How to use this calculator
Start by entering your gross income, either as an annual salary or monthly amount. Then add any recurring monthly debt payments like student loans, car payments, credit card minimums, or other fixed expenses. The calculator instantly shows your maximum affordable rent using the 30% rule and an adjusted amount that accounts for your existing obligations.
Use the “Test a rent amount” field or slider to plug in a specific rent you're considering. You'll see what percentage of your income it represents, a color-coded indicator (green, yellow, or red), and how much you'd have left over each month after rent and debt payments.
Understanding the 30% rule
The 30% rule is the most commonly cited guideline for rent affordability. It says you should spend no more than 30% of your gross monthly income on housing. For someone earning $60,000 per year, that means a maximum rent of about $1,500 per month.
This rule dates back to the United States National Housing Act of 1937, when it was originally set at 25% and later adjusted to 30% in 1981. While it provides a useful starting point, it doesn't account for individual circumstances like debt load, savings goals, local cost of living, or income level.
Someone earning $200,000 per year can comfortably spend more than 30% on rent because their remaining income still covers all other expenses. Someone earning $35,000 with student loan debt might need to stay well below 30% to make ends meet. That's why this calculator also shows an adjusted amount after factoring in your debts.
Rent-to-income ratios explained
| Ratio | Status | What it means |
|---|---|---|
| Under 25% | Comfortable | Plenty of room for savings, emergencies, and lifestyle spending. |
| 25% - 30% | Ideal | The sweet spot recommended by most financial experts. |
| 30% - 35% | Manageable | Works if you have low debt and stable income, but leaves less cushion. |
| 35% - 40% | Stretched | Common in high-cost cities. Requires careful budgeting elsewhere. |
| Over 40% | Cost-burdened | HUD considers this housing cost-burdened. Very little room for savings or unexpected costs. |
Hidden costs of renting
Rent is just the starting point. Before you sign a lease, make sure you've accounted for the full cost of renting:
- Utilities: Electricity, gas, water, sewer, and trash can add $150 to $300 per month depending on the area and apartment size.
- Internet: Plan for $50 to $80 per month for reliable internet service.
- Renter's insurance: Typically $15 to $30 per month. Covers your belongings and provides liability protection.
- Parking: In cities, parking can cost $100 to $300+ per month on top of rent.
- Move-in costs: Security deposit (often one month's rent), first and last month's rent, application fees, and moving expenses.
- Pet deposits & fees: If you have pets, expect a one-time deposit of $200 to $500 plus monthly pet rent of $25 to $75.
Frequently asked questions
How much of my income should go to rent?
The widely used 30% rule recommends spending no more than 30% of your gross monthly income on rent. For someone earning $60,000/year ($5,000/month), that means a maximum of $1,500/month. However, this is a guideline, not a hard rule. Factor in your debt, savings goals, and local cost of living to find what actually works for you.
What is the 30% rule for rent?
The 30% rule states that you should spend no more than 30% of your gross (pre-tax) monthly income on housing costs. This rule originated from the United States National Housing Act of 1937. While it provides a useful benchmark, many financial experts now consider it outdated for high-cost-of-living areas where spending 35 to 40% on housing is common.
Should I use gross or net income to calculate rent affordability?
The traditional 30% rule uses gross (pre-tax) income, and most landlords evaluate applications based on gross income. However, using net (after-tax) income gives you a more conservative and realistic picture of what you can actually afford, since taxes can take 20 to 35% of your paycheck. If you want to be cautious, apply the 30% rule to your net income instead.
How do landlords decide if I can afford the rent?
Most landlords require that your gross annual income be at least 40 times the monthly rent (which works out to about 30% of income). They also check your credit score (typically wanting 650+), rental history, employment verification, and debt-to-income ratio. Some landlords accept a co-signer or larger security deposit if you don't meet income requirements.