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s455 calculator

If you owe your company money at the end of its year and don’t pay it back within 9 months, the company pays s455 tax on it. See how much, and the dates that matter. Nothing you type leaves your device.

Based on HMRC’s Company Taxation Manual (CTM61505) and GOV.UK, last checked 29 October 2026 · An estimate, not tax advice

End of the company’s accounting period

Owed at the year end on loans made from 6 April 2026 The overdrawn balance on your director’s loan account

£

Of that, repaid or cleared within 9 months Repayments, a dividend or bonus credited to the account, or an amount written off

£

Owed at the year end on loans made before 6 April 2026 Optional

£

Of that, repaid or cleared within 9 months Optional

£

Work out the s455

How s455 works

• s455 applies when a shareholder of a close company (most small companies) owes the company money at the end of its accounting period.
• If the loan isn’t repaid, written off or cleared within 9 months of the year end, the company pays s455 on what’s still owed, 9 months and 1 day after the year end.
• The rate is 33.75% on loans made before 6 April 2026 and 35.75% on loans made from 6 April 2026.
• The company gets the tax back once the loan is repaid, 9 months and 1 day after the end of the accounting period in which it’s repaid.
• Loans over £10,000 can mean a benefit in kind and need shareholders’ approval.

Example: a company with a 31 March 2027 year end has until 31 December 2027 to clear the loan. If £8,000 borrowed in 2026 is still owed then, the company pays £8,000 × 35.75% = £2,860 on 1 January 2028.

Read our guide to director’s loan accounts. Sources: CTM61505 and Director’s loans on GOV.UK.