Closing costs are tax deductible for a business, but rarely all at once. Most line items on a commercial settlement statement either get added to the property’s cost basis and recovered through depreciation over 39 years, or get spread across the life of the loan as amortized interest. Only a narrow set of charges, chiefly your prorated share of real estate taxes and the per diem interest between closing and your first payment, can be written off in the year you pay them.
Sorting each fee into the right bucket is the whole exercise. Get it wrong and you either overstate current deductions or understate the basis you’ll use to calculate gain when you sell.
The Three Buckets Every Closing Cost Falls Into
The IRS treats closing costs three different ways depending on what the money paid for.
Acquisition costs are fees tied to buying the property itself: title search fees, owner’s title insurance, legal fees for the purchase contract and deed, recording fees, surveys, and transfer taxes. These get added to the property’s cost basis.1Internal Revenue Service. Publication 551, Basis of Assets
Financing costs are fees tied to getting the loan: origination fees, points, underwriting charges, commitment fees, mortgage broker commissions, and any appraisal the lender required as a condition of funding. These get spread across the loan term.
Current expenses are the small group of items that would be deductible for your business whether or not you were buying property. These you deduct the year you pay them.
One rule cuts across all three categories: the purpose of the fee controls the treatment, not its name. An appraisal ordered to establish fair market value for the purchase is an acquisition cost. The same appraisal, if the lender required it to underwrite the loan, is a financing cost. Who required it, and why, is the test.
Acquisition Costs: Capitalized and Depreciated
Federal tax law bars an immediate deduction for amounts paid toward new buildings or permanent improvements to property.2Office of the Law Revision Counsel. 26 USC 263 – Capital Expenditures Instead, every closing-table fee that was necessary to complete the purchase is added to the property’s cost basis and recovered through annual depreciation.
Nonresidential commercial property depreciates straight-line over 39 years.3Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System So $50,000 in capitalizable closing costs on a $1,000,000 warehouse purchase builds a depreciable basis of $1,050,000 and produces roughly $1,000 extra in annual depreciation. The full basis gets reported on Form 4562 and carried forward from there.4Internal Revenue Service. Instructions for Form 4562
Zoning fees paid to change the classification of a parcel you’re acquiring also go into basis rather than current expense.1Internal Revenue Service. Publication 551, Basis of Assets Environmental assessments and engineering reports ordered to complete the deal follow the same logic.
Capitalization isn’t a lost deduction. The higher basis cuts your taxable gain when you eventually sell. It just means you recover the cost slowly.
Financing Costs: Amortized Over the Loan
Costs a business pays to secure a loan are treated as debt issuance costs. They are capitalized and then deducted over the term of the debt, not the life of the property, and the deduction shows up as an interest expense on your return.5eCFR. 26 CFR 1.446-5 – Debt Issuance Costs
A $20,000 origination fee on a 10-year commercial mortgage produces about $2,000 per year in deductible interest, separate from and in addition to the depreciation you’re taking on the building itself. Technically the IRS requires a constant-yield allocation, but when the fee is small relative to the loan balance, straight-line gets to nearly the same number.5eCFR. 26 CFR 1.446-5 – Debt Issuance Costs
Points deserve a specific note. The immediate-deduction rule people associate with points is written for debt secured by a taxpayer’s principal residence and does not reach commercial transactions.6Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction For a business, points are prepaid interest and get amortized along with the other loan fees.
What You Can Deduct in the Year of Closing
Two items on a typical commercial settlement statement produce an immediate deduction.
Your Prorated Share of Real Estate Taxes
Real property taxes are deductible by a business in the year paid or accrued.7Office of the Law Revision Counsel. 26 USC 164 – Taxes The settlement statement splits the annual bill between buyer and seller based on the closing date. The portion covering the period after closing is yours to deduct as a current expense.
Watch the direction of the credit. If you pay taxes the seller actually owed and the seller does not reimburse you, that amount goes into your basis rather than onto your current return. If you reimburse the seller for taxes already prepaid on your behalf, you can deduct that amount in the year of purchase.1Internal Revenue Service. Publication 551, Basis of Assets
Per Diem Interest
Per diem interest is the interest that accrues from your closing date to the date of your first mortgage payment. Because it covers borrowed money for a period that has already passed, it’s a true current expense rather than a prepayment, and it’s deductible in the year you pay it.8Internal Revenue Service. Rental Expenses
Refinancing Can Accelerate Old Deductions
Closing costs on a refinance follow the same amortization rule as any other financing cost: 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 unamortized costs from the old loan. If the refinance fully pays off the original debt, any leftover financing costs from that loan can be deducted in full in the year of the refinance. If the original loan still carried $5,000 in unamortized fees, that entire $5,000 becomes a current-year deduction. The same accelerated write-off applies if you simply pay the loan off early with cash.
The immediate deduction only works when the old debt is truly extinguished. If the lender restructures, extends, or modifies the existing loan rather than replacing it, the unamortized costs continue on their original schedule, usually rolled into the revised term.
Prepayment penalties are treated as additional interest and are generally deductible the year you pay them. So a refinance can stack three deductions into the same year: the prepayment penalty, the unamortized fees from the old loan, and the first year of amortization on the new loan.
When a Deal Falls Through
Money spent on due diligence, legal work, and inspections for a purchase that never closes doesn’t just disappear. When a transaction is abandoned, the related costs 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 purchase, like title work, legal drafting, and forfeited deposits, become deductible when the transaction is formally abandoned.
Documentation matters. The record needs to show the deal was genuinely abandoned, not paused. If you later acquire a similar property from the same seller, the IRS may argue the costs were transferred to the new deal and should be capitalized into that property’s basis instead.
A Trap for Brand-New Entities
If your business doesn’t exist yet when you start incurring acquisition costs, a different rule applies. Costs paid to investigate or create a new business are classified as startup expenditures, and no immediate deduction is allowed for them.10Office of the Law Revision Counsel. 26 USC 195 – Start-Up Expenditures
You can elect to deduct up to $5,000 of startup costs in the year the business begins operating, but that allowance phases out dollar-for-dollar once total startup costs exceed $50,000. Anything left over is amortized over 180 months starting in the month the business opens.10Office of the Law Revision Counsel. 26 USC 195 – Start-Up Expenditures
Two carve-outs soften this. Interest deductible under Section 163 and real estate taxes deductible under Section 164 are excluded from the startup rules and keep their normal treatment even for a brand-new business.10Office of the Law Revision Counsel. 26 USC 195 – Start-Up Expenditures Costs that must be capitalized into the property’s basis (title insurance, surveys, transfer taxes) also follow the normal rules regardless of entity age. The trap mainly catches investigation and professional fees that an existing business could deduct currently but a new entity cannot.
Seller Concessions Reduce Your Basis
When the seller agrees to cover a share of the buyer’s closing costs, those costs are no longer yours to capitalize. The effective purchase price drops, and so does your depreciable basis.
The reverse direction also appears on settlement statements. Amounts the seller actually owes that you agree to pay, like back taxes, recording fees, or repair charges, get added to your basis.1Internal Revenue Service. Publication 551, Basis of Assets
Every dollar of seller concession that reduces your capitalized costs also reduces the depreciation you’ll claim over the next 39 years. A $10,000 seller credit at closing costs you roughly $256 per year in lost depreciation deductions. The cash saves you now; the deduction doesn’t come back.
How to Classify a Fee You’re Not Sure About
The settlement statement is the source document. Every line gets assigned to one of the three categories before you file. When a fee could plausibly fit either acquisition or financing, ask who required it: if the lender required it as a condition of funding, it’s a financing cost; if it was needed to transfer clean title regardless of how the deal was financed, it’s an acquisition cost.
Keep separate tracking for each category. For capitalized costs, keep the settlement statement and tie the figures to your Form 4562 depreciation schedule. For financing costs, maintain an amortization schedule per loan showing the annual deduction and remaining unamortized balance, and update it the year you refinance or pay off the loan. Multiple loans with overlapping terms get easy to confuse, and a missing schedule is how deductions get lost or claimed in the wrong year.