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  • Huge amount of non-coded Tax appeared in my account...

    I just received a letter to say my tax code has changed to 742T - looking at my account on the gateway, I can see a 'non coded' amount of extra income that's effectively the same as my PAYE salary. I don't have any extra income, so have no idea where this has come from. As a result HMRC think I earn twice as much as I do. (I wish!) How has this happened? Why on Earth have they got the impression I've earning tens of thousands of extra income?!?