Creator income does not climb. It jumps. A back catalogue finds an algorithm, a product launch lands, three brands book the same quarter — and a channel that made £40,000 last year makes £118,000 this one. Everybody's instinct is that the extra money gets taxed at 40%.

It does not. Between £100,000 and £125,140 of income, every extra pound you earn is taxed at an effective 60% — 62% if you are a sole trader, once National Insurance is counted. It is the highest marginal rate in the UK system, it sits above the additional rate, and nothing on your HMRC calculation is labelled to tell you it happened.

Here is the mechanism, the arithmetic on a real spike year at 2026/27 rates, and the one move that reliably takes the sting out of it.

What actually happens at £100,000

The personal allowance — the £12,570 of income you pay no tax on — is not permanent. HMRC reduces it by £1 for every £2 that your adjusted net income goes above £100,000. At £125,140 there is nothing left of it.

Follow one extra pound of income earned at £110,000. You pay 40% on the pound itself: 40p. But that pound also removes 50p of allowance, and 50p that used to be tax-free is now taxed at 40%: another 20p. Total tax on one pound of income: 60p.

A sole trader pays Class 4 National Insurance on top, at 2% on profits above £50,270. So for a self-employed creator, the real marginal rate through that band is 62% — higher than the 47% paid by someone on £200,000.

Marginal tax rate on each slice of a sole trader creator's profit, 2026/27 A bar chart of combined income tax and Class 4 National Insurance on each band of profit: nil to 12,570 is 0%, 12,570 to 50,270 is 26%, 50,270 to 100,000 is 42%, 100,000 to 125,140 is 62%, and above 125,140 it falls back to 47%. 0% 26% 42% 62% 47% Up to £12,570 £12,570 to £50,270 £50,270 to £100,000 £100,000 to £125,140 Over £125,140 Income tax plus Class 4 National Insurance on each slice of profit, 2026/27, England, Wales and Northern Ireland
The bump is the whole story: the band before the top rate is taxed harder than the top rate.

The number that counts is not the number in your bank

The test is adjusted net income, and creators routinely under-estimate their own. It is your total taxable income from everything — before your personal allowance, and before anything you left sitting in a platform balance.

Four things catch people out:

  • Profit, not drawings. A sole trader is taxed on the profit the business made, whether it reached a personal account or not. Leaving £30,000 in the business bank changes nothing.
  • Gifted products at market value. Where you are obliged to post in return, HMRC treats the goods as payment in kind and their value is taxable income — so gifting campaigns push you up the ladder without paying you a penny in cash. Our gifted vs paid brand deals comparison does that maths properly.
  • Everything, added together. AdSense, Twitch, Patreon, affiliate commission, course sales, a rented-out flat, dividends from a company, bank interest. One stream at £70,000 feels safe; four streams at £30,000 each are not.
  • Dollar income at the rate you received it. US platform payments convert into your accounts at the exchange rate on the day — a strong dollar quietly adds to the sterling figure being tested.
The £100,000 line is a tax figure, not a bank figure. If your accounts show £101,000 of profit, you are in the 60% band even if you drew £45,000 and left the rest in the business.

Worked example: a £118,000 spike year

Illustrative channel figures; every rate and threshold is the real 2026/27 one. A full-time creator trades as a sole trader with no employment income, and the accounts show £118,000 of profit after expenses.

  • Personal allowance: £3,570. Income is £18,000 over £100,000, so the allowance drops by half of that — £9,000 — from £12,570.
  • Income tax: £38,232. Taxable income is £114,430. The basic rate band of £37,700 is taxed at 20% (£7,540); the remaining £76,730 at 40% (£30,692).
  • Class 4 National Insurance: £3,616.60. 6% on profits between £12,570 and £50,270 (£2,262), then 2% on the £67,730 above (£1,354.60).
  • Total: £41,848.60.

Now strip the taper out. Had the full £12,570 allowance survived, the income tax would have been £34,632. The lost allowance alone costs £3,600 — a charge that appears nowhere on the calculation as its own line, and which a creator comparing their bill to a 40% mental model will not be able to account for.

Worth pairing this with the other shock that lands the same January: payments on account add half the year's liability again on 31 January and again on 31 July. On these figures that is another £20,924 on account across the year. The payments on account explainer walks through the timing.

The lever that works: a pension contribution

Adjusted net income is measured after deducting the grossed-up value of personal pension contributions and Gift Aid donations. That is the whole opportunity: you can move your own income back below £100,000 and buy the allowance back.

Same creator. They pay £14,400 into a personal pension. Under relief at source the provider reclaims basic-rate tax and adds £3,600, so £18,000 lands in the pension. Adjusted net income falls to exactly £100,000 and the full £12,570 allowance is restored. The basic rate band also stretches by the £18,000 gross contribution, to £55,700.

  • New income tax: £31,032. £55,700 at 20% (£11,140), then £49,730 at 40% (£19,892).
  • Income tax saved: £7,200.
  • Cost to the creator: £7,200. They put in £14,400 and get £7,200 back through Self Assessment.

So £18,000 of pension for a net £7,200. Nothing else in the UK tax system pays like that, and it is available only because the band is punitive in the first place. Two honest caveats: Class 4 National Insurance is charged on trading profit and a pension contribution does not reduce it, so the £3,616.60 is unchanged; and the money is locked up until pension age. This is a redirection of income, not a discount. The annual allowance for pension contributions is £60,000, and relief is capped at 100% of your earnings — neither binds at these numbers. Our post on pensions and protection for creators covers the practical setup.

Gift Aid works the same way: donate £1,000 to a UK charity under Gift Aid and £1,250 comes off your adjusted net income. Useful if you were giving anyway, and worth timing into the spike year rather than the quiet one.

What about incorporating?

A spike year is the one scenario where a limited company genuinely helps — not because the rates are better, but because a company lets you choose which tax year the money reaches you. Profit can sit in the company and be drawn as dividends across two years, keeping both years under £100,000. Dividends carry their own cost, mind: for 2026/27 the ordinary rate is 10.75% and the upper rate 35.75%, with only a £500 dividend allowance.

The positioning we take everywhere on this site holds. At typical creator profits the sole trader versus limited company decision is close to a wash, and incorporating is not an automatic saving — see sole trader vs limited company for creators. And the timing advantage only exists if the company was already in place when the income arrived. You cannot retro-fit it in January to fix a year that has already happened.

The other cliff, lower down

If you have children, there is a second one to watch at £60,000. The High Income Child Benefit Charge claws back 1% of your Child Benefit for every £200 of adjusted net income above £60,000, so it is fully repaid at £80,000. It uses the same adjusted net income figure, which means the same pension and Gift Aid lever works there too — and it bites at a profit level far more creators reach.

What to do this week

  1. Forecast the year, not the month. Add up what the business has actually earned since 6 April, plus what is contracted for the rest of the year. That total is what is being tested — not your drawings.
  2. Add the non-cash income. Market value of gifted products you were obliged to post about, affiliate commission still sitting with a network, platform balances not yet withdrawn.
  3. Check the gap. If the forecast lands between £100,000 and £125,140, work out the excess. That excess is the size of the pension contribution that clears the band completely.
  4. Act before 5 April, not after. Pension contributions and Gift Aid have to be made inside the tax year to count against it. The January deadline is for filing, not for fixing.
  5. Model it before committing. Run the numbers through our free creator tax calculator and read the creator tax guide for the rest of the picture.

One note for Scotland: the personal allowance and its taper are set UK-wide and apply to you identically, but Scottish income tax rates and bands differ, so the exact marginal figure through the band is not 60%. The trap is the same shape; the number moves.

A spike year is a good problem. It just needs handling inside the tax year that created it, which is exactly when creators are busiest and least likely to be looking at it. If your income is heading for six figures, talk to us before April rather than after — fixed fees are on the pricing page.