| 6 July 2014 | PAYE | Deadline for employers to file forms P11D, P9D and P11d(b) for the tax year 2013-14 |
| PAYE | Deadline for employers to give copies of forms P11D and P9D to employees | |
| 22 July 2014 | PAYE | Due date to electronically pay Class 1A NICs for the tax year 2013-14 |
| 31 July 2014 | Income Tax Self Assessment | An unfiled tax return for the tax year 2012-13 will start to attract a tax – geared penalty – the higher of £300 and 5% of the liability at 31 January 2014 |
| Income Tax Self Assessment | Deadline to make second payment on account for the tax year 2013-14 | |
| Tax Credits | Renewal deadline to provide information to finalise 2013-14 awards and renew claims for 2014-15 | |
| Corporation Tax Self Assessment | Deadline for filing the corporation tax return with HMRC for accounting periods ended 31 July 2013 | |
| Corporation Tax | Deadline for paying corporation tax for the financial year ending 31 October 2013 | |
| Accounts | Deadline for filing accounts with a financial year end of 31 October 2013 with Companies House |
