Tax owed between 2023-24 due Jan 2024 includes almost half of next years (predicted?) income

Hello folks, as the title suggests, my partner (and me) are trying to understand her tax bill. The summary is as follows: Due 31 Jan 2025 - £3036.77 (Balancing payment for tax year 2023-2024) Due 31 Jan 2025 - £1428.68 (First payment on account 2024-2025) Due 31 Jul 2025 - £1428.69 (Second payment on account for 2024-2025) I believe she was under the assumption that she would be paying the £3036.77 but why are the other payments due in 2025 if they are for tax year 2024-2025? Thank you! Best regards MJ

Hi,

The payments on account requested are advance payments for the tax year 2024 to 2025. The first is requested on the 31st January 2025, 10 months into the 2024 to 2025 tax year, while the second is requested 4 months after the end of this tax year. You can read more about payments on account, and the reasons for their scheduling, here:

Understand your Self Assessment tax bill

Thank you.