This is the interactive companion to a longer guide
What fiscal drag actually is, and why teachers feel it particularly sharply
Fiscal drag is what happens when tax thresholds stay still while pay moves. Nothing is added to your tax bill directly, no rate goes up, and no measure appears on your payslip with a name attached to it. The Personal Allowance simply stops being uprated, the higher rate threshold stops being uprated, and every pay award you receive pushes a slightly larger share of your income into a band that is taxed more heavily than the band below it. In a normal year section 57 of the Income Tax Act 2007 would uprate both figures in line with CPI. Freezing them means disapplying that indexation, year after year.
Teachers experience this more sharply than most employees for two structural reasons, neither of which appears in general personal finance coverage. The first is that teacher pay is set nationally and rises in known, dated steps: a confirmed 3.5% from September 2026 and a confirmed 3% from September 2027, on top of scale progression for anyone not yet at the top of their range. Where a private sector employee might have a pay freeze in a bad year, the STPCD structure means teacher pay reliably moves against a threshold that reliably does not. The second is the Teachers' Pension Scheme contribution structure, which sits between your salary and your tax band in a way that helps you in one respect and hurts you in another — and which this calculator models explicitly rather than glossing over.
5 April 2031
The date the Personal Allowance and £50,270 higher rate threshold are frozen until
Why your tax band is not set by your salary
This is the single most important thing the calculator does that a generic take-home pay tool does not. The Teachers' Pension Scheme operates a net pay arrangement: your member contribution is taken out of your pensionable pay before income tax is worked out. So the figure that decides which income tax band you are in is not the salary on your contract — it is your salary minus your pension contribution. Every teacher is therefore meaningfully further from the £50,270 threshold than their payslip's gross figure implies, and a great many teachers who believe themselves to be higher-rate taxpayers are not.
The contribution is tiered, on the bands in force from 1 April 2026: 7.4% up to £36,198.99, 8.9% to £48,727.99, 9.9% to £57,776.99, 10.5% to £76,572.99, 11.6% to £104,413.99 and 12% above. Critically, the rate applies to your whole salary rather than just the slice above each boundary. Putting those two facts together gives the table this calculator is built around — what each England scale point actually produces as taxable pay in 2026/27, and how much headroom is left before the frozen threshold bites.
| Scale point | Gross salary | TPS tier | Taxable pay | Headroom to £50,270 |
|---|---|---|---|---|
| M1 (ECT) | £34,069 | 7.4% | £31,548 | £18,722 |
| M2 | £36,042 | 7.4% | £33,375 | £16,895 |
| M3 | £38,400 | 8.9% | £34,982 | £15,288 |
| M4 | £40,941 | 8.9% | £37,297 | £12,973 |
| M5 | £43,529 | 8.9% | £39,655 | £10,615 |
| M6 | £46,940 | 8.9% | £42,762 | £7,508 |
| U1 | £49,134 | 9.9% | £44,270 | £6,000 |
| U2 | £50,956 | 9.9% | £45,911 | £4,359 |
| U3 | £52,835 | 9.9% | £47,604 | £2,666 |
No point on either range crosses the threshold in 2026/27. Even U3, the top of the upper pay range at £52,835, produces taxable pay of about £47,604 and sits roughly £2,666 clear. But look at how thin the margin has become at the top of the scale, and then consider that a single TLR2 at its statutory minimum of £3,651 wipes out the headroom at U1, U2 and U3 immediately. That is why the calculator has a TLR field: for a large number of experienced teachers, the allowance is the thing that moves them across the line, not the pay award.
~£55,790
Gross pensionable salary at which a TPS member's taxable pay first crosses £50,270
The number to look at: what share of your rise actually reaches you
Most pay coverage stops at the headline percentage. A 3% award is reported as a 3% award, and the implication is that your standard of living improves by 3%. It does not, and the gap is far wider than most teachers expect — which is why the calculator leads with the share of each year's gross rise that survives into take-home pay rather than with the salary figure.
Take the case the accompanying guide works through in detail: a teacher at U3 in the rest of England holding a TLR2 at its statutory minimum. Their gross pay in 2026/27 is £56,486, which after a 9.9% pension contribution leaves taxable pay of about £50,894 — already £624 into the 40% band. The confirmed 3% award from September 2027 lifts gross pay to £58,181, a rise of £1,695. Of that rise, about £517 goes in extra pension contribution (the increase also crosses the £57,776.99 boundary into the 10.5% tier, which reprices the entire salary rather than just the increase), about £471 goes in income tax entirely at 40%, and about £34 in National Insurance. What reaches take-home pay is roughly £673.
39.7%
Share of the confirmed 3% award reaching take-home pay for a U3 teacher with a minimum TLR2
A 3% headline award delivering a 1.7% increase in take-home pay is the practical face of fiscal drag, and it is not an anomaly produced by an unusual salary — put any upper pay range point plus an allowance into the calculator and you will see a version of it. The share is not always this low: a teacher whose gross pay sits between the NI Upper Earnings Limit and the point where taxable pay crosses £50,270 occupies a narrow window where marginal National Insurance has dropped to 2% but income tax is still 20%, and can briefly keep more than 70% of a rise. The freeze is closing that window.
The pension contribution is not simply lost
It is worth being fair to the biggest single deduction in most of these examples. Where a rise crosses a contribution tier boundary, the extra pension contribution is usually the largest component of what does not reach your pocket — £783 of the £3,054 rise in the M1-to-M2 example, more than the income tax and National Insurance on it combined. That money is deferred pay rather than tax. It buys additional career average pension at 1/57th accrual, alongside an employer contribution of 28.68% of your full pensionable salary, and it is the reason a Teachers' Pension is worth what it is worth.
The honest framing is that the calculator's "share reaching take-home pay" figure measures your immediate spending power, not your total remuneration. If what you want to know is whether a pay award leaves you better off in cash this month, it is the right number. If you are weighing up the overall value of a role, it understates things, and the pension side is worth modelling separately — which is what the Teachers' Pension calculator is for.
The year you become a 40% taxpayer
The second headline the calculator produces is the year, if any, in which your taxable pay first crosses £50,270. For a teacher already at the top of the upper pay range with no allowance, on the confirmed award for 2027/28 and a 3% assumption thereafter, that year is 2028/29 — and the amount involved is trivially small at first. Roughly £233 of income taxed at 40% rather than 20% costs about £47 in extra tax. What matters is not the first year's amount but the fact that a threshold crossed while it is frozen is never re-crossed, and the amount above it compounds with every subsequent award.
Be careful about how much weight you put on the specific year. The crossing depends on an award assumption you chose, and the calculator labels those rows as yours for exactly that reason. What is not an assumption is the direction of travel or the threshold itself: £50,270 is fixed by legislation through 5 April 2031, so for a teacher at the top of the scale the question is which year the crossing lands in, not whether it happens. Any award averaging much above 1.4% a year from 2028/29 gets a U3 teacher there before the freeze ends.
The Institute for Fiscal Studies put a number on the wider picture in A deepening freeze (IFS Report R257, May 2023), projecting that by 2027/28 "one in four teachers are set to be higher-rate taxpayers", against about 5–6% of teachers in the early 1990s. That projection was made when the freeze was still due to end in 2028; the November 2025 Budget added three more years, so it reads as a floor rather than a ceiling.
What this calculator assumes — and what it deliberately refuses to assume
A projection tool is only as honest as its assumption list, so here is the complete one.
- Confirmed and used as fact: the £12,570 Personal Allowance and £50,270 higher rate threshold frozen to 5 April 2031; the 3.5% STPCD award from 1 September 2026, which is already inside the scale point figures; and the 3% award from 1 September 2027, accepted in full on 1 July 2026.
- Never assumed on your behalf: any pay award from September 2028 onwards. The STRB's indicative 3% for 2028/29 was not accepted by the government, so the calculator shows only the two confirmed years until you actively choose a rate, and marks every projected row as your assumption rather than a forecast.
- Never assumed on your behalf: scale progression. The option to move up one point each September is switched off by default, because progression requires a successful appraisal and is not automatic — and the calculator will not move you from the main range onto the upper range at all, since that needs a separate threshold application.
- A stated simplification: Teachers' Pension contribution tier boundaries are held at their April 2026 values in every year, even though in reality they are uprated each April by the Pensions Increase. This matches the tables in the accompanying Budget guide. Modelling the uprating would mean inventing a CPI path for the next five years.
- A stated simplification: figures are annualised salary rates, not the blended five-months-old-rate, seven-months-new-rate figure your actual tax year contains. The annualised rate is the correct basis for comparing a scale point against the threshold and for assessing pension contribution tiers, but it will not reconcile to a payslip to the penny.
- Scope: England pay scales, England income tax bands and England & Wales TPS contribution tiers, with no student loan repayment. Scotland's income tax bands are devolved and set annually; Northern Ireland has its own pension scheme contribution rates. Neither is projected here.
An assumption you choose is still an assumption
How to use the result
Three practical things follow from a projection like this, and none of them involve reacting to Budget speculation.
First, check whether you are actually a higher-rate taxpayer, because a surprising number of teachers get this wrong in both directions. The figure that matters is taxable pay after the pension deduction, which the calculator shows you directly. It affects the rate at which you claim tax relief on union and professional body subscriptions, whether the High Income Child Benefit Charge is in play, and how you should be thinking about any additional pension contributions.
Second, if the projection shows you crossing the threshold by a few hundred pounds, that is the specific situation in which the scheme's own additional pension, faster accrual and buy-out options are worth looking at — they are deducted under the same regulations as your standard contribution, so they reduce the taxable pay figure that sets your band. That is a decision to take with a qualified adviser, not from a calculator, but this is the calculation that tells you whether the question is even live for you.
Third, if you are weighing up a TLR or a promotion, run it here before you accept it. The calculator's TLR field exists because an allowance is very often what pushes an experienced teacher across the threshold, and the share of it that reaches your take-home pay can be materially lower than you would guess. The TLR calculator works out the same question for a single year in more detail; this tool shows you what the allowance does to your tax position over the rest of the frozen period.
Rates and accuracy
This is not regulated financial or tax advice
Frequently asked questions
Are the frozen thresholds in this calculator confirmed, or a prediction? +
Confirmed, and legislated. HMRC's policy paper published alongside the Budget of 26 November 2025 is titled "Maintaining Income Tax and equivalent National Insurance contributions thresholds until 5 April 2031". It holds the Personal Allowance at £12,570 and the basic rate limit at £37,700 — and therefore the higher rate threshold at £50,270 — through 2028/29, 2029/30 and 2030/31, on top of the freeze that has already run since April 2022. The same paper freezes the National Insurance Primary Threshold and Upper Earnings Limit at the same figures over the same period. Every row of the projection uses those confirmed figures; the only thing you are choosing is what happens to your pay.
Which pay awards in this tool are confirmed and which are my assumption? +
Two are confirmed and everything else is yours. The 3.5% award from 1 September 2026 is already inside the scale point figures the calculator starts from — the government accepted the STRB's 36th Report recommendations in full on 1 July 2026, so the 2026/27 STPCD values are post-award figures. The further 3% from 1 September 2027 was accepted at the same time and is applied to the 2027/28 row automatically. From 2028/29 onwards nothing has been agreed. The STRB's report contained an indicative 3% for that year, but the government explicitly did not accept it, so the calculator shows no years beyond 2027/28 until you actively pick an assumption, and labels every row that uses one.
Why does the calculator say I am further from the 40% band than my salary suggests? +
Because the Teachers' Pension Scheme runs a net pay arrangement: your member contribution is deducted from pay before income tax is calculated, so the number that decides your band is your salary minus your pension contribution, not your headline salary. On the contribution tiers in force from 1 April 2026 a teacher in the 9.9% band keeps 90.1% of gross as taxable pay, which means it takes roughly £55,790 of gross pensionable salary before any income is taxed at 40% at all. Anyone telling teachers that 40% tax starts at £50,270 of salary is about £5,500 out.
Why does the calculator hold the pension contribution tiers still when it admits they move? +
Deliberately, and for consistency rather than because it is exactly right. Teachers' Pension contribution tier boundaries are uprated each April by the Pensions Increase — 3.8% in April 2026 — even though the income tax thresholds are frozen. Future Pensions Increase figures depend on future CPI, which nobody knows, so modelling them would mean layering an invented inflation assumption on top of your pay assumption. The calculator therefore holds the April 2026 boundaries static in every year, which is the same simplification the Autumn Budget 2026 guide's own tables make. The practical effect is that in later years the tool may show you one tier higher than you would really be, which slightly overstates your pension deduction and slightly understates your taxable pay — so if anything it shows the 40% crossing arriving marginally later than it otherwise would.
Why do the figures not match my payslip exactly? +
Because STPCD awards land on 1 September and the tax year starts on 6 April, so your real pay in any tax year is a blend of five months at the old rate and seven at the new one. A U3 teacher's 2027/28 blended figure is about £53,760 rather than the £54,420 annualised rate. The calculator uses the annualised salary rate throughout, which is the right basis for seeing where a scale point sits against the frozen threshold and is also the basis on which pension contribution tiers are assessed — but it is why the pounds and pence will not reconcile against a single month's payslip.
Does this work for Scotland or Northern Ireland? +
No, and it does not pretend to. The threshold freeze is a UK government measure that applies to the rest-of-UK income tax bands. Scottish income tax is devolved, with six bands of its own and a higher rate threshold of £43,662 in 2026/27, set annually by the Scottish Parliament — a projection through to 2031 would require assumptions about future Scottish Budgets that nobody can make honestly. Northern Ireland shares the rest-of-UK income tax bands but its teachers are in the NITPS, which has its own contribution rates. This calculator models England income tax bands and England & Wales TPS contribution tiers only. For a current-year take-home figure in any UK nation, use the take-home pay calculator instead.
Is there anything I can actually do about fiscal drag? +
Very little of it is within any individual's control, which is worth saying plainly. The one lever the scheme itself gives you is that additional pension purchase, faster accrual and buy-out contributions are deducted under the same scheme regulations as your standard contribution, so they reduce the taxable pay figure that sets your band. For a teacher whose taxable pay sits a few hundred pounds over £50,270, that can pull the top slice back under the threshold with relief at 40% on the part that was being taxed at 40%. You are converting take-home pay into deferred pay rather than creating money, and whether it makes sense depends on your age, your other savings and your annual allowance headroom — which is a conversation for a qualified adviser, not a rule of thumb. The other genuinely useful step is making sure you are claiming the reliefs you are already entitled to at the right rate, because union subscription relief is worth twice as much once you are a higher-rate taxpayer.
Related guides
Autumn Budget 2026, Teacher Tax and Take-Home Pay
The full guide this calculator is built from — what the freeze is, who confirmed it, and the sourced worked examples behind every figure here.
Teacher Take-Home Pay Calculator
Your current-year net pay across all four UK nations, including student loan repayments.
TLR Calculator
What you actually keep from a TLR1, TLR2 or TLR3 once tax, NI and pension contributions are taken.
Teacher Pay Point & Progression Calculator
Which scale point you would be on with uninterrupted progression, and how UPR or TLR scenarios compare over a decade.