 12.5% and add that amount to the invoice. The calculator also handles quantity, discount and shipping so the result is closer to how a real invoice is prepared.
Removing VAT is different
If a price already includes VAT, you do not multiply the total by 12.5%. You divide the inclusive amount by 1.125 to find the VAT-exclusive base, then subtract the base from the total to find the VAT component.
Not every supply is standard-rated
Some supplies may be zero-rated, exempt or outside scope. This is why the VAT calculator lets users edit the rate and shipping treatment, and why invoice decisions should be checked against the official Inland Revenue guidance.
VAT registration matters for businesses
VAT is a business compliance issue, not only a price calculation. Businesses should check the registration threshold, invoicing rules, record keeping and return requirements before treating VAT as collectible.
Common questions
Frequently asked questions
What is the standard VAT rate in Trinidad and Tobago?+
The standard VAT rate used by the calculator is 12.5%.
How do I remove VAT from TT$1,125?+
At 12.5%, the VAT-exclusive base is TT$1,000 and VAT is TT$125.
Can the calculator handle discounts?+
Yes. It applies discount before VAT so invoice math is clearer.
Official source and scope
Trinidad & Tobago Inland Revenue Division VATRule period: Current published rules within the guide’s stated period and scope
Next scheduled review: 15 December 2026
The guide’s rule statements, scope and linked calculator were reviewed against the primary source shown on the page.
This guide explains general rules and does not replace personalised tax, financial, employment or legal advice. For exact filing, payroll, lending or compliance decisions, use the official source and professional guidance where needed.