Tax calculators and planning tools — all free, no signup required, updated for 2026/27 HMRC rates.
Compare a partnership against a limited company — total tax, NI and take-home after corporation tax and dividends, with profit-retained modelling.
Estimate your R&D tax relief under the merged RDEC scheme at 20%, or Enhanced R&D Intensive Support at a 186% deduction and 14.5% payable credit. Includes the 30% intensity test.
See what an angel investor actually gets: 50% SEIS or 30% EIS income tax relief, the SEIS capital gains reinvestment exemption, EIS deferral, share loss relief and the real net downside.
See exactly how much more you keep as a limited company director vs a PAYE employee on the same income. Includes corp tax, dividends, NI and income tax.
Find the crossover point where incorporating saves you money. Compares Class 4 NI, dividend tax and corporation tax against sole trader self-assessment.
Answer 4 quick questions to find out if Making Tax Digital applies to you and when your deadline is.
Work out your monthly burn rate and how many months of runway you have left — and model how new funding or cost changes extend it.
AccTek's free tools are built by qualified UK accountants and updated every tax year to reflect the latest HMRC rates. All calculators use confirmed 2026/27 figures including the April 2026 dividend tax increase (10.75% basic rate, 35.75% higher rate), current National Insurance thresholds, and corporation tax rates with marginal relief.
No email address, no signup, no sales call required. Just enter your numbers and get an instant result.
Our accountants can model your exact situation — salary, dividends, pension, expenses — and set up the right structure for you. From £19.99/month.