Rent Increase Calculator
New rent and yearly extra from a percent rise.
What it does
A rent rise is base rent times one plus percent. Small percents still bite across twelve months: 3% on $1,500 is $45 a month and $540 a year. Tenants budget the year while owners test the market, so both sides need the same three numbers.
The tool above prints new rent, monthly rise, and yearly extra. Defaults give $1,545.00 with $45.00 more, while a 5% case on $2,000 gives $2,100.00 with $100.00 more. Caps, leases, and notice windows can overrule the arithmetic, so confirm those before quoting.
Index series such as CPI rent help explain market context but do not set any single lease. Local ordinances, rent stabilization, and lease clauses decide what can actually be charged and when notice must land. Mid month changes need daily proration on top.
This page models one percent step on base rent. It does not compound multiple years, split roommates, or add fees and utilities.
How to use
- Enter the current monthly base rent.
- Enter the rise percent for this step.
- Read the new monthly rent first.
- Read the dollar rise per month.
- Read the yearly extra cost.
- Check caps and notice periods before sending.
Formula
- rent
- Current base rent per month in dollars.
- pct
- One step rise in percent, 0 to 100.
- annual
- Extra cost over 12 months at the new rent.
Straight percent applied to base rent for one step. At zero percent nothing changes. Compound multi year rises apply year by year, and caps may bind below the math.
Worked example
Example: $1,500 rent up 3%
Defaults: $1,500 rent with a 3% increase. Check local caps and notice rules before applying.
- Inputs: $1,500 current rent with 3% rise.
- Rise: 1500 times 0.03 is $45.00 more.
- New rent: 1500 plus 45 is $1,545.00 per month.
- Yearly extra: 45 times 12 is $540.00 per year.
- A 5% case on $2,000 gives $2,100.00 with $100.00 more. Tool shows the same.
Reference table
| Rent and rise | New rent | Yearly extra |
|---|---|---|
| $1,500 up 3% | $1,545.00 | $540.00 |
| $2,000 up 5% | $2,100.00 | $1,200.00 |
| $1,200 up 2% | $1,224.00 | $288.00 |
| $1,000 up 0% | $1,000.00 | $0.00 |
| $2,500 up 10% | $2,750.00 | $3,000.00 |
Limits
- One step only. Multi year needs compounding.
- Base rent only. Fees and utilities excluded.
- Caps ignored. Ordinances may bind.
- No proration. Mid month needs daily math.
Common mistakes
- Applying percent to yearly rent instead of monthly.
- Adding percent points as dollars.
- Forgetting 12x on the yearly extra.
- Ignoring caps and notice rules.
- Quoting without the lease renewal date.
Try it yourself
Quick checks. Answers sit tucked under each question.
$2,000 rent up 5%?
Rise is 2000 times 0.05 is $100.00 more. New is $2,100.00 per month with $1,200.00 per year extra.
$1,200 rent up 2%?
Rise is 1200 times 0.02 is $24.00 more. New is $1,224.00 per month with $288.00 per year extra.
Questions
How is the new rent figured?
New = rent times (1 plus pct/100). Here 1500 times 1.03 is $1,545.00 per month.
How is the dollar rise figured?
Rise = rent times pct/100. Here $45.00 more, or $540.00 per year.
Does CPI set my rent?
CPI rent series track market moves, but caps and leases rule what can be charged.
Can rent rise any amount?
No. Many cities cap yearly rises and require written notice. Check the local ordinance first.
What about a mid month rise?
Prorate by days occupied over days in the month. Mid month moves need daily math.
Does this include fees?
No. Utilities, fees, and deposits are separate. This is base rent only.