I am doing my self employed accounts and have an entry of £40 which is for
interest earned on a business bank account. It is down in my accountancy
software as Other Savings income.

Where do I put that amount on my Self Assessment tax form? Does it go on the
Self Employed suplimentary pages? The bank interest section on the Main tax
form? Or the Other Income section of the Main tax form?

I am unsure as it is related to my business.

Thanks,

Jon