Every business buys things that sit in a gray zone: a $1,900 laptop, a $4,000 HVAC repair, a set of exam room chairs. Do you deduct them this year, or put them on the balance sheet and depreciate them over five, seven, or even 39 years? The answer depends less on what you bought and more on whether you set up the right policies and elections. Many small businesses never do.
With the fourth quarter underway, now is the right time to review how your business treats these purchases. Here is how three IRS safe harbors can let you write off more of your 2026 spending immediately.
Key Takeaways
- The de minimis safe harbor lets you expense items costing up to $2,500 per invoice or item, or up to $5,000 if you have audited financial statements.
- The election is made annually with a statement attached to a timely filed return, and your expensing policy must be in place on the first day of the year.
- The routine maintenance and small taxpayer safe harbors let you deduct many building and equipment repairs that might otherwise be capitalized.
- Even with 100% bonus depreciation back, these rules still matter for state taxes, simpler books, and cleaner asset records.
The Core Rule: Improvements Are Capitalized, Repairs Are Deducted
Under the tangible property regulations, you must capitalize amounts paid to acquire or produce property and amounts paid to improve it. Ordinary repairs and maintenance that keep property in its normal operating condition are deductible right away. To decide whether work is an improvement, the IRS applies the BAR test:
- Betterment: Fixes a pre-existing defect, enlarges or expands the property, or materially increases its capacity, productivity, or quality.
- Adaptation: Converts the property to a new or different use, such as turning warehouse space into a medical office suite.
- Restoration: Replaces a major component, rebuilds property after it reaches the end of its useful life, or returns it to working order after it has deteriorated to a state of disrepair.
If none of these apply, the cost is generally a deductible repair. The BAR test involves judgment, which invites disagreement in an IRS audit. The safe harbors below replace judgment with bright lines.
Safe Harbor 1: The De Minimis Election
The de minimis safe harbor lets you deduct tangible property below a set dollar amount, regardless of how long it lasts, as long as you also expense it on your books.
| Business Type | Per-Item or Per-Invoice Limit | Policy Requirement |
|---|---|---|
| No applicable financial statement (most small businesses) | $2,500 | Accounting procedure in place at the start of the year |
| Has an applicable financial statement (audited statements or SEC filing) | $5,000 | Written policy in place at the start of the year |
How to Make It Work
- Adopt a written capitalization policy. Smaller businesses are not strictly required to put it in writing, but a dated, signed policy stating that items at or below $2,500 are expensed is the best evidence you have. To cover January 1, 2027, adopt it before year-end.
- Follow it on your books. If your bookkeeper capitalizes a $1,800 printer on the balance sheet, you cannot expense it on the tax return. Book and tax treatment must match.
- Attach the election every year. Include a statement titled “Section 1.263(a)-1(f) de minimis safe harbor election” with your timely filed return, including extensions. Missing it for 2026 means you cannot use the safe harbor for 2026, and it cannot be fixed with an amended return.
The limit applies per invoice, or per item if the invoice itemizes costs. Five $2,000 laptops on one itemized invoice all qualify; a single $3,000 laptop does not. Delivery and installation charges count toward the item cost.
A capitalization policy takes 15 minutes to write and can move thousands of dollars of deductions into the current year.
Safe Harbor 2: Routine Maintenance
Recurring work that keeps property operating efficiently can be deducted under the routine maintenance safe harbor, even if it replaces parts. To qualify, you must reasonably expect to perform the work more than once during the asset’s class life for equipment, or more than once every 10 years for buildings. Examples include servicing HVAC units, replacing filters and belts, and overhauling imaging equipment on a manufacturer schedule. No election statement is required, but work that is a betterment or adaptation never qualifies.
Safe Harbor 3: Small Taxpayers With Buildings
If you own or lease a building, the small taxpayer safe harbor lets you deduct all repairs, maintenance, and improvements on that building for the year if you meet three conditions:
- Average annual gross receipts of $10 million or less over the prior three years.
- The building’s unadjusted basis is $1 million or less.
- Total repair, maintenance, and improvement spending on the building for the year does not exceed the lesser of $10,000 or 2% of its unadjusted basis.
For a medical office purchased for $450,000, the ceiling is $9,000. Spend $8,500 on a new door system and paint, and the entire amount is deductible. Spend $9,100, and the safe harbor is lost for that building for the year. This election is also made annually.
Do These Rules Still Matter With 100% Bonus Depreciation?
The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for qualifying property acquired after January 19, 2025, so it is fair to ask why the safe harbors matter. There are several reasons:
- State taxes. Many states do not conform to federal bonus depreciation, but items expensed under the de minimis election are generally deductible for state purposes as well. Review this with your multi-state tax picture in mind.
- Building costs. Most building improvements are 39-year property that does not qualify for bonus depreciation. The repair rules and small taxpayer safe harbor are often the only path to a current deduction.
- Cleaner books. Unlike Section 179 or bonus depreciation, expensing small items keeps hundreds of low-value assets off your fixed asset schedule, which simplifies disposals and recapture tracking later.
Your Year-End Action Checklist
- Review your general ledger for repairs and small equipment that were capitalized during 2026.
- Confirm whether a capitalization policy was in place on January 1, 2026, and adopt or update one now for 2027.
- Calculate the small taxpayer ceiling for each building you own or lease.
- Ask your preparer to attach the de minimis and small taxpayer election statements to your 2026 return.
If you capitalized deductible repairs in past years, an accounting method change on Form 3115 may let you catch up on those deductions without amending prior returns.
The Bottom Line
The line between a repair and an improvement does not have to be a guessing game. A simple capitalization policy, consistent bookkeeping, and the right elections can turn thousands of dollars of 2026 purchases into immediate deductions.
Our bookkeeping team can set up your capitalization policy and code purchases correctly all year, our tax preparation and strategy specialists will make the elections and review prior-year assets for missed deductions, and our financial reporting group can align your books with your lender or audit requirements. Schedule a free consultation and we will help you decide what to expense and what to capitalize before December 31.
