What Is the 3x Rent Rule?
The 3x rent rule is a common screening standard used by landlords and property managers: a tenant's gross monthly income should be at least three times the monthly rent. This 3x Rent Calculator works both ways — enter a rent amount to see the income you'd need to qualify, or enter your income to see the maximum rent you can afford.
How to Use It
Pick what you want to calculate. To check whether an apartment is within reach, choose "Required income from rent" and enter the monthly rent. To set a budget while apartment hunting, choose "Max rent from income" and enter your gross monthly income. The calculator instantly shows the figure plus the supporting numbers, including the required annual income.
The Formula Explained
The math is simple. Required monthly income equals rent multiplied by three. Required annual income is that figure multiplied by twelve. To go the other direction, the maximum affordable rent equals your monthly income divided by three. Because the rule uses gross (pre-tax) income, always enter income before deductions.
$$\text{Required Income} = \text{Rent} \times 3 \qquad \text{Max Rent} = \frac{\text{Income}}{3}$$
Worked Example
Suppose the rent is $1,500 per month. Required monthly income = \(\$1{,}500 \times 3 = \$4{,}500\). Required annual income = \(\$4{,}500 \times 12 = \$54{,}000\). If instead you earn $4,500 per month, your maximum rent = \(\$4{,}500 \div 3 = \$1{,}500\) — confirming the two formulas are mirror images of each other.
Required Income at Common Rent Levels
The 3x rent rule is one of the most widely used screening standards in residential leasing. Under this rule, a tenant should earn at least three times the monthly rent in gross (pre-tax) monthly income to qualify for a unit. The required annual income is simply the monthly rent multiplied by 36 (that is, \(3 \times 12\)).
The formula is:
$$\text{Required Monthly Income} = 3 \times \text{Monthly Rent}$$The table below shows the gross monthly and annual income most landlords would expect across common rent levels.
| Monthly Rent | Required Monthly Income (3×) | Required Annual Income (36×) |
|---|---|---|
| $1,000 | $3,000 | $36,000 |
| $1,250 | $3,750 | $45,000 |
| $1,500 | $4,500 | $54,000 |
| $1,750 | $5,250 | $63,000 |
| $2,000 | $6,000 | $72,000 |
| $2,500 | $7,500 | $90,000 |
| $3,000 | $9,000 | $108,000 |
| $3,500 | $10,500 | $126,000 |
| $4,000 | $12,000 | $144,000 |
Read it in reverse to estimate your maximum rent: divide your gross monthly income by 3. For example, a tenant earning $6,000 per month would qualify for roughly $2,000 in rent. You can check how that rent compares to your income with a 33.3% rent-to-income ratio.
FAQ
Is the income gross or net? Landlords almost always mean gross (pre-tax) monthly income.
What if I don't meet 3x? Options include a co-signer or guarantor, a larger security deposit, showing strong savings, or splitting rent with roommates whose combined income meets the threshold.
Do all landlords use 3x? No. Some use 2.5x or 2.7x, and high-cost cities may use 40x annual rent (similar to 3.33x monthly). The 3x rule is the most widely cited starting point.
