Rent Increase Percentage Calculator
Enter your current and new rent to see the exact percentage increase, instantly, plus how it compares to your local market.
Last updated 2026-09-29
How this is calculated
The math is simple: subtract your current rent from the new price, then divide by your current rent and multiply by 100.
(new rent − old rent) ÷ old rent × 100 = percentage increase
So a jump from $1,800 to $1,950 is a $150 increase, and $150 ÷ $1,800 × 100 = 8.3%. The dollar amount matters for your budget, but the percentage is what's actually comparable to market data and rent-control caps, and it's what other renters in your area are seeing too. That's why lease renewal notices and rent-control laws are almost always written in percentage terms, not dollar amounts.
Common rent increases at a glance
Not sure how your specific numbers stack up? Here's the percentage increase for common current rents against common dollar increases, calculated the same way as the tool above:
| Current rent | +$50 | +$100 | +$150 | +$200 | +$300 | +$500 |
|---|---|---|---|---|---|---|
| $1,000 | 5.0% | 10.0% | 15.0% | 20.0% | 30.0% | 50.0% |
| $1,250 | 4.0% | 8.0% | 12.0% | 16.0% | 24.0% | 40.0% |
| $1,500 | 3.3% | 6.7% | 10.0% | 13.3% | 20.0% | 33.3% |
| $1,750 | 2.9% | 5.7% | 8.6% | 11.4% | 17.1% | 28.6% |
| $2,000 | 2.5% | 5.0% | 7.5% | 10.0% | 15.0% | 25.0% |
| $2,250 | 2.2% | 4.4% | 6.7% | 8.9% | 13.3% | 22.2% |
| $2,500 | 2.0% | 4.0% | 6.0% | 8.0% | 12.0% | 20.0% |
| $2,750 | 1.8% | 3.6% | 5.5% | 7.3% | 10.9% | 18.2% |
| $3,000 | 1.7% | 3.3% | 5.0% | 6.7% | 10.0% | 16.7% |
| $3,250 | 1.5% | 3.1% | 4.6% | 6.2% | 9.2% | 15.4% |
| $3,500 | 1.4% | 2.9% | 4.3% | 5.7% | 8.6% | 14.3% |
| $3,750 | 1.3% | 2.7% | 4.0% | 5.3% | 8.0% | 13.3% |
| $4,000 | 1.3% | 2.5% | 3.8% | 5.0% | 7.5% | 12.5% |
What counts as a normal increase?
Nationally, rent increases have typically landed in roughly the 3–5% range in recent years, though this shifts with local supply, demand, and inflation. Whether a specific number is "normal" also depends on your state and city. Some places cap increases by law, and even where there's no cap, local market conditions set the practical ceiling. See California renter rights for the specifics where you live.
What will my rent be in a few years?
Landlords typically raise rent once a year, at renewal, and each increase compounds on the previous year's rent, not your original one. If your rent grows by the same percentage every year, the formula is:
future rent = current rent × (1 + annual rate) years
For example, a $1,800/month apartment increasing 5% every year would be $1,800 × 1.05 after year one, then that new number × 1.05 again the year after, and so on. Worked out across a few realistic rates and time horizons, starting from the same $1,800:
| Annual increase | 1 year | 3 years | 5 years | 10 years |
|---|---|---|---|---|
| 3.0% / year | $1,854 | $1,967 | $2,087 | $2,419 |
| 5.0% / year | $1,890 | $2,084 | $2,297 | $2,932 |
| 8.0% / year | $1,944 | $2,267 | $2,645 | $3,886 |
Starting rent: $1,800/month. Each column compounds on the previous year's rent, not the original amount.
The gap between a "typical" 3% annual increase and a "high" 8% one looks small in year one, but compounds fast: over ten years, on the same starting rent, it's the difference between paying about $2,419 and $3,886 a month.
Rent increase rules by state
Whether a specific increase is legal depends heavily on where you live. A handful of states cap increases by percentage, most have no cap at all, and a couple split the rule by unit type. Here's how it breaks down across the largest renter states:
| State | Statewide cap | Notice required | Notes |
|---|---|---|---|
| California | Capped at 5% plus local inflation, up to a hard ceiling of 10% total in any 12-month period. | 30 days’ written notice for increases up to 10%; 60 days’ notice for increases over 10%. | LA, SF, Oakland and other cities apply their own, often stricter, local caps. |
| New York | Depends on the unit: rent-stabilized apartments follow annual caps set by a Rent Guidelines Board; market-rate units have no percentage cap. | For increases over 5% (or any non-renewal): 30 days’ notice under 1 year of tenancy, 60 days’ for 1–2 years, 90 days’ for 2+ years. | Only rent-stabilized units are capped; most of the state is market-rate with no cap. |
| Texas | No statewide cap | No state-mandated notice period for a rent increase at renewal; 30 days’ notice is standard practice to end or change a month-to-month tenancy. | State law bars any local rent control. |
| Florida | No statewide cap | At least 30 days’ written notice before the end of a monthly rental period to change the terms of a month-to-month tenancy, including rent. | State law bars any local rent control. |
| Washington | Capped at 7% plus CPI or 10% total, whichever is lower, once per 12-month period (5% for manufactured-home lots), under a law effective May 2025. | 90 days’ written notice before a rent increase takes effect (30 days for subsidized tenancies). | New statewide cap effective May 2025; exempt if occupancy certificate is 12 years old or newer. |
| Oregon | Capped at 7% plus CPI or 10% total, whichever is lower, once per 12-month period. | 90 days’ written notice before a rent increase takes effect, regardless of tenancy length. | Statewide cap preempts local rent control; exempt if building is under 15 years old. |
| Illinois | No statewide cap | At least 30 days’ written notice to end or change a month-to-month tenancy of under one year (7 days for a week-to-week tenancy; Illinois has no rent-increase-specific notice statute). | State law bars local rent control, even in Chicago. |
| New Jersey | No statewide cap; roughly 1 in 5 municipalities (including Jersey City and Newark) have their own local rent-control ordinances. | One full month’s written notice to end or change a month-to-month tenancy (longer in municipalities with their own rent-control notice rules). | ~1 in 5 cities, including Jersey City and Newark, have local rent control. |
| Massachusetts | No statewide cap | Notice to change terms (including a rent increase) on a monthly tenancy-at-will must equal the rental period or 30 days, whichever is longer — in practice, 30 days. | Statewide ban on rent control since a 1994 voter referendum. |
| Colorado | No statewide cap | At least 60 days’ written notice before any rent increase, for a tenancy with no written lease. (No statutory tier changes this based on the size of the increase.) | State law bars local rent control statewide. |
| Georgia | No statewide cap | Georgia has no rent-increase-specific notice statute; the closest proxy is the tenancy-at-will rule requiring 60 days’ notice from the landlord to end a month-to-month tenancy. | State law bars local rent control. |
| Arizona | No statewide cap | Arizona has no rent-increase-specific notice statute; the proxy is the month-to-month termination rule requiring at least 30 days’ written notice before the next rental period. | State law bars local rent control. |
| North Carolina | No statewide cap | North Carolina has no rent-increase-specific notice statute; the proxy is the month-to-month termination rule, which requires only 7 days’ notice — notably short compared to most states. | State law bars local rent control; notably short 7-day notice proxy. |
| Pennsylvania | No statewide cap | Pennsylvania has no statewide rent-increase-specific notice statute; the proxy is the notice-to-quit rule at lease expiration: 15 days’ notice for a lease of one year or less, 30 days’ for a longer lease. | No local rent control currently in effect anywhere in the state. |
| Nevada | No statewide cap | At least 60 days’ written notice before a rent increase for a monthly tenancy (30 days’ notice for a tenancy shorter than one month). | No statewide ban on local rent control, but none currently exists. |
General summaries as of 2026-09-29, covering the states with the largest renter populations. Not legal advice, and many cities layer their own, often stricter, rules on top of state law -- see each state's citation in its full write-up where one exists.
→ Wondering about a specific dollar amount instead of a percentage? See what a $300 increase means at different rents
What to do if yours is above average
An increase can be entirely legal and still negotiable. Leasing offices build in room to move, especially if you've paid on time, plan to renew (not move), or can point to comparable units nearby renting for less. CounterWise checks your new price against real market data for your building and area, then builds a negotiation email around the strongest case available.
See where your renewal actually stands
Free market comparison and a negotiation strategy built around your real numbers. Takes about two minutes.
Check My Renewal →About our data: Market rent figures come from live rental listings and, where a ZIP has too few to be reliable, HUD fair-market-rent data as a fallback. Legal figures (caps, notice periods) are compiled from the specific state statutes cited throughout this page, current as of 2026-09-29. Rent law changes and varies further by city, so always confirm current rules with a local tenant rights organization or attorney before relying on them.