How much more tax will you pay after the 2026 Budget?

The Budget keeps the thresholds frozen until the end of 2030-31, so the tax in the table is what the law now says you would pay.

The extra tax is the difference from what you would have paid had every threshold kept pace with prices. That means the tax-free allowance, the £100,000 point where you start to lose it, the tax bands and the National Insurance limits. Prices follow the forecast the Office for Budget Responsibility published with the Budget, and your pay is assumed to rise with them too.

This is one way of measuring what commentators call fiscal drag. Some prominent financial press calculators use this approach. The law itself would have raised only the tax-free allowance and the basic rate band, and left the £100,000 point where it is. Raising that point too is why someone earning a little over £100,000 sees the largest extra tax.

In today’s money means the later years’ pounds are scaled back by the same forecast, so you can compare them with your pay today.

The figures assume your salary is your only income, with no pension contributions, company benefits, student loan or Child Benefit charge, and that you are under State Pension age, where National Insurance stops. Pension contributions change the figures, most of all close to the £100,000 point.