PSA

my understanding is that if my taxable income is less than £50270, i have a personal saving allowance of £1000. my question is : "does the taxable income limit of £50270 includes the interest saving or not". in other words, can I earn a salary of £50269 and a interest of £900 and still fall within the basic income tax range of 20%.

Yes. Taxable income will include (taxable) interest. You wouldn't include tax exempt interest, for example from a cash ISA. If your taxable income is £51,169 like you describe and don't have any Gift Aid contributions or RAS (relief at source) pension contributions then you would be deemed a higher rate payer and your savings nil rate band would be £500 not £1,000. The first £500 of your interest would still get taxed, just at a 0% tax rate.

Hi olivier bluche,
The interest would be included in calculation of the taxable income.
Thank you.