YOUR tax code can have a huge impact on your finances, and you could be due money back. Here's how you can check if you are owed a refund.

Martin Lewis has shared a free tax code calculator that could save you thousands. Find out how to calculate yours.

How to use Martin Lewis' tax code calculator Previously, Martin Lewis revealed one simple way to check how much you should be paying by using the Money Saving Expert tax code calculator.

Use this free UK Tax Code Calculator from Martin Lewis and MoneySavingExpert to see if you're owed £1,000s in overpaid tax. Plus full 1257L tax code help.

How to use Martin Lewis' tax code calculator Previously, Martin Lewis revealed one simple way to check how much you should be paying by using the Money Saving Expert tax code calculator.