AI Lease Abstraction Accuracy: Benchmarks and What to Expect
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
A gross-up provision requires the landlord to adjust the operating expense reconciliation to reflect what expenses would have been if the building were 95%–100% occupied, rather than the actual occupancy level during the measurement year. It prevents tenants from being overcharged for variable expenses (such as cleaning, utilities, and security) during periods of high vacancy when those expenses are artificially low relative to a fully occupied building.
By Angel Campa, Founder · Updated March 2026
Without a gross-up provision, a tenant in a 60% occupied building in year one pays a proportionate share of operating expenses based on actual low-occupancy costs. When the building fills to 95% occupancy in year two, actual expenses increase significantly — but the tenant's base year (set during low occupancy) remains understated, causing the tenant to owe large pass-through amounts above the understated base. The gross-up provision eliminates this timing distortion by normalizing expenses to full occupancy conditions for comparison purposes in all years.
Require gross-up to apply to all variable operating expenses — specifically cleaning, utilities, security, and management fees — but not to fixed expenses like insurance premiums, real estate taxes, and debt service, which do not vary with occupancy. Specify the gross-up occupancy threshold at 95% of rentable area (industry standard), ensuring the landlord cannot use a lower threshold that provides less protection. Apply the gross-up provision to both the base year and all subsequent years to maintain a consistent comparison standard throughout the lease term.
Gross-up of variable expenses only at 95% occupancy (industry standard), gross-up applied to all operating expenses including fixed items (occasionally negotiated), gross-up limited to the base year only, and no gross-up provision (most landlord-favorable, flagged as a red flag by Lextract).
Lextract extracts these fields directly from your lease PDF when this clause is present:
Base Year Clause
A base year clause establishes a reference year — typically the first full calendar year of the lease term — against which future operating expense increases are measured.
Operating Expense Stop
An operating expense stop is a lease provision that sets a maximum dollar threshold for operating expenses included in the base rent — the landlord bears all operating costs up to the stop amount, and the tenant is responsible for any expenses above that threshold.
Rent Escalation Clause
A rent escalation clause is a lease provision that provides a predetermined mechanism for increasing the base rent over the lease term.
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
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