The short answer
A gross lease is a lease under which the tenant pays a single rent and the landlord pays the property's operating expenses, such as taxes, insurance, utilities and maintenance. Like the net lease labels, it is market usage rather than a statutory term; a government-leased office REIT's annual report defines it as a lease requiring the landlord to pay all operating expenses. For an exchange buyer, a gross-leased property puts expense inflation on you rather than on the tenant.
At a glance
| Tenant pays | One rent amount |
|---|---|
| Owner pays | Operating expenses: taxes, insurance, utilities, maintenance |
| Common variant | Modified gross, which splits operating expenses between the parties |
| Main risk | Expense increases reduce the owner's net income until rent resets |
Filed reports define gross, modified gross and net leases by who pays operating expenses.
A government-leased office REIT's Form 10-K for 2006 puts it plainly: net leases require the tenant to pay all operating expenses, gross leases require the landlord to pay all operating expenses, and modified gross leases require the landlord and tenant each to pay a portion. The same filer said its federal government leases were generally modified gross.
That filer treated gross and modified gross leases as the higher-risk category and said it tried to offset that risk through strict underwriting, due diligence and intensive property management. Among its acquisition criteria it listed whether the lease adjusts rent for increases in operating expenses and taxes, which is how many owners claw back part of that risk.
Residential rentals sit at the gross end. IRS Publication 527 treats the owner's ordinary and necessary costs of managing, conserving and maintaining the property as deductible rental expenses, and it says that if a tenant pays one of your expenses, the payment is rental income to you.
In a worked example, the owner absorbs the expense increase.
Hypothetical: an office building leased on gross terms brings in $240,000 of rent, and operating expenses are $90,000, leaving $150,000. Next year taxes and insurance push expenses up 10% to $99,000 while rent is fixed, so net income falls to $141,000. Under a triple net lease with the same base rent, the tenant would have paid the $9,000 increase. Run your own numbers with your CPA.
The reverse also holds: if expenses fall, a gross-lease owner keeps the saving. That two-way exposure is why gross-leased income should be underwritten on expenses as well as rent, and why net operating income is the figure to compare rather than gross rent.
It bites when you choose between a managed property, a net lease and a DST.
Rev. Proc. 2019-38 excludes triple net leased real estate from its section 199A rental safe harbor. A gross-leased property is not excluded on that ground, but it still has to meet the procedure's other conditions, including 250 or more hours of rental services.
In a DST, Rev. Rul. 2004-86 bars the trustee from entering new leases or renegotiating the existing one except on the tenant's bankruptcy or insolvency. Filed DST programs therefore describe properties leased either to a single tenant on a long-term lease or to a sponsor affiliate under a master lease, as in a non-traded real estate partnership's 2025 annual report; the occupants' leases, gross or net, sit beneath that master lease. See DST master lease risk.
If you are leaving a gross-leased office or apartment building because of expense and management load, compare the options in exchanging an office building and double net leases.
Related questions
What is a modified gross lease?
A lease in which the landlord and tenant each pay a portion of operating expenses. Some leases do it by adjusting rent for increases in operating expenses and taxes; the exact split is in the lease.
Can a gross-leased building be 1031 replacement property?
Yes, if you hold it for productive use in a trade or business or for investment. Section 1031(a)(1) looks at the real property and how you hold it, not at how the lease divides expenses.
Who keeps the saving if operating costs fall under a gross lease?
The landlord, because the tenant's rent does not change. The same structure that exposes the owner to rising costs lets it keep any decrease.
Sources
Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.
- SEC EDGAR, Form 10-K for 2006 of a government-leased office REIT
- IRS, Publication 527, Residential Rental Property
- IRS, Rev. Proc. 2019-38 (section 199A rental real estate safe harbor)
- IRS, Rev. Rul. 2004-86
- SEC EDGAR, Form 10-K for 2025 of a non-traded industrial real estate limited partnership with a DST program
- 26 U.S. Code section 1031
