Assumptions used here
| Tax/source year | 2026/27 |
|---|---|
| Region | England/Wales/Northern Ireland |
| Tax code basis | 1257L |
| Pension basis | No pension deduction unless this example says otherwise |
| Student loan basis | No student loan unless selected in this example |
Personal Allowance taper tax-trap calculator
How income above £100,000 can reduce the UK Personal Allowance, including take-home pay, pension salary-sacrifice modelling, tax, NI and student loans.
What £110,000 actually leaves you with
Use this tax-trap calculator to model the Personal Allowance taper around £100,000. It estimates adjusted net income, allowance lost, take-home pay, tax, NI, and a current-year pension salary-sacrifice comparison where the shared guardrails support it.
Move a salary through the taper
Between the threshold and the point the allowance runs out, each extra pound is taxed at the higher rate and costs 50p of allowance, which is taxed too.
Take-home a year£72,357
- Gross
- £110,000
- Income Tax
- £33,432
- National Insurance
- £4,211
- Take-home a month
- £6,030
Of £110,000.00 gross a year: Income Tax £33,432.00, National Insurance £4,210.60, Take-home £72,357.40.
The share of each extra pound taken in Income Tax, National Insurance and student loan peaks at 62% around £100,738. At £110,000, 62% of the next £100 is taken. The peak is where the Personal Allowance is withdrawn, between £100,000 and £125,140: every £2 earned there removes £1 of allowance, so the band rate understates what is actually taken.
Saving £300 a month — about 5% of this take-home — becomes £19,853.71 in five years at an example 4%: try the savings calculator.
2026/27 rates, England, Wales and Northern Ireland, no student loan. Open the full calculator to change region, student loan or pension method.
Payslip showing different figures? The payslip checker works out what your pay and tax code should have produced and shows which assumption could explain the gap.
Personal Allowance taper example
This is a planning estimate only. It is not tax, payroll, pension, financial, legal or accounting advice.
Adjusted net income£110,000
Personal Allowance lost£5,000
Remaining Personal Allowance£7,570
Take-home / month£6,030
| Taper status | Inside the taper zone |
|---|---|
| Gross income above £100,000 | £10,000 |
| Adjusted income above target | £10,000 |
| Income Tax / year | £33,432 |
| National Insurance / year | £4,211 |
| Full allowance-loss point | £125,140 |
Pension salary-sacrifice threshold check
| Additional sacrifice to model target / year | £10,000 |
|---|---|
| Additional sacrifice to model target / month | £833 |
| Adjusted income after total sacrifice | £100,000 |
| Take-home change / month | -£317 |
| Minimum-wage guardrail | Clear under default assumptions |
Pension salary sacrifice can reduce taxable pay in this current-year PAYE estimate, but employer scheme rules, minimum-wage checks, statutory-pay effects and payroll treatment must be checked separately.
This estimate is above the selected minimum-wage guardrail using the hours and worker category entered. It is not a legal compliance decision.
The April 2029 pension salary-sacrifice National Insurance cap is not applied to this current-year estimate.
Checks worth making on £110,000
Where pay can go
| Gross pay | Employment pay before PAYE deductions and pension or loan settings. |
|---|---|
| Income Tax | Tax estimated from the selected tax-year, region, tax code and taxable-pay assumptions. |
| National Insurance | Employee NI is calculated separately from Income Tax and may not follow the same bands. |
| Pension and loans | Pension method and student-loan plan can change take-home pay and payslip comparisons. |
What changes this result
| Pension contribution | Changing the rate or method can change taxable income, National Insurance and take-home pay. |
|---|---|
| Tax code and region | Scottish Income Tax, Welsh codes, emergency tax or a non-standard tax code can move the result. |
| Student loan plan | A different plan can change deductions because each plan uses its own threshold and repayment rate. |
| Bonus, overtime or second job | Extra pay and payroll timing can make a real payslip differ from the smooth annual estimate. |
Why a payslip can differ
| Tax code | HMRC tax-code changes, K codes, BR/D codes, or emergency markers can change PAYE deductions. |
|---|---|
| Cumulative basis | Week 1, Month 1 or non-cumulative payroll can differ from a smooth annual calculator estimate. |
| Pension method | Relief at source, net pay and salary sacrifice can affect taxable pay and take-home pay differently. |
| Payroll timing | Bonus, overtime, arrears, refunds, cut-off dates and corrections can all move a single payslip. |
Good next questions
| Why is the tax on my payslip higher than expected? | payslip difference |
|---|---|
| What do the main payslip lines mean? | payslip explainer |
| What tax code should I use for modelling? | tax code |
| How much does pension reduce take-home pay? | pension comparison |
| How does this affect a monthly budget? | budget planning |
Source and methodology context
| What is not decided here | PayBreakdown does not decide payroll correctness, lender approval, benefit entitlement or employer compliance, and does not give regulated financial, mortgage, debt, tax, payroll or legal advice. |
|---|
What the £110,000 estimate assumes
The figures on this page are worked from £110,000, using the values below. Open the calculator if your example salary, region, student loan or tax code differs.
Example salary£110,000 annual gross
RegionEngland
Student loanNo student loan
Tax code1257L
Where each salary sits in the taper
Each row runs the same engine as the calculator above, with no pension contribution, a standard tax code and the England and Northern Ireland bands. Allowance lost, remaining allowance, Income Tax and National Insurance are amounts for the whole tax year; take-home is per month. Adjusted net income is treated as equal to salary here, so a pension, salary sacrifice, benefits or other income will move a real result away from these figures.
| Salary | Personal Allowance lost | Remaining Personal Allowance | Income Tax a year | National Insurance a year | Take-home a month |
|---|---|---|---|---|---|
| £100,000 | £0 | £12,570 | £27,432 | £4,011 | £5,713 |
| £105,000 | £2,500 | £10,070 | £30,432 | £4,111 | £5,871 |
| £110,000 | £5,000 | £7,570 | £33,432 | £4,211 | £6,030 |
| £115,000 | £7,500 | £5,070 | £36,432 | £4,311 | £6,188 |
| £120,000 | £10,000 | £2,570 | £39,432 | £4,411 | £6,346 |
| £125,140 | £12,570 | £0 | £42,516 | £4,513 | £6,509 |
| £130,000 | £12,570 | £0 | £44,703 | £4,611 | £6,724 |
| £150,000 | £12,570 | £0 | £53,703 | £5,011 | £7,607 |
What the taper model checks
The calculator uses the shared PAYE salary engine and tax-year source data to estimate whether adjusted net income is below the taper zone, inside it, or at the point where the standard Personal Allowance has tapered away.
- The estimate shows the Personal Allowance before and after taper, allowance lost, remaining allowance, Income Tax, National Insurance and take-home pay.
- Adjusted net income can include income and deductions outside this page, so the result is a planning estimate rather than a tax return or payroll decision.
Pension salary-sacrifice planning
Where income is above the selected target, the page can model a current-year pension salary-sacrifice amount that would bring adjusted net income down to that target under the current assumptions.
- Salary sacrifice depends on employer scheme rules, payroll timing, statutory-pay effects and minimum-wage checks.
- The April 2029 pension salary-sacrifice National Insurance change is not applied to current-year results.
Curated Personal Allowance taper examples
These examples cover the income range over which the Personal Allowance is withdrawn: from the point the taper starts to the point the allowance has gone entirely.
- Each page shows adjusted net income, allowance lost, take-home pay, Income Tax, National Insurance and source caveats.
- Salary-sacrifice threshold examples are pension-only, current-year only and must pass the default minimum-wage guardrail.
- The April 2029 pension salary-sacrifice NI cap is kept out of current-year calculator output.
What would change this figure
This estimate is worked out on £110,000 annual gross, england, no student loan and 1257L. Change any of those and the take-home figure moves; pension method and student loan plan usually move it most. A payslip can differ from any calculator because payroll works pay period by pay period, so a tax-code change, a bonus, arrears or a refund can land in one month and not the next. See how each deduction is worked out.
The taper and what moves it
Where the 60% zone comes from, and the levers that change adjusted net income.
Official sources
Income Tax rates and Personal AllowancesScottish Income Tax rates and bandsNational Insurance rates and categoriesStudent loan repayment thresholdsPension tax reliefSalary sacrifice for employersFrequently asked questions
What does the GBP 100k tax-trap calculator estimate?
It estimates how the Personal Allowance taper can affect take-home pay when adjusted net income is around or above £100,000, using the selected tax year, region, tax code, pension and student-loan assumptions.
When does the Personal Allowance taper start?
For the current shared tax-year settings, the taper starts when adjusted net income is above £100,000. The standard allowance reduces by GBP 1 for every GBP 2 above that point until it is fully lost.
Can pension salary sacrifice reduce income below £100,000?
A current-year pension salary-sacrifice arrangement can reduce taxable cash pay in this model, but it depends on employer rules and must be checked against minimum-wage, statutory-pay and benefit effects.
Does the calculator apply the April 2029 salary-sacrifice NI change?
No. Current-year tax-trap results do not apply the April 2029 pension salary-sacrifice National Insurance cap. That future rule is kept separate from live-year calculator output.
Is this tax-trap result tax or pension advice?
No. It is a planning estimate only. Tax codes, adjusted net income, payroll treatment, benefits, pension rules, student loans and personal circumstances can change the real result.
Why do the examples only cover a narrow income range?
Because that is the range the taper applies to. Below the threshold the allowance is untouched, and once it has been withdrawn in full there is nothing left to take away, so the effect only exists in between.
Last updated 2026-08-27. Checked by Sean Elsmore. Rates last checked against GOV.UK on 2026-08-07. Estimates are for planning and should be checked against official records where the decision matters.