Short answer

The de minimis safe harbor is an annual election that lets a taxpayer deduct the cost of low-priced tangible property in the year it is bought instead of capitalizing and depreciating it. For a taxpayer without an applicable financial statement, which describes most rental owners, the threshold is $2,500 per invoice or per item as substantiated by the invoice, raised from $500 by Notice 2015-82; for a taxpayer with an audited financial statement it is $5,000. The election requires accounting procedures in place at the start of the year that treat such amounts as expenses, is made by a statement attached to a timely filed original return, and cannot be revoked for that year. It matters to cost segregation in two ways: items deducted under the safe harbor never enter the depreciation schedule, so a study must not count them, and the safe harbor is often the simpler answer for small purchases that would otherwise be 5-year property. This article explains the rule and where it fits. It is general education, not tax advice.

The rule in one table

ElementTaxpayer without an applicable financial statementTaxpayer with an applicable financial statement
Threshold$2,500 per invoice or per item, as substantiated by the invoice (Notice 2015-82)$5,000 per invoice or per item
Procedures requiredAccounting procedures at the beginning of the year treating amounts below a set dollar figure, or with a useful life of 12 months or less, as expensesWritten accounting procedures to the same effect
How electedStatement attached to the timely filed original return for the yearSame
Revocable?NoNo
ExcludedInventory; land; certain spare partsSame
EffectAmounts are deducted; the items are not capitalized and do not appear on the depreciation scheduleSame

An applicable financial statement is, in general, an audited financial statement or one filed with a regulator; a rental owner with tax-basis books kept by a bookkeeper typically does not have one and uses the $2,500 figure.

What it covers in a rental

Purchases that commonly fall under the threshold: individual appliances, ceiling fans, light fixtures, blinds and window coverings, small tools, smoke and carbon monoxide detectors, locks, water heaters in some cases, and furniture pieces. The test is per invoice or per item as substantiated by the invoice, so an invoice for ten appliances at $1,200 each can qualify item by item, while a single $6,000 furnace does not.

The safe harbor is about the amount paid for the property, not about whether it would otherwise be a repair or an improvement. Items that qualify are deducted regardless of the improvement analysis. Items that exceed the threshold go through the improvement analysis: a betterment, restoration or adaptation is capitalized, and the separate small-taxpayer safe harbor may still allow a deduction for an eligible building when the year's total does not exceed the lesser of 2 percent of the building's unadjusted basis or $10,000.

How it interacts with a study

  1. Acquisition. The safe harbor applies to amounts paid for property; components bought as part of a building purchase are not separately invoiced items, so the study classifies them in the ordinary way. A study does not turn a building's appliances into de minimis items.
  2. After acquisition. Appliances, fixtures and furniture bought later under the threshold are deducted under the election and never appear on the schedule. A study that lists them as 5-year assets double counts; the IRS guide expects the asset list to tie to the fixed-asset ledger, and the ledger will not have them.
  3. Renovations. Invoices for a renovation are tested item by item where the invoice substantiates items; the qualifying pieces are deducted, the rest go to the improvement analysis and then to classification.
  4. Consistency. The election is annual and covers all qualifying amounts for the year once made; a study prepared for that year has to know whether the election was made.

Tell the practitioner which years the election was made and give them the invoices. The reconciliation depends on it.

Why owners choose it

  • It removes small items from the depreciation schedule, which shortens the schedule and the record-keeping for years.
  • It gives a current deduction without the section 179 trade-or-business question or the bonus depreciation election, though the deduction is still a rental expense subject to the passive activity rules like any other.
  • It is simple to apply if the procedures exist at the start of the year.

Why owners sometimes do not

  • The procedures must be in place at the beginning of the year; an owner who decides in April to expense last year's purchases does not qualify for last year.
  • The election is irrevocable for the year, and it applies to everything under the threshold, not a chosen subset.
  • Some owners prefer a longer asset list for later partial dispositions or for a sale; that is a judgement call for the adviser.

Common errors

  • Applying the threshold to the total invoice for many items rather than per item, or the reverse.
  • Treating the threshold as $2,500 for a taxpayer who actually has an applicable financial statement, or as $5,000 for one who does not.
  • Making the election without the accounting procedures in place at the start of the year.
  • Listing de minimis items on the depreciation schedule anyway, and letting a study pick them up.
  • Confusing the de minimis safe harbor with the small-taxpayer safe harbor for buildings; they are different rules with different limits.

What people ask on Reddit and other forums

The "$2,500 rule" is a fixture of the "cost segregation reddit" and landlord threads on r/realestateinvesting and r/tax. The searches that lead people to these threads are usually phrased "de minimis safe harbor rental property", "$2,500 safe harbor election" and "expense vs capitalize rental".

"Can I just expense anything under $2,500?" Tangible property under $2,500 per invoice or per item, if you have the procedures in place at the start of the year and attach the election statement to your return. Not inventory, not land.

"Do I need written procedures as a small landlord?" Taxpayers without an applicable financial statement need accounting procedures in place at the beginning of the year; written procedures are required for those with an applicable financial statement. Ask your adviser how to document yours.

"Does this replace cost segregation?" No. It handles small purchases after acquisition; a study handles the components inside the building's price.

"I bought a $6,000 HVAC unit. De minimis?" No; it exceeds the threshold. It goes through the improvement analysis, and a separate small-taxpayer safe harbor may apply to an eligible building depending on the year's total.

Questions people also ask

What is the de minimis safe harbor amount for 2025?

$2,500 per invoice or per item for taxpayers without an applicable financial statement, per Notice 2015-82, and $5,000 for those with one.

How do I make the de minimis safe harbor election?

By attaching a statement to your timely filed original return for the year. The election cannot be revoked for that year.

Does the de minimis safe harbor apply to rental property?

Yes, to tangible property bought for the rental, subject to the threshold, the procedures requirement and the exclusions.

Can a cost segregation study include items I expensed under the safe harbor?

No. Expensed items are not capitalized and do not belong on the asset list. Tell the practitioner which items were expensed.

Is the safe harbor the same as the small-taxpayer safe harbor?

No. The de minimis safe harbor is per item; the small-taxpayer safe harbor is an annual limit for repairs and improvements to an eligible building, the lesser of 2 percent of its unadjusted basis or $10,000.

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