A common rule of thumb is to keep rent at or below 30% of your gross monthly income. It's a starting point for budgeting, not a hard limit — what's comfortable depends on your other expenses and goals.
Using the percentage rule
Multiply your gross monthly income by the percentage you're comfortable spending. A lower percentage leaves more room for savings, debt, and everything else; a higher one may be workable in expensive cities but leaves less slack. Landlords often look for income around three times the rent, which lines up with the 33% mark.
A worked example
On a $5,000 gross monthly income, the 30% guideline points to a maximum rent of about $1,500, leaving $3,500 for everything else. A more conservative 25% caps it at $1,250; stretching to 35% allows $1,750. Every extra percentage point is money not going toward savings, debt payoff, or an emergency fund.
Beyond the 30% rule
The percentage rule is a starting point, not a law. Someone carrying student loans or a car payment may need to aim lower, while a debt-free renter might comfortably go higher. It also uses gross income, so your take-home reality can feel tighter than the number suggests.
Remember rent isn't your only housing cost. Budget for utilities, renter's insurance, parking, and a security deposit up front — and note that many landlords require gross income of about three times the monthly rent to qualify at all.