Gross lease: landlord pays and deducts everything
Under a gross lease, the landlord collects a flat rent and pays all operating expenses: property taxes, insurance, utilities, maintenance, and repairs. The landlord reports the full rent as income and deducts each operating expense on Schedule E. Net income equals rent minus all expenses.
From a tax standpoint, this is straightforward: every bill that arrives flows through the landlord's Schedule E. The tenant has no direct tax interaction with the property's operating costs.
Net lease: reimbursements are income, expenses are deductions
Under a net lease (including NNN — triple-net), tenants pay some or all of the operating expenses on top of a base rent, either directly or as reimbursements to the landlord. The tax treatment depends on how the tenant pays:
Tenant reimburses the landlord: the reimbursement is rental income to the landlord. The landlord then pays the actual expense (property tax, insurance, etc.) and deducts it. Net result: zero impact on taxable income, but gross rental income is higher.
Tenant pays the expense directly (e.g., tenant sends the property tax check to the taxing authority): the landlord does not include this in income, and the landlord also cannot deduct an expense they did not pay. The payment flows entirely through the tenant's accounts. Rev. Rul. 81-170 addresses this treatment.
The practical difference: if your NNN tenants pay you and you pay the bills, your gross Schedule E income is larger (more gross rent + reimbursements), but so are your deductions. If they pay directly, both income and expenses are lower. The net taxable income is the same in both cases — but the gross numbers differ.
Modified gross leases and allocation
Many commercial leases are modified gross — the landlord covers some expenses and the tenant covers others. The same principles apply: expenses the landlord pays are deductible; amounts the tenant pays directly don't appear on the landlord's return; reimbursements the landlord collects for expenses they pay are gross income that nets to zero.
For multi-tenant buildings, common area maintenance (CAM) charges reimbursed by tenants are income to the landlord. The actual costs of maintaining common areas are deductions. Track each category carefully if you have multiple tenants on varying lease structures.
Frequently asked questions
Are triple-net lease reimbursements taxable income?
Yes, if the tenant pays the landlord and the landlord then pays the expense. The reimbursement is income; the actual expense paid is a deduction. Net effect on taxable income is zero.
What if my NNN tenant pays property taxes directly to the county?
If the tenant pays the taxing authority directly (bypassing you), the payment is not income to you and you cannot deduct it — it never touched your accounts.
Does the type of lease affect my depreciation deduction?
No. Depreciation on the building is based on your cost basis and is not affected by whether you use a gross lease or net lease.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.