Hello, I am not very savvy about tax so please bear with me. Have received an email from HMRC that my taxcode has changed. Logged in and it appears now to be 1236L instead of the earlier 1250L. The difference seems to come with the line "Untaxed interest on savings and investments", £136. Does anyone know what this means? I have very little savings, less than 5k, some of it on an ISA but not all.
Thank you!