Savings & Banking

Rent Affordability Calculator

The rule of thumb is to keep rent under 30% of your income, but the right number depends on your other costs and goals. Enter your monthly income to see an affordable rent range and what's left over for everything else.

Tested against worked examplesHow we verify

Monthly income

Use take-home (net) pay for a realistic budget; landlords often use gross.

Rent-to-income target

30% is the classic guideline. Lower is safer; higher stretches your budget.

Affordable rent at 30% of income

$1,500

Comfortable (25%): $1,250
Stretch (40%): $2,000
Left for everything else: $3,500

Compare scenariosTry three values of one input

Vary

Rent Affordability Calculator results for three values of Monthly income
Monthly income
Affordable rent at 30% of income	$1,350	$1,500+$150	$1,650+$300
Comfortable (25%)	$1,125	$1,250+$125	$1,375+$250
Stretch (40%)	$1,800	$2,000+$200	$2,200+$400
Left for everything else	$3,150	$3,500+$350	$3,850+$700

Every other input stays at the value you set above — currently $5,000 for monthly income. Differences are measured against the first column.

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How this calculator works

Affordable rent = monthly income × your target ratio. The comfortable (25%) and stretch (40%) figures apply the same formula at fixed ratios, and 'left for everything else' is income minus rent at your target.

This is a budgeting guideline, not a lending rule. Your ideal rent depends on your debts, savings goals, and cost of living — pair it with a full budget for the real picture.

What this assumes

Guidance-based — commonly 30% of gross income, which is a convention rather than a rule and fails in expensive markets.
Utilities, renters insurance and parking are excluded unless entered, and can add substantially.
Landlords typically screen on gross income and may require 2.5–3× the rent, which is a stricter test than this.

What changes this number

Gross versus take-home: 30% of gross is a much larger share of net, which is why an affordable-looking rent can feel tight.
Other debt payments: Not part of the rent rule, but they compete for the same paycheck.
Location: In high-cost markets the 30% guideline is unreachable, and the honest response is to plan around a higher share rather than pretend.

A worked example

Take the $4,000 income, 30% scenario. These figures are produced by the calculator above, not written alongside it, so they always match what the tool returns.

What you enter

Monthly income: $4,000
Rent-to-income target: 30%

What it returns

Affordable rent at 30% of income: $1,200
Comfortable (25%): $1,000
Stretch (40%): $1,600
Left for everything else: $2,800

Try an example

$4,000 income, 30%High-cost city (40%)Frugal saver (25%)

Frequently asked questions

How much rent can I afford?

The common guideline is no more than 30% of your income on rent — about $1,500 a month on a $5,000 income. It's a starting point, not a law: high earners can often spend less than 30% comfortably, while in expensive cities many people pay more and cut elsewhere.

Should I use gross or net income for the 30% rule?

Landlords usually apply the rule (or a 40× annual rent requirement) to gross income, but for your own budget, use take-home pay. Rent that's 30% of gross can be closer to 40% of what actually lands in your account after taxes and deductions.

What if I can't find rent under 30%?

In high-cost areas it's common to exceed 30%. If you do, protect the rest of your budget: keep other fixed costs low, get a roommate, or trade commute for rent. The real test is whether you can still save and cover essentials — not the ratio itself.

This calculator helps answer

Should I rent or buy?

Compare the full cost of owning against renting over your actual time horizon, including the costs of buying and selling that make short stays expensive.

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Disclaimer: DayCents provides this calculator for educational purposes only. Results are estimates based on your inputs and the stated assumptions — they are not financial advice, a quote, or an offer of credit. Consult a qualified financial professional before making major money decisions.