LEARN · CPI ESCALATOR
How CPI Escalator calculates rent adjustments
CPI Escalator is designed to translate CPI-based lease language into clear, defensible rent adjustments using official data from the U.S. Bureau of Labor Statistics (BLS).
Step-by-step flow
- 1. Enter lease details. Provide the prior rent amount, base CPI month/year, comparison CPI month/year, and any cap/floor language (for example, “not to exceed 5%”).
- 2. CPI values are pulled. The tool references CPI index values for the selected series (such as CPI-U) over the chosen period.
- 3. Percentage change is calculated. CPI Escalator computes the percent change between the base and comparison periods.
- 4. Caps and floors are applied. Any cap/floor rules from the lease are applied to the raw CPI change to determine the allowed adjustment.
- 5. New rent & letter are generated. The system outputs the updated rent, dollar change, and a structured summary suitable for a rent adjustment notice.
When to use it
CPI Escalator is intended for professional users who need a fast, consistent way to calculate CPI-based rent adjustments: property managers, landlords, HOA/COA administrators, asset managers, and internal accounting teams.
It does not replace legal review or formal interpretation of lease language. Where leases contain ambiguous or unusual CPI clauses, you should confirm the methodology with counsel or ownership before sending notices.
Ready to run a CPI-based adjustment?