Why booking a tenant improvement allowance as a repair expense distorts your P&L

A $25,000 tenant improvement allowance posted to repairs expense made one month look like a $21,800 loss. Here is the correct way to book it.

A commercial real estate investor we work with signed a new tenant for a vacant storefront in March. To close the deal, he agreed to pay $25,000 toward the tenant’s buildout. The contractor finished the work, the landlord paid the bill, and the bookkeeper categorized it as “Repairs and Maintenance.”

When the March Profit and Loss report (P&L) came in, that property showed a net operating income of negative $21,800. The landlord called us certain the deal had been a mistake.

The deal was fine. The bookkeeping was wrong.

What a tenant improvement allowance actually is

A tenant improvement allowance (TIA) is money a landlord pays to make a space ready for a specific tenant: new flooring, upgraded electrical, custom partitions, HVAC adjustments. These are not repairs. Repairs restore something that was already there. A TIA creates something new, and the physical improvements typically remain in the building when the lease ends.

Because the landlord owns what was built, the cost belongs on the balance sheet as an asset, not on one month’s P&L as an expense.

The contractor payment is a capital expenditure, not a repair. When the $25,000 check is written, it moves from the bank account to a leasehold improvement asset account. The balance sheet reflects a new asset. Nothing hits the P&L that day.

The cost is recovered through amortization over the lease term. Amortization is spreading the cost of a long-life asset over the years it is used. On a 5-year (60-month) lease, a $25,000 TIA amortizes at $417 per month. That $417 appears on the P&L each month as an operating expense. The full $25,000 never concentrates in a single month.

The lease term sets the amortization period. If the lease is 3 years, the TIA amortizes over 36 months. If the lease is 10 years, over 120 months. Renewal options do not extend the amortization period unless the tenant has already exercised the renewal and signed an extension.

Early termination requires a write-off. If the tenant leaves at month 24 of a 60-month lease, the remaining book value ($25,000 minus 24 months of $417 equals $14,992) is written off in the month of departure. That write-off is a one-time loss, separate from normal operating expenses.

What the numbers looked like side by side

The storefront rented for $3,200 per month. Here is what the P&L showed under each treatment.

Item	Repairs (wrong)	Leasehold improvement (correct)
Rent received	$3,200	$3,200
TIA cost recognized in March	($25,000)	($417)
March net operating income	($21,800)	$2,783
Monthly TIA expense, April through month 60	$0	($417)
Total TIA expense over 5 years	($25,000)	($25,000)

The total cost is identical under both treatments. What changes is timing. One method drops the entire cost into a single month. The other spreads it evenly across the lease, which is the period during which the landlord benefits from what was built.

Why this matters for property-level reporting

Three specific problems develop when TIAs are recorded as expenses.

Per-property performance data is not comparable across months. A landlord reviewing monthly income figures sees a large loss in March. That March number is not comparable to February, April, or any future month, because $25,000 of cost from a one-time event is embedded in it. A portfolio review that includes March will produce a distorted picture of how that property is performing relative to its history and to the rest of the portfolio.

The building’s book value is understated. When TIA costs are expensed rather than capitalized, the improvements never appear on the balance sheet. The building’s reported value does not reflect the capital invested in it. If the investor is using the books to assess equity position or prepare for a refinance review, the understated asset value misrepresents the portfolio.

Cross-property comparisons become unreliable. A property that signed a new tenant in the current year will look worse than one that did not, regardless of underlying operating performance. An investor comparing net operating income across three properties may draw conclusions based on a month that includes a large non-recurring capital payment rather than on actual operating margins.

What correct TIA bookkeeping looks like

For commercial property clients, we create a leasehold improvement asset record at the time of payment. The record includes the property address, the tenant name, the lease start date, and the original TIA amount. The amortization period matches the initial lease term.

Each month, the books run a $417 amortization entry automatically. The entry reduces the asset’s book value and posts an expense to the P&L. The property owner sees a consistent, comparable monthly net operating income figure that reflects ongoing operations rather than lumpy capital activity.

When a lease renews, we review the remaining book value and adjust the amortization period to reflect the new term. When a tenant vacates, we calculate any remaining book value and write it off in the month of departure.

Best practices for landlords with TIA activity

Create one leasehold improvement asset account per property rather than a single pooled account for the portfolio. Tracking by property lets you see each asset’s remaining book value and match it to the correct lease expiration.
Set the amortization period to the initial lease term at signing. Do not add unexercised renewal options to the period.
Keep a copy of the executed lease attached to the asset record. The lease term governs the amortization schedule, and having it accessible avoids errors during future reviews.
Confirm in writing that improvements revert to you at lease end. If the tenant owns the improvements and will remove them on departure, the asset may not belong on your balance sheet.
Run a leasehold improvement schedule quarterly: each property, original TIA amount, date placed in service, amortization period, accumulated amortization to date, remaining book value, and remaining lease term. Mismatches between remaining book value and remaining lease months are a flag worth investigating.

Three questions worth asking

Where in the current books does a TIA payment get recorded? Is it going to an asset account or an expense account?
For each commercial property, what is the current book value of leasehold improvements, and how does that compare to the remaining months on each lease?
If a tenant has already vacated a space, was any remaining TIA book value written off at the time of departure?

If those answers are unclear, some portion of your property-level net operating income may be distorted by improvement costs recorded in the wrong period, and some assets may be absent from your balance sheet entirely. The fix is a bookkeeping adjustment, not a full accounting rebuild.

If you own commercial real estate and want to check how your books are handling lease-related improvements, send us your most recent balance sheet and the last 12 months of P&L for each property. We can show you whether the numbers are correct and what needs adjusting.