Investment Metrics
The 1% Rule in Real Estate: How It Works and When to Trust It
A thirty-second screen for rental listings, and the reason it should never be the last number you look at.
Rules of thumb survive because they save time. The 1% rule survives because it compresses the most important relationship in rental investing, rent against price, into a check you can do from a listing page. This guide covers the formula, the expense math that makes it roughly work, a worked example that passes the rule and still loses money, and how to use the rule in a market where very little clears it.
What the 1% rule says
The 1% rule states that a rental property's gross monthly rent should be equal to or greater than 1% of its total acquisition cost. Total cost means the purchase price plus any repairs needed before the property can be rented.
Monthly rent ≥ (Purchase price + Repairs) × 1%
A $200,000 property that needs no work has to rent for at least $2,000 a month.
The same relationship is often written as a rent-to-price ratio: monthly rent divided by price. A property renting for $1,700 at a $200,000 price sits at 0.85%. Below the line, but not by much, and in most 2026 markets a respectable figure.
The rule is silent about everything else: the interest rate on your loan, the property tax bill, the cost of insurance, whether there is an HOA. That silence is the source of both its speed and its blind spots.
Why 1% is the number
The threshold is not arbitrary. It comes from what a typical rental spends, expressed as a share of rent. When rent is 1% of price, the mortgage on an 80% loan absorbs roughly half of it, and the operating expenses take most of the rest.
| Expense | Typical share of rent | What drives it |
|---|---|---|
| Mortgage principal and interest | 45% to 55% | Interest rate, down payment, loan term |
| Property taxes | 8% to 20% | State and county, often 1% to 2.5% of value a year |
| Insurance | 4% to 10% | Coastal, wind and flood exposure |
| Vacancy | 5% to 8% | Local demand, tenant turnover |
| Maintenance and repairs | 5% to 10% | Age and condition of the property |
| Property management | 8% to 10% | Only if you do not self-manage |
Shares are typical ranges for single-family rentals financed at 2025 to 2026 mortgage rates. Add them up and 85% to 100% of rent is spoken for.
That arithmetic is why the rule roughly identifies properties that break even or better. It is also why the rule is fragile: two of the biggest lines, taxes and insurance, vary by a factor of three between states, and the rule cannot see either of them.
A worked example: passing the rule and losing money
Take two single-family houses, each priced at $150,000 and each renting for $1,500 a month. Both meet the 1% rule exactly. Both are financed the same way: 20% down, a $120,000 loan at 7% for 30 years, which costs $798 a month in principal and interest.
Property A: a low-tax Midwest market
- Monthly rent
- $1,500
- Principal and interest$120,000 at 7%, 30 years
- −$798
- Property taxes$2,700 a year
- −$225
- Insurance
- −$100
- Vacancy (5%)
- −$75
- Maintenance (8%)
- −$120
- Management (8%)
- −$120
- Monthly cash flow
- +$62
Property B: the same numbers in a high-tax, high-insurance state
- Monthly rent
- $1,500
- Principal and interest
- −$798
- Property taxes$3,600 a year
- −$300
- Insurance
- −$150
- Vacancy (5%)
- −$75
- Maintenance (8%)
- −$120
- Management (8%)
- −$120
- Monthly cash flow
- −$63
What the rule looks like at 2026 prices
Rent does not scale with price. A house that costs three times as much does not rent for three times as much, so the rent-to-price ratio falls as the price band rises. That single fact explains where the rule still works and where it never will.
| Price band | Typical rent | Rent-to-price | Clears 1%? |
|---|---|---|---|
| $120,000 | $1,250 | 1.04% | Yes |
| $200,000 | $1,750 | 0.88% | Close |
| $350,000 | $2,300 | 0.66% | No |
| $550,000 | $2,900 | 0.53% | No |
| $900,000 | $4,000 | 0.44% | No |
Illustrative figures. Check current rents against comparable listings in the ZIP code you are screening.
The practical consequences: the rule works as written in cash flow markets such as Cleveland, Memphis, Birmingham and parts of Indianapolis, and in the lower price band of most other metros. It fails as written in Austin, Denver, Tampa and every coastal metro, where investors buy for appreciation and screen at 0.6% to 0.8% instead.
Small multifamily is the other place the rule still holds. A duplex or fourplex stacks two to four rents on one purchase price, which is why the same neighborhood that cannot produce a 1% single-family house often produces a 1% fourplex.
How to use the 1% rule without being misled by it
Used well, the rule is a filter that keeps you from running full numbers on listings that could never work. Used badly, it is a reason to buy a property that the numbers would have rejected. Four habits keep it on the right side of that line.
Pick a threshold for your market, not the textbook
Screen at 1% in a cash flow market and at 0.7% to 0.8% in an appreciation market. The rule is a ranking tool. What matters is that you apply the same line to every listing you compare.Use the all-in price and a real rent
Add the repair budget to the price before you divide. Estimate rent from three or more comparable listings, not the listing agent's projection. Our guide to estimating rent walks through the method.Run cash-on-cash return on everything that passes
Pull the tax bill, quote insurance, confirm any HOA dues and finance the deal at today's rate. Cash-on-cash return is the number that includes what the rule leaves out.Let the rule reject, never approve
A failing ratio in a cash flow market is a reason to move on. A passing ratio is only a reason to keep analyzing. The worked example above is what happens when a pass is treated as a decision.
Screening one listing at a time is where most investors stop applying the rule, because dividing rent by price for forty listings is tedious. The faster approach is to screen the whole ZIP code at once and read the ratio off a ranked list.
Example uses public listing data for illustration. See disclaimer.
The metrics that finish the job
The rule answers one question: is the rent large enough relative to the price to be worth a closer look? Three other metrics answer the questions that actually decide a purchase.
| Metric | What it measures | What it ignores | Typical target |
|---|---|---|---|
| 1% rule | Rent relative to price | Taxes, insurance, HOA, financing | 1% (0.7% to 0.8% in costly metros) |
| Cash-on-cash return | Annual cash flow on the cash you invested | Appreciation and loan paydown | 8% or higher |
| Cap rate | Net operating income relative to price, before financing | Your loan terms | 5% to 8%, market dependent |
| DSCR | Net operating income relative to the annual mortgage payment | Your equity and cash flow after debt | 1.25 or higher for most lenders |
A full analysis lists every one of those expense lines against the rent estimate, so the difference between Property A and Property B above is visible before you write an offer.
Example uses public listing data for illustration. See disclaimer.
The 1% rule earns its place at the start of that process. It has no place at the end of it.
Frequently asked questions
Is the 1% rule still realistic in 2026?
In most metros, no. Prices rose faster than rents from 2020 onward, so a typical single-family listing rents for 0.5% to 0.8% of its price. Properties that clear 1% still exist in Midwest and Southern cash flow markets and in the lower price bands of most others, but they are the exception. Treat 1% as a strong screen, not a market norm.
Does the 1% rule include repair costs?
Yes. Use the all-in price: purchase price plus the repairs needed to make the property rentable. A $140,000 house that needs $20,000 of work has to rent for $1,600 a month to meet the rule, not $1,400.
What is the difference between the 1% rule and the 2% rule?
Same formula, stricter threshold. The 2% rule asks for monthly rent equal to 2% of the price, which today is reached almost only by very low-priced properties and small multifamily. It dates from a period of much lower prices and is rarely a useful screen now.
Does a property that meets the 1% rule always cash flow?
No. The rule ignores property taxes, insurance, HOA dues and your financing. At a 7% mortgage rate with 20% down, a property at exactly 1% often lands near break-even once taxes, insurance, vacancy, maintenance and management are counted. High-tax or high-insurance states can push it negative.
What should I use instead of the 1% rule?
Use it first, then run cash-on-cash return on anything that passes. Cash-on-cash counts every expense and your actual down payment, so it tells you what the deal returns on the money you put in. Cap rate and DSCR add the unlevered and lender views.
Keep reading
The 2% Rule for Rental Properties
The stricter version of the same screen, and where it still applies.
Read articleHow to Calculate Cash-on-Cash Return
The metric to run on every property that passes the 1% screen.
Read articleCash Flow vs Cap Rate
Which return metric answers which question, with examples.
Read articleHow to Estimate Rent for an Investment Property
The rent figure is the whole rule. Here is how to get it right.
Read articleScreen a whole ZIP code instead of one listing
Smart Rental Investor ranks every listing in a ZIP by cash-on-cash return, with rent estimated from nearby comparables and every expense line already filled in. The 1% screen and the full analysis, in one pass.
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