Some closing costs a business pays when buying commercial property are tax deductible right away, but most are not. The IRS sorts each fee on the settlement statement into one of three buckets: costs added to the property’s basis and recovered through depreciation over 39 years, costs amortized as interest over the life of the loan, and a narrow group of items that can be deducted in full the year you pay them. Getting each line into the correct bucket is where the whole answer lives.
The Three Buckets Every Closing Cost Falls Into
The settlement statement mixes fees together, but the tax code treats them very differently depending on what each one paid for.
- Acquisition costs pay for transferring the property itself: title insurance, legal fees for the purchase contract and deed, surveys, recording fees, and transfer taxes. These are added to the property’s cost basis and recovered through annual depreciation.
- Financing costs pay for getting the loan: origination fees, points, underwriting charges, commitment fees, and mortgage broker commissions. These are spread over the loan term as amortized interest expense.
- Current expenses are the small group of items that would be deductible whether or not you were buying property, like your prorated share of real estate taxes. These come off your taxes in the year you pay them.
A useful test when a fee is ambiguous: look at who required it. If the lender required it as a condition of funding, it belongs with the financing costs. If it was needed to transfer clean title regardless of how the deal was financed, it’s an acquisition cost. An appraisal ordered to set the purchase price gets capitalized into basis, while a lender-required appraisal gets amortized with the loan fees. Same type of fee, different bucket, driven entirely by purpose.
Costs Added to the Property’s Basis
Federal tax law prohibits an immediate deduction for amounts paid toward new buildings or permanent improvements to property.1Office of the Law Revision Counsel. 26 USC 263 – Capital Expenditures Every closing cost that was necessary to complete the purchase gets rolled into the property’s cost basis instead. The IRS specifically identifies title search fees, owner’s title insurance premiums, legal fees for preparing the purchase contract and deed, recording fees, surveys, and transfer taxes as settlement fees that belong in basis.2Internal Revenue Service. Publication 551, Basis of Assets Zoning costs get capitalized too, as do environmental site assessments and engineering reports ordered to complete the purchase.
Capitalization is slow money back. Nonresidential commercial property is depreciated straight-line over 39 years.3Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System So $39,000 in capitalized closing costs produces about $1,000 in depreciation each year for nearly four decades. The higher basis also reduces your taxable gain when you eventually sell.
Take a business buying a warehouse for $1,000,000 with $50,000 in capitalizable closing costs (title insurance, legal fees, transfer taxes, and surveys). The depreciable basis becomes $1,050,000, and the business reports that total on IRS Form 4562 as the starting point for annual depreciation.4Internal Revenue Service. Instructions for Form 4562
Costs Amortized Over the Loan
Fees your business paid to secure the loan are treated as debt issuance costs. They’re capitalized, but then deducted over the term of the debt as interest expense on the business return, whether that’s Form 1120 for a corporation, Form 1065 for a partnership, or Schedule C for a sole proprietor. The IRS technically calls for a constant-yield method, but when the fees are small relative to the loan balance, a straight-line calculation lands in nearly the same place.5eCFR. 26 CFR 1.446-5 – Debt Issuance Costs
A $20,000 origination fee on a ten-year commercial mortgage produces roughly $2,000 in deductible interest each year, on top of the property’s depreciation deduction.
Early payoff is where these costs become interesting. If the business retires the loan after three years, it has deducted about $6,000, and the remaining $14,000 in unamortized costs can generally be written off in full the year the loan is extinguished. That accelerated deduction depends on the debt actually being retired. If the lender just modifies the rate or extends the term, the remaining costs keep amortizing on the revised schedule.
Closing Costs You Can Deduct This Year
A short list of items on the settlement statement qualifies for immediate deduction because they represent ordinary business expenses that stand on their own regardless of the property purchase.
Prorated Real Estate Taxes
Real property taxes are deductible in the year paid or accrued.6Office of the Law Revision Counsel. 26 USC 164 – Taxes The settlement statement divides the annual tax bill between buyer and seller based on the closing date, and your share of the taxes covering the period after closing is a current expense.
Watch the direction of the credit. If you pay real estate taxes the seller actually owed and the seller does not reimburse you, those taxes get added to your basis instead of deducted. If you reimburse the seller for taxes the seller prepaid on your behalf, you can deduct that reimbursement in the year of purchase.2Internal Revenue Service. Publication 551, Basis of Assets
Per Diem Interest
The interest that accrues between your closing date and your first mortgage payment is a real current expense. It’s interest on money you’ve already borrowed, for a period that has already passed, so it’s deducted in the year paid.7Internal Revenue Service. Rental Expenses
Why Points Don’t Qualify
Points paid on a commercial loan cannot be deducted in the year paid. The immediate-deduction exception for points is written specifically for debt secured by a taxpayer’s principal residence, and it does not extend to commercial transactions.8Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction For a business, points are prepaid interest and amortize with the rest of the financing costs.
How Seller Concessions Change the Math
When the seller pays some of your closing costs, the effective purchase price drops, and so does the depreciable basis you get to build up. If the seller absorbs costs that would normally increase your basis, those costs are no longer yours to capitalize. IRS Publication 551 also notes the reverse: amounts the seller owes that you agree to pay, such as back taxes, recording fees, or repair charges, get added to your basis.2Internal Revenue Service. Publication 551, Basis of Assets
The trade-off is worth doing the arithmetic on. A $10,000 seller credit toward your closing costs helps cash at the table, but it costs you roughly $256 per year in depreciation deductions over the next 39 years.
What Happens When You Refinance
The closing costs on a refinance follow the same amortization rules as any other financing fees: origination charges, points, and lender-required appraisals get spread over the new loan’s term. A $15,000 fee on a new 15-year loan produces roughly $1,000 per year in deductible interest.
The more valuable event is what happens to the leftover costs from the old loan. If the refinance completely pays off the original debt, any unamortized financing costs from that old loan can be deducted in full the year of the refinance. If $5,000 remains unamortized on the old loan, that entire $5,000 becomes a current-year deduction. This only works if the old debt is fully extinguished. A restructuring, extension, or modification of the existing loan rolls the old unamortized costs into the new schedule instead.
Prepayment Penalties
Many commercial loans charge a prepayment penalty when you pay off the balance ahead of schedule, whether by refinance or by selling the property. The IRS treats prepayment penalties as additional interest, generally deductible in the year paid. Combined with the write-off of any remaining unamortized financing costs from the old loan, the year of a refinance or early payoff can produce a meaningful one-time reduction in taxable income.
Deals That Never Close
Money you spent on due diligence, legal work, and inspections for a purchase that fell through does not just vanish for tax purposes. When a transaction is formally abandoned, the costs incurred in connection with the deal may be deductible as a loss.9Office of the Law Revision Counsel. 26 USC 165 – Losses Early-stage investigation expenses like market research and feasibility work are typically deductible as ordinary business expenses regardless of whether the deal closes. Costs incurred specifically to facilitate the acquisition, like title work, legal drafting, and forfeited deposits, become deductible when the deal is abandoned.
Documentation matters here. You need to establish that the transaction was genuinely abandoned, not just paused or restructured. If you later acquire a substantially similar property from the same seller, the IRS may argue the costs were simply carried into the new deal and should be capitalized into that property’s basis.
If the Business Doesn’t Exist Yet
If you’re forming a new entity to buy the property, some of these costs get caught by the startup expenditure rules. No immediate deduction is generally allowed for costs paid while investigating or creating a new business. A business can elect to deduct up to $5,000 of startup costs in the year operations begin, but that allowance phases out dollar-for-dollar once total startup costs exceed $50,000, and any remaining startup costs must be amortized over 180 months starting when the business opens.10Office of the Law Revision Counsel. 26 USC 195 – Start-Up Expenditures
Two carve-outs are worth knowing. Interest deductible under Section 163 and real estate taxes deductible under Section 164 are excluded from the definition of startup expenditures, so they keep their normal tax treatment even for a brand-new business. And costs that must be capitalized into the property’s basis follow the normal capitalization rules regardless of whether the business has begun operating.
Keeping the Records Straight
Because the three buckets have three different timelines, tracking has to be separate for each. Keep the settlement statement showing every fee added to basis, and tie those numbers to the depreciation schedule on Form 4562. For financing costs, maintain an amortization schedule for each loan showing the annual deduction and the remaining unamortized balance. When you refinance, update both the old and new schedules in the same year so the write-off of the old costs and the start of the new amortization both land where they should.
The settlement statement is the primary source document, and every line on it needs to be assigned to a bucket before you file. When a fee is ambiguous, come back to the purpose test: lender-required means financing, title-transfer means acquisition, and the small handful of ordinary expenses like prorated taxes and per diem interest are what actually come off this year’s return.