Corporation Tax: how to make a claim or election
Find out how and when you can make a claim or election, and what information you need to include.
Overview
A claim is when you tell HMRC that you’re entitled to a relief that reduces either:
- your company or organisation’s taxable profit
- the amount of Corporation Tax you have to pay
An election allows you to choose a particular way of having your company or organisation’s affairs treated for Corporation Tax purposes.
For example, you may in some circumstances be able to elect to have a business asset treated as a short-life asset for capital allowances purposes. This would allow your company or organisation to ‘write-off’ the cost of the asset over its lifetime.
Read more about the conditions for making a claim or election.
What to include in a claim
You need to state the amount of the claim in figures, and you must include enough information in the claim to fully describe what you’re claiming for.
You have to provide specific information for certain reliefs, so it’s essential to check the detailed rules in the relevant HMRC manual before you claim.
What to include in an election
You must clearly state what your company or organisation is choosing to do, and which accounting periods you’re doing it for.
There are restrictions on how often you can change some elections, and others apply indefinitely, so it’s essential to check the detailed rules in the relevant HMRC manual.
When to make your claim or election
A claim or election should be made in (or accompany) your Company Tax Return, because the claim or election may affect your Corporation Tax calculations and how much tax you have to pay.
If you do not make the claim in your return, and you’re still in time to make an amendment to your return, then you can either:
- send HMRC a completely revised (amended) return
- make your claim separately, in writing, to Corporation Tax Services — HMRC will treat your letter as an amendment to your return
If you are a large business customer, write directly to your Customer Compliance Manager.
Time limits
Most claims and elections have a specific time limit and after a certain time you may not be able to claim at all. You should not delay your claim or you may lose out. This is often the same as the time limit for delivering or amending your Company Tax Return.
If no specific time limit applies, then a time limit of 4 years from the end of the Corporation Tax accounting period to which the claim relates applies.
The nature of some reliefs — such as carrying back a loss to a previous accounting period — means that you cannot claim any relief until you’ve delivered your return to HMRC for the period from which the relief arises.
For many reliefs, including losses, capital allowances and group relief, HMRC can sometimes allow a late claim after the normal time limit has ended.
Claims or elections after the deadline for amending your return
If you’re making a claim or election after the deadline for amending your return has passed, you should write to Corporation Tax Services. If you are a large business customer, write directly to your Customer Compliance Manager.
If the claim is also being made after the normal time limit for making it, you should make that clear in your letter and explain why you think that HMRC should accept your late claim.
Revising a claim or election
If you find you’ve made a mistake in a claim or election, you can correct it by amending your Company Tax Return — as long as you’re within the time limit for amending your return.
If you’re too late to amend your return, or too late to revise your claim or election within its own time limit, you should tell HMRC by writing to Corporation Tax Services. If you are a large business customer, write directly to your Customer Compliance Manager.
HMRC may make an assessment to collect any tax lost as a result of the mistake in the claim or election.
Compliance checks and claims and elections
HMRC can ask for more information about your company or organisation’s claim or election by making a compliance check. If the claim or election is included in your return, it may be checked as part of a check of that return.
If the claim or election is not made in a return or in an amendment to a return, HMRC may still check it but they use a slightly different process. Read more information about the different process in the company taxation manual.
Updates to this page
Published 13 February 2006Last updated 21 October 2024 + show all updates
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Information has been updated to confirm large businesses customers should contact their Customer Compliance Manager when they want to make or revise a claim or election.
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First published.