Tax advisers face August 2026 deadline for mandatory registration with HMRC

HMRC has issued a reminder that tax advisers must complete mandatory registration before 18 August 2026 under new regulatory requirements. The deadline is now one month away, with advisers needing to ensure their compliance ahead of this key date. Those who fail to register by the deadline risk non-compliance with the updated rules. The registration process applies to advisers who meet the eligibility criteria under the new scheme.

Source: HMRC (GOV.UK) – Read the original