Rent Increase Calculator

Calculate new rent after increase with CPI comparison and 5-year projection.
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Increase Type
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New Rent

$1,575.00

Increase

$75.00 (5.0%)

Analysis

Monthly Increase$75.00
Annual Increase$900.00
vs CPI1.8% above CPI
Year 1$1,575.00
Year 2$1,653.75
Year 3$1,736.44
Year 4$1,823.26
Year 5$1,914.42

Use the Rent Increase Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

Our Rent Increase Calculator helps both tenants and landlords understand the financial impact of rent adjustments, especially crucial with inflation. It projects your rent for up to five years, comparing it against historical and projected CPI data to ensure fair and informed decisions. For 2026, understanding these shifts is vital for budgeting and market analysis.

This calculator utilizes your current rent and an anticipated increase percentage, then applies a compound growth model for future years. We also factor in the latest CPI data (e.g., using the projected 2.5% for 2026 and subsequent years as a benchmark) to provide a comparative context for the proposed increases. The formula is: New Rent = Current Rent * (1 + Increase Rate).

Remember, CPI is a national average and local market conditions can vary significantly. Don't solely rely on CPI; research local rent control laws and average rent increases in your specific area. A common mistake is not accounting for potential compounding effects over multiple years.

Example: Apartment Rent Increase Scenario

  1. 1 Step 1: Input your Current Monthly Rent ($1,500), Annual Rent Increase Rate (5%), and CPI for 2026 (2.5%).
  2. 2 Step 2: The calculator applies the 5% increase annually. For 2026, the rent becomes $1,500 * (1 + 0.05) = $1,575. The projected CPI-adjusted rent for 2026 would be $1,500 * (1 + 0.025) = $1,537.50.
  3. 3 Step 3: Your projected rent for 2026 is $1,575. After five years, your rent would be $1,914.42 (compounded).
  4. 4 Step 4: Comparing your projected rent of $1,575 for 2026 to the CPI-adjusted rent of $1,537.50 for the same year, you can see the proposed increase is higher than the general inflation rate. This provides valuable negotiation insight.

Source: BLS · Last updated: April 2026

Frequently Asked Questions

How much can a landlord raise rent?
In most US states, there is no cap on rent increases for market-rate housing. However, states and cities with rent control laws (California, Oregon, New York, etc.) limit annual increases, typically to 3-10% or CPI plus a percentage.
How much notice does a landlord have to give for a rent increase?
Most states require 30 days notice for month-to-month tenants. Some states require 60-90 days for increases above a certain percentage. Rent cannot be raised during a fixed-term lease unless the lease allows it.
Is a 10% rent increase normal?
A 10% increase is above the national average of 3-5% annually. It may be justified in hot rental markets or after years of below-market rent. In rent-controlled areas, 10% would likely exceed the legal maximum.

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