HMRC has provided a detailed explanation of how pension tax works, addressing a taxpayer's concerns about changes to their circumstances. The authority outlined when it may adjust tax records and key timelines to be aware of, as well as how certain taxpayers can reclaim money from the taxman.
Taxpayer Query on SIPP Contributions
A taxpayer raised a question on social media regarding pension contributions into a Self-Invested Personal Pension (SIPP). A SIPP is a pension pot where individuals decide where their money is invested, creating a tailored portfolio. The taxpayer had submitted a self-assessment for the 2025/2026 tax year, including details of their SIPP contributions, and wanted to know if they could make changes to their tax return.
They also asked: "Can I check the amount I enter in my submission for pensions is my contribution plus basic rate tax refund via provider (from HMRC)?"
HMRC's Response on Processing Times
HMRC replied: "It takes 72 hours for an online return to be processed, you can go back in and amend after that time." Regarding the tax on contributions, HMRC added: "Yes, you gross up by the 20 per cent basic rate that the pension scheme claim back."
With private pensions, individuals are entitled to claim tax relief at source on their contributions, including SIPPs and certain workplace schemes. For SIPPs, most providers claim tax relief at the standard 20 per cent rate and add the sum directly to the pension pot.
Clarification on Terminology
The taxpayer also sought clarification on the term "processed." They asked: "Once it's been through that 72 hours, does processed mean checked or is that separate?"
HMRC explained: "That's the initial checks, returns can always be subject to further checks, but usually the 72 hours is sufficient." Those on the higher or additional rate for income tax must submit a claim to receive extra tax relief beyond the standard 20 per cent.
Adjustments for Different Amounts
The taxpayer had a further query, noting that the sum they will contribute to their SIPP this year will likely be lower than the amount paid in during 2025/2026. They asked HMRC to explain what happens given the two amounts would be different.
HMRC confirmed it can make changes to a person's record in such cases, stating: "We can adjust for different amounts each year, so long as you fill the return out correctly."
