hmrc penalties itsa tax compliance submission deadlines

HMRC Penalty System Overhaul: Point-Based Penalties Now Apply Beyond VAT

HMRC is rolling out point-based penalties to Income Tax Self-Assessment (ITSA) and other tax obligations. Repeated submission failures now compound penalties rather than resetting annually.

Published 4 September 2026 · Source: AccountingWEB

Point-Based Penalties: The New HMRC Enforcement Model

HMRC is rolling out its point-based penalty system beyond VAT to Income Tax Self-Assessment (ITSA) and other tax obligations. This represents a fundamental shift in how penalties are calculated and compounds over time.

Under the old system, a late VAT return might attract a percentage penalty, but submitting on time the following quarter reset the clock. Under the new point-based model, penalties accumulate. A sole trader who submits their quarterly ITSA return late in July, September, and November will face penalties that compound, not reset. After four missed submissions, the penalty escalates sharply.

Repeated failures now carry exponentially higher financial consequences than single-quarter errors. A director juggling tight cash flow who delays quarterly submission by a few days faces a penalty point. Repeat this three times, and HMRC's system automatically escalates to a higher penalty band.

What action is needed? Set calendar reminders for all tax submission deadlines: quarterly MTD ITSA updates (if in scope), monthly PAYE (if employing staff), VAT returns (if registered). Implement automated reminder systems with your accountant or software. If you anticipate missing a deadline, notify HMRC before the submission date to request a deferral or extension. Proactive contact is far cheaper than the combined cost of multiple penalty points.

Tax compliance planning should now include deadline management as a core element. Non-compliance is no longer forgivable; it is engineered to escalate financially.