To account for a tenant improvement allowance under ASC 842, first determine who owns the improvements for accounting purposes. If the tenant controls the finished buildout, the allowance is a lease incentive that reduces the right-of-use (ROU) asset at commencement, while the construction costs are capitalized separately as leasehold improvements and depreciated over the shorter of their useful life or the lease term. If the landlord owns the improvements, the tenant does not capitalize them at all, and the allowance functions as the landlord funding its own property. Every entry that follows depends on that ownership call.
Who Owns the Improvements
Physical possession of the space is not the test. ASC 842 asks whether the tenant has the right to control the use of the improvements and receive substantially all of their economic benefit over the lease term.1FASB (Financial Accounting Standards Board). ASU 2016-02 Section A
Two lease clauses usually settle the question. If the lease requires the tenant to remove the improvements at the end of the term, the tenant is almost certainly the accounting owner. The same is true if the tenant has the right to use the improvements for the full lease term without compensating the landlord for any remaining value.1FASB (Financial Accounting Standards Board). ASU 2016-02 Section A Where neither condition is present, the improvements are more likely a landlord asset, and the allowance is not a lease incentive to the tenant.
ASC 842 anchors this analysis to the enforceable terms and conditions in the lease itself rather than the broader economic-substance analysis used under the prior standard.2Financial Accounting Standards Board. Accounting Standards Update 2023-01 – Leases (Topic 842): Common Control Arrangements Read the lease carefully before you touch the ledger.
How the Allowance Reduces the ROU Asset
Assuming the tenant owns the improvements, the allowance is a lease incentive. ASC 842 sets the initial ROU asset equal to the lease liability, plus any initial direct costs and prepayments, minus any lease incentives received.1FASB (Financial Accounting Standards Board). ASU 2016-02 Section A The allowance slots into that last category. A larger allowance produces a smaller ROU asset, which produces lower amortization expense over the lease term.
The allowance does not touch the lease liability. The liability reflects the tenant’s obligation to make future lease payments, which the allowance does not change. The offset lands only on the asset side.
Journal Entries When Cash Arrives at Commencement
When the landlord pays the allowance at or before the lease start date, the entries are straightforward. Debit leasehold improvements for the full construction cost. Credit cash or accounts payable for the amount the tenant paid out of pocket. Credit the ROU asset for the portion covered by the allowance.
A worked example: a 10-year lease with a $150,000 allowance paid at signing, and a $220,000 construction bill. Capitalize the full $220,000 as leasehold improvements. Reduce the ROU asset by the $150,000 allowance. The remaining $70,000 comes from the tenant’s cash. The full $220,000 sits in the leasehold improvements account and depreciates together.
Allowances Received After Commencement
Many leases work as reimbursements: the tenant pays for construction upfront and submits invoices to the landlord weeks or months later. That timing gap changes the mechanics. At commencement, measure the ROU asset and lease liability based on the incentive the tenant expects to receive. When the cash actually arrives, debit cash and credit the ROU asset to catch up to the economics of the deal.
The picture gets more complex when the allowance is contingent on costs the tenant has not yet incurred. ASC 842 does not prescribe a single approach. Acceptable methods include estimating at commencement any amounts reasonably certain to be incurred, or treating the reimbursement as a lease modification that adjusts the ROU asset and liability when the qualifying costs are spent. Whichever method the tenant selects should be applied consistently as an accounting policy across similar leases.
Running Two Amortization Schedules
After the initial entries, two schedules run in parallel. The leasehold improvements depreciate over the shorter of the asset’s useful life or the remaining lease term, typically straight-line. A $220,000 buildout on a 10-year lease with no shorter useful life produces $22,000 of annual depreciation.
The reduced ROU asset amortizes separately as part of total lease cost over the lease term. Because the allowance lowered the ROU asset at inception, periodic lease expense is lower than it would have been without the incentive. The benefit spreads evenly across the lease rather than hitting the income statement all at once.
The two lines do not merge. Leasehold improvement depreciation runs through depreciation expense. ROU asset amortization runs through lease expense. Same physical buildout, different income statement lines.
Overages and Unspent Funds
Construction rarely lands exactly on budget.
When the buildout costs more than the allowance, the excess is the tenant’s responsibility. Capitalize the additional costs as leasehold improvements alongside the landlord-funded portion, and depreciate them on the same schedule. Using the earlier numbers, a $150,000 allowance against a $220,000 buildout puts the full $220,000 in the fixed asset account. There is no separate treatment for the overage.
Unspent funds work differently. Most commercial leases include a deadline, sometimes called a sunset date, by which the tenant must submit reimbursement requests. Anything not spent or claimed by that date is forfeited. A tenant cannot record a lease incentive for money it never received. If the full allowance was estimated at commencement but a smaller amount was ultimately received, adjust the ROU asset and lease liability to reflect the actual amount, with the difference running through lease expense as a catch-up.
Early Lease Termination
Ending a lease before its scheduled expiration triggers an immediate accounting event. Any remaining unamortized balance of the leasehold improvements is written off as a loss in the period of termination. A $220,000 buildout depreciated down to $88,000 at termination produces an $88,000 write-off. The improvements have no future economic benefit once the tenant no longer occupies the space.
The ROU asset and lease liability are also derecognized. Any difference between their carrying amounts at the termination date runs through the income statement. A buyout payment negotiated with the landlord factors into the gain or loss calculation. Early terminations can produce a significant one-time hit to earnings.
Federal Tax Treatment
The GAAP treatment above and the federal income tax treatment run on separate tracks. Under the Internal Revenue Code, a tenant improvement allowance can be excluded from the tenant’s gross income, but only if it qualifies under Section 110, which is narrower than many tenants expect.
Section 110 applies only to short-term leases of retail space where the allowance funds construction of qualified long-term real property that reverts to the landlord when the lease ends.3Office of the Law Revision Counsel. 26 USC 110 – Qualified Lessee Construction Allowances for Short-Term Leases Three terms carry specific definitions:
- Short-term lease: 15 years or less.
- Retail space: Property used for selling goods or services to the general public.
- Qualified long-term real property: Nonresidential real property that is part of the retail space and reverts to the landlord at lease end. Movable equipment and personal property do not count.4eCFR. 26 CFR 1.110-1 – Qualified Lessee Construction Allowances
Office users, warehouse operators, and manufacturers fall outside Section 110. In those cases, the IRS treats the allowance as a rent reduction rather than excludable income, which shifts the timing and character of deductions without typically creating a lump-sum taxable event.
The lease itself must expressly state that the allowance is for constructing or improving qualified property at the retail space. Without that language, the exclusion is unavailable even if every other condition is met. The tenant also has to spend the full amount on qualifying improvements; any portion not spent within 8½ months after the close of the tax year in which it was received loses the exclusion.4eCFR. 26 CFR 1.110-1 – Qualified Lessee Construction Allowances
Depreciation of the Finished Improvements
Whether or not the allowance is excluded from income, the finished improvements still need to be depreciated for tax purposes. Interior improvements to nonresidential buildings generally qualify as qualified improvement property (QIP), which carries a 15-year recovery period under the Modified Accelerated Cost Recovery System.5Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System For property placed in service in 2026, 100% bonus depreciation is available, allowing the full cost to be deducted in the year the improvements go into service. That compares with a 39-year recovery period for the building shell.
GAAP and tax depreciation will almost always differ. Financial statements use the shorter-of-useful-life-or-lease-term rule; the tax return uses the 15-year QIP period, or an immediate deduction if bonus depreciation applies. The gap creates a temporary difference that flows through deferred tax accounts and needs to be tracked separately.
Documentation to Keep
The fully executed lease is the starting point, because it establishes the allowance amount, any reimbursement conditions, the sunset date, and the ownership provisions that drive the control analysis. Itemized general contractor invoices provide the cost breakdown, and signed subcontractor lien waivers confirm payment before reimbursement is requested from the landlord.
Internal workpapers should include a schedule reconciling total construction costs to the landlord’s contribution and the tenant’s out-of-pocket spend. Journal entries should reference the specific lease identification number and construction project code so an analyst can trace from the balance sheet back to the underlying contract. If the allowance was received in installments, a timeline of each receipt date and its corresponding entry prevents period-matching errors.
For tax purposes, retain the lease language that ties the allowance to qualified construction, along with proof that the funds were spent within the required time frame. Those records support the Section 110 exclusion where it applies and provide the basis for the QIP depreciation deduction.