If your company has lent you money and you cannot repay it, writing the loan off might seem like the cleanest solution. But it is not a neutral event. Writing off a director's loan triggers multiple tax charges on both you personally and the company. Getting it wrong can mean paying thousands in unexpected tax, plus interest and penalties.

Here is what actually happens when a director's loan is written off, and how to handle it properly.

What Is a Director's Loan Account?

Every limited company must keep a director's loan account (DLA). It records money that moves between you and the company outside of salary, dividends, or expenses. If you take more out than you put in, the DLA shows a debit balance. That is a director's loan.

Common reasons for a debit balance include:

  • Drawing money before dividends are formally declared
  • Paying personal bills from the company account
  • Using company funds as a deposit on a property
  • Borrowing from the company for personal investment

When the balance is positive (the company owes you), there are no immediate tax issues. When it is negative (you owe the company), you need to manage it carefully.

What Does "Writing Off" a Director's Loan Actually Mean?

Writing off a loan means the company formally releases you from the obligation to repay. The debt is removed from the company's books. In accounting terms, the company recognises that it will not recover the money.

This is not the same as "forgiving" the loan informally. HMRC looks at the substance, not the label. If you have taken money and never repaid it, and the company does not pursue repayment, HMRC can treat it as a write-off regardless of whether the paperwork says so.

The key date is the date the company formally writes off the debt, usually by board resolution and journal entry in the accounts.

Director Loan Write Off Tax Implications: The Three Tax Charges

Writing off a director's loan triggers three separate tax consequences. They apply simultaneously. Ignoring one does not make it go away.

1. Benefit in Kind on the Director

When a company writes off a loan to a director, the written-off amount is treated as a benefit in kind. This applies under the beneficial loan legislation (s.175 ITEPA 2003).

The amount written off is added to your gross income for the tax year. You pay income tax on it at your marginal rate. If you are a higher rate taxpayer (40%), and the company writes off £20,000, you owe £8,000 in income tax.

The company must report this on form P11D (benefits in kind) and pay Class 1A National Insurance at 13.8% on the amount written off. For that £20,000 write-off, the company pays an extra £2,760 in employer NI.

There is no £10,000 exemption here. The beneficial loan exemption only applies to the interest on a loan, not the capital write-off. The full written-off amount is taxable.

2. Section 455 Tax on the Company

Section 455 of CTA 2010 charges the company at 33.75% on any outstanding director's loan balance that is not repaid within 9 months and 1 day of the company's year-end.

If you write the loan off before that 9-month deadline, the S455 charge does not arise. The loan is gone. But if the loan was already outstanding at the year-end and you write it off after the 9-month window, the company has already paid the S455 tax. Writing it off does not automatically refund that tax.

You can claim the S455 tax back once the loan is written off, but only by filing a claim with HMRC. The claim must be made within 4 years of the end of the accounting period in which the loan was written off. The repayment is not automatic.

If the loan was written off before the 9-month deadline, no S455 charge applies in the first place.

3. Deemed Dividend Treatment

HMRC treats a written-off director's loan as a dividend for tax purposes. This means the written-off amount is taxed as dividend income, not as a capital gain or a gift.

Why does this matter? Because dividend tax rates are lower than employment income rates. But the benefit in kind charge (point 1 above) is based on employment income, not dividend income. So you pay income tax on the benefit in kind, and HMRC also treats the write-off as a dividend for the company's corporation tax purposes.

In practice, the company cannot deduct the written-off loan as a corporation tax expense. It is not a trading expense. It is a distribution of profits. The company pays corporation tax on its profits as normal, and the write-off is treated as a dividend distribution.

This means the company gets no tax relief for writing off the loan. The money is gone, and the company still pays tax on the profits that funded it.

Worked Example: A Real Scenario

Let's say you are a director of a Manchester-based consultancy. Your company has made profits of £150,000. You borrowed £30,000 from the company in March 2024 to cover a personal tax bill. You did not repay it.

Your company's year-end is 31 March. By 31 December 2024 (9 months and 1 day later), the loan is still outstanding. The company files its CT600 corporation tax return and pays S455 tax of 33.75% on £30,000 = £10,125.

In January 2025, you decide to write the loan off. The company passes a board resolution and journals the write-off.

Here is what happens:

  • Benefit in kind: You are a higher rate taxpayer (40%). The £30,000 is added to your income. You owe £12,000 in income tax. The company pays Class 1A NI of £4,140 (13.8% of £30,000).
  • S455: The company has already paid £10,125. You can claim this back from HMRC by filing a claim. It will take several weeks to process.
  • Dividend treatment: The company cannot deduct the £30,000. It pays corporation tax on its £150,000 profit as normal (£25,500 at 19% for profits under £50k, then marginal relief up to £250k).

Total additional tax from the write-off: £12,000 (your income tax) + £4,140 (company NI) = £16,140. Plus the £10,125 S455 that you can eventually reclaim. Net cost to you and the company: £16,140, plus the £30,000 the company lost.

That is a £46,140 hit for what seemed like a simple write-off.

Can You Avoid These Tax Charges?

There are limited ways to avoid the tax charges on a written-off director's loan. But they require planning before the loan is made, not after.

Repay Before Year-End

The simplest approach is to repay the loan before the company's year-end. If you can borrow from another source (e.g., a personal loan from a bank, a remortgage) and pay the company back, the loan balance is cleared. No S455, no benefit in kind, no write-off needed.

You can then take the money back as a properly declared dividend in the next accounting period. But be careful: HMRC watches for "bed and breakfasting" (repaying then immediately re-borrowing). If you repay on 30 March and re-borrow on 2 April, HMRC can treat it as a single loan.

Declare a Dividend to Clear the Balance

If the company has sufficient distributable reserves, you can declare a dividend to clear the loan. The dividend must be properly documented (board minutes, dividend vouchers) and paid within the same accounting period. The dividend is taxed as dividend income in your hands, not as a benefit in kind. Dividend tax rates are lower than income tax rates.

For a higher rate taxpayer, dividend tax is 33.75% (after the £500 allowance). Income tax on the benefit in kind would be 40%. So declaring a dividend saves you 6.25% on the amount. Plus the company avoids Class 1A NI.

Negotiate a Repayment Plan

If you cannot repay in full, agree a formal repayment plan with the company. HMRC accepts that a loan being repaid over time is not a write-off. The loan remains outstanding, and you pay S455 each year until it is cleared. But you avoid the benefit in kind and deemed dividend treatment.

The repayment plan must be commercially realistic. If you agree to repay £100 per month on a £30,000 loan, HMRC may argue it is a disguised write-off.

What If the Loan Was Made for Business Purposes?

If the loan was for a genuine business purpose (e.g., to buy equipment for the company, to cover a temporary cashflow gap), the write-off may be treated differently. But HMRC is strict. A loan used to pay your personal tax bill is not a business purpose.

If the loan was made to another group company or to fund an acquisition that benefits the trade, you may be able to argue it is a trading debt. In that case, writing it off could be a deductible expense for corporation tax. But this is rare for director loans.

Speak to your accountant before writing off any loan that was used for business purposes.

Reporting Requirements

If you write off a director's loan, you must:

  • File a P11D for the director showing the benefit in kind
  • Pay Class 1A NI on the amount written off
  • Include the write-off in the company's accounts as a distribution (not an expense)
  • File a claim with HMRC to recover any S455 tax already paid
  • Update the director's self assessment to include the benefit in kind

Missing any of these steps can lead to HMRC enquiries, penalties, and interest.

When Should You Speak to an Accountant?

If your director's loan account shows a debit balance of more than £10,000 at any point in the year, you should already be talking to your accountant. If the balance is outstanding at your year-end, you need a plan before the 9-month deadline passes.

If you are considering writing off a loan, do not do it without professional advice. The director loan write off tax implications are complex and the costs can be severe. Our ICAEW qualified team can help you assess your options, calculate the tax charges, and structure a solution that minimises the damage.

If your company has already written off a loan without reporting it properly, contact us to discuss how to correct the position with HMRC. Late disclosure is better than no disclosure.

For more on managing your director's loan account, read our guide to director pay and dividends.