Gardener on £25,000

Sole Trader. Age 42. Pension preference: none.

Every figure on this page is computed at build time by the same engines that power the live salary–dividend split, take-home and SIPP optimiser calculators. Inputs come from a single CSV row; outputs come from the engines. No static lookup tables, no hand-coded numbers.

Net cash

£20,664

Pension

£0

Effective rate

12.3%

Marginal rate

26%

The tax cliff this scenario is closest to

Before the numbers, a warning: a gardener at £25,000 of turnover for 2026/27 is sitting close to one of the UK tax code's sharpest cliffs.

The £50,270 higher-rate threshold and the £12,570 Personal Allowance are the two boundary numbers a sole trader at this turnover needs to watch. Each £1 of profit above £50,270 attracts the 40% income tax rate plus the 2% Class 4 NI rate — a combined 42% marginal — versus the 28% basic-rate + main-band combination below. Most "should I incorporate?" questions are actually triggered by a sole trader crossing the £50,270 boundary, because the dividend-band machinery starts paying for itself there.

The numbers for this specific scenario

Bottom line for a gardener at £25,000 of turnover: net cash £20,664; pension £0; effective rate on gross 12.3%.

The numbers, line by line

Turnover	£25,000
Taxable profits	£23,750
Trading allowance vs actual expenses	Actual expenses
Income tax	£2,236
Class 4 NI	£671
Class 2 NI (voluntary)	£179
Net cash (year)	£20,664
Net cash (monthly)	£1,722
Hours-equivalent at NLW (£12.21/hr)	1,692 hrs
Effective rate	12.3%
Same turnover as Ltd Co (no pension)	£20,038
Incorporate vs stay sole trader	£626 for staying sole trader

Why this scenario is different

Compared to the closest peer profile — Freelance designer at £25,000 — this scenario sits £0 higher on gross income. That moves net cash by +£0, the pension contribution by +£0, and the effective rate by +0%. The effective rate moves only modestly — both scenarios sit inside the same binding tax band. Taxable profits change from £23,750 to £23,750 (after the trading-allowance / actual-expenses choice).

Questions this scenario raises

How does my PAYE day job interact with this side-hustle income?

For this row there is no separately-stacking PAYE income — the figures above are pure self-employment / contract earnings.

Why is the effective rate lower than the headline tax brackets?

Because the headline 20% / 40% / 45% rates apply only to the income slice in each band — not the whole income. The Personal Allowance shelters the first £12,570 at 0%; the basic-rate band only charges 20% on the next £37,700; and so on. The effective rate on the entire income is the weighted average of every slice — typically much lower than the headline number people quote.

Is the figure on this page net of accountancy fees?

Yes when relevant — the take-home calculator deducts an umbrella fee for inside-IR35 rows (£1,500/yr assumed) and the optimiser allows for an arbitrary annual business expense pot (£3,500/yr default for Ltd Co rows). Sole-trader rows assume the higher of £800/yr or 5% of turnover as actual business expenses, which approximates a low-overhead service business.

What if I have rental income alongside this self-employment?

Add it to the `otherIncome` field of the calculator. Property income is taxed at non-savings, non-dividend rates (so stacks alongside salary in the band schedule). The first £1,000 of rental income can also be sheltered by the separate Property Allowance under FA 2017 s.16.

Do I need to file a Self Assessment for this income?

Yes, if the gross self-employment income is over £1,000 (the threshold above which the trading allowance no longer provides "full relief"). Even below that, you may wish to file voluntarily to claim losses or to maintain a tax-payer record. The deadline is 31 January following the end of the tax year (so 31 January 2028 for 2026/27).

Methodology

Income tax, National Insurance and Corporation Tax bands taken from HMRC's 2026/27 rates and allowances tables (gov.uk/.../income-tax; corporation-tax). Pension Annual Allowance and taper rules from Finance Act 2004 / 2023. Trading allowance per ITTOIA 2005 s.783A. Voluntary Class 2 figure (£179.40/yr = £3.45/wk × 52) from HMRC voluntary NI guidance.

Style: 2026/27 tax year throughout; figures rounded to whole pounds in the user-facing prose; effective rates computed as (deductions / gross). The voice is methodological — no first person, no claimed credentials, no marketing fluff.

This page is not personalised advice; for advice regulated by the FCA, consult an adviser registered with the Financial Conduct Authority. See the full disclaimer.