When I filled in last year's tax return, it told me not only that I had to pay some additional tax for tax year 2015/16, but also that I had to make two payments on account for tax year 2016/17 (one by 31 January, the other by 31 July I think) which I duly did. Now I am filling in my tax return for 2016/17 and I can't see anywhere to say that I have already made payments on account for 2016/17. The calculation is telling me that I need to pay an amount in tax, but that amount is less than the payments that I have already made on account for this year. I can see having checked my account that HMRC has a record that I made those payments. So am I safe not to make the payment that my tax return tells me is due, on the basis that that amount will simply be deducted from the amount that I have already paid on account for 2016/17. Or if not, where on the tax return am I supposed to tell HMRC about the payments on account? TIA