The 1% Rule and 50% Rule for Rental Properties

The 1% rule says a rental's monthly rent should be at least 1% of what you pay for it, so a $200,000 house should rent for $2,000 or more. The 50% rule says to assume that operating expenses, everything except the mortgage payment, will take half of that rent. Both are screens for deciding which listings deserve a full analysis, not proof that a property will make money. At the 7.32% average 30-year mortgage rate Freddie Mac reported for October 22, 2026, a house that exactly meets the 1% rule, bought with 25% down, comes up about $30 a month short of its loan payment under the 50% rule.

How the 1% and 2% rules work

Divide the expected monthly rent by your all-in cost: the purchase price plus any repairs needed before a tenant can move in. A $160,000 house that needs $15,000 of work and will rent for $1,750 scores exactly 1% ($1,750 divided by $175,000). The 2% rule is the same test with a higher bar, such as a $75,000 house renting for $1,500. Neither ratio accounts for property taxes, insurance, repairs, or your interest rate, which is why the 50% rule usually comes next.

A 1% ratio is well above average. In the 2024 Rental Housing Finance Survey by the Census Bureau and HUD, single-unit rentals averaged $1,651 a month in rent against an average owner-estimated value of $413,000, a ratio of 0.4%. When a listing passes 1%, and especially 2%, find out why its price is low relative to its rent (condition, location, taxes, or a rent estimate that is too high) before you trust the result.

What the 50% rule covers

The 50% rule sets operating expenses at half of gross rent. The other half is net operating income (NOI), which has to cover the mortgage payment; whatever is left after that is your cash flow. The 50% is meant to pay for:

• property taxes and insurance
• repairs, maintenance, and savings for replacing roofs, furnaces, and appliances (capital expenditures)
• vacancy and unpaid rent
• property management, even if you manage the property yourself
• owner-paid utilities, HOA dues, lawn care, legal, and accounting

It does not include mortgage principal and interest or your income taxes.

On national averages, routine costs and vacancy alone use up the 50%. Owners of single-unit rentals in the same survey spent an average of $8,670 per unit on operating costs in 2023 (including taxes, insurance, utilities, repairs, management, and legal and accounting fees), 44% of the survey's average rent of $19,812 a year. A vacancy allowance at the 7.3% national rental vacancy rate for the second quarter of 2026 brings the total to about 51%. Capital improvements, such as a new roof or heating system, were counted separately and averaged another $5,383 per unit, about 27% of the rent, though with a wide margin of error (plus or minus $2,773). Budget for those replacements beyond the 50% when a roof, furnace, or water heater is near the end of its life.

Worked example: both rules on one house

A house priced at $200,000 that will rent for $2,000 a month passes the 1% rule exactly. Apply the 50% rule and a 30-year fixed loan with 25% down:

At 4%, the same loan costs $716 a month and the house produces $284 of cash flow. With 25% down and half the rent left after expenses, the rent needed to break even depends only on the interest rate:

Below about 7%, a property that exactly meets the 1% rule shows cash flow under these assumptions; above it, a loss. With 20% down instead of 25%, break-even rent at 7.32% rises to 1.10% of the price.

Freddie Mac's average covers owner-occupied homes bought with 20% down by borrowers with good or excellent credit. On an investment-property purchase, Fannie Mae charges the lender a one-time loan-level price adjustment of 2.125% of the loan amount with 25% down, or 3.375% with 20% down, on top of its credit-score charges, so expect a higher rate or more points (upfront fees paid to lower the rate) than that average. Use your lender's actual quote in the calculation.

When the 1% rule gives a misleading answer

• In low-priced areas. Low property values often come with high tax rates. In the Lincoln Institute of Land Policy's April 2026 property tax study, Detroit had both the lowest median home value and the highest effective tax rate of the largest cities in each state. Check the tax bill before you trust a 2% ratio.
• In high-priced markets. Where typical rents are well below 1% of prices, as the national average of 0.4% is, the screen rejects properties that could work with more cash down. Bought for cash, a house renting for 0.6% of its price keeps 0.3% of the price each month under the 50% assumption, 3.6% a year. Buyers there may also accept low monthly income in exchange for expected price growth, a tradeoff covered in appreciation vs cash flow.
• When the rent estimate is wrong. An inflated rent estimate lets a listing pass that should fail. How to analyze a rental property market lists free sources for rents and vacancy by metro area and neighborhood.

When the 50% rule is off: taxes, insurance, utilities, and vacancy

A single percentage cannot reflect costs that differ by thousands of dollars a year from one market to the next:

• Property taxes. The Lincoln Institute study found effective tax rates (the yearly tax bill as a share of value) on a median-valued home ranging from 0.30% in Honolulu to 3.07% in Detroit in 2025. On a $200,000 house, Nashville's 0.70% comes to $117 a month, 6% of a $2,000 rent, and Baltimore's 2.20% comes to $367, 18% of the rent. Those rates are for homes their owners live in. A rental does not get a homestead exemption (a tax break for an owner's primary home), and in 37 of the 53 cities studied the law taxes apartment buildings more heavily than owner-occupied homes; on average, apartments faced effective rates 46% higher.
• The seller's tax bill. Where a state caps yearly increases in assessed value, the cap typically resets when the property sells, so the current owner's bill can understate yours. In Miami, a buyer of a median-valued home faces an effective tax rate 3.2 times that of an owner who bought an identically valued home in 2012.
• Insurance. Treasury's Federal Insurance Office found that from 2018 to 2022, homeowners in the 20% of ZIP codes with the highest expected losses from hurricanes, wildfires, and other climate-related hazards paid an average of $2,321 a year per policy, adjusted for inflation, 82% more than in the lowest-risk 20%. Most homeowners policies exclude flood, which needs its own policy.
• Utilities and building age. The Office of the Comptroller of the Currency (OCC), which supervises national banks, tells its examiners that apartment operating expenses usually run 35% to 45% of revenue, with older buildings and those where the landlord pays for heat, water, or electricity at the upper end. Price any owner-paid utilities from the seller's bills instead of assuming the 50% absorbs them.
• Vacancy. In the second quarter of 2026, the rental vacancy rate was 7.3% nationally, 9.5% in the South, and 5.3% in the West, so set the allowance from the rate where you are buying.

The rule can overstate expenses for a newer house with low taxes, no HOA, and tenant-paid utilities. Once you own rentals, replace the 50% with the expense ratio from your own records, plus an amount for future replacements.

Replacing both rules with real numbers

For a property that passes the screen:

1. Look up the current tax bill on the county assessor's or treasurer's website, note any homestead exemption or assessment cap, and ask the assessor what the bill will be at your purchase price once you own it.
2. Get a landlord insurance quote for the address, plus a flood quote if the property is in a high-risk flood zone.
3. Confirm which utilities the tenant pays and whether there are HOA dues.
4. Set a replacement budget from the age of the roof, heating and cooling system, and water heater.
5. Put these figures and your lender's rate quote into a rental property cash flow calculation, then compare the result with the cash you put in using cash-on-cash return.

The inspection, financing, and closing steps that follow are in how to buy your first rental property.