Rent increase calculator

Annual Rent Increase Calculator

Calculate the yearly effect of a monthly rent increase.

Estimated new rent

$2,100.00

This estimates the math impact. Lease terms and local rules can change whether an increase is allowed.

Monthly increase
$100.00
Annual rent before
$24,000.00
Annual rent after
$25,200.00

How this calculator works

The calculator applies the entered increase percentage to the current monthly rent. It shows the new monthly rent, monthly change, annual rent before, and annual rent after so the increase is visible beyond one payment.

When to use this page

Use it to check renewal offers, rent notices, budget changes, CPI-linked clauses, scheduled increases, or before-and-after rent math before you decide whether to move, negotiate, or ask for clarification.

What this result does not include

This is arithmetic only. It does not decide whether a rent increase is allowed, whether notice is valid, whether a unit is exempt, whether local caps apply, or whether fees and utilities can change separately.

  • Check whether the amount is a fixed increase, percentage increase, CPI-linked increase, or scheduled escalation.
  • Confirm whether the rent amount excludes separate fees, utilities, parking, or service charges.
  • For regional pages, verify current official rules before using the result in a dispute or notice response.

How to read the result

The monthly change shows the immediate payment impact. The annual before-and-after amounts show the full-year impact, which is usually the better number for deciding whether a renewal offer, CPI adjustment, or escalation clause fits your budget. If rent is paid weekly, fortnightly, or every 4 weeks, convert the new monthly rent before comparing payment-cycle cash flow.

Before acting on an increase

Use the calculator to check the arithmetic, then compare the result with the lease clause or rent notice. A correct percentage calculation does not prove that the increase is permitted or that every required notice step was followed.

Worked examples

Lease renewal decision

A small monthly increase becomes a larger yearly cost once it repeats for 12 payments. That yearly number is easier to compare with moving costs or a salary change.

Before and after rent

Use the old rent, new rent, and percentage change together when checking whether a notice, renewal offer, or budget worksheet matches the math.

This page estimates rent math only. Local rules, notice requirements, lease terms, and allowable increases can change, so check the official tenancy authority for your location.

Frequently Asked Questions

Does this decide whether an increase is legal?
No. It estimates the math only. Check your lease and official local tenancy source for legal rules.
Can I use a fixed dollar increase?
Use the related rent increase calculator for fixed-dollar changes, or enter a percentage here when the page is percentage based.