Why It Is Important to Check Simple Assessment Letters
Simple assessments are now common. HMRC issued more than 1.3 million for the 2023/24 tax year. Because mistakes can occur, you should check simple assessment letters carefully. A short review helps ensure you pay the correct tax and avoid follow-up queries with HMRC.
What Is a Simple Assessment
A simple assessment allows HMRC to collect tax that PAYE cannot deduct. It avoids the need for a full Self Assessment return. Common examples include tax on state pensions and savings interest. The simple assessment letter, known as form PA302, shows HMRC’s tax calculation using the information it holds.
Why More Simple Assessments Are Being Issued
Since 2017, HMRC has issued far more simple assessments. Several factors explain the increase. The personal allowance remains frozen at £12,570. State pension payments have risen under the triple lock. Interest rates have also increased. HMRC has confirmed it is sending more letters for tax due on interest in 2024/25, either by post or through a personal tax account.
Checking for Accuracy
The process aims to simplify tax, but errors still happen. This makes it essential to check simple assessment letters against your own records. Review bank statements, pension notices, and letters from the Department for Work and Pensions. HMRC may base some figures on estimates, so check donations, benefits, and pension contributions carefully.
Tax calculations can become complex when savings and allowances apply. In some cases, your personal allowance or personal savings allowance covers some or all of your interest. When this applies, no tax may be due. HMRC provides online guidance and a calculator to help you review the figures.
Receiving More Than One Letter
You may receive more than one simple assessment for the same tax year. This often happens when HMRC receives new information, such as additional interest income. The later letter shows the total tax due for the year. If you already paid the first amount, deduct it before paying the balance.
Letters Issued in Error
Sometimes HMRC sends simple assessment letters to people who already file Self Assessment returns. If this happens, you or your accountant should contact HMRC and ask for the assessment to be withdrawn.
Deadlines and Payment
The payment deadline depends on the issue date. If the letter is dated before 31 October 2025, payment is due by 31 January 2026. If it arrives later, you have three months to pay. HMRC explains payment options online. If you cannot pay in full, you may be able to set up a time to pay arrangement using HMRC’s online service.
The Bottom Line
Simple assessments can save time, but only when the figures are correct. Always review the letter, compare it with your records, and contact HMRC quickly if something looks wrong. Acting within 60 days helps prevent delays and unnecessary payments.
At Cobble, we help clients understand and check simple assessment letters. If you want reassurance or support, contact our team today.