Payments on account in self assessment

Hi, I can see different messages in previous posts on how to handle previous payments made on account when completing self assessment. On some posts the advice seems to be to file your self assessment without including any payments on account you have already made for the relevant tax year and wait for your account to be updated afterwards. But on other posts it says you should subtract the payments on account - although it doesn’t say where to do that. Could you please advise what if anything I need to do. Should I not include payments on account payments made or should I subtract them and if so where? Thanks.

Hi,
You do not include the payments on account on your Self Assessment tax return.
Once submitted the payments on account will be allocated against the balance due and will be taken into account on your statement. 
Thank you.