September TAX DEADLINE DATES
March TAX DEADLINE DATES
August 15, 2024
February TAX DEADLINE DATES
August 15, 2024
SEPTEMBER 2023 TAX DEADLINE DATES
1 September 2023
Payment of corporation tax liabilities for periods ended 30 November 2022 if not liable to pay by instalments.
CheckHMRC website for changes to car mileage fuel rates.
7 September 2023
Due date for VAT return and payment for 31 July 2023 quarter.
14 September 2023
Quarterly corporation tax instalment payment for large companies.
File paper monthly EC sales list – only relevant to a business based in Northern Ireland selling goods.
19 September 2023
PAYE/National Insurance/student loan/CIS payments for month ended 5 September 2023 if by cheque.
File monthly CIS return.
21 September 2023
File online monthly EC sale list – only relevant to a business based in Northern Ireland selling goods.
Supplementary intrastate declarations for August 2023 – arrivals only for a GB business, arrivals and despatch for a business in Northern Ireland.
22 September 2023
PAYE/National Insurance/student loan/CIS payments for month ended 5 September 2023 if paid online.
30 September 2023
Companies House should have received accounts of private companies with 31 December 2022 year end and public limited companies with 31 March 2023 year end.
HMRC should have received corporation tax self-assessment returns for companies having an accounting period ended 30 September 2022.
End of CT61 quarterly return period.
Business rates – small business relief claims for 2022-23 should be made to local authority by today.
Businesses to reclaim EC VAT chargeable in 2022.
Companies with a 30 June 2023 period end must notify HMRC if they have profits within the diverted profit tax unless none would arise.
