CIS
CIS tax refund estimator
For subcontractors. Estimate your CIS refund or tax bill for 2025/26 or 2026/27, and see which Self Assessment boxes the figures go in.
Estimate my refundCalculators
Free calculators for UK money questions: CIS tax for construction trades, Inheritance Tax, probate and gifts, interest on late invoices, the VAT threshold, window cleaning price rises, stretched funded childcare hours, allotment costs and Christmas collection slots. They run in your browser and nothing you type is sent anywhere.
Each one links to the GOV.UK rules it uses. They give estimates, not tax, legal or financial advice. Check anything that matters with HMRC or a qualified adviser.
CIS
Getting 20% taken off?
Free calculators for UK subcontractors and contractors on the Construction Industry Scheme. Check a deduction, estimate your refund, then grab the free mileage log. No accounts needed.
Estimates, not tax advice.
CIS
CIS deduction calculator
For contractors and subcontractors. Check what should come off an invoice at 20%, 30% or gross: labour only, with materials and VAT left out.
Check a deductionMileage and expenses log Lite
Excel or Google Sheets. Log every site mile and receipt, totals ready for Self Assessment. Free, pay what you like.
Get the free logWant the whole year tracked? Subcontractor tracker £14.99 · Contractor tracker £14.99 · Both plus the Lite: £21.99 (£29.98 bought separately)
LAUNCH25 takes 25% off either tracker until 31 Oct!!
Other calculators
Budget 2026
Budget 2026 pay calculator
See your 2026/27 take home pay now and after the 28 October 2026 Budget, with the difference a year and a month.
Check my pay
HMRC scams
Is this HMRC message real?
For anyone with a text, email, call or letter that says it is from HMRC. Tick what it asks for and get a red, amber or green check from GOV.UK rules.
Check a message
April 2027
State Pension and benefits increase April 2027
See how much your State Pension, PIP, DLA, Attendance Allowance or Carer's Allowance is expected to go up, and whether your pay rise beats inflation.
Check my increase
Child Benefit
High Income Child Benefit Charge calculator
For parents with an HMRC letter. See how much of your Child Benefit you owe back over £60,000, what you keep, and what a pension payment would save.
Work out my charge
Probate
Probate and Inheritance Tax calculator
For England and Wales. Estimate the Inheritance Tax on an estate, with the residence allowance, gifts and the probate fee.
Open calculator
Late payment
Late payment interest calculator
For businesses chasing a late invoice. Work out the statutory interest at 8% plus base rate, and the £40, £70 or £100 compensation.
Open calculator
Inheritance Tax
Gift Inheritance Tax taper checker
For anyone who has given money away. See how far a gift is through the 7 years, its taper rate, and the day it drops out of Inheritance Tax.
Open calculator
VAT
VAT threshold checker
For sole traders and small firms. Enter 12 months of sales and see your rolling total against £90,000, your headroom and any deadline to register.
Open calculatorFor window cleaners and childminders
Estimates, not financial advice.
Window cleaning
Window cleaning price rise calculator
For window cleaners. See the new price, what a rise adds over a year, and how many customers you could lose and still take the same.
Plan a price rise
Childcare
Stretched funded hours calculator
For childminders and parents in England. Stretch 570 or 1,140 funded hours over your open weeks: hours a week, hours to claim and paid hours.
Stretch the hoursFor growers and Christmas orders
Estimates from your own numbers, not financial advice.
Allotment
Did my allotment pay its way?
For allotment holders. Type in what you picked and what you spent, set your own prices, and see if the plot paid its way this season.
Check my season
Christmas orders
Christmas Collection Slot Planner
For butchers, farm shops and bakers. Work out how many Christmas orders you can hand over in each collection slot, day by day.
Plan my slots
Making Tax Digital
Making Tax Digital checker
For sole traders and landlords. See if you need Making Tax Digital for Income Tax from April 2026, 2027 or 2028.
Check if I need it
Take home pay
Take home pay calculator 2026/27
For employees. Income Tax for the UK and Scotland, National Insurance, student loans and your pension, by year, month and week.
Work out my pay
Family business
Family business handover tax comparison
A reported proposal, not law. Compare 24% Capital Gains Tax with 45% Income Tax on the value of a family business handover.
Compare the rates