All calculators

172 free UK tax calculators across 9 categories. Every one shows the tax year it used and the rules it applied.

Showing 1–24 of 172

APR CalculatorUse our free APR Calculator to get an instant estimate.
Annuity CalculatorUse our free Annuity Calculator to get an instant estimate.
Bank Statement Converter (PDF to Excel)A bank statement converter turns a PDF bank statement into a clean spreadsheet of transactions - date, description, money in, money out and balance - that you can sort, total and import into your bookkeeping. Instead of retyping months of entries by hand, you upload the PDF and get a CSV or Excel file back in seconds. It is built for UK sole traders, landlords, contractors and small limited companies who need their bank data in a usable format for Self Assessment, VAT returns or Making Tax Digital - free, with no account to set up.
Bonus Tax CalculatorUse the bonus tax calculator above to see how much of your bonus you actually keep after income tax and National Insurance, and how it stacks on top of your salary.
Break Even CalculatorThis break even calculator tells you exactly how many units you need to sell, or how much revenue you need to take, before your business stops losing money and starts making a profit. Enter your fixed costs, your selling price and the variable cost of making each sale, and you get your break-even point in seconds. It is built for UK sole traders, freelancers and small limited companies pricing a product or service, planning a launch, or sense-checking whether a new line will ever pay its way.
Bridging Loan CalculatorUse our free Bridging Loan Calculator to get an instant estimate.
Bring-Home Income CalculatorOur bring home income calculator shows in plain English how much of your salary you actually keep once the deductions are done. See how much income you actually bring home after tax and National Insurance - the spendable figure for your household budget - on 2026/27 UK rates. Just enter your gross pay and we will work out your monthly and yearly take-home figure, so you know what really lands in your bank account before you plan your budget.
Bring-Home Pay CalculatorOur bring home pay calculator shows the money you actually keep each payday in plain English, so there are no surprises when your wages land. Work out the pay you bring home after income tax and National Insurance, shown per week, month and year, using official UK 2026/27 rates. Just enter your gross salary and we will break down the deductions for you, making it easy to budget and see exactly where your money goes before it reaches your bank account.
Business & Agricultural Property Relief CalculatorFrom April 2026 , Business Property Relief and Agricultural Property Relief are capped: 100% relief on a combined £1 million of qualifying assets, then only 50% relief above - an effective 20% Inheritance Tax rate. Estimate the new bill.
Buy to Let Mortgage CalculatorA buy to let mortgage calculator tells you how much lenders will let you borrow for a rental property, based on the rental income it's expected to generate. Unlike a residential mortgage, which lenders size around your salary, a BTL mortgage is constrained by the rent you'll collect - lenders apply a 'stress test' to ensure the rental income comfortably covers the loan repayment, even if interest rates rise. Use the calculator above to enter your deposit, the property price, and the annual rent you expect. The tool will show you the maximum loan amount, your rental-income coverage ratio, and whether you meet the typical lender's stress-test threshold. This article explains how that maths works, what lenders actually look for, and the tax and stamp-duty bills you'll face.
CIS Tax CalculatorUse our free CIS Tax Calculator to get an instant estimate for the 2026/27 tax year.
Capital Allowances CalculatorUse our free Capital Allowances Calculator to get an instant estimate for the 2026/27 tax year.
Capital Gains Tax CalculatorThis capital gains tax calculator works out what you owe HMRC when you sell or give away an asset that has risen in value during the 2026/27 tax year. Enter your gain, your other income and any costs, and it applies the £3,000 annual exempt amount and the 18% and 24% rates to estimate your bill in seconds. It is built for anyone selling shares, a second property, a buy-to-let, units in a fund, crypto or other chargeable assets, and it shows you the maths so you can see exactly how the figure is reached.
Capital Gains Tax on Property CalculatorThis capital gains tax on property calculator estimates what you'll owe HMRC when you sell a second home, a buy-to-let or any residential property that isn't your main home, for the 2026/27 tax year. Selling property you've held for years can mean a large gain on paper and a tax bill that catches people off guard, so it pays to see the figure before you complete. Enter your purchase price, sale price, costs and income, and you'll get an estimate of the CGT due at the 18% and 24% residential rates. It's built for landlords, second-home owners and anyone disposing of a property that doesn't qualify for full Private Residence Relief.
Car Finance CalculatorThis car finance calculator turns a car's price, your deposit and the APR into the numbers that actually matter: the monthly payment, the total interest, and how much you'll have repaid by the end of the deal. It works for both PCP and HP agreements, so you can see the real cost before you sit in a dealer's office. It's built for anyone weighing up a new or used car in the UK - first-time buyers, families upgrading, and people deciding whether finance or a personal loan makes more sense. Adjust the figures to compare deals and understand exactly what you'll pay each month.
Car Tax CalculatorUse our free Car Tax Calculator to get an instant estimate for the 2026/27 tax year.
Cash Flow ForecastThis cash flow forecast calculator projects your business bank balance month by month, so you can see exactly when money gets tight before it actually does. You enter your opening balance, the cash you expect in, and the cash you expect out, and it rolls the closing balance forward across the year. It is built for UK sole traders, freelancers and small limited companies who want a simple 12 month cash flow forecast without wrestling with a spreadsheet. Profit on paper means little if the bank runs dry in month four. This tool shows you the months to plan for.
Check If HMRC Owes You MoneyIf you want to check if HMRC owes you money, this free tool gives you a quick, plain-English estimate of whether you have overpaid tax and could be due a refund for the 2026/27 tax year. Millions of people in the UK quietly overpay every year through emergency tax codes, mid-year job changes, unclaimed work expenses and unused allowances, and never claim it back. Enter a few figures above and you will see roughly how much you might be owed and where to look next. It is built for employees, pensioners, students and anyone who has changed jobs or stopped working part-way through the year.
Child Benefit Tax CalculatorUse our free Child Benefit Tax Calculator to get an instant estimate for the 2026/27 tax year.
Company Car Tax CalculatorThis company car tax calculator works out the Benefit-in-Kind (BIK) you pay on a car your employer provides, for the 2026/27 tax year. Tell it the car's P11D value and its appropriate percentage and you'll see the taxable benefit, the income tax due, and roughly what it costs you each month. It's built for employees offered a company car or weighing one up against a cash allowance, and for company directors deciding what to put through the business. The numbers below explain exactly how the figure is reached, so you're not taking the result on trust.
Compare Tax Years CalculatorThe same salary does not always leave you with the same take-home pay. As the government changes Income Tax bands and National Insurance rates - or freezes thresholds while wages rise - the amount that reaches your bank account shifts from one tax year to the next. This compare tax years calculator puts two tax years side by side for an identical salary so you can see the difference in pounds. It uses the same verified figures as our salary calculator for each year, so the numbers line up exactly with the rest of the site.
Compound Interest CalculatorThis compound interest calculator shows how your money can grow when the interest you earn starts earning interest of its own. Enter a starting balance, a regular monthly deposit, an annual interest rate and the number of years, and you will see the projected balance and how much of it is growth rather than your own contributions. It is built for anyone planning ahead in the UK: savers building an emergency fund, parents saving for a child, or investors testing how a long-term pot might develop. It is a forecasting tool, not a tax calculator, so the figures depend entirely on the rate and deposits you choose.
Contractor CalculatorUse our free Contractor Calculator to get an instant estimate for the 2026/27 tax year.
Contractor Day Rate CalculatorUse our free Contractor Day Rate Calculator to get an instant estimate for the 2026/27 tax year.

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Software that files it for you

Partner links

If you keep your own books, these are the packages that handle Self Assessment and Making Tax Digital.

FreeAgent

4.8

Free optionMTD ready

The freelancer and contractor favourite, free with some bank accounts.

Free forever with a NatWest, Royal Bank of Scotland, Ulster or Mettle business account
Built-in Self Assessment and MTD for Income Tax filing

From £0 with a NatWest, RBS or Mettle account, otherwise about £19/mo

See FreeAgent

QuickBooks

4.6

MTD ready

The big all-rounder with the deepest MTD track record.

Sole Trader plan built specifically for Self Assessment and MTD
Snap and store receipts, automatic bank feeds

From about £10/mo, frequent 90% off intro offers

See QuickBooks

Xero

4.5

MTD ready

The scale-up choice once you have staff, stock or VAT.

Huge app marketplace and the accountant industry standard
Strong for VAT, payroll and multi-user limited companies

From about £15/mo

See Xero

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