Self Assessment Penalties
What HMRC charges if you file or pay late, and what to do if you have already missed a deadline.
Articles
Late filing penalties
How late filing penalties build up: the £100 immediate fine, daily penalties, and 6 and 12 month escalations.
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Self Assessment late payment penalties
Interest plus 5% surcharges at 30 days, 6 months, and 12 months. How to limit the damage if you cannot pay on time.
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Late filing vs late payment
These are two different penalty regimes. Filing late triggers fines even if you owe nothing. Here is the difference.
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