Rent Increase Calculator
This rent increase calculator turns a percent, fixed amount, or proposed new rent into monthly, annual, and lease-term cost before you answer a renewal notice or counter a rent change.
Rent Inputs
Rent Change Summary
New monthly rent
$1,575.00
Current rent $1,500.00; monthly change $75.00 (5%).
Monthly change
$75.00
Annual impact
$900.00
12-month impact
$900.00
Detailed BreakdownShow details
Current vs new totals
- Current monthly rent
- $1,500.00
- New monthly rent
- $1,575.00
- Current annual rent
- $18,000.00
- New annual rent
- $18,900.00
Budget view
- Weekly equivalent
- $17.31
- Daily equivalent
- $2.47
- 12-month total at current rent
- $18,000.00
- 12-month total at new rent
- $18,900.00
Current-input formula review
Percentage mode: New rent = current rent x (1 + increase percent / 100)
- Current rent: $1,500.00
- Monthly change: $1,500.00 x 5% = $75.00
- New rent: $1,500.00 + $75.00 = $1,575.00
- Annual impact: $75.00 x 12 = $900.00
- 12-month impact: $75.00 x 12 = $900.00
Use Scenarios
Lease renewal
Review a renewal notice before you respond
Run the current rent through this rent increase calculator when a landlord or property manager sends a new offer so you can see the monthly and annual cost before you accept, counter, or move on.
Offer comparison
Compare percent and flat-dollar proposals
Use one page to compare a 5% increase, a $125 monthly increase, or a single proposed new rent so you can see which offer is actually lighter on your budget.
Budget planning
Estimate next-term housing cost before you commit
Project the cost of the new rent across 6, 12, or 24 months to judge whether the updated lease still fits your savings plan, emergency buffer, or moving budget.
Formula Explanation
Mode 1
Percentage increase
New rent = current rent x (1 + increase % / 100)
Use this when the notice gives you a rate, such as 5%. The calculator turns that rate into the monthly dollar change and the new monthly rent.
Mode 2
Flat monthly change
New rent = current rent + rent change
Use this when the offer says your rent will rise by a fixed dollar amount. The page then computes the implied percentage change from the same monthly base.
Mode 3
Proposed new rent
Change % = (new rent - current rent) / current rent x 100
Use proposed new rent mode when you only know the final monthly rent and want to see how large the increase is in both dollars and percentage terms.
Roll-up
Annual and lease-term cost
Annual impact = monthly change x 12; lease-term impact = monthly change x months
Once the page knows the monthly change, it rolls that number forward so you can compare the annual budget impact and the total added cost over the selected lease term.
How to Read the Result
Primary output
New monthly rent
Treat the new monthly rent as the number you would actually pay if the offer takes effect. That is the quickest way to compare the renewal with your current rent or with another apartment option.
Budget output
Monthly, annual, and lease-term impact
The change amount shows the extra monthly cost first, then the page rolls it into annual and full-term totals so you can judge the bigger planning effect.
Planning detail
Weekly and daily equivalents
Weekly and daily outputs are simple budget translations of the same monthly change. They are helpful for checking spending pressure, but they are not contract proration rules.
Example Cases
Worked example
Case 1: 5% renewal on a $1,600 apartment
Inputs
- Current rent: $1,600.00
- Mode: Percentage increase
- Entered increase: 5%
- Lease term: 12 months
Computed Results
- New monthly rent: $1,680.00
- Monthly increase: $80.00
- Annual impact: $960.00
- Lease-term impact: $960.00
Interpretation
A moderate percentage increase can still add a four-figure amount over one lease term, even when the monthly jump looks manageable at first glance.
Decision Hint
Use a baseline like this to compare whether a small negotiated reduction in the percentage would materially change your annual housing budget.
Worked example
Case 2: Flat $125 increase on a higher-rent unit
Inputs
- Current rent: $2,450.00
- Mode: Dollar amount change
- Entered change: $125.00
- Lease term: 18 months
Computed Results
- New monthly rent: $2,575.00
- Monthly increase: $125.00
- Annual impact: $1,500.00
- Lease-term impact: $2,250.00
Interpretation
Flat-dollar offers are easy to read, but they can look smaller than they really are until you multiply the change across the full renewal period.
Decision Hint
When the landlord quotes a fixed monthly change, compare the lease-term total with moving costs instead of only comparing the next month.
Worked example
Case 3: Counteroffer based on a proposed new rent
Inputs
- Current rent: $1,850.00
- Mode: Proposed new rent
- Entered new rent: $1,980.00
- Lease term: 24 months
Computed Results
- New monthly rent: $1,980.00
- Monthly increase: $130.00
- Annual impact: $1,560.00
- Lease-term impact: $3,120.00
Interpretation
Working backward from a proposed new rent helps you see the true percentage increase before you respond to a renewal or counteroffer.
Decision Hint
Use proposed new rent mode when you want to test whether a lower counteroffer keeps the percentage increase closer to your budget target.
Boundary Conditions
Sources & References
- Consumer Financial Protection Bureau - Track your spending with this easy toolUsed for the budgeting guidance on comparing a rent change with broader monthly spending instead of reviewing the base rent in isolation.
- Consumer Financial Protection Bureau - Bill Calendar: Know what you owe and when it's dueUsed to support the planning note that a higher monthly rent should be checked against the timing of other bills and cash-flow obligations.
- Consumer Financial Protection Bureau - Help for rentersUsed for the renter next-step guidance when the new rent number does not fit the budget and the user needs to weigh alternatives beyond the calculator.