The capitalization of transaction costs turns on one question: would the cost have existed if the deal had not happened? If the answer is no, and the cost is tied to a specific asset you are acquiring, producing, or preparing for use, you add it to the asset’s carrying amount instead of running it through the income statement. If the answer is yes, or the cost is general overhead that would have been paid regardless, you expense it in the current period. Both US GAAP and IFRS build their rules around that incremental test, and the IRS enforces a parallel set of rules under Section 263(a) that can reach costs your books have already expensed.
The Incremental Test
IFRS 9 states the test plainly: a transaction cost qualifies for capitalization only if it would not have been incurred had the entity never pursued the deal.1IFRS Foundation. Classification of Incremental Expenses Costs that pass include commissions paid to brokers and agents, fees to outside legal counsel and advisors, regulatory levies, securities exchange fees, and transfer taxes. Costs that fail include internal administrative overhead, financing charges, and holding costs.
The salary of an in-house accountant who reviews acquisition paperwork does not qualify, because that person earns the same paycheck whether the deal closes or not. A commission paid to a third-party broker does qualify, because it exists only because the transaction happened.1IFRS Foundation. Classification of Incremental Expenses
US GAAP applies the same logic in the contexts where it addresses transaction costs directly. ASC 310-20, which governs loan origination, limits capitalizable amounts to incremental costs paid to third parties for the specific loan and the portion of employee compensation directly tied to specified origination activities such as evaluating the borrower, negotiating terms, and closing. General overhead and costs unrelated to a specific loan are expensed as incurred.
Treatment by Asset Class
Applying the incremental test is only the first step. What you do with a qualifying cost depends on what you are acquiring, and the differences are not minor. The same advisory fee can be capitalized on one deal and expensed on the next.
Property, Plant, and Equipment
Under ASC 360, the historical cost of a tangible asset includes every cost necessarily incurred to bring it to the location and condition for its intended use. Transportation fees, installation, site preparation, and testing all get folded into the asset’s carrying amount. Recovery happens through depreciation over the asset’s useful life.
Business Combinations
Mergers and acquisitions follow a counterintuitive rule. Under ASC 805, acquisition-related costs (finder’s fees, advisory and legal fees, accounting and valuation fees, even the cost of maintaining an internal acquisitions department) are expensed in the period incurred. They do not increase goodwill or the value of acquired assets. The one carve-out: costs to issue debt or equity securities as part of the deal are accounted for under their own standards, typically as a reduction of proceeds. The rule exists to keep advisory fees from being buried inside goodwill, where they would sit on the balance sheet indefinitely.
Financial Instruments
Under IFRS 9, treatment splits based on classification. Instruments measured at fair value through profit or loss expense their transaction costs immediately, because marking to market every period makes it pointless to embed historical acquisition costs in the carrying amount. Instruments measured at amortized cost or at fair value through other comprehensive income add transaction costs to the initial carrying amount, or subtract them from the initial proceeds for a liability.2IFRS Foundation. IFRS 9 Financial Instruments
Adding costs to the initial carrying amount changes the effective interest rate calculated at initial recognition, spreading the cost impact across every period until maturity rather than hitting earnings at once.3IFRS Foundation. Amortised Cost Measurement and the Effective Interest Method
Debt Issuance Costs
Since ASU 2015-03, debt issuance costs (underwriting fees, legal costs, registration expenses) are no longer shown as a separate asset. They are presented as a direct deduction from the face amount of the related liability, the same way a debt discount reduces carrying value. The costs are amortized over the life of the debt using the effective interest method.
Leases
Under ASC 842, initial direct costs of a lease, defined as incremental costs that would not have been incurred if the lease had not been obtained, are included in the initial measurement of the lessee’s right-of-use asset. Broker commissions and payments made to an existing tenant to vacate the space qualify. Fixed employee salaries, legal fees for negotiating terms, and general overhead do not, and must be expensed immediately.
Internal-Use Software
FASB overhauled software capitalization with ASU 2025-06, which removed references to the traditional preliminary project, application development, and post-implementation stages. Under the updated guidance, capitalization begins when management has authorized and committed to funding the project, and it is probable that the project will be completed and the software will perform its intended function.4FASB. Accounting for and Disclosure of Software Costs
The probable-to-complete threshold is not met when significant development uncertainty exists, which the standard describes as unproven technological innovations whose feasibility has not been confirmed through coding and testing, or significant performance requirements that have not been identified or keep changing substantially. Costs incurred during those uncertain phases are expensed as incurred.
The Tax Rules Are Separate
The IRS requires its own capitalization analysis, independent of what your financial statements show. Section 263(a) allows no deduction for amounts paid for permanent improvements, new buildings, or betterments that increase the value of property.5Office of the Law Revision Counsel. 26 USC 263 – Capital Expenditures The Treasury Regulations extend that to all amounts paid to acquire or produce a unit of real or personal property, including invoice price, transaction costs, and any work performed before the asset is placed in service.6eCFR. 26 CFR 1.263(a)-2 – Amounts Paid to Acquire or Produce Tangible Property
Inherently Facilitative Costs
The regulations list categories of spending that are always capitalizable for tax purposes because they are “inherently facilitative” of an acquisition:
- Transportation, including shipping fees and moving costs to get the property to its location
- Appraisals to determine the value or price of the property
- Costs of negotiating terms, structuring the acquisition, and obtaining tax advice on the deal
- Drafting and reviewing bids, offers, sales contracts, and purchase agreements
- Examining and evaluating title
- Application fees and permits related to the acquisition
- Sales and transfer taxes, title registration
- Finder’s fees, broker commissions, and contingency fees
Any cost in these categories is capitalized without a judgment call.6eCFR. 26 CFR 1.263(a)-2 – Amounts Paid to Acquire or Produce Tangible Property This is where GAAP and tax treatment frequently diverge. An advisory fee expensed under ASC 805 in a business combination may still need to be capitalized on the tax return.
De Minimis Safe Harbor
The IRS provides a de minimis safe harbor that lets you expense the cost of tangible property below a threshold amount per invoice or item. For taxpayers with an applicable financial statement (an audited statement, a filed SEC form, or similar), the threshold is $5,000. For everyone else, it is $2,500.7Internal Revenue Service. Tangible Property Final Regulations The election does not apply to inventory or land. To use it, you must have a written accounting policy in place at the start of the tax year and apply it consistently.
Small Business Exemption From UNICAP
Section 263A, the uniform capitalization rules, requires businesses to capitalize direct and indirect costs allocable to property they produce or acquire for resale, including overhead and interest. A small business exemption applies to taxpayers meeting the gross receipts test under Section 448(c); the statutory base is $25 million in average annual gross receipts over the prior three years, adjusted annually for inflation.8Office of the Law Revision Counsel. 26 USC 263A – Capitalization and Inclusion in Inventory Costs of Certain Expenses Most small and mid-size businesses fall below this threshold and skip UNICAP entirely.
Recording the Entry
The mechanics are straightforward. When the transaction closes, debit the appropriate asset account (or a deferred cost account, for debt issuance costs) and credit cash or accounts payable. The entry must land in the same reporting period as the transaction itself. A legal fee invoice dated in March that gets recorded in April creates a period mismatch that auditors will flag.
Once recorded, the capitalized amount sits in the asset’s carrying value and does not reduce current-period net income. Recovery happens gradually: depreciation for tangible assets, amortization for intangibles and software, or the effective interest method for financial instruments. Recovery begins when the asset is placed in service, meaning it is in a condition of readiness and availability for its assigned function. For tax purposes, an incorrect placed-in-service date is not treated as a change in accounting method and can be corrected by adjusting the applicable tax year.
Supporting documentation should tie each capitalized dollar to a specific invoice. Outside counsel bills should break down services by matter so acquisition work is separated from unrelated advisory work. Costs that span multiple purposes, such as a law firm invoice covering both an acquisition and unrelated litigation, need to be allocated, with only the acquisition-related portion capitalized.
Fixing a Prior Mistake
If you discover that costs have been expensed that should have been capitalized, or the reverse, correcting the error requires filing Form 3115 to request a change in accounting method. Changes related to capitalization of acquisition and production costs often qualify for automatic consent, which means no IRS user fee and no waiting for approval. You attach the original Form 3115 to your timely filed tax return for the year of change and send a signed copy to the IRS National Office.9Internal Revenue Service. Instructions for Form 3115 If the automatic procedures do not apply, you file under the non-automatic route, which requires a user fee and earlier filing during the year of change.
What Misclassification Costs You
Capitalizing an operating expense inflates assets, understates current-period expenses, and overstates earnings. Expensing a capitalizable cost does the reverse, understating assets and overstating expenses now while understating them later. Either way, the financial statements are wrong.
On the tax side, improperly deducting a cost that should have been capitalized reduces taxable income and underpays taxes. Section 6662 imposes a 20% accuracy-related penalty on any underpayment attributable to negligence, disregard of rules or regulations, or a substantial understatement of income tax.10Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty For individuals, a substantial understatement means the tax shown was understated by the greater of 10% of the correct tax or $5,000. For corporations other than S corporations, the threshold is the lesser of 10% of the correct tax (or $10,000, whichever is greater) or $10 million. The IRS also charges interest on the penalty from the date it accrues.11Internal Revenue Service. Accuracy-Related Penalty
For public companies, reclassifying operating expenses as capital expenditures to reduce reported costs is a known form of accounting fraud, and SEC enforcement actions in these cases can bring substantial civil penalties and personal liability for individuals involved, including bars from participating in financial reporting at public companies. Restatements forced by audit findings are independently damaging, eroding investor confidence and often triggering securities litigation and credit rating revisions. A documented capitalization policy, applied consistently, with every capitalized amount traceable to a qualifying invoice, is what makes those outcomes avoidable.