For UK company directors working from home, charging the company for the use of a home office is a tax-efficient way to extract funds. This is typically achieved through either a formal rental (lease) agreement or a more flexible license to occupy. While both methods allow the company to claim a corporation tax deduction, they have significantly different implications for the director’s personal tax position, particularly concerning Capital Gains Tax (CGT).
The Core Distinction: Exclusive vs. Non-Exclusive Use
The choice between a lease and a license hinges on one critical factor: exclusive possession.
- A Lease Agreement grants the company exclusive use of a specific part of the home (e.g., a dedicated office room). During the term of the lease, the director, in their personal capacity, cannot use that space. This creates a formal landlord-and-tenant relationship.
- A License to Occupy grants the company permission to use a space, but not exclusively. The director retains overall control and can use the room for personal activities outside of business hours (e.g., as a guest room or study in the evenings). This does not create a formal tenancy.
This distinction is the primary driver of the differing tax consequences.
Option 1: The Formal Lease (Rental Agreement)
Under this arrangement, the director acts as a landlord, and the company acts as a tenant.
Tax Treatment for the Company: The rent paid by the company is a deductible expense for Corporation Tax, provided the rent is set at a commercial, “arm’s length” rate. This reduces the company’s taxable profits, resulting in a tax saving of 19% to 25%. The arrangement must be supported by a formal lease document and approved by a board resolution.
Tax Treatment for the Director:
- Income: The rent received is classified as property income and must be declared on a Self Assessment tax return (form SA105). It is subject to income tax at the director’s marginal rate (20%, 40%, or 45%).
- Allowances & Deductions: The director can either claim the £1,000 tax-free property income allowance or deduct a proportion of actual household expenses against the rental income. Deductible expenses can include mortgage interest, council tax, utilities, insurance, and repairs.
- National Insurance: Rental income is not subject to National Insurance Contributions (NICs).
Significant Risks of a Lease Agreement:
- Loss of Principal Private Residence (PPR) Relief: This is the most substantial drawback. When the home is sold, the portion used exclusively for business will not qualify for PPR relief. This means a portion of the capital gain will be subject to CGT at the prevailing rates for residential property (currently 18% or 24%).
- Business Rates: The local council’s Valuation Office Agency (VOA) may assess the exclusively used business area for non-domestic business rates, creating an additional, ongoing liability.
- Administrative Burden: Requires a formal legal agreement, which may involve legal costs and adds a layer of compliance.
Option 2: The License to Occupy
This is a less formal arrangement granting the company permission to use a part of the home on a non-exclusive basis.
Tax Treatment for the Company: The license fee paid is a deductible expense for Corporation Tax, just like rent. The fee must still be commercially justifiable and represent a reasonable apportionment of the costs of the space being used for business purposes. A simple license agreement and board minute are required for documentation.
Tax Treatment for the Director:
- Income: The license fee is classified as miscellaneous income. It is subject to income tax at the director’s marginal rate.
- Allowances & Deductions: The director can claim the £1,000 tax-free trading and miscellaneous income allowance. Alternatively, if costs are higher, they can deduct expenses that are “wholly and exclusively” incurred in generating that income (i.e., an apportioned share of household running costs).
- National Insurance: License fees are not subject to NICs.
Key Advantages of a License Agreement:
- Preservation of PPR Relief: Because the business use is non-exclusive, the entire property typically remains eligible for full PPR relief upon sale, avoiding any CGT liability related to home office use.
- No Business Rates: Non-exclusive use of a room in a domestic property does not trigger a liability for business rates.
- Simplicity: The administrative and legal requirements are significantly lower than for a formal lease.
Calculating a Defensible Charge
Regardless of the method chosen, the amount charged to the company must be reasonable and based on actual costs. A common method is to calculate the total annual running costs of the home and apportion them based on the area used for business and the amount of time it is used.
- Costs to Include: Utilities (gas, electricity, water), council tax, home insurance, and cleaning. If using a lease, a proportion of mortgage interest can also be included.
- Apportionment: A typical method is to calculate the percentage of floor space the office occupies and then adjust for the proportion of time it is used for business.
Example: A home has total relevant running costs of £5,000 per year. The office occupies 10% of the floor space and is used for business 50% of the time. A reasonable charge might be £5,000 x 10% x 50% = £250 per year. The calculation must be logical and defensible under HMRC scrutiny.
If the licence fee charged to the company matches the director’s apportioned costs exactly, no income tax liability arises for the director (after deductions), while the company secures full corporation tax relief on the payment.
Summary: Which is More Tax-Efficient?
| Feature | Lease Agreement | License to Occupy |
| Company CT Deduction | Yes, if rent is at arm’s length. | Yes, if fee is a reasonable share of costs. |
| Director’s Income Type | Property Income | Miscellaneous Income |
| Director’s Tax-Free Allowance | £1,000 Property Allowance | £1,000 Miscellaneous Income Allowance |
| PPR Relief on Home Sale | Lost for the exclusive business portion. | Preserved in full. |
| Capital Gains Tax Risk | High. A CGT charge is likely on sale. | Minimal to None. |
| Business Rates Risk | Yes. The space can be assessed. | No. |
| Administration | Higher (formal lease required). | Lower (simple agreement sufficient). |
| NI Contributions | None | None |