- Can you afford it, and will they approve you? Two different questions.
- Affordability is a budgeting question: can this rent coexist with your groceries, your savings and your car payment? The usual answer is the 30% rule — about 30% of gross monthly pay. Approval is a screening question, and landlords answer it with a different rule: gross income of at least 3× the rent, documented with pay stubs or an offer letter. The two numbers diverge constantly. On $60,000 a year you can carry $1,500 of rent, and $1,500 is also exactly the ceiling a 3× screen would approve you for — so far so good. But add $800 of monthly debt payments and your real comfortable ceiling drops to $1,200, while the leasing office still happily approves you at $1,500. The reverse happens too: plenty of people are comfortable at a rent their documented income can't clear on paper, which is when a guarantor or a co-signer enters the conversation. Knowing both numbers before you tour anything saves you from falling for a place you can afford but can't get.
- What is the 30% rule for rent?
- Spend no more than 30% of your gross monthly income on rent. On $60,000 a year that's $5,000 a month of gross pay and $1,500 of rent. The number traces back to US housing policy — the 1969 Brooke Amendment capped public-housing rent at 25% of income, and the ceiling was raised to 30% in 1981, where it stuck as the definition of "cost-burdened" in federal housing statistics. It's a rule of thumb, not a law of nature, and it's built on gross income because that's the number policy and landlords both work from. Its weakness is that it treats a $40,000 income and a $400,000 income as the same shape of problem, when in reality the person earning $400,000 has far more slack after 30%. That's why this tool shows 25% and 35% alongside it instead of pretending one percentage fits everyone.
- Why do landlords want 3× the rent in income?
- Because it's the fastest proxy for "can this person keep paying after something goes wrong." Rent at a third of gross income leaves enough margin that a slow month or a car repair doesn't turn into a missed payment. Many landlords and property managers apply it as a hard filter before they even pull credit, and some markets tighten it: in high-cost cities you'll see 40× the monthly rent in annual income, which is the same idea expressed annually (40 × $1,800 = $72,000, slightly stricter than 3× monthly, which comes to $64,800). If you don't clear the bar, the standard moves are a guarantor, a co-signer, a larger deposit where local law allows it, or several months of rent prepaid. Ask which one the landlord accepts before you pay an application fee — that's the part that isn't refundable.
- Should I use gross pay or take-home pay?
- Gross, and this tool is gross-only on purpose. The 30% rule is defined on pre-tax income, and gross income is what a landlord screens on, so using take-home pay makes your number look stricter than both the rule and the application. That said, take-home is what actually pays the rent, and the gap is large: after federal tax, FICA and a typical state, $5,000 of gross monthly pay lands as roughly $3,800–$4,100. The $1,500 that reads as 30% of gross is closer to 38% of what actually hits your account. If that feels tight, the honest move is to work from the conservative 25% tier rather than to switch which income you measure. Our paycheck tax calculator will get you the take-home figure if you want to see both.
- What if I have student loans or a car payment?
- Then the rent percentage stops being the number that matters and the 40% guideline takes over: rent plus your monthly debt payments shouldn't cross 40% of gross pay. On $60,000 a year — $5,000 a month — the ceiling for rent plus debts is $2,000. With $800 of car and loan payments, your rent cap is $1,200, not the $1,500 the 30% rule promised. Type your debts in and the tool applies that cap and tells you when it's the thing binding, so you don't read a number that assumes you owe nobody anything. If the debts alone use up the whole 40%, the answer is $0 — which isn't the calculator being dramatic, it's the arithmetic saying that paying down debt will move your housing budget more than a raise would.
- Is 25% or 35% of income better?
- It depends on what else has a claim on the money. Pick 25% if you're carrying debt, saving for something specific, freelancing with lumpy income, or live somewhere a car is mandatory. Pick 35% if you're in an expensive city with no car, your commute is walkable, or the apartment includes utilities that would otherwise be separate line items. The reason all three tiers are on screen at once — rather than behind a slider you have to drag — is that the choice between them is the actual decision. The percentages are trivial arithmetic; knowing which one describes your life is the part worth thinking about for thirty seconds.
- How do I work out the income I need for a specific rent?
- Multiply the rent by 3 for the monthly income, or by 36 for the annual. A $1,800 apartment needs $5,400 a month or $64,800 a year of gross income to clear a standard 3× screen. Click "I already found a place", type the rent, and the tool does both. It's the calculation worth running before you tour anything: the listing tells you the rent, the leasing office tells you the income requirement only after you've filled in the application, and the gap between those two moments is where application fees go to die.
- Does the 30% rule still work in an expensive city?
- Not as a rule, but it still works as a measurement. In New York, San Francisco, Boston and a handful of other markets, a median renter spends well past 30% of income on housing — roughly half of US renters are officially cost-burdened, meaning over the 30% line, and a quarter are severely cost-burdened at over 50%. The rule doesn't stop being useful there; it stops being a target and becomes a diagnostic. If you're at 42%, the number tells you exactly how thin the rest of your budget is, which is worth knowing even when the local market gives you no better option. The stretch tier exists for precisely this: it's what the arithmetic looks like when you're choosing a real tradeoff rather than following a guideline.
- Do utilities, parking and renter's insurance count in the 30%?
- Housing-cost statistics generally include utilities, so if you're comparing yourself to a national figure, add them. For this tool, the number is rent as written on the lease — because that's the number a landlord's 3× screen uses, and mixing the two definitions would make the two outputs incomparable. In practice, budget $100–$250 a month on top for electricity, gas, water and internet in a typical apartment, plus parking and renter's insurance where they apply. A place advertising utilities included is worth more than the sticker difference suggests, and it's the one case where jumping from the 30% tier to the 35% tier may cost you nothing at all.
- Is anything I type here saved or sent anywhere?
- No. The whole calculation runs in your browser. Nothing is stored, nothing is transmitted, and closing the tab clears it. There's no sign-up, no email gate, and no moment where your answer appears and then hands you off to a listings feed or a lender. The math here is one multiplication — you shouldn't have to walk through a sales floor to get it.
