Rental Activity as a Section 162 Trade or Business

A rental property counts as a Section 162 trade or business when you manage it with continuity and regularity and your primary purpose is earning income or profit — the standard the Supreme Court set in Commissioner v. Groetzinger.¹ Treating rental activity as a Section 162 trade or business is what preserves your ability to deduct ordinary operating expenses, qualifies you for the 20% qualified business income deduction, and (combined with material participation) keeps your rental profits out of reach of the 3.8% net investment income tax. A rental that doesn’t clear the bar is treated as an investment, and under current law that is a much worse tax position than it used to be.

What the Section 162 Standard Requires

Section 162 lets you deduct “all the ordinary and necessary expenses paid or incurred during the taxable year in carrying on any trade or business,” but the statute never defines the phrase.² The courts filled the gap. Under Groetzinger, two things have to be true: the activity is conducted with continuity and regularity, and your primary purpose is income or profit.¹

No single factor decides a case. The ones the IRS and the Tax Court lean on most heavily are:

How many properties you own and manage. A portfolio makes the continuity argument almost automatic; a single-family home makes you work harder for it.
How much time you spend on it. Routine maintenance, tenant screening, rent collection, and bookkeeping all point toward a business.
What services you provide to tenants. Substantial services (daily cleaning, concierge support, meal service) push toward business status. A triple-net lease, where the tenant handles taxes, insurance, and maintenance, looks like a passive investment.
How involved you actually are. Hands-on, ongoing management helps. Sporadic calls to a property manager hurt.

A single rental can qualify, but you need strong evidence of regular, active management to convince the IRS you are running a business rather than holding an investment. The more your profile looks like “owner, manager, and operator” and the less it looks like “signed a long lease and cashed checks,” the better.

Why the Classification Matters Now

If your rental doesn’t rise to a Section 162 trade or business, the fallback is Section 212, which allows deductions for expenses incurred to produce income or manage investment property.³ For individuals, that fallback has been gutted. Section 212 expenses are miscellaneous itemized deductions subject to the 2% AGI floor, and the Tax Cuts and Jobs Act suspended those deductions for individuals. The One Big Beautiful Bill Act made the suspension permanent starting in 2026.

The practical result: if your rental is classified as an investment activity, you cannot deduct management fees, legal costs, or similar operating expenses at all. Depreciation and mortgage interest survive either way, but outside those two line items, investment classification wipes out most of what landlords typically write off. The gap between Section 162 and Section 212 treatment is wider today than it has ever been.

Clearing the Section 162 bar also opens doors that are closed to investments:

Full deduction of ordinary and necessary operating expenses — insurance, management fees, advertising, utilities, repairs, mortgage interest, and the rest.²
Property taxes deducted on Schedule E as a business expense, which keeps them outside the $40,400 SALT cap that applies to personal itemized deductions in 2026.⁴
Eligibility for the Section 199A qualified business income deduction, discussed below.
A path to escaping the 3.8% net investment income tax, also discussed below.

The Section 199A Safe Harbor: A Cleaner Path

Section 199A offers a 20% deduction on qualified business income, but only if your rental is a trade or business. Rather than argue the Groetzinger factors with the IRS, you can follow Revenue Procedure 2019-38, a safe harbor the IRS wrote specifically for rental real estate.⁵ Important limit: the safe harbor applies only for QBI purposes. It does not override the passive activity rules.⁶

Three requirements:

Keep separate books and records for each rental enterprise.
Perform at least 250 hours of rental services per year. For enterprises operating four years or more, the test is 250 hours in at least three of the five most recent tax years.⁶
Maintain contemporaneous logs showing dates, services performed, and hours spent.

Qualifying services include maintenance, repairs, rent collection, paying expenses, providing tenant services, and marketing. Travel to the property, arranging financing, and reviewing financial statements do not count. You also have to attach a signed statement to your return each year you elect the safe harbor; miss it, and the election is invalid for that year.

Two property types are excluded outright: any property you use as a personal residence during the year, and any property under a triple-net lease. Both exclusions echo the same message running through this area of the code: passive, hands-off ownership does not get business treatment.

The QBI deduction itself phases in limitations at higher incomes. For 2026, it is fully available below $201,750 of taxable income for single filers and $403,500 for joint filers, with the limitations fully phased in at $276,750 and $553,500. Above the thresholds, the deduction is capped by W-2 wages paid and the unadjusted basis of qualified property. Rentals rarely pay W-2 wages, so for higher-income landlords the property’s basis is usually the binding limit.

The 3.8% Net Investment Income Tax Payoff

The net investment income tax is 3.8% of the lesser of your net investment income or the amount by which your modified AGI exceeds $200,000 (single) or $250,000 (joint). Those thresholds are not indexed for inflation.⁷

Rental income is generally swept into net investment income. The exception that matters: if your rental is a trade or business and you materially participate in it, the income is treated as nonpassive operating income and drops out of the NIIT base.⁸ The same exclusion covers the gain when you sell.

Section 162 status alone is not enough here. You need both the trade-or-business classification and material participation. Clearing both bars on a $100,000 net rental profit saves up to $3,800 in NIIT each year, plus whatever the tax would otherwise have cost you on the eventual sale.

What Section 162 Status Does Not Change

Two surprises catch landlords off guard. Both are worth knowing before you plan around a Section 162 classification.

The Passive Loss Rules Still Apply

Even a rental that clearly qualifies as a Section 162 trade or business runs into Section 469, which treats all rental activities as per se passive regardless of how much time the owner puts in.⁹ Passive losses can only offset passive income; they cannot be used against wages, business profits, or portfolio income. Unused losses are suspended and carried forward until you have enough passive income to absorb them or you sell the property in a fully taxable disposition to an unrelated party.¹⁰

Two escape valves exist. The $25,000 special allowance lets active participants deduct up to $25,000 of rental losses against non-passive income, but it phases out between $100,000 and $150,000 of modified AGI ($50,000 to $75,000 if married filing separately).¹¹ The Real Estate Professional designation shuts off the per se passive rule entirely, but it requires more than 750 hours annually in real property trades or businesses and more than half of all your personal services for the year in those activities.¹² Material participation in each rental (or in a grouped single activity) also has to be shown separately.

Self-Employment Tax Still Does Not Apply

Section 1402 specifically excludes rents from real estate when calculating net earnings from self-employment, and that exclusion holds even if your rental is a Section 162 trade or business.¹³ The narrow exception is for “real estate dealers,” meaning taxpayers who buy and sell properties as inventory rather than holding for rental income. Standard buy-and-hold landlords do not owe self-employment tax on rental profits.

A Note on Short-Term Rentals

If the average guest stay at your property is seven days or less, the activity is not treated as a “rental activity” under the Section 469 regulations at all. It is treated like any other trade or business, and if you materially participate, you can use losses against wages and other non-passive income without needing Real Estate Professional status.¹⁴ The same result applies when the average stay is 30 days or less and you provide significant personal services. Most Airbnb-style properties and bed-and-breakfasts fall into these categories. The Section 162 analysis above still matters for them, but the passive loss trap discussed in the previous section does not.

What to Do Now

Look at how you actually operate. Count the properties, add up the hours you spend each month on management tasks, and ask whether a reasonable auditor would describe your activity as a business or a holding. If the answer is business, document it: keep a contemporaneous log, maintain separate books per rental enterprise, and consider electing the Rev. Proc. 2019-38 safe harbor so your QBI deduction rests on a checklist instead of a judgment call. If the answer is holding, know that Section 212 will no longer carry your operating expenses, and reconsider whether more active management (or professional management under your direction) is worth the tax posture it would unlock.

1
Cornell Law School. Commissioner of Internal Revenue v. Robert P. Groetzinger
2
Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses
3
Office of the Law Revision Counsel. 26 USC 212 – Expenses for Production of Income
4
Internal Revenue Service. Topic No. 503, Deductible Taxes
5
Internal Revenue Service. IRS Finalizes Safe Harbor to Allow Rental Real Estate to Qualify as a Business for Qualified Business Income Deduction
6
IRS. Rev. Proc. 2019-38
7
Internal Revenue Service. Questions and Answers on the Net Investment Income Tax
8
eCFR. 26 CFR 1.1411-5 – Trades or Businesses to Which Tax Applies
9
Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses
10
Internal Revenue Service. Topic No. 425, Passive Activities – Losses and Credits
11
Internal Revenue Service. Instructions for Form 8582 (2025)
12
Internal Revenue Service. Publication 925 (2025), Passive Activity and At-Risk Rules
13
Office of the Law Revision Counsel. 26 USC 1402 – Definitions
14
eCFR. 26 CFR 1.469-1T – General Rules (Temporary)