Free Online Tools
From tax calculators to mortgage and savings tools, our free UK financial calculators are designed to give you accurate, easy-to-understand results. Whether you're planning a big purchase, checking your take-home pay, or working out investment growth, you'll find the right tool here.
Take-Home Pay Calculator
Work out your net salary after tax, NI, pension, and student loan deductions.
Compound Interest Calculator
Estimate future investment value with compound interest and monthly contributions.
Savings Goal Calculator
Work out how much you need to save each month to reach your goal, with interest growth included.
Mortgage Calculator
Calculate your monthly mortgage costs or find out how much you can afford to borrow with our simple tool.
Mortgage Overpayment Calculator
See how monthly and annual overpayments can reduce your mortgage term and save thousands in interest.
Stamp Duty Calculator
Check how much SDLT you’ll pay when buying property as a first-time buyer, moving home, second home, or non-UK resident.
Premium Bond Calculator
Estimate your expected prize winnings based on how many Premium Bonds you hold and for how long.
Emergency Fund Goal Calculator
Work out how much you need to set aside to cover 3–12 months of essential living expenses.
Investment Risk Profile
Find out whether you're a cautious saver, balanced investor, or growth-seeking risk taker based on your personality and goals.
Are You Ready to Buy a House?
Take this short quiz to assess your financial readiness for homeownership in the UK.
Are You on Track for Retirement?
Discover if your current habits are putting you on the path toward a secure retirement.
Which ISA Type Is Best for You?
Answer a few questions to find the most suitable ISA for your goals — Cash ISA, Stocks & Shares, Lifetime ISA, and more.
Frequently Asked Questions
What is the best way to calculate my take-home salary?
Our Take-Home Pay Calculator shows your estimated net salary after UK income tax, National Insurance, pension contributions, and student loan repayments for the 2025/26 tax year.
How can I estimate future savings with interest?
The Compound Interest Calculator helps you forecast how your savings will grow over time with monthly contributions and an adjustable interest rate.
What mortgage can I afford based on my income?
Use our Mortgage Calculator to estimate how much you could borrow based on your salary, monthly payments, interest rate, and loan term.
How much stamp duty will I pay in 2025?
Our Stamp Duty Calculator shows exactly how much SDLT you'll pay when buying a home, whether you're a first-time buyer, moving house, or purchasing a second property.
How do I know if I'm saving enough for retirement?
The Retirement Quiz can help you assess whether your current saving habits and pension contributions are putting you on track for a comfortable retirement.