Rent Increase Calculator
Old rent & new
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- United States — state and local practice
- Scope and limitations
- Educational estimate only. U.S. real estate costs are local: property tax rates, transfer and recording taxes, title practice, who customarily pays which closing cost, and landlord-tenant rules all change by state and often by county or city. Agent commission is negotiable and, since the 2024 NAR settlement, buyer-agent compensation is negotiated separately rather than assumed. Only a lender's Loan Estimate, a title company's fee sheet or a signed contract binds a number.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter what you pay now and what the landlord is asking for.
- 02
Enter your gross monthly income so the page can check the new rent against the 30% line.
- 03
Set the length of the new lease. A two-year lease is annualized rather than treated as a one-year rise.
- 04
Read the increase, the extra per month, and what it costs across the whole lease.
- 05
Look at the projection. It shows what this pace does if it repeats at every renewal, which is the part a single percentage hides.
Formula
The increase is the new rent minus the old, as a percentage of the old. Extra per month is that difference; extra over the lease is the difference times the lease length in months. The projection annualizes first: the annual rate is (new rent / old rent) raised to the power of 12 divided by the lease months, minus one — so a two-year lease is expressed as a yearly pace rather than treated as an annual rise. Rent in year y is today's rent compounded at that annual rate, and the cumulative extra is the sum of twelve times the gap against holding today's rent flat, year by year. The lease length keeps its default with a floor of one month because a zero-month lease makes that exponent undefined.
Example
A rent going from $1,950 to $2,150 on a twelve-month lease, on $6,500 of gross monthly income. Step 1 — The increase: $200 / $1,950 = 10.3%. Step 2 — Over the lease: $200 x 12 = $2,400. Step 3 — Against income: $2,150 / $6,500 = 33.1%, which crosses HUD's 30% line into cost burdened. Step 4 — The projection. At 10.3% a year the rent reaches $5,177 in ten years, and you would have paid about $130,000 more over that decade than if the rent had stayed flat. That last figure is the point of the page. A single 10% increase is an annoyance worth $2,400. The same increase at every renewal is a different rent entirely, and nobody decides to pay $5,177 — they agree to $2,150 nine times in a row. Worth weighing against the alternative: moving would cost roughly $6,000 to $7,600 in first month, deposit, broker fee and movers, which is two and a half years of this increase.
Definitions
- Rent increase
- A rise in the monthly rent, normally at renewal. Expressed as a percentage of the current rent.
- Annualized rate
- A multi-year increase converted to a yearly rate, so a two-year lease is comparable with a one-year one.
- Rent stabilization
- Local rules capping increases on covered units. Common in a handful of cities, with wide exemptions.
- Rent control
- Stricter local caps, usually on older buildings. Distinct from stabilization and rarer.
- Notice period
- How far in advance a landlord must serve an increase — commonly 30 to 90 days, set by state law.
- Cost burdened
- HUD's term for housing taking more than 30% of gross income; severely burdened is above 50%.
- Renewal
- Continuing the tenancy for another term, usually on new terms including the new rent.
- Month-to-month
- A tenancy with no fixed end, where rent can be raised with proper notice at any time.
- Concession
- Free rent or a credit given at signing. Its expiry makes a renewal increase larger than the quoted percentage.
- Comparable listings
- What similar units nearby are actually renting for today. The strongest evidence in a negotiation.
- Turnover cost
- What a vacancy costs a landlord — cleaning, listing, showings and empty weeks. Your leverage at renewal.
- Compounding
- Increases applied to an already-increased rent. Why a modest annual rise becomes a large number over a decade.
Good to know
How much notice a landlord owes you
Federal law says nothing about rent increases in private housing; the rules are state and city. Most states require 30 days' written notice for a month-to-month tenancy, which is the same as the notice to terminate. A growing number require more for larger increases: California requires 90 days when the raise exceeds 10%, Oregon requires 90 days for any increase, Washington requires 60. Several cities go further still. Within a fixed-term lease, the rent generally cannot be raised at all until the term ends unless the lease itself contains an escalation clause — so a mid-lease increase is worth checking against the document before responding to it. The other thing notice rules do not do is cap the amount. Outside rent-stabilised units, most of the country has no ceiling, which is why a 10.3% raise is legal in most places with the right paperwork.
What rent control actually covers
Rent regulation in the US is narrow and local. Oregon and California have statewide caps — Oregon at 7% plus inflation with a hard ceiling, California at 5% plus inflation capped at 10% — and both exempt newer construction, typically anything built in the last fifteen years, plus most single-family homes and owner-occupied duplexes. New York's stabilisation covers a specific class of older buildings and sets increases through a rent guidelines board rather than a formula. Most other jurisdictions have nothing, and several states preempt their cities from enacting anything. So the first question on any large increase is whether your specific unit is covered, not whether your state has a law. If it is covered and the increase exceeds the cap, the remedy is usually a written objection citing the statute, and it works more often than people expect.
The compounding is the part people miss
A single 10.3% increase is a $200 problem. A 10.3% increase repeated is a different kind of problem: at that pace $1,950 becomes $5,177 within ten years, which is more than two and a half times the rent for the same apartment. Nobody expects a decade of double-digit increases and the projection is not a forecast — it exists to show what the rate you just accepted implies if it becomes the pattern. Even at ordinary rates the effect is substantial: 5% a year turns $1,950 into $3,176 over the same decade. This is the strongest argument for negotiating the rate rather than the amount. A landlord who will not drop $200 will often agree to a smaller increase now in exchange for a twenty-four month term, and the difference between 4% and 7% compounds far more than the first year's saving suggests.
What turnover costs the landlord, and why that is your leverage
Replacing a tenant is expensive in ways that do not appear on the increase notice. A vacant month is a full month of rent gone. Turnover cleaning and paint run several hundred to a couple of thousand dollars. Listing, showing and screening take time or a leasing fee, commonly half a month to a full month of rent. Add it up and turning over a $1,950 unit routinely costs $3,000 to $5,000 — against $2,400 a year the increase was meant to collect. That arithmetic is why a polite, specific counter works: a good payment record, a request for a smaller increase, and a willingness to sign a longer term. It is a much better position than it feels like, and it is strongest before you have said whether you are staying.
Reading the increase against your income, not against last year
The percentage is the headline and the share of income is the decision. Going from $1,950 to $2,150 on $6,500 of gross income moves you from 30% to 33.1% — across the federal cost-burden threshold, in one step, without your income changing. That is the number to weigh, because the percentage increase says nothing about whether the result is affordable. It also frames the alternative properly. Moving is not free: a deposit, first month, possibly a broker fee, movers and time off work commonly run three to five months of rent, so a move that saves $200 a month can take two years to repay. The Move-In Cost Calculator prices that side. The comparison worth making is the increase against the full cost of leaving, not the increase against zero.
Frequently asked questions
Is this increase normal?
US rent growth has run roughly 3% to 5% a year over the long term, with wide swings by market and year. Anything in that band is ordinary. A double-digit increase is not illegal in most places, but it is worth asking what changed — and worth quoting what comparable units nearby are actually renting for.
Can my landlord raise the rent by any amount?
In most of the US, yes, with proper notice at the end of a lease term. Oregon and California have statewide caps, and cities including New York, Los Angeles, San Francisco, Washington DC and several in New Jersey have rent stabilization. The exemptions are wide, though — most single-family rentals and most newer buildings are not covered.
How much notice are they required to give?
It varies by state and by tenancy length, commonly 30 to 90 days. Some states require 60 days for increases above a threshold. Check your state, because an increase served with insufficient notice is not enforceable on the date they claim.
Can I negotiate?
More often than people try. A landlord's alternative is a vacancy, a clean, a listing and a new tenant — which commonly costs one to two months of rent. Point out that you pay on time, quote comparable listings, and offer a longer lease in exchange for a smaller rise.
Should I move instead?
Run the arithmetic before deciding. Moving costs first month, deposit, possibly a broker fee, and the movers — routinely three to four times the monthly rent. An increase of $200 a month is $2,400 a year, which is often less than the move.
Why does the projection matter so much?
Because a percentage is easy to shrug at and a decade is not. Ten percent once is $200 a month. Ten percent at every renewal reaches $5,177 from $1,950 inside ten years — the same rent more than doubled, from a series of increases that each felt survivable.
How is a two-year lease handled?
The increase is annualized. A 10% rise over two years is roughly 4.9% a year, not 10% a year, and the projection uses the annual figure. Comparing a two-year increase against a one-year one without that step overstates it substantially.
What if this pushes me over 30% of income?
The page flags it and names the amount. Crossing 30% is common and survivable; crossing 50% is where HUD counts you as severely cost burdened and where the budget stops absorbing surprises. If the new rent lands there, treat it as a decision rather than a bill.
Do concessions change this?
Considerably, and this is where renewals sting most. If your first year had a free month, your effective rent was lower than the number on the lease, so a renewal quoted off the gross rent is a much bigger jump than it looks. The Net Effective Rent Calculator shows the real figure.
Can they raise the rent mid-lease?
Not on a fixed-term lease unless the lease itself allows it. Month-to-month is different — the rent can be raised with proper notice at any point. If you are on a lease and receive an increase before it ends, check the term dates first.
Is a smaller increase for a longer lease a good trade?
Usually, if you are confident you will stay. A two-year lease at a 4% rise beats two one-year leases at 6% each, and it removes a year of uncertainty. The cost is flexibility, and breaking a lease is expensive.
What if I just refuse?
At the end of a term, refusing an increase generally means the tenancy ends — the landlord is not obliged to renew on the old terms. Negotiating from a position of wanting to stay works far better than declining and hoping.