2026/27 rates, checked and dated
Tax calculators that
show their working.
Free tools for VAT, the Construction Industry Scheme and limited company tax. No signup and no email wall. Every rate carries the date it was last checked against HMRC, including the four that changed this year.
A subcontractor invoices £2,500.00: £2,000.00 labour, £500.00 materials, at 20%. What should the contractor hold back?
CIS comes off labour only. Materials, plant hire and VAT all come out first. That is £100.00 on one invoice, on every job involving materials. Why
2026/27 changes
Four rates moved. Most calculators still use the old ones. #
Rates change, and a page written two years ago quietly keeps giving the old answer. These are the ones that matter this year. Every tool here already uses them.
How it works
Three steps, no account #
STEP 01
Pick the tool
Twenty-six of them, each built for one question. No dashboard to learn and nothing to set up first.
STEP 02
Enter your figures
They stay in your browser. Nothing is sent anywhere, stored, or held behind an email form.
STEP 03
See the working
Not just an answer. Every step, the rate used, the tax year, and a link to the HMRC page it came from.
The tools
Twenty-six calculators, all free #
VAT · CIS · Corporation TaxWork out the deduction on a construction payment at 0%, 20% or 30%.
Splits labour from materials, which is where the others go wrongEstimate the tax refund you are owed after a year of CIS deductions.
No email wall before you see the numberTwenty health and safety questions, marked at the real 90% pass mark.
Every answer explained and sourced to HSE guidanceFind out whether you have crossed £90,000 and when your deadline falls.
Tests a rolling 12 months, not your accounting yearCompany profit in, Corporation Tax out, with marginal relief shown.
Handles associated companies, which is where others go wrongLimited company tax calculator
Turnover in. Corporation Tax, National Insurance and take-home out.
One calculation from turnover all the way to your pocketWhat an overdrawn loan account costs in s455 and benefit in kind.
Shows both charges, not just the s455 oneLimited company stamp duty calculator
Stamp duty on property bought through a company, and the relief that avoids 17%.
The relief is worth tens of thousands and is rarely explainedSole trader vs limited company
The same profit run both ways, at the rates that changed in April 2026.
The answer is not what it was a year agoEnter your company profit and find the split that leaves you the most.
Works out the split for you instead of asking for itDividend tax for 2026/27, with your take-home after it.
Uses the rates that rose on 6 April 2026Inside vs outside IR35 calculator
Take home from a day rate three ways: outside IR35, inside it, or through an umbrella.
Asks whether your rate includes employer costs, which is worth 15%What an umbrella really keeps, separated from the employer costs that are not fees.
Most of the deductions go to HMRC, not the umbrellaBenefit in kind on a company car, and the Class 1A your employer pays.
Uses the 4% electric rate, not the 2% everyone still quotesThe flat van benefit charge, and what a double cab pickup costs as a car.
Shows both pickup treatments side by side, including the transitional ruleRateable value in, annual bill out, with small business rate relief applied.
Uses the 2026 revaluation multipliers, including the new retail onesWhat sacrificing pay saves you, and what an electric car costs after the benefit in kind.
Charges the car benefit too, which pension-only calculators ignoreEvery reportable benefit together, with the employee tax and the employer Class 1A.
Shows the Class 1A half that most P11D calculators leave outApproved mileage at the new 55p rate, and the relief if you are paid less.
Uses the 55p rate that replaced 45p in April 2026Workplace pension contributions on qualifying earnings, not on the whole salary.
Shows why 8% of pay is not what goes inSSP under the rules rewritten on 6 April 2026: day one, no earnings limit.
Most SSP guidance online still describes the old schemeStatutory maternity pay calculator
All 39 weeks, plus what the employer reclaims at 92% or 109%.
A small employer reclaims more than they pay outStatutory entitlement and what it pays, for fixed days or irregular hours.
12.07% is the same 5.6 weeks, not a lesser entitlementStatutory redundancy pay by age band, at the £751 weekly cap.
Bands each year of service by the age you were during itA compliant UK invoice or proforma, with the fields HMRC requires.
Adds the reverse charge wording when it appliesLate payment interest calculator
Statutory interest and compensation on an invoice a customer has not paid.
A right in law, whether or not your terms mention itReading
Or work out what applies to you first #
38 guides across VAT, CIS, Corporation Tax and running a limited company. Each dated, sourced, and written to answer the question rather than to fill a page.
When you must register, and what to invoice in the weeks before your VAT number arrives.
Why subcontractors overpay, and how to get it back without handing an agent 30%.
Why £12,570 is usually the answer, and the two cases where it stops being right.
Why trust it
Sourced and dated
Every rate links to the HMRC page it came from and shows when it was last checked, so you can judge whether it is still current instead of assuming.
Nothing is collected
The calculators run in your browser. What you type is never stored, never sent anywhere, and never sits behind an email form.
Corrections in public
When something here is wrong it gets fixed and logged on the corrections page rather than quietly edited away.
General information and calculation tools, not tax advice for your circumstances. For advice on your own situation speak to a qualified accountant or contact HMRC.