Want to know more about the letters in your tax code? Check out our guide Tax codes explained: https://tinyurl.com/47p5rzjf To check that you’re on the right tax code, you can visit the gov.uk site’s section; if you think your code’s wrong, you can let them know there too! Here's the link if you want to check now: https://www.gov.uk/tax-codes | RIFT Tax Refunds