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Rent Escalation Calculator

Enter your base rent, escalation type, and lease term to see the full year-by-year rent schedule and verify your landlord is applying CPI or fixed-rate increases correctly.

Why this matters: Rent escalation clauses can significantly increase your total lease cost over time. Whether your lease uses a fixed percentage or CPI escalation, verifying the calculation against your actual lease language can reveal errors that inflate your rent.

Lease Escalation Inputs
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Escalation Schedule

Enter your lease details above to see the escalation schedule.

Related rent escalation guides

Escalation errors often come from the wrong CPI index date, a missed cap, or compounding applied incorrectly. Use this calculator to verify the math, then trace the source of any variance in your lease before disputing it.

  • Rent Escalation Clauses Explained
  • Base Year Errors in CAM Reconciliations
  • CAM Cap Provisions and How They Work

Frequently Asked Questions

How is CPI rent escalation calculated?
CPI rent escalation multiplies your base rent by the ratio of the current Consumer Price Index to the base year CPI specified in your lease. If your lease caps the increase at 4% annually, the calculation is: new rent = min(base rent × (current CPI / base CPI), base rent × 1.04). The critical detail is which CPI index date your lease specifies; landlords sometimes use a date that produces a higher increase than the lease language requires.
What is a fixed rent escalation?
A fixed rent escalation increases your base rent by a set percentage each year, such as 3%. Unlike CPI escalation, the amount is predictable. Many leases combine fixed escalation with a CPI floor or ceiling to keep rent in a fair range.
Can I dispute a rent escalation?
Yes. If your landlord applies the wrong CPI index, uses incorrect base or current dates, misses a cap in your lease, or compounds annual increases incorrectly, the resulting rent is higher than your lease allows. CAMAudit checks escalation clauses as part of its full lease review.

Next Best Step

Verify your escalation against your lease language

CPI and fixed-rate clauses are frequently applied incorrectly. The audit checks the math.

Understanding CAM overcharges

See how escalation errors fit into the broader CAM overcharge picture.

See a sample report

Preview how escalation findings are documented in the audit report.

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Run the free audit to check your escalation clause against actual charges.

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Related Resources

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Recovery of past CAM overcharges depends on your specific lease terms, including any audit rights deadlines or ‘binding and conclusive’ provisions, and on applicable state law.

State statute of limitations periods apply to written contracts and range from 3 to 10 years. Your actual lookback window may be shorter based on your lease.

CAMAudit is a document analysis platform, not a law firm, and nothing on this site constitutes legal advice. Consult a licensed real estate attorney before initiating any dispute or legal proceeding.

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