Nurse on £30,000

Sole Trader. Age 32. Plus £15,000 of other personal income stacking below. Pension preference: modest.

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

£23,312

Pension

£0

Effective rate

17.3%

Marginal rate

26%

Worked example: Nurse, 32, £30,000 of turnover

Picture a nurse aged 32 for the 2026/27 tax year, trading as a sole trader with £30,000 of turnover and a further £15,000 of other personal income stacking below. The optimisation goal for this profile is a balance of cash and pension contribution (modest pension preference, treating £1 of pension as £0.50 of cash for the search).

Running the engine for this exact profile:

Taxable profits after the trading-allowance choice: £28,500
Income tax: £4,053
Class 4 NI: £956
Class 2 (voluntary): £179
Net cash: £23,312 (17.3% effective on turnover)
Same turnover as a Ltd Co (no pension): £20,927 — a gap of £2,385 in favour of staying a sole trader

The vignette is hypothetical but the numbers are not — every figure above was produced by the same engine code that powers the live BracketMath calculators, run at build time on inputs drawn from a single CSV row.

The numbers, line by line

Turnover	£30,000
Taxable profits	£28,500
Trading allowance vs actual expenses	Actual expenses
Income tax	£4,053
Class 4 NI	£956
Class 2 NI (voluntary)	£179
Net cash (year)	£23,312
Net cash (monthly)	£1,943
Hours-equivalent at NLW (£12.21/hr)	1,909 hrs
Effective rate	17.3%
Same turnover as Ltd Co (no pension)	£20,927
Incorporate vs stay sole trader	£2,385 for staying sole trader

Why this scenario is different

Compared to the closest peer profile — Freelance writer at £30,000 — this scenario sits £0 higher on gross income. That moves net cash by −£867, the pension contribution by +£0, and the effective rate by +2.9%. The shift in effective rate is large enough that the binding tax constraint has changed — probably crossing a band boundary. Taxable profits change from £28,500 to £28,500 (after the trading-allowance / actual-expenses choice).

Questions this scenario raises

How does the £1,000 trading allowance interact with rental income?

They are separate allowances. There is a £1,000 trading allowance for trading income and a separate £1,000 property allowance for rental income, both under FA 2017. You can claim both in the same year if you have both income streams.

What happens to my pension at age 55 / 57?

From age 55 (rising to 57 from 6 April 2028 per the Finance Act 2021) you can access defined-contribution pensions. The first 25% of the pot is tax-free (the "Pension Commencement Lump Sum"), subject to the £268,275 Lump Sum Allowance. The remainder is drawable at your marginal income-tax rate — but you can phase it across decumulation years to keep most of it within the 20% basic-rate band.

How many qualifying years do I need for the full new State Pension?

35 qualifying years for the full new State Pension. With fewer, the pension is pro-rated (1/35 per year). A minimum of 10 qualifying years is required for any new State Pension. Voluntary Class 2 (sole traders) or Class 3 (everyone else) can plug gaps in the NI record.

Does it include Scottish income tax?

No. Scotland has its own income-tax band schedule (Starter 19% / Basic 20% / Intermediate 21% / Higher 42% / Advanced 45% / Top 48% for 2026/27). National Insurance and corporation tax are still set at UK-wide rates. A Scotland-specific batch of programmatic pages is planned but is not in this batch.

How does the Pension Annual Allowance taper work?

Above £260,000 of adjusted income, the £60,000 Annual Allowance reduces by £1 for every £2 over the threshold, down to a £10,000 floor at £360,000 of adjusted income. The taper bites later than the £100k Personal Allowance taper but is similarly punitive on pension contributions specifically.

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.