Every business buys equipment, tools and furniture. The question is always the same: do I deduct this now, or capitalize it and depreciate it over several years?
The IRS tangible property regulations answer that question, and one of their most useful tools is the de minimis safe harbor. Every business owner should know about it, whatever the industry.
"De minimis" here has nothing to do with the de minimis rules under Section 263A. Same Latin, different rule.
How it works
If you make the election, you can deduct the cost of items up to a set dollar amount per invoice, or per item as substantiated by the invoice, without analyzing whether each one should be capitalized:
| Your situation | Limit per invoice or item |
|---|---|
| You have an applicable financial statement (generally audited financials, or statements filed with the SEC or another government agency) | $5,000 |
| You don't have an applicable financial statement (most small businesses) | $2,500 |
The $2,500 limit has applied since 2016; before that it was $500 (IRS Notice 2015-82).
Costs on the same invoice, such as delivery and installation, count toward the per-item amount. A $2,300 computer with $300 of setup on the same invoice is over the limit.
The requirements people miss
- Elect it every year. Attach a statement titled "Section 1.263(a)-1(f) de minimis safe harbor election" to your timely filed return (including extensions), with your name, address and taxpayer ID number. The election is made one year at a time and can't be made late on an amended return.
- Have a policy in place at the start of the year. You need an accounting procedure, as of the first day of the tax year, to expense items below a set amount. If you have an applicable financial statement, the policy must be in writing. Even if you don't, put it in writing anyway.
- Treat it the same way on your books. The items must be expensed in your books and records, not just on your tax return.
What doesn't qualify
The safe harbor doesn't apply to inventory, land, or certain spare parts and materials that you've chosen to capitalize and depreciate.
Going over the limit doesn't automatically mean capitalizing
This is the point I most want readers to take away. If a purchase is over the safe harbor limit, it just means the safe harbor doesn't cover it. You then apply the normal rules, which may still let you deduct it:
- Materials and supplies: items costing $200 or less per unit, or with a useful life of 12 months or less, are generally deductible.
- Repairs vs. improvements: a cost to keep property in ordinary working condition is a deductible repair. A cost that betters, restores or adapts the property to a new use is an improvement that must be capitalized. A $4,000 routine repair on equipment you're already depreciating may be fully deductible; a $4,000 upgrade that adds new capability probably isn't.
- Routine maintenance safe harbor: recurring maintenance you expect to perform more than once during the property's class life (or, for buildings, more than once in 10 years) is deductible.
- Small taxpayer safe harbor for buildings: if your average gross receipts are $10 million or less and a building's unadjusted basis is $1 million or less, you can deduct repairs and improvements on it up to the lesser of $10,000 or 2% of that basis for the year.
And when you do have to capitalize
Capitalizing no longer has to mean waiting years for the deduction. Under the tax law enacted in July 2025:
- 100% bonus depreciation is permanent for qualifying property acquired after January 19, 2025.
- The Section 179 expensing limit is $2.5 million (indexed for inflation after 2025), phasing out once total qualifying purchases exceed $4 million.
One local caution: New Jersey and New York generally do not follow federal bonus depreciation, so your state depreciation can differ from your federal return. That's one more reason the de minimis safe harbor, which states generally respect, remains useful.
The bottom line
The de minimis safe harbor is a simple election that saves time and gives you certainty on small purchases. Make sure it's actually being elected on your return every year.