Two quick rules
Most advice boils down to two rules. The 30% rule says rent should be at or below 30% of your gross monthly income. The 3x rule, used by many landlords, says your gross monthly income should be at least three times the rent. They're close cousins. The 3x rule works out to rent of about 33% of gross income, a bit looser than 30%.
The 30% figure has a long history. HUD notes that the affordable rent standard for federally subsidized housing rose from 20% of income in the 1940s to 25% in 1969 and 30% in 1981. Today, households paying more than 30% of income for housing are described as cost burdened.
What the rules say at different incomes
Here's the most rent each rule allows at a few gross monthly incomes. Divide annual pay by 12 to find yours.
- $3,000 a month ($36,000 a year): $900 at 30%, $1,000 at 3x
- $4,000 a month ($48,000 a year): $1,200 at 30%, $1,333 at 3x
- $5,000 a month ($60,000 a year): $1,500 at 30%, $1,667 at 3x
- $6,500 a month ($78,000 a year): $1,950 at 30%, $2,167 at 3x
- $8,000 a month ($96,000 a year): $2,400 at 30%, $2,667 at 3x
Why the rules can mislead you
Both rules use gross pay, but rent comes out of take-home pay. Taxes, retirement contributions and health premiums can take a big bite before you see a dime. Two people earning the same salary can have very different budgets once debt and childcare are counted.
The rules also look at rent alone. Required fees, utilities and renter insurance can add hundreds a month. In one example, $1,500 rent became $1,800 of housing cost once $60 of fees, $220 of utilities and $20 of insurance were added.
Build the number from your budget
Start with take-home pay. Subtract debt payments, essentials like food and transport, and what you want to save. What's left is the most you can spend on housing. Then subtract fees, utilities and insurance to find the rent that fits.
Take $5,000 of take-home pay, $400 of debt, $1,250 of essentials and $600 of savings. That leaves $2,750. Take off $300 of non-rent housing costs and the budget says rent up to $2,450 still balances. But if you also want housing to stay under 40% of take-home pay, the ceiling drops to $1,700. Our rent calculator runs all of these checks at once and tells you which one is tightest.
Costs renters forget
The FTC has warned that mandatory fees and utility billing charges can push the real price above the advertised rent. Ask for the full monthly cost in writing before you apply.
- Required fees for trash, parking, pets, amenities or online payments.
- Utilities you pay directly, including internet.
- Renter insurance, which some leases require.
- Move-in cash: first month's rent, deposit, application fees and moving costs.
- Next year's renewal increase.
Leave room for next year
A rent that just fits today can squeeze you at renewal. At 3% a year, $1,500 rent becomes $1,545 after one year and about $1,688 by year 5. If your pay doesn't keep up, the gap comes out of savings.
A simple test: could you still cover everything if rent rose at renewal and your income dipped 10%? If the answer is barely, look for something a little cheaper or plan how you'd adjust.
Frequently asked questions
Is 40% of income too much for rent?
It's above the 30% guideline and HUD's cost burden line. It can work if you have little debt and low other costs, but it leaves less room for saving and surprises.
What salary do I need for $2,000 rent?
Under the 3x rule, $6,000 a month or $72,000 a year gross. Under the 30% rule, about $6,667 a month or $80,000 a year.
Do landlords count a co-signer or guarantor?
Many do. Ask the property for its written screening criteria, including any income rule for the guarantor.
Does the 30% rule include utilities?
HUD's Fair Market Rents count shelter rent plus most tenant-paid utilities. For your own budget, it's safest to count rent plus utilities and required fees.
How can I afford rent in an expensive city?
Common options are roommates, a smaller unit, a longer commute, or a lease with utilities included. Compare the full monthly cost of each option, not just rent.
References
These sources support the method or guidance used for Rent Calculator. Verify time-sensitive rules at the source.
Try the calculator
Open Rent Calculator, enter your scenario, and compare its supporting rows with this guide's method and checks.