Fast, free UK calculators for everyday money decisions
Calculate salary, VAT, mortgage repayments, stamp duty, student loan costs, self-employed tax, savings growth and more with simple tools built around UK rates, thresholds and real-world use cases.
Why people use ukfinancetools.online
Built to make common money calculations quicker, clearer and easier to understand.
Built for the UK
Each calculator is tailored to UK taxes, thresholds, property costs, savings rules and finance decisions.
Fast and simple
Open a tool, enter your numbers and get a clear answer without unnecessary steps.
Useful for real planning
Compare costs, estimate repayments and sense-check your next move before you commit.
Free to use
All tools are available without creating an account, making them easy to revisit whenever you need them.
Featured calculators
Start with the most popular tools for income, home buying, tax and borrowing.
Salary Calculator UK
Estimate your take-home pay after income tax, National Insurance, pension deductions and student loan repayments.
Open calculator →Mortgage Calculator UK
Work out monthly repayments, total interest and the long-term cost of a mortgage.
Open calculator →Stamp Duty Calculator
Estimate SDLT quickly when budgeting for a property purchase in England or Northern Ireland.
Open calculator →VAT Calculator UK
Add or remove VAT in seconds for invoices, pricing checks and day-to-day business admin.
Open calculator →Self-Employed Tax Calculator UK
Estimate sole trader income tax and National Insurance using current UK thresholds.
Open calculator →Student Loan Calculator UK
Compare repayment plans and estimate what you may repay based on your income.
Open calculator →All calculators
Explore the full set of UK money tools for tax, pay, debt, property, investing and business planning.
VAT Calculator UK
Add or remove VAT instantly using standard, reduced or custom rates.
PaySalary Calculator UK
Estimate net pay from gross salary using UK deductions.
PropertyMortgage Calculator UK
See monthly repayments and total mortgage costs.
PropertyStamp Duty Calculator
Estimate SDLT before you buy a property.
BorrowingLoan Repayment Calculator
Work out monthly loan payments and total interest.
RetirementPension Calculator UK
Project pension growth using contributions and investment returns.
TaxTax Refund Calculator UK
Estimate whether you may have overpaid tax through PAYE.
SavingCompound Interest Calculator
See how savings and investments can grow over time.
PlanningInflation Calculator UK
Compare the value of money over time.
BusinessProfit Margin Calculator
Calculate profit, margin and markup for products or services.
IncomeSide Hustle Income Calculator
Estimate extra income after costs and tax.
InvestingCrypto Profit Calculator
Check gains, returns and a simple tax estimate.
SavingSavings Interest Calculator
Estimate how much interest your savings could earn.
DebtCredit Card Payoff Calculator
See how long it could take to clear your balance.
BusinessROI Calculator
Measure return on investment for projects and campaigns.
BusinessBusiness Startup Cost Calculator
Estimate launch costs, monthly burn and runway.
TaxSelf-Employed Tax Calculator UK
Estimate tax and NI for sole traders and freelancers.
TaxDividend Tax Calculator UK
Estimate tax due on dividend income using UK bands.
EducationStudent Loan Calculator UK
Estimate repayments across UK student loan plans.