Further information (part 4)
Updated 20 May 2024
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This publication is available at https://www.gov.uk/government/publications/help-to-avoid-errors-in-claims-for-plant-and-machinery-allowances-gfc5/further-information-part-4
If you have made an error in an earlier plant and machinery claim
You can usually amend your tax return online within 12 months of the statutory filing date. If you can no longer amend your tax return, then contact your customer compliance manager if you have one. Mid-size businesses without a temporary customer compliance manager may choose to contact our customer support team. Other businesses may contact HMRC using other routes.
Where customers fail to meet their obligations, they may be subject to:
- penalties
- interest
- both penalties and interest
If you think you may have failed to meet your obligations, read the HMRC compliance factsheets on penalties to find out more.
Further questions
You may contact Guidelines for Compliance (GfC) team about the style and content of these guidelines, but the GfC team is unable to answer technical tax questions or to give an opinion on open compliance checks.
Make sure you include the Guidelines for Compliance reference number, GfC5/2024, in the subject line. Email ccgguidelinesforcompliance@hmrc.gov.uk.
Sending information by email carries certain risks and HMRC will assume that by sending information by email you understand and accept these risks.
Guidance and legislation
Further information on guidance and legislation can be found in:
- general guidance for capital allowances
- technical guidance for capital allowances
- the Capital Allowances Act 2001
- sections 9 to 14 of The Finance Act 2021 (super-deduction and special rate allowances)
- section 7 Finance (No. 2) Act 2023 (temporary full expensing and 50% first-year allowance)
- clause 1 Finance Bill 2023 (permanent full expensing and 50% first-year allowance)