Late Tax ReturnAccountants
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Multi-Year Late Return Exposure Estimator

Add each year you haven't filed. We calculate the total penalties, interest, and tax owed across all years, and show you what filing now would save.

HMRC-Registered Accountants
Fixed Written Quote Within 48 Hours
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£
days

Penalties

£1,600

Interest

£604

Tax owed

£3,000

Year total

£5,204

HMRC may have issued a determination for this year. Enforcement risk is significant.
£
days

Penalties

£1,600

Interest

£836

Tax owed

£3,000

Year total

£5,436

HMRC may have issued a determination for this year. Enforcement risk is significant.
Days overdue are auto-calculated from the standard 31 January deadline. Adjust them if HMRC issued a later notice to file. Interest uses HMRC's 7.75% rate effective 9 January 2026 across the estimate; historic rate changes, payments and credits are not modelled.

What this estimate cannot include

Missing expenses, unused losses, tax already paid, HMRC credits, determinations, late-issued notices to file, and any separate failure-to-notify position.

The amount entered for each year must be reconstructed before this total can be treated as your actual liability.

Total exposure

£10,640

2 years outstanding

Continue below to see what must be reconstructed before you rely on this total.

£4,640 penalties + interest, on £6,000 taxBreakdown ▾
Total tax owed£6,000
Total penalties£3,200
Total interest£1,440
Penalties + interest£4,640

High enforcement risk

One or more years are past 12 months, so the estimate includes the second tax-geared late-filing penalty. Any HMRC determinations or collection action must be checked from your actual record.

The oldest years need an actual reconstruction

Estimated filing penalties requiring review

£3,200

This estimate uses the tax figures you entered. It cannot account for missing expenses, unused losses, payments already made, HMRC determinations, different filing dates or whether any failure-to-notify position also exists. Those can materially change the total.

What we check and resolve

  • Reconstruct income, expenses, losses and payments for every outstanding year
  • Reconcile each estimate against HMRC records, determinations and penalty notices
  • Prepare and submit the returns, appeals or disclosures that actually apply

Older years can carry separate notices and deadlines, so the whole HMRC record should be reviewed together.

The oldest years need an actual reconstruction

Older years can carry separate notices and deadlines, so the whole HMRC record should be reviewed together.