Key dates - Self Assessment

6th April
New tax year. Receipt of a Notice to Complete a Tax Return if you are required to submit a return.

19th May
Year end PAYE returns including P35 forms, CIS36 forms and P14 Forms are due to be submitted to HM Revenue & Customs.

6th July
Forms P11D, P11D(b) and P9D must be submitted to HM Revenue & Customs and a copy of P11D or P9D to be sent to all employees.

31st July
2nd instalment due of self-assessed tax payment for the year to 5 April.

30th September
For the tax office to calculate your tax bill, you must submit your self-assessment tax return for the year to 5 April 2007 by this date.

31st January
All self-assessment tax returns for the year end 5 April 2007 to be submitted.
Any final tax payments due for the year to 5 April 2007 to be paid.
1st instalment due of self-assessed tax payment for the year to 5 April 2008.

Key dates - Limited Companies

9 months after year end
Any Corporation tax payable by the company should be paid. Any late payments will be subject to interest and penalties.

10 months after year end
The annual statutory accounts for the company are due to be filed at Companies House. Any late filing will be subject to fines starting at £100.

12 months after year end
Corporation Tax Returns to be submitted to HM Revenue & Customs.