A NNN (triple net) lease is a commercial real estate agreement where the tenant assumes responsibility for three categories of costs beyond base rent: property taxes (first "N"), insurance (second "N"), and maintenance/common area expenses (third "N"). The landlord receives predictable rental income while transferring operational risk to the tenant. This lease structure has become a cornerstone of commercial real estate investing, particularly for income-focused portfolios.
How It Works
Under a NNN lease, the tenant's total monthly obligation includes the base rent plus their proportionate share of property taxes, building insurance, and maintenance costs. These additional expenses are typically passed through as "triple net" charges calculated monthly or annually. The landlord retains ownership and handles major capital improvements, while the tenant manages day-to-day operations and routine maintenance. Lease terms typically range from 10 to 20 years, providing stability for both parties.
Why It Matters for Investors
NNN leases appeal to investors seeking passive income with minimal management responsibility. Because tenants cover operating expenses, landlords enjoy higher net margins and more predictable cash flow compared to gross leases. These properties often attract institutional buyers and REITs, making them relatively liquid investments. NNN structures work particularly well for single-tenant properties with creditworthy tenants, as the risk profile decreases significantly. This makes them suitable for diversifying an investment portfolio beyond traditional stocks and bonds.
Example
Consider an investor purchasing a 10,000 square-foot building leased to a national retail chain for $5,000/month base rent. The tenant also pays their proportionate share of $2,000 monthly in combined property taxes, insurance, and maintenance. The investor receives $7,000 monthly without managing repairs or administrative tasks. If the tenant is an investment-grade company, the investor has secured 20 years of relatively stable income with minimal operational burden.
Key Takeaways
- Tenants pay all operating costs beyond base rent, reducing landlord management and liability exposure
- Provides predictable, passive cash flow attractive to long-term real estate investors and income portfolios
- Works best with creditworthy tenants and long-term leases to ensure payment reliability
- Often used in REIT structures and commercial real estate portfolios for institutional-quality returns