Tools
Free money tools
Quick calculators for the questions people actually search for. No sign-up, nothing stored.
Tax
Side hustle tax calculator
See how much tax and National Insurance you owe on side income, and what to set aside each month.
Open the toolEarn
Which side hustle suits you?
Five quick questions, then your three best-matched side hustles with a full guide for each.
Open the toolTax
Making Tax Digital checker
Find out if and when you need MTD software and quarterly updates for your side income or rent.
Open the toolSave
1p savings challenge tracker
Tick off all 365 days, forwards or in reverse, and watch your way to £667.95.
Open the toolSave
ISA allowance checker
See how much of your £20,000 ISA allowance is left before 5 April, across every type of ISA.
Open the toolInvest
Compound interest calculator
See how a lump sum and monthly savings could grow over time, and how much fees cost you.
Open the toolSave
Emergency fund calculator
Work out how much you need for three to six months of essentials, and how long it will take to save.
Open the tool