VAT calculator

Add VAT to a price, or take it out of a price that already includes it. Sri Lanka 18%, UAE 5%, or any rate. Rates checked 15 November 2026.

Add VAT Remove VAT

Price before VAT

Country

VAT rate (%)

Price before VATRs 1,000.00

VAT at 18%Rs 180.00

Price including VATRs 1,180.00

Runs in your browser. Nothing you type is sent or stored.

The formulas

To find	Formula	At 18%	At 5%
VAT on a price	price × rate	1,000 × 0.18 = 180	1,000 × 0.05 = 50
Price with VAT	price × (1 + rate)	1,000 × 1.18 = 1,180	1,000 × 1.05 = 1,050
Price before VAT	inclusive price ÷ (1 + rate)	1,180 ÷ 1.18 = 1,000	1,050 ÷ 1.05 = 1,000
VAT inside a price	inclusive price − price before VAT	1,180 − 1,000 = 180	1,050 − 1,000 = 50

Rates

Sri Lanka: 18% standard rate, since 1 January 2024. Budget 2027 leaves the rate unchanged.
UAE: 5% standard rate.
Zero-rated and exempt supplies carry no VAT; check which applies to what you sell.

Questions

How do I add VAT to a price?

Multiply the price by the VAT rate to get the VAT, then add it to the price. At 18%, a price of 1,000 has 180 VAT and comes to 1,180.

How do I remove VAT from a price that already includes it?

Divide the price by 1 plus the rate. At 18%, divide by 1.18: a VAT-inclusive price of 1,180 is 1,000 before VAT, and the VAT is 180. Taking 18% off the inclusive price gives the wrong answer.

What is the VAT rate in Sri Lanka?

The standard rate is 18%, in force since 1 January 2024. Some supplies are zero-rated or exempt, and financial services are taxed under separate rules.

What is the VAT rate in the UAE?

The standard rate is 5%. Some supplies are zero-rated or exempt.

Can I use a different rate?

Yes. Choose “Other rate” and type any percentage. The calculator works the same way for GST and sales tax.

Does it include other taxes, such as SSCL in Sri Lanka?

No. It calculates VAT only. Other levies, where they apply, are worked out separately.

More free tools

A free tool by Avenstra Software, a software company in Sri Lanka. We build business software, integrations and AI assistants. Talk to us about your project.