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Free VAT Calculator (Add & Reverse Remove VAT)

Instantly add VAT to net prices or extract VAT from gross totals at 20%, 5%, or any custom tax rate—complete with a downloadable PDF tax summary.

Create Tax Invoice (PDF)

Fill in your details below and export a print-ready A4 PDF instantly.

Subtotal:£0.00
VAT / Tax:£0.00
Total Due:£0.00

How to Calculate & Reverse-Calculate VAT Manually

Understanding the exact formula for adding or stripping out Value Added Tax prevents rounding errors on invoices and VAT returns:

  • Adding VAT (Net → Gross): Multiply the net price by 1 + (VAT Rate / 100). At 20% UK standard VAT, multiply Net by 1.20.
  • Removing VAT (Gross → Net): Divide the gross VAT-inclusive price by 1 + (VAT Rate / 100). At 20% VAT, divide Gross by 1.20 (or divide by 6 to find the VAT portion).

Frequently Asked Questions

How do I remove 20% VAT from a gross price?

Divide the VAT-inclusive gross amount by 1.20 to get the net amount excluding VAT. Subtract the net amount from the gross amount to find the exact 20% VAT figure.

Can I use custom VAT or GST rates for EU, UAE, or international tax?

Yes. Enter any percentage into the VAT Rate field (such as 19% for Germany, 21% for Netherlands/Spain, 5% for UAE, or 10% for Australia GST).

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