Tax on dividends

I may have just exceeded the £1000 tax-free dividend allowance for 2023/24 and will likely exceed the £500 allowance for the current tax year. Will HMRC inform me if I need to complete a tax return or will my tax code be adjusted to claw back any unpaid tax in a subsequent tax year, as I understand happens with non-ISA savings interest from bank/ building society accounts ? Thanks.

Hi,
If your dividend income exceeds the year's allowance, you do need to inform us of the amount you received for that year.
You can do this by phone, in writing - find out more here Tax on dividends
Thank you.