What is the 30% rule for rent?

The 30% rule says housing should cost no more than 30% of your gross income. At a 60,000 dollar salary that is 1,500 dollars a month. Spending more than 30% is considered cost-burdened by most housing standards.

What is the median rent in San Jose?

The median one-bedroom rent in San Jose is around 2,700 dollars per month. Studios run somewhat less and two-bedrooms substantially more. To afford a median one-bedroom at the 30% rule you would need roughly 108,000 dollars per year.

Why do landlords often want 3x the rent in income?

Requiring monthly income of three times the rent is the same as the 30% rule, since rent ÷ (3 × rent) is about 33%. Many San Jose landlords use a 2.5x to 3x gross monthly income screen when reviewing applications.

Should I use gross or net income?

The standard 30% rule uses gross income before taxes, which is what most landlords screen on. If you want a stricter, more realistic budget, you can apply 30% to your take-home pay instead, which lowers your affordable rent ceiling.

What if rent is above 30% of my income?

It can still work in a high-cost area like San Jose, but you will have less left for savings, transport, and emergencies. Many Bay Area renters spend 35% to 45% of income on rent; the higher the ratio, the more cost-burdened you are.

San Jose Rent Affordability Calculator

San Jose has some of the highest rents in the country, so checking affordability before you commit matters. This calculator applies the standard 30%-of-income rule, reports your rent-to-income ratio, and compares your target rent against San Jose’s roughly 2,700 dollar median one-bedroom.

How it works

The 30% rule sets an affordable rent ceiling from gross income:

Affordable rent ceiling = gross monthly income × 0.30
Rent-to-income ratio    = target rent ÷ gross monthly income

If your target rent is at or below the ceiling, it is affordable under the rule. The same logic explains the common landlord screen of 3× rent in monthly income, since requiring income ≥ 3 × rent is equivalent to rent ≤ 33% of income.

Example

A 7,000 dollar gross monthly income gives an affordable ceiling of 2,100. A 2,700 median one-bedroom would be 38.6% of income — above the 30% rule, so it is affordable only if you trim other spending.

Notes

The rule uses gross income by convention, matching how landlords screen. Applying 30% to take-home pay gives a stricter, safer ceiling. In San Jose many renters exceed 30%, but the higher the ratio the more cost-burdened you are.