VAT Threshold Calculator: Track Your £90,000 Rolling Registration Limit

Advertisement

VAT Registration Threshold Monitor

✓ Verified for 2026/27

Rolling 12-Month Sales

Enter your gross taxable sales for each of the last 12 consecutive months to check if you must register for VAT.

£
Advertisement
£
£
£
£
£
£
£
£
£
£
£
Total Rolling Sales
£84,000
over last 12 months
Status
Safe
Below £90,000 threshold
Threshold Buffer
£6,000
remaining allowance
HMRC Limit
£90,000
VAT threshold

Threshold Analysis

Total Sales £84,000
HMRC Threshold £90,000
Remaining Buffer £6,000
Sales 93%
Buffer 7%
⚠️ If your rolling 12-month sales exceed £90,000, you must register for VAT within 30 days of the end of the month in which you went over. Failure to register on time can lead to financial penalties.
🛡️
Verified for Accuracy (2026/27 Tax Year)
Fact-checked and audited by David Vance, CTA FCA, Chartered Tax Advisor & Accountant. Verified against official HMRC rules.
Advertisement

How We Calculated This

  1. Input variables: Enter the relevant amounts, rates, or percentages in the form.
  2. Real-time breakdown: The calculator applies HMRC rules and thresholds for the 2026/27 tax year to process the values.
  3. Display outputs: The visual graphs, donut charts, and tables are compiled dynamically to show your net take-home and deductions.

Real-World Examples

Standard Scenario

A basic calculation applying standard UK tax bands and allowances.

Calculation runs based on standard HMRC rules.
Advertisement
With Pension or Deductions

Factoring in a percentage of salary sacrifice or pension contributions.

Deductions are calculated and adjusted accordingly.
Sponsored Content

Related Calculators

Advertisement

Frequently Asked Questions

What is the UK VAT registration threshold for 2026/27?

The UK VAT registration threshold is £90,000. You must register for VAT if your total taxable turnover in any rolling 12-month period exceeds this limit, or if you expect your turnover to exceed £90,000 in the next 30 days alone.

How do I calculate the rolling 12-month VAT threshold?

The rolling 12-month calculation is not based on your calendar year or financial year. At the end of every month, you must sum your taxable sales for the previous 12 months. If that cumulative total exceeds £90,000, you have crossed the threshold and must notify HMRC.

What happens if I cross the threshold and fail to register on time?

If you fail to register for VAT within 30 days of crossing the threshold, HMRC can levy late-registration penalties. These penalties are calculated as a percentage of the VAT you should have paid from the date you were legally required to register. You will also have to pay the backdated VAT on all taxable sales made since your registration date, even if you did not charge VAT to your customers.

Sponsored Content
Advertisement
Advertisement