Claiming Home Working Expenses: Practical Tax Guidance for Directors, Landlords, and the Self-Employed

With more people than ever running businesses from home—whether part-time or full-time—it’s essential to understand what home-working expenses can (and can’t) be claimed against tax.

This guide breaks down the current tax rules and practical strategies for company directors, self-employed individuals, and landlords, so you don’t miss out on legitimate tax reliefs.


🏡 Why Home-Working Expenses Matter

If you use part of your home wholly and exclusively for business purposes, you may be entitled to claim back a proportion of your household costs, helping reduce your tax bill.

But the rules differ depending on your business structure.


1. 👩‍💼 For Limited Company Directors (Including Owner-Managers)

If you work from home as a director, you can be reimbursed by the company or claim a deduction for certain home-related expenses—but only within specific HMRC rules.

✅ Option A: Flat Rate Method

HMRC allows a flat-rate payment of £6 per week (£312 per year) with no receipts required. This is the simplest method.

  • Can be paid to you tax-free by your company.
  • No need to justify actual costs.

✅ Option B: Reimbursement of Actual Costs

If you want to claim more than £6/week, you must:

  • Create a homeworking agreement with your company.
  • Keep detailed records of your bills.
  • Show how the costs relate to business use only (e.g., electricity, broadband, heating).

You can only claim the business portion of these costs, usually by apportioning by floor area and time spent.

🛑 Important: You cannot claim for expenses you would incur anyway (e.g., rent or mortgage interest), unless you charge the company rent under a formal agreement—doing so could have other tax implications (see below).

⚠️ Caution: Charging Rent to Your Own Company

  • Rent received by you is taxable personally (but you can deduct associated costs).
  • Could affect CGT private residence relief on your home when you sell it.
  • Best to seek tailored advice if considering this.

2. 👤 For the Self-Employed

If you’re self-employed and working from home, HMRC allows you to deduct a portion of your actual household costs, or use a simplified flat-rate method.

✅ Flat Rate Method (Simplified Expenses)

Based on hours worked from home per month:

Hours/month Monthly Flat Rate
25–50 hrs £10
51–100 hrs £18
101+ hrs £26

This doesn’t cover telephone/broadband — you can claim those separately if used for business.

✅ Actual Costs Method

You can apportion actual costs like:

  • Gas and electricity
  • Council tax
  • Water
  • Mortgage interest (not capital repayments)
  • Rent
  • Home insurance
  • Repairs to the work area

Use a reasonable method (e.g., divide by number of rooms or square footage, and adjust for business use time).

💡 Example:

If you use 1 of 5 rooms for business, for 40 hours/week, and total household bills are £3,000/year:

  • Step 1: £3,000 ÷ 5 rooms = £600
  • Step 2: Adjust for time spent = £600 × (40 hrs ÷ 168 hrs in a week) ≈ £143 deductible.

3. 🏘️ For Landlords

Generally, landlords cannot claim home-working expenses unless they perform substantial business admin from home (e.g., managing multiple properties).

You may be able to claim:

  • A proportion of stationery, phone, internet, and utility costs.
  • Costs related to a home office used solely for managing lettings (especially if managing your own portfolio and not using an agent).

🛑 However, HMRC is strict—claims must be reasonable, evidenced, and wholly for business.

If you’re letting a single property, claims for home use are unlikely to be accepted.


📌 What You Cannot Claim

Regardless of structure, you cannot claim for:

  • Entire mortgage payments (capital portion)
  • Food and drink
  • Clothing (unless it’s protective or branded)
  • Expenses for dual-purpose use (unless you can show exclusive business use)

💼 Best Practices for Claiming Home Expenses

  • Keep accurate records of bills and usage.
  • Separate personal and business use where possible.
  • Revisit your claim method annually—especially if your usage changes.
  • Use a formal agreement if your company is reimbursing costs.

📣 Final Tip: Avoid CGT Pitfalls

If you claim part of your home as exclusively for business use, you may lose part of your Capital Gains Tax Private Residence Relief when selling.

➡️ Tip: Always keep some personal use (e.g., using the space occasionally for home activities) to avoid this.


🤝 How Merranti Accounting Can Help

Whether you’re self-employed, a director, or a landlord managing properties from home, our team can help you:

  • Choose the most tax-efficient claim method
  • Prepare proper documentation
  • Maximise your reliefs while staying compliant with HMRC

Contact us today to review your setup and make sure you’re not leaving tax savings on the table.


Merranti Accounting – Practical Advice. Proven Savings.