Filing Deadlines and Penalties

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Failure to comply with filing deadlines can lead to serious penalties.

In order for you to avoid those hefty penalties here is a list of some of the filing deadlines you need to take into account along with details of the penalties.

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Corporation Tax         


Payment due 9 months and 1 day after the year end

CT600 form deadline 1 year after the year end


Late payment interest of 3% applied automatically from the day after the tax should have been paid.


Filing of Limited Company Accounts


Abbreviated Accounts and Statutory Accounts to be filed at Companies House within 9 months of the Financial Year end


Up to 1 month late          £150

1 to 3 months                  £375

3 - 6 months                    £750

Over 6 months               £1500

The penalty is doubled if your accounts are late 2 years in a row.


VAT returns


VAT returns and payments are due one calendar month and 7 days after the end of each VAT period


Penalties / assessments may arise. HMRC Advises:-

“The first time you default, you will be sent a warning known as a 'Surcharge Liability Notice'. This tells you that if you pay late ('default') again during the following 12 months - known as your surcharge period - you may be charged a surcharge."

"If you file or pay late again during your surcharge period you may have to pay a 'default surcharge'. This is a percentage of your unpaid VAT. If you don't file a correct VAT return, HMRC will estimate the amount of VAT you owe and base your surcharge on that amount (known as an assessment)."

Your first surcharge will be 2 per cent of your unpaid VAT.

You will be sent a 'Surcharge Liability Notice Extension' that extends your surcharge period for an additional 12 months.

Each time you do not file or pay your VAT on time, your surcharge period will be extended for a further 12 months.

If you continue to make late payments you will be charged increasing penalties of 5 per cent, 10 per cent and 15 per cent of your unpaid VAT.

If you continue to fail to submit a correct VAT return HMRC may increase the estimated amount of VAT “


Personal Tax


PAPER tax returns due 31st October after the tax year ended 5th April.

ON LINE tax returns due 31st January after the tax year ended 5th April.


The penalties for late tax returns are:-

  • 1 day late an initial £100 fixed penalty, which applies even if there is no tax to pay, or if the tax due is paid on time
  • 3 months late, additional daily penalties of £10 per day, up to a maximum of £900. This is as well as the fixed penalty
  • 6 months late, a further penalty of 5% of the tax due or £300, whichever is greater; This is additional to the penalties above.
  • 12 months late, another 5% or £300 charge, whichever is greater. This is additional to the penalties above.

There are also additional penalties for paying tax late of 5% of the tax unpaid at 30 days, 6 months and 12 months.