2026-27 · HMRC-based · Free
Tax calculators
built for solo
directors.
Salary vs dividends, corporation tax, IR35, home office — all the calculations that matter for a one-person limited company, using 2026-27 HMRC rates.
April 2025 employer NI changes apply: rate 15% (was 13.8%), threshold £5,000 (was £9,100). This significantly affects optimal director salary. Read our guide
Every number a solo director
needs to run.
Salary vs Dividend Calculator
Optimal salary/dividend split to legally minimise total tax. Includes employer NI, corp tax, and effective rate.
CalculateCorporation Tax Calculator
Small profits rate, marginal relief, and main rate — with a clear breakdown of what your company owes.
CalculateIR35 Take-Home Calculator
Inside vs outside IR35 net pay comparison. See the exact pound-for-pound impact before accepting a contract.
CalculateHome Office Calculator
HMRC flat rate (£6/week) vs apportioned method. Which saves more in corporation tax relief?
CalculateVAT Flat Rate Scheme
Is the VAT Flat Rate Scheme profitable for your company? Calculate the net benefit by sector rate.
CalculateDividend Tax Calculator
Dividend tax at each rate band — basic, higher, and additional — stacked correctly on top of salary.
CalculateBuilt for one-person
limited companies
Generic tax calculators ignore the specifics of a solo director: the employer NI threshold change, the interplay between salary and dividends, corporation tax marginal relief, and the £100k personal allowance trap.
- Employer NI from £5,000 — April 2025 rates
- Correct marginal relief in the £50k–£250k band
- Dividend tax stacked correctly on top of salary
- Personal allowance taper above £100,000
- No registration, no email, no cost
2026-27 at a glance
Personal Allowance
£12,570
Tapers above £100k
Dividend Allowance
£500
Tax-free dividends
Employer NI Rate
15%
Above £5,000/yr
Corp Tax — Small
19%
Profits ≤ £50k
Corp Tax — Main
25%
Profits ≥ £250k
Employment Allowance
£10,500
Eligible cos. only
Not just calculators — explanations
you can actually understand.
Find out how much you could save.
2-minute salary vs dividend calculation. No login needed.