Financial calculators

Simple financial planning tools to help you make the most of your money

Our easy-to-use financial calculators can help you budget, save and plan for your future goals. You can work out how much you could afford to borrow for your home, calculate how much tax you may need to pay, and see when to invest.

Bear in mind that the value of investments can go down as well as up and you may get back less than you invest.

Savings and investments

Investment calculator

Whether you have a single lump sum to invest or you want to build your pot month by month, our simple investment calculator can show your potential returns over time.

Cost of delay calculator

Did you know that investing sooner rather than later could mean it costs less to reach your goals? This calculator shows how much more you might need to pay, the longer you delay your investment.

Inflation effect calculator

Due to inflation, cash you hold today is likely to be worth less in the future than it is now. Use our inflation effect calculator to see the potential impact of inflation on your money.


Mortgage affordability calculator

Wondering how much you could afford to borrow for your home? Our mortgage affordability calculator will give you an indication of how much you could borrow based on your annual income.

Stamp Duty calculator

If you’re buying a home in England or Northern Ireland, you may be required to pay Stamp Duty Land Tax (SDLT). Use our free calculator to work out how much Stamp Duty you may need to pay.

Land and Buildings Transaction Tax calculator

Thinking about buying a residential property or piece of land in Scotland? Our free calculator helps you work out how much Land and Buildings Transaction Tax (LBTT) you may need to pay.

Land Transaction Tax calculator

If you’re buying a property over a certain price threshold in Wales, you may need to pay Land Transaction Tax (LTT). Work out how much this might be using our free calculator.


Health risk calculator

How at risk are you? Use our free health risk calculator to see the likelihood of illness, injury or death before your retirement age.