If you save into UK pensions, the annual allowance caps how much you can contribute each tax year with tax relief. High earners face a tapered allowance, and unused allowance can be carried forward from the last three years. This checker combines all three rules.
How it works
The standard allowance is 60,000 GBP. The taper only applies when both income tests are met:
taper applies if threshold income > 200,000 AND adjusted income > 260,000
reduction = (adjusted income − 260,000) / 2
allowance = max( 10,000 , 60,000 − reduction ) (if taper applies)
allowance = 60,000 (otherwise)
total room = allowance + carry-forward (last 3 years)
excess = max( 0 , contributions − total room )
The reduction is 1 GBP of allowance for every 2 GBP of adjusted income over 260,000 GBP, and the allowance never falls below the 10,000 GBP floor (reached at 360,000 GBP of adjusted income).
Example
Adjusted income of 300,000 GBP and threshold income of 250,000 GBP triggers the taper: the reduction is (300,000 − 260,000) / 2 = 20,000 GBP, so the allowance is 40,000 GBP. Add 15,000 GBP of carry-forward and your room is 55,000 GBP. Pay in 60,000 GBP and 5,000 GBP is subject to the annual allowance charge.
Notes
This is a planning estimate. The “money purchase annual allowance” (a separate 4,000 GBP limit triggered by flexibly accessing a pension) is not modelled, and defined-benefit accrual uses a different input-amount calculation. Always confirm figures with your scheme administrator or adviser.