Practical guide
Section 455 tax
This guide explains the company-level Section 455 issue that can arise when an overdrawn director's loan balance is still outstanding after the normal window.
Why the repayment deadline matters
Section 455 is driven by whether the overdrawn balance remains outstanding after the accounting period end plus the normal 9 months and 1 day window.
That makes the repayment date a live operational fact, not a detail to be confirmed later.
Rule summary
Section 455 depends on whether the balance is cleared in time
The key question is whether the overdrawn balance will still be outstanding after the accounting period end plus the normal 9 months and 1 day window.
If it remains unpaid beyond that point, a company-level Section 455 tax exposure can arise.
Worked examples
How the rule behaves in practice
- Loan repaid within the window: The balance is repaid before the end of the normal repayment window. The calculator keeps the Section 455 exposure at or near zero because the balance is cleared in time.
- Loan still outstanding: The balance is expected to remain unpaid beyond the deadline. The estimate produces a Section 455 exposure because the company is carrying the overdrawn loan too long.
Practical consequences
- Once the deadline is missed, the company can face a tax cost even though the balance still appears to be only a loan-account matter internally.
- That is why repayment planning and date visibility are central to managing the issue.
Important limits
- This tool does not replace detailed professional review where the facts are unusual or contested.
- If the underlying rule depends on reliefs, appeals, or special handling, the real outcome may differ.
Turn the result into an action plan
- Use the calculator once the accounting period end and likely repayment date are clear.
- Pair the result with the broader director loan account guide if the overall extraction position is still unresolved.
- Keep the repayment deadline on the company calendar so the issue is managed before the window closes.
Use the tool
Director Loan Section 455 Tax Calculator
Estimate the Section 455 tax exposure on an outstanding director loan balance using the accounting period end and repayment timing.
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