Can I Claim Home Office Expenses Through My Limited Company?

The short answer is yes, you can claim home office expenses through your limited company. But the method matters, and getting it wrong can trigger a tax bill you did not expect.

If you are a director working from your home in Shoreditch or a contractor running your Ltd company from a spare room in Manchester, HMRC allows your company to reimburse you for the costs of running your home office. The key question is how much you can claim and whether the tax treatment favours you or your company.

This guide covers the two main methods for claiming home office expenses as a limited company director, what counts as allowable, and the traps that catch people out.

What HMRC Actually Allows for Limited Company Home Office Claims

HMRC recognises that directors and employees working from home incur additional costs. Your limited company can pay you a tax-free allowance to cover those costs, provided the arrangement is genuine and the amounts are reasonable.

The rules sit under HMRC's employment expenses framework. Because you are both a director and an employee of your company, the claim works through your employment. The company pays you a reimbursement, and that reimbursement is deductible against corporation tax. You receive it tax-free, provided it does not exceed the actual costs incurred.

There are two routes to calculate the claim. Choose the one that fits your situation.

Method 1: The Flat Rate Allowance (Simplest Route)

HMRC publishes a flat rate of £6 per week (£312 per year) for employees who work from home regularly. This is the simplest method. Your company pays you £312 per year, records it in the payroll as a tax-free expense, and deducts the same amount against its corporation tax liability.

No receipts are needed. No calculations. No apportioning your electricity bill between work and personal use.

But there is a catch. The £6 per week rate is only available if you work from home regularly. HMRC defines "regularly" as working from home on a consistent basis, not just the odd day. If you work from home two or three days a week and use an office the rest of the time, you still qualify. If you work from home one day a month, you probably do not.

The flat rate is also capped at £6 per week. If your actual costs are higher, you cannot use this method to claim more. You would need to move to Method 2.

Method 2: Actual Costs (For Higher Claims)

If your home office costs exceed £312 per year, you can claim the exact additional costs your home office creates. This requires a calculation based on the number of rooms you use and the proportion of time they are used for business.

HMRC expects you to apportion shared costs. You cannot claim the full electricity bill, just the business proportion. The calculation works like this.

• Identify the total annual cost of each household bill that increases with business use: electricity, gas, water, broadband, contents insurance, council tax, mortgage interest or rent.
• Determine the proportion of your home used for business. If you use one room out of five exclusively as an office, that is 20%. If you use a spare room occasionally, you might use a time-based apportionment instead.
• Apply the business proportion to each cost. If your electricity bill is £800 per year and your office represents 20% of the house, the business proportion is £160.
• Add up all the apportioned costs across every bill.

Here is a worked example for a director in a three-bedroom house in Bristol using one room exclusively as an office.

Electricity: £800 per year, 20% apportionment = £160. Gas: £600 per year, 20% = £120. Broadband: £360 per year, 100% business use = £360. Contents insurance: £150 per year, 20% = £30. Total claim: £670 per year.

Your company can reimburse you £670 tax-free. The company deducts £670 against its corporation tax, saving £127.30 at 19% or £167.50 at 25% depending on profit levels.

You need to keep a record of your calculation and the bills you used. HMRC can ask for this evidence in a compliance check.

What You Cannot Claim

Some costs are not allowable through the home office route. Capital costs like buying office furniture, a new desk, or a monitor are not home office expenses. Those are capital allowances, claimed separately through your company's fixed asset register.

Mortgage capital repayments are not deductible. Only the interest element of your mortgage can be apportioned, and even then only if you use the home office exclusively for business.

If you claim actual costs, you cannot also claim the £6 per week flat rate. It is one or the other.

The Sole Trader vs Limited Company Difference

Many business owners assume the rules are the same for sole traders and limited companies. They are not.

A sole trader claims home office expenses on their self assessment tax return using the simplified expenses method (£10 to £18 per month depending on hours worked) or actual costs. The claim reduces their income tax bill directly.

A limited company director claims through the employment route. The company pays the director a reimbursement, which is tax-free for the director and deductible for the company. The company must process this through payroll, even if no tax or NI is due.

If you are a sole trader considering incorporation, the home office claim method changes. Our incorporation guide covers the full picture of switching structures.

Common Mistakes Directors Make

The most frequent error is treating the £6 per week as an automatic entitlement. It is not. You must genuinely work from home regularly. If you work from a co-working space in Camden three days a week and from home two days, you still qualify. If you work from a client's office five days a week and check emails from home in the evening, you do not.

Another mistake is claiming the full cost of broadband when the broadband is used personally as well. HMRC expects a fair apportionment. If your broadband costs £30 per month and you use it 60% for business, claim 60%.

Some directors claim actual costs without keeping any records. If HMRC opens a compliance check, you need to show your calculation and the source bills. Keep a spreadsheet and save PDFs of your bills.

Finally, some directors pay the home office allowance directly from the company bank account to their personal account without going through payroll. This is technically a director's loan, not a tax-free reimbursement. Process it through your payroll software to keep it clean.

How to Process the Claim Through Payroll

If you use payroll software like Xero, FreeAgent, or BrightPay, you process the home office allowance as a non-cash benefit or a reimbursement of expenses. Most software has a specific category for "homeworking arrangements" or "working from home allowance."

The payment is not subject to tax or NI. You do not need to report it on a P11D. You do need to include it in your payroll records so HMRC can see the payment was made under the homeworking rules.

If you do not use payroll because you take only dividends, you still need to set up a payroll for this purpose. It takes ten minutes. Our director pay and dividends guide explains how salary and dividends work together.

What About Rent or Mortgage Interest?

If you own your home, you cannot claim rent. You can claim a proportion of mortgage interest, but only if the room is used exclusively for business. If the room doubles as a guest bedroom, HMRC will expect a time-based apportionment, which reduces the claim significantly.

If you rent your home, you can claim a proportion of your rent based on the same room-and-time apportionment. Keep a copy of your tenancy agreement as evidence.

Council tax can also be apportioned. If your office represents 15% of your home, 15% of your council tax bill is claimable.

Is It Worth Claiming?

For most directors, the £312 flat rate is the simplest option. It saves your company around £60 in corporation tax at 19% or £78 at 25%. That is not life-changing, but it is straightforward and HMRC rarely challenges it.

If your actual costs are significantly higher, the actual cost method can save more. A director with a dedicated home office in a London flat paying high electricity and broadband costs might claim £800 to £1,000 per year. That saves the company £152 to £190 in corporation tax at 19%.

For most directors, the time spent calculating actual costs is not worth it unless the claim exceeds £500 per year. The flat rate is good enough.

What If You Work from a Co-Working Space?

If you rent a desk at a co-working space in the Northern Quarter or MediaCity, that is a separate business expense. You cannot claim home office costs for the same period if you also have a dedicated office elsewhere. HMRC will not allow a double claim.

If you work from home some days and a co-working space other days, you can claim home office costs for the days you work from home, but the flat rate is simpler. Just make sure you genuinely work from home regularly.

Claiming for Employees Who Work from Home

If your limited company has employees who work from home, you can reimburse them under the same rules. The £6 per week flat rate applies to them too. You do not need to report it on a P11D.

If an employee's actual costs exceed £6 per week, they can claim the higher amount through their self assessment tax return, but only if their employer does not reimburse them. You cannot both reimburse and let them claim.

Record Keeping Requirements

Keep a record of your home office claim in your company's expense records. If you use the flat rate, note the date and the amount paid. If you use actual costs, keep your calculation spreadsheet and copies of the bills you used.

Your company's corporation tax return (CT600) will include the home office expense as a deductible cost. The reimbursement appears in your payroll records. Both should match.

If you use accounting software like Xero or FreeAgent, categorise the payment as "homeworking expenses" or "staff welfare." Do not put it through as a director's loan or a dividend.

Our bookkeeping and compliance guide covers how to organise your records for year-end.

Final Verdict

Can I claim home office expenses through my limited company? Yes. Use the £6 per week flat rate if you work from home regularly and your costs are under £312 per year. Use the actual cost method if your costs are higher and you keep proper records. Process the payment through payroll. Keep your evidence.

The claim is modest but legitimate. Do not overclaim. Do not underclaim. Get it right and move on.

If your circumstances are more complex, perhaps because you use part of your home exclusively for business and have high utility costs, speak to your accountant. As ICAEW qualified accountants, we deal with these calculations regularly. Contact us if you need specific advice on your home office claim.