If you are renting a commercial space as a small business, adapting the property to suit your operational needs is often unavoidable. Any change or upgrade you make to improve the rented property is formally known as a leasehold improvement — and understanding how to handle it from an accounting standpoint is essential for maintaining accurate financial records.
At Accofirm, we believe every business owner deserves clear, practical guidance on topics like this. This comprehensive guide covers everything you need to know: what leasehold improvements are, how they are amortised, and how to record and account for them correctly.
What Are Leasehold Improvements?
Also known as tenant improvements, leasehold improvements refer to the changes, additions, or fittings made to a rental property based on the specific requirements or needs of the tenant. These modifications transform a generic commercial space into one tailored to a particular business operation.
Such improvements are typically carried out by either the tenant or the landlord, though in most cases they are paid for or financed by the tenant. The useful economic life or expected lifespan of these improvements is generally between 5 and 10 years, which directly affects how amortisation or cost allocation is calculated over the economic life or duration of the rented space.
At Accofirm, we regularly help small business owners navigate these exact calculations with confidence.
Types of Leasehold Improvements
Leasehold improvements fall into several groups or categories, depending on the type of property, the business sector, and the individual tenant’s needs.
1. Structural Improvements
These involve permanent or long-term changes to the property’s internal structure or layout, such as:
- Installing or relocating walls and partitions
- Strengthening flooring to support heavy equipment
- Upgrading ceilings or staircases
Because structural improvements are fixed and cannot be removed or detached easily, and because they often increase or extend the property’s useful life, they may be subject to stricter depreciation rules.
2. Electrical and Mechanical Systems
Modern businesses frequently require more facilities or additional systems than the original property provides. Common improvements in this category include:
- Upgraded lighting systems
- Extra power sockets or data wiring
- Heating, ventilation, and air conditioning (HVAC) systems
- Enhanced security systems such as alarms, CCTV, or access control
These improvements directly support daily business activities and typically qualify as capital expenditure or long-term investment costs.
3. Interior Finishes and Fixtures
The most common type of leasehold improvement, these include:
- New flooring such as tiles or carpets
- Painting and plastering of walls
- Installing counters or reception desks
- Built-in cupboards or storage units
Even seemingly minor items qualify as improvements when they become permanent parts of the property and cannot be removed without causing damage.
4. Specialised Business Fit-Outs
Certain industries require highly customised or specially designed fit-outs, for example:
- Commercial kitchens in restaurants
- Treatment rooms in dental clinics or medical practices
- Changing rooms or shower areas in gyms
- Soundproofing for recording studios
These improvements are essential to the business model and often involve significant upfront costs that must be carefully managed on the balance sheet.
5. Accessibility and Compliance Upgrades
Some improvements are completed to ensure compliance or adherence with UK building regulations or health and safety requirements. These include:
- Installing wheelchair ramps or lifts
- Improved washroom or restroom facilities
- Fire protection systems
- Emergency exits
Even when legally required or mandatory, these modifications are still classified as leasehold improvements and are depreciated or amortised accordingly.
Leasehold Improvements vs Repairs: What Is the Difference?
A clear and important distinction exists between improvements and repairs — one that the team at Accofirm frequently helps clients understand:
- Improvements increase or enhance the value of a property. They are capitalised and depreciated over time.
- Repairs restore or fix the property to its original condition. They are deducted as an immediate expense.
Practical example:
- Replacing broken lights = repair (expensed immediately)
- Installing a completely new lighting system = improvement (capitalised and amortised)
Understanding this distinction helps ensure your financial records are accurate and compliant with HMRC guidelines.
Who Pays for Leasehold Improvements?
The party responsible for covering the cost of leasehold improvements depends on or is determined by the lease agreement. There are typically three arrangements:
Tenant-funded: The most common or usual situation. The tenant pays for the fit-outs and records them as leasehold improvements in their own accounts.
Landlord-funded: In some cases, landlords provide a fit-out allowance or financial contribution for initial improvements. Here, the landlord may capitalise or record the cost as part of the building’s value.
Shared costs: Occasionally, the cost of improvements may be shared or divided between the tenant and the landlord, depending on the terms or conditions of the lease agreement and the nature of the improvements involved.
If you are unsure how your specific arrangement should be recorded, Accofirm can help you determine the correct accounting treatment based on your lease terms.
Accounting for Leasehold Improvements: How Does It Work?
From an accounting point of view, leasehold improvements are treated as fixed assets or long-term assets rather than immediate expenses. This means you do not deduct or claim the entire cost at once. Instead, you record or list the cost on your balance sheet and spread it over the asset’s useful life or benefit period through depreciation or amortisation.
This treatment is important because it matches or aligns the cost of the improvement with the period during which you use or benefit from it, ensuring accurate and reliable profit reporting — a core principle the Accofirm team applies across all client accounts.
Are Leasehold Improvements Amortised?
Yes — improvements made to a rented property by a tenant are generally amortised or written off gradually, rather than depreciated in the traditional sense. This is because the tenant does not own or possess the property outright, and the improvements legally become part of the landlord’s building once installed.
The tenant only holds the right or permission to use those improvements for the length or duration of the lease.
Example: If a tenant signs a 10-year lease and installs partition walls with an expected useful life of 10 years, but the lease ends in 4 years, the cost must be amortised over 4 years — the shorter period. When the lease ends, the partitions remain with or under the ownership of the landlord.
The key rule: leasehold improvements are written off over the shorter of their useful life or the remaining lease term, unlike movable assets such as furniture or equipment, which are depreciated separately.
How to Account for Leasehold Improvements: Step-by-Step
The cost of leasehold improvements is recorded as assets or capital items during the lease period. The Accofirm team recommends following these steps to record them properly in your financial records:
Step 1: Create a new asset account on your balance sheet titled “Leasehold Improvements”, and set up a corresponding contra account named “Leasehold Improvement Depreciation” to monitor its depreciation over time. Refer to your accounting software’s guidelines for adding new accounts.
Step 2: Collect or combine all related costs associated with the improvement project into a single total figure.
Step 3: Enter the total cost into your accounting records. The standard journal entry involves debiting the asset account and crediting the bank, credit card, or payment account used to fund the work.
Step 4: The new asset will appear on your balance sheet throughout the year. At year-end, a portion of the cost is expensed or recognised as amortisation or depreciation.
Step 5: To record the periodic amortisation, debit the depreciation expense account and credit the leasehold improvement depreciation account.
By following these steps, you will maintain a clear record of the original cost or initial value of the improvements, while tracking your expenses and assets separately. It is also important to retain all receipts or invoices related to the improvements as evidence or proof for HM Revenue and Customs (HMRC) if required.
Once all entries are recorded, prepare a balance sheet and income statement to verify that your records are accurate and complete. For additional guidance on this process, visit Accofirm for expert accounting insights tailored to small businesses.
What Happens to Leasehold Improvements When You Move Out Early?
If you vacate the property before the lease ends, the improvements normally remain with or transfer to the landlord and cannot be taken away or removed.
From an accounting perspective, any remaining net book value must be written off or removed through your profit and loss account.
Example:
- You spent £50,000 on fit-outs
- You have already depreciated £30,000
- The remaining £20,000 carrying value is written off when you move out
This is recognised as a loss on disposal in your financial statements. The Accofirm team can guide you through this write-off process to ensure it is handled correctly and does not distort your profit reporting.
What Happens When the Lease Expires?
At the end of the lease period, leasehold improvements usually revert or transfer back to the landlord. Depending on the terms and conditions of the lease and applicable legislation, the leaseholder may have options to:
- Purchase the freehold
- Renew the tenancy agreement
- Extend the lease under negotiated terms
It is advisable to clarify these arrangements with your landlord in advance to avoid unexpected write-offs or financial surprises at the end of your lease term.
Final Thoughts
Leasehold improvements are the changes or upgrades made to a leased property to meet the needs or requirements of the tenant. Whether you are fitting out a retail unit, a medical clinic, or an office space, knowing how they are amortised, recorded, and treated on your balance sheet is vital for sound financial management.
With a solid understanding of accounting principles and the right accounting software, you can record and manage leasehold improvements properly — protecting your business finances and ensuring HMRC compliance every step of the way.
For more useful insights and expert guidance on accounting topics like this one, explore Accofirm — your go-to resource for practical, reliable accounting advice built for small businesses.