NNN Property Tax Charges Explained — Why Your Costs Keep Rising

What Are NNN Property Tax Charges?

In a triple-net (NNN) lease, tenants typically reimburse the landlord for real estate taxes assessed on the property. These costs are passed through annually as part of NNN expenses.

Property tax charges are based on:

• Local tax assessments
• Assessed property value
• Tax rate changes by jurisdiction

How Property Taxes Should Be Passed Through

1. Government assesses property value
2. Tax rate is applied
3. Total tax bill is issued to landlord
4. Tenant pays pro-rata share (per lease terms)

Errors often arise in how increases, reassessments, and allocations are handled.

Common Property Tax Overcharges

• Passing through reassessment spikes improperly
• Charging tenants for tax appeals initiated by landlord
• Including penalties or late fees
• Incorrect pro-rata calculations
• Applying taxes to excluded lease periods

These errors often compound year over year, quietly inflating rent obligations.

Base Year and Property Tax Caps

Many leases limit tax pass-throughs using a base year or escalation cap. Tenants are often only responsible for increases above that base.

If base year calculations are wrong, tenants may pay increases they never agreed to.

Why Tenants Rarely Question Property Taxes

• Taxes feel “government-mandated”
• Reconciliation statements lack detail
• Tenants assume increases are unavoidable
• Audit windows expire quickly

Once audit deadlines pass, incorrect tax charges often become final.

Can Property Tax Charges Be Challenged?

Yes. Tenants can often challenge incorrect allocations, base year errors, and improper pass-throughs — but only within the lease’s audit window.