Tax Compliance Checks

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HM Revenue and Customs (HMRC) tax compliance checks are a means for the UK tax authority to verify that individuals and businesses are correctly reporting their income and paying the correct amount of tax. The purpose of these checks is to ensure that everyone pays their fair share of tax and to prevent tax avoidance and evasion.


If HMRC suspects that an individual or business is not compliant with tax laws, they may carry out a tax investigation. During a tax investigation, HMRC may request information and records, and may make a formal demand for payment if they find any underpaid tax.


Something may trigger a check. However, HMRC has the right to check whether any tax return is accurate and complete.

What triggers a compliance check?

What triggers a compliance check?


HMRC carries out tax compliance checks in a variety of ways, including:





How are checks undertaken?

How are checks undertaken?


HMRC may ask to visit your home, business or an adviser’s office, or ask you to visit them. You can have an accountant or legal adviser with you during a visit.

You may have to pay a penalty if HMRC sends you an inspection or information notice and you do not send information or refuse a visit. You will not have to pay a penalty if you have a ‘reasonable excuse’, for example:

If you think HMRC should stop the check, write to the office that sent you the letter, giving your reasons why.

You can apply for alternative dispute resolution (ADR) at any time if you do not agree with HMRC’s decision or what they’re checking.

After the check

After the check


HMRC will write to tell you the results of the check. You’ll be:

You may also have to pay a penalty. HMRC will look at:

If you have problems paying, you can tell the officer dealing with the check.

Appeal a decision

Appeal a decision


If you are not happy with the outcome of a compliance check, you can appeal. Your decision letter will tell you how to make an appeal and when you must appeal by. 


The deadline is usually 30 days from the date of the letter.