Senior consultant on £350,000

Personal Ltd Co. Outside IR35. Age 58. Pension preference: aggressive.

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

£151,728

Pension

£60,000

Effective rate

39.5%

Marginal rate

39.4%

Step by step: how the engine arrived at the bottom line

The joint optimiser ran a grid search over (salary, pension) — salary in £100 steps from £0 to £60,000, pension in £500 steps from £0 to the £60,000 Annual Allowance — and evaluated each combination through the full tax stack. Here is the step-by-step trace that produced the optimum for a senior consultant at £350,000 of company profit:

Salary chosen: £5,000. Sits between the £5,000 Secondary Threshold and the £12,570 Personal Allowance (paying employer NI but no income tax).
Employer NI on salary: £0 (15% above the £5,000 Secondary Threshold).
Pension chosen: £60,000 as an employer contribution — CT-deductible, no NI either side, no income tax until drawdown.
Pre-CT profit: £285,000 = company profit minus salary, minus employer NI, minus pension contribution.
Corporation tax: £71,250 (regime: main).
Dividend extraction: all post-CT profit paid out — £213,750.
Personal taxes: employee NI £0 on salary; income tax £1,000 on salary; dividend tax £66,022 on the dividend (after the £500 Dividend Allowance and stacked above salary in the band schedule).
Net cash: £151,728. Net wealth (cash + pension): £211,728.

The numbers, line by line

Optimum salary	£5,000
Optimum dividend	£213,750
Optimum pension	£60,000
Net cash (optimum)	£151,728
Net wealth (cash + pension)	£211,728
Rule-of-thumb net cash	£178,801
Rule-of-thumb net wealth	£178,801
Saving vs rule of thumb	£32,928
Effective rate on profit	39.5%
Marginal rate (next £1 dividend)	39.4%
Years to age-57 pension access	0
Annual pension contribution (this row)	£60,000
Projected pot at 57 (5% real, single-path)	£0
Sustainable income @ 4% SWR	£0/yr

Why this scenario is different

Compared to the closest peer profile — Management consultant at £350,000 — 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. The optimiser shifts £0 of the extraction out of the dividend slice, and £0 out of pension contributions.

Questions this scenario raises

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 State Pension worth deferring?

For State Pensions claimed after 6 April 2016, deferring uplifts the entitlement by 1% for every 9 weeks deferred (about 5.8% per year). The break-even is approximately 17 years — if you expect to live materially longer than 17 years after State Pension Age, deferring marginally wins. Most people claim on time and invest the cash instead.

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.

How do I model my partner's income alongside mine?

BracketMath models a single tax entity — there is no joint-couple calculation. For couples, the practical approach is to run each partner separately and consider income-splitting strategies (employing the lower-earning spouse for genuine work performed, sharing dividends if both are shareholders, etc). The Ltd Co spousal share pattern is sketched in /guides/ltd-company-director-tax.

Why does the optimiser pay a salary above £5,000 if employer NI starts there?

Because beyond the £5,000 Secondary Threshold, each £1 of salary still saves 19–25% of corporation tax and only costs 15% in employer NI plus 8% employee NI — a net 11–17% saving up to the £12,570 Personal Allowance. The 2026/27 optimum for this row is £5,000 of salary, sitting in exactly this regime.

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.