UK: What is the DIFFERENCE between BR tax code and 0T tax code?

-0T means no tax allowances (it is "zero" T). Income will be taxed at all the rate bands, depending on how much you earn. If you earn 拢90,000 you will pay tax of 拢29,000



BR means that all your income, no matter how much, will be taxed at 20%. 拢90,000 income will mean tax of 拢18,000.