Balancing payment different from tax return

On my self assessment account the "Current Position" shows a different amount from the combined amounts on my SA302 form from both 2022/2023 and 2021/2022. I believe this might be due to having to make an amendment on the 2022/2023 self-assessment which was originally showing a similar amount to the balancing payment but after the amendment it is no longer the case. I have no outstanding tax being carried over from previous fiscal year based on the self assessment for that year. I'd like to understand what exactly goes into the balancing payment calculations as it doesn't have a breakdown like the individual tax year returns on the SA302 forms, and if possible to correct it. I can prov

Hi,

You wold need to contact HMRC to review your SA statement.

Self Assessment: general enquiries

Thank you.