Loan fees are amortized over the contractual life of the debt, beginning on the funding date and ending at the final scheduled maturity. That is the general rule for how long to amortize loan fees under both U.S. GAAP and IFRS, and it applies whether the fees were paid to the lender or to third parties tied to issuing the debt. The period shifts in specific situations: revolving facilities follow the commitment period, early payoffs accelerate everything that is left, and modifications can either reset the clock or extend the original one.
Term Loans and Other Nonrevolving Debt
For a standard term loan, the amortization period runs from funding to the final contractual maturity date. A five-year loan means five years of amortization. If the agreement includes mandatory renewal periods the borrower cannot avoid, those periods are added to the contractual life. Optional renewals generally are not included unless the renewal right belongs exclusively to the borrower and cannot be cancelled by the lender.
The contractual life governs rather than management’s best guess at when the debt might actually be repaid. Using an expected life would invite subjective estimates that make financial statements harder to compare across companies, so the objective, verifiable timeline wins.
Revolving Credit Facilities
Revolving lines work differently. When a facility has a stated commitment period, fees are amortized ratably over that period regardless of whether any money is actually drawn. The SEC staff has specifically endorsed this approach, and straight-line amortization is generally appropriate because the commitment is available evenly across the period.
If the revolver later converts to a term loan, the remaining unamortized costs switch to the effective interest method from the conversion date forward, and they ride out the term loan’s contractual life.
Commitment fees on an unused line sit in their own category. Rather than being capitalized, they are generally deducted as a business expense in the period they relate to, because they compensate the lender for keeping funds available rather than adjusting the cost of money actually borrowed.
When the Loan Is Paid Off Early
If you repay the loan before maturity, any unamortized fees still on the balance sheet must be written off immediately. The remaining balance is recognized in the period of extinguishment, typically as a component of interest expense or a loss on debt extinguishment. The balance sheet cannot carry an asset or contra-liability for a debt that no longer exists, so the original amortization period is cut short by whatever is left.
Refinancing and Modifications
When you renegotiate loan terms with the same lender, the amortization period depends on whether the new terms are “substantially different” from the old ones. The test compares the present value of future cash flows under the new terms against the present value of remaining cash flows under the original terms, both discounted at the original loan’s effective interest rate. A difference of 10 percent or more means the old debt is treated as extinguished and the new debt recognized separately.
The amortization period follows that determination:
- Substantial modification (extinguishment). All unamortized fees from the original loan are written off immediately. New fees paid to the lender become part of the new debt’s carrying amount, and new third-party fees are capitalized as debt issuance costs of the new debt, both amortized over the new debt’s term.
- Non-substantial modification. The original loan continues. Unamortized fees carry forward and are amortized over the modified loan’s remaining life using a recalculated effective interest rate. Any new third-party fees incurred in the modification are expensed as incurred rather than amortized.
The treatment of new fees flips between the two outcomes, which is easy to miss. In a non-substantial modification, lender fees get capitalized but third-party fees go straight to expense. In an extinguishment, third-party fees get capitalized into the new debt and lender fees are expensed as part of the loss on the old one.
Aborted or Delayed Financings
Before a loan closes, costs already paid to get the deal done sit on the balance sheet as a deferred charge, waiting to begin amortizing on the funding date. If the financing falls through, those deferred costs must be expensed immediately. A delay of up to 90 days does not count as an aborted deal, but anything beyond that threshold means the costs come off the balance sheet and hit the income statement rather than ever starting an amortization schedule.
How the Amortization Is Calculated
GAAP requires the effective interest method for amortizing loan fees on term debt. This applies a constant interest rate to the loan’s carrying amount each period, so the dollar amount of amortization shifts slightly from period to period as the carrying value changes. The effective interest rate is the rate that exactly discounts the loan’s future cash payments back to its net carrying amount, meaning face value minus unamortized fees.
Straight-line amortization, dividing the total fees equally across all periods, is only acceptable when the results do not materially differ from the effective interest method. For most loans with level payments and modest fees, the difference is negligible and straight-line works as a practical shortcut. For deeply discounted debt or loans with irregular payment schedules, the gap widens and the full effective interest calculation is required.
IFRS follows the same logic. Under IFRS 9, financial liabilities carried at amortized cost must use the effective interest rate, and origination fees paid on issuance are treated as an integral part of that rate. The standard amortizes fees over the expected life of the instrument, though a shorter period is used when the fees relate to a specific shorter timeframe.
Tax Timing
The tax rules land in roughly the same period as GAAP, through different mechanics. Under Treasury regulations, debt issuance costs that must be capitalized are treated as if they reduce the loan’s issue price, which creates or increases original issue discount. The borrower then deducts that OID over the life of the debt using the constant-yield method, the tax equivalent of the effective interest method. When the total OID on a loan is very small, a de minimis straight-line approach may be available.
Commitment fees on revolving credit are treated as ordinary business expenses deductible in the period they accrue, consistent with the book treatment. The IRS has confirmed in published guidance that quarterly commitment fees computed on unused commitment amounts are currently deductible under Section 162.
If loan fees have been deducted on the wrong timing in prior years, correcting the method is done by filing Form 3115, Application for Change in Accounting Method. Many corrections qualify for the automatic change procedures, which carry no user fee and do not require waiting for IRS approval before implementing the change.