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United Kingdom Reverse VAT Calculator
UK shelf prices usually include 20% standard VAT. Divide by 1.20 to get the net amount before VAT for invoices, expenses, and B2B comparisons.
Live calculation
United Kingdom Reverse VAT Calculator
Enter the total you paid (VAT included) and your rate.
Step 2 — Your breakdown
Original price (before tax)£0.00
Tax amount£0.00
Final price (verified)£0.00
Explain calculation
We reverse the tax using the standard formula:
Convert the rate to a decimal (e.g. 8.25% → 0.0825).
Divide the final price by (1 + rate) to get the pre-tax amount.
Subtract pre-tax from final to get the tax portion.
Enter a total and tax rate to see your breakdown.
Standard rate20.00%
Tax typeVAT
Typical combined20% standard VAT
Standard 20% VAT (Value Added Tax)
HMRC sets 20% as the default on most goods and services. A £120 till total is £100 net plus £20 VAT when the standard rate applied.
Reduced 5% and zero rates cover qualifying energy, food, and children's items—use the rate printed on your receipt, not a blanket 20%.
B2B, ecommerce, and post-Brexit trade
Registered businesses show VAT separately on many B2B invoices; consumers often see one VAT-inclusive figure. Amazon UK and Shopify UK settlements need per-order rate splits.
Northern Ireland and EU cross-border rules differ—follow the VAT rate on the document for that supply.
London fintech and Manchester ecommerce teams reverse VAT on tax-inclusive SaaS and marketplace gross deposits before quarterly HMRC reconciliation.
Making Tax Digital and record-keeping
VAT-registered businesses must keep digital records linking tax-inclusive receipts to net and VAT components. Reverse calculation validates POS totals against Making Tax Digital submissions before HMRC review.
Mixed-rate supermarket baskets combine 0%, 5%, and 20% lines—split each taxed subtotal before applying one divisor to the entire till total on weekly expense reports.
Reverse UK VAT quickly
Net = gross ÷ (1 + rate/100). At 20%: £240 ÷ 1.20 = £200 net.
Construction reverse charge and certain B2B services may show no VAT on your invoice—you self-account separately rather than reverse from a gross total.
Common use cases
Freelancer expensing VAT-inclusive software.
Retailer reconciling gross Shopify payouts.
London agency unpacking TTC media buys at 20%.
Tips for accurate calculations
Use 20 only when receipt shows standard rate.
Split mixed-rate baskets by line.
B2B reverse charge invoices may show no VAT to you.
Archive MTD digital records.
United Kingdom VAT overview
Rate
Category
Examples
20% standard VAT
Standard VAT
Standard UK VAT on most goods and services.
Reduced
Lower VAT tiers
Many EU countries apply reduced VAT on food, books, or hospitality — use your invoice rate.
Zero
Zero-rated supplies
Exports and certain essentials may be zero-rated; confirm on your document.
London supply purchase
£240 inclusive at 20% VAT.
> ÷ 1.20
> Net £200
> VAT £40
✓
Net £200 | VAT £40 | Total £240
UK VAT compliance
VAT-registered businesses file with HMRC. Confirm Making Tax Digital rules and reduced-rate categories with an adviser. Keep digital links between tax-inclusive receipts and net/VAT splits for quarterly VAT return reconciliation.
Frequently asked questions
20% on most taxable supplies.
£120 ÷ 1.20 = £100 net.
No—5% and 0% apply to specific categories.
UK has its own VAT system after Brexit; rates differ by country.
Follow the VAT rate on your document—NI trade rules differ from Great Britain for some supplies.