Box 30 VAT payments

I charged VAT for a job I completed at the beginning of March 2024 and received the income in March 2024, but I didn't pay the VAT to HMRC until July 2024 because of the VAT cycle I'm in. I use cash basis for accounting, but I'm not allowed to pay VAT straightaway, so can I include the payment in my accounts for 2023/24 in Box 30 when it was charged? It's a chunk of money and I'd like to account for it in the same year as the income it was charged on.

Hi G1965M,
As you use the cash basis of accounting, you would include the VAT in the Self Assessment tax return, for the tax year in which it comes out of your account and is paid to your VAT account.
Thank you. 
 

Thanks v much for your response. If I record my income and expenses excluding vat, when I do my self assessment does that mean I don't have to include vat payments/repayments in my return at all?

Hi,
Please refer to guidance at SA103F Notes 2024
Thank you.