In June 2025, HMRC will begin a trial to stop sending certain corporate tax reminder letters by post. Instead, businesses and agents will be expected to check their HMRC online accounts for information previously sent on paper.
The trial will focus on how companies respond to the absence of CT208 letters, including corporation tax payment reminders, instalment notices, and interest statements. This follows a confirmed decision to stop posting four specific letters from June: the CT205/A/A return reminder, CT608 instalment reminder, CT207 interest statement and CT209 payment receipt. Agents will no longer receive the CT603A list of issued notices by post.
This marks a shift in HMRC’s communications from printed letters to an “online first” model. The aim is to reduce administrative costs and encourage digital engagement. Businesses and their agents will now need to check either their online tax account or, where relevant, the Corporation Tax for Agents service to stay informed.
While the corporation tax process itself is unchanged, it’s worth noting that the free HMRC service for submitting company tax returns will be withdrawn in March 2026. After that, small businesses must use commercial tax software to file their returns.
HMRC has not confirmed when it might expand this move to stop other letter types, but further changes are likely if the trial proves successful. The shift is part of HMRC’s broader digital modernisation programme.
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