The QBI Deduction for Landlords: Safe Harbor and Triple-Net Exclusion

The deduction depends on the rental being a trade or business, and the Code never defines that for landlords

Section 199A(a) allows a deduction of 20% of qualified business income from a qualified trade or business, limited to 20% of taxable income after subtracting net capital gain. Reg. section 1.199A-1(b)(14) defines a trade or business as one under section 162, other than being an employee, and adds one rental-specific rule: renting to a business you or a commonly controlled pass-through entity operate is treated as a trade or business even if the rental alone would not be.

Section 162 has no hour count or property count, which is why the IRS published a safe harbor. Its own 199A FAQs list three routes for rental income: the rental rises to a section 162 trade or business on its facts, it meets the Rev. Proc. 2019-38 safe harbor, or it is a self-rental to a commonly controlled business. The FAQs also state that a single triple-net lease does not generally rise to the level of a section 162 trade or business.

The deduction is taken below the line. It does not reduce adjusted gross income, self-employment income, net investment income or your basis in the property, so it lowers taxable income without changing any of the thresholds on the 2026 numbers page.

The Rev. Proc. 2019-38 safe harbor: 250 hours, separate books, contemporaneous logs and a statement on the return

A rental real estate enterprise, one property or several of the same category, is treated as a trade or business for section 199A if, each year, separate books and records are kept for it; 250 or more hours of rental services are performed for it, or, once the enterprise is at least four years old, in any three of the five consecutive years ending with the current year; and the taxpayer keeps contemporaneous records of the hours, a description of each service, the dates and who performed it. The records requirement applies to tax years beginning on or after January 1, 2020.

Rental services count whoever performs them: owners, employees, agents or independent contractors. They include advertising, negotiating and executing leases, verifying tenant applications, collecting rent, daily operation, maintenance and repair including buying supplies, managing the real estate and supervising workers. They do not include arranging financing, procuring property, reviewing financial statements, capital improvements under Reg. section 1.263(a)-3(d), or travel to and from the property.

Residential and commercial properties cannot be combined into one enterprise, though a mixed-use building may be treated as one or split. The taxpayer attaches a statement to the timely filed return describing each property, any acquired or disposed of during the year, and representing that the requirements were met.

Triple-net leases, personal-use dwellings and self-rentals are excluded, so a NNN building rarely gets the safe harbor

Section 3.05 of the revenue procedure excludes four kinds of property from any enterprise: real estate you or an owner of the entity use as a residence under section 280A(d); real estate rented under a triple-net lease, defined as one that requires the tenant to pay taxes, fees and insurance and to pay for maintenance in addition to rent and utilities; real estate rented to a commonly controlled trade or business; and any interest partly treated as a specified service business.

Exclusion from the safe harbor is not a denial of the deduction. A triple-net portfolio can still be a section 162 trade or business on its facts, and a self-rental qualifies under the regulation's own rule. What the owner loses is certainty, which is why single-tenant NNN sellers and the DST versus NNN comparison treat the deduction as a CPA question rather than a given.

Above $403,500 joint the wage and property limits phase in, and a landlord with no payroll relies on 2.5% of unadjusted basis

Rev. Proc. 2025-32 section 3.26 sets the 2026 threshold at $403,500 of taxable income for joint filers, $201,750 for other filers and $201,775 married filing separately, with the limits fully phased in at $553,500, $276,750 and $276,775. Below the threshold the 20% is unrestricted. Above it, section 199A(b)(2)(B) caps the deduction for each business at the greater of 50% of its W-2 wages or 25% of wages plus 2.5% of the unadjusted basis immediately after acquisition of its qualified property.

Qualified property is tangible depreciable property still inside its depreciable period, the later of ten years from the placed-in-service date or the end of its section 168 recovery period, so a building counts for 27.5 or 39 years but land never does. Hypothetical: a couple above the phase-in owns a rental bought for $1,000,000, $700,000 of it building, producing $60,000 of qualified income. The property limit is 2.5% of $700,000, or $17,500, which exceeds 20% of $60,000, so the full $12,000 is allowed. Run your own numbers with your CPA.

After an exchange, Reg. section 1.199A-2(c)(3) carries the relinquished property's unadjusted basis over to the replacement, reduced by excess boot or increased by cash paid, and the exchanged portion keeps the old placed-in-service date for the depreciable period. A long-held building exchanged into a new one may therefore have little or no qualified property left for the 2.5% test; depreciating replacement property after a 1031 covers the parallel depreciation rule.

Selling or exchanging changes the answer: the gain never qualifies, and DST income usually rests on a triple-net master lease

Section 199A(c)(3) excludes long-term and short-term capital gain and loss from qualified business income, so the gain on a sale, including the unrecaptured section 1250 layer, gets no 20% deduction. Worse, the overall cap is 20% of taxable income minus net capital gain, so a large sale year can shrink the deduction on that year's rents to nothing. A 1031 exchange keeps the gain out of both figures.

The trust in Rev. Rul. 2004-86 holds its property under a net lease in which the tenant pays all taxes, insurance, maintenance, repairs and utilities, and its trustee is limited to collecting and distributing income. An investor in a traditional DST therefore performs no rental services and the lease is triple net by the revenue procedure's definition, so the safe harbor is unavailable and any deduction rests on whether the underlying rental is a section 162 trade or business on its facts. That is a return-by-return judgment; DST tax return reporting explains the grantor-letter reporting the judgment is made from.