Rent to Income Calculator
Rent & income
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Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- United States — state and local practice
- Scope and limitations
- Educational estimate only. U.S. real estate costs are local: property tax rates, transfer and recording taxes, title practice, who customarily pays which closing cost, and landlord-tenant rules all change by state and often by county or city. Agent commission is negotiable and, since the 2024 NAR settlement, buyer-agent compensation is negotiated separately rather than assumed. Only a lender's Loan Estimate, a title company's fee sheet or a signed contract binds a number.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the monthly rent and your gross monthly income — before tax, which is what landlords screen on.
- 02
Add a co-applicant's income if someone will be on the lease with you. It counts in full on most applications.
- 03
Set the income multiple the landlord requires. Three times the rent is the most common in the US.
- 04
Read whether you pass, and the shortfall if you do not.
- 05
Open Advanced options to check what a guarantor would need to earn — usually a much larger multiple, quoted annually.
Formula
Household income is your gross monthly income plus any co-applicant's. Required income is the monthly rent times the landlord's multiple, and you pass when household income reaches it. The shortfall is the required amount minus what you have, floored at zero, and the co-applicant figure is what a second person would need to earn to close the gap on their own. The rent you would clear is household income divided by the multiple, which is the useful number when you are still searching. The guarantor requirement is quoted differently — annual income against monthly rent — so it is the rent times the guarantor multiple, not divided by twelve. The landlord multiple keeps its default with a floor of one, because a multiple of zero would approve everybody.
Example
A $1,900 apartment, $5,200 of gross monthly income, no co-applicant, a landlord requiring 3x. Step 1 — Required: $1,900 x 3 = $5,700 a month, or $68,400 a year. Step 2 — You have $5,200. Shortfall: $500 a month. Step 3 — What you would clear: $5,200 / 3 = $1,733 of rent. So the search should be under $1,733, not $1,900. Step 4 — The fixes. A co-applicant earning $500 a month closes it exactly. A guarantor would need 80 times the monthly rent in annual income: $152,000 a year — which is why guarantors are hard to find and co-applicants are not. Step 5 — The other number. At $1,900 on $5,200, rent is 36.5% of gross, past HUD's 30% line. Even if a landlord approved you at 2.5x, the budget would be tight before the first grocery run. The screen and the affordability question point the same direction here, which is not always true — and when they disagree, the budget is the one to believe.
Definitions
- Income multiple
- The gross monthly income a landlord requires as a multiple of the rent. Three times is the US norm.
- 40x rule
- The same test expressed annually — 40 times the monthly rent as yearly income. Common in New York.
- Gross income
- Pay before tax and deductions. What every landlord screen measures.
- Co-applicant
- Another person on the lease whose income counts toward the household total — and who is equally liable for the rent.
- Guarantor
- Someone who signs to cover the rent if you default. Typically must show 80x to 100x the monthly rent annually.
- Rent-to-income ratio
- Rent divided by gross income. HUD counts anything over 30% as cost burdened.
- Joint and several liability
- Each tenant is liable for the entire rent, not just their share.
- Tenant screening
- The landlord's full check: income, credit, rental history, employment, and background.
- Source-of-income protection
- State or local laws preventing refusal of a housing voucher as a form of payment.
- Prepaid rent
- Several months paid in advance, sometimes accepted in place of meeting the income test.
- Proof of income
- Pay stubs, an offer letter, tax returns or bank statements — how the figure is documented.
- Screening threshold
- The specific multiple a landlord applies. Policy at large managers, negotiable at small ones.
Good to know
The 3x rule is a screen, not a budget
Most US landlords require gross monthly income of at least three times the rent, and many professionally managed buildings use exactly that figure in an automated screen. It is a crude proxy for ability to pay, and it runs on gross income precisely because gross is verifiable from a pay stub while take-home is not. Three times rent is the same as saying rent may not exceed 33.3% of gross — slightly looser than the federal 30% cost-burden line, and considerably looser than what most household budgets can actually carry once debt payments are counted. Passing the screen means you can rent the apartment. It does not mean you can afford it, and the screen has no view of your student loan, your car payment or your state's tax rate. The Rent Affordability Calculator answers the budget question; this one answers the application question.
What counts as income on an application
More than salary, and the list is worth knowing because applicants routinely understate themselves. Base pay, regular overtime with a history, commissions and bonuses averaged over two years, self-employment income from tax returns, rental income, investment income, Social Security, disability, pension and annuity payments, child support and alimony received under a court order, and in many jurisdictions housing vouchers all count — refusing a voucher is unlawful source-of-income discrimination in a growing number of states and cities. Co-applicant income is added to yours, which is the single fastest way to clear the multiple: on a $1,900 rent needing $5,700, a $5,200 earner is $500 short alone and comfortably over with any co-applicant earning $500 or more. Document everything with pay stubs, an offer letter, tax returns or bank statements; an undocumented income source usually does not count.
Guarantors are priced on a much higher multiple
When an applicant cannot meet the income test, a guarantor — a third party who signs for the full rent obligation — is the standard remedy. The multiple is far steeper, commonly 75 to 100 times the monthly rent in annual income, because the guarantor is also paying for their own housing. At 80x, a $1,900 apartment requires a guarantor earning $152,000 a year. Many landlords additionally require the guarantor to live in the same state or region, which rules out a parent in another part of the country. Where a personal guarantor is unavailable, institutional guarantor services will stand in for a fee of roughly 5% to 10% of the annual rent — real money, but often less than the alternative of a much larger deposit, and accepted by a growing share of large landlords.
The rest of the screen
Income is the first filter and rarely the only one. Most applications also pull a credit report, with 620 to 700 a common minimum and higher in competitive markets; a rental history check with prior landlords; an eviction records search; and often a criminal background check, though HUD guidance and a number of state and local laws now constrain how the last of these may be used. Thin or damaged credit is the most frequent silent rejection, and it is worth getting ahead of: a written explanation, proof of on-time rent payments, and an offer of an additional deposit resolve more applications than applicants expect. Application fees are typically $35 to $75 per adult, several states cap them at the actual cost of screening, and a few require any excess to be refunded — worth knowing before applying to five buildings at once.
Closing the gap without a co-signer
A $500 shortfall has more solutions than it looks. A co-applicant is the cleanest. Offering a larger security deposit works where state law allows it, though many states cap the total. Prepaying several months of rent is accepted more often in smaller, owner-managed buildings than in institutional ones. A shorter or longer lease term is sometimes traded for flexibility on the multiple. And the multiple itself is not universal: individual owners frequently use 2.5x, and units that have been listed for a while attract more flexibility than new listings. The one approach that reliably fails is inflating income on the application — it is verified against pay stubs and often against the employer directly, and a discovered misstatement ends the application immediately and can follow you through a tenant-screening database.
Frequently asked questions
What is the 3x rent rule?
The most common US screening standard: your gross monthly income must be at least three times the monthly rent. It is a landlord's underwriting shortcut, not a budgeting guide — three times the rent puts housing at 33% of gross, which HUD already counts as cost burdened.
Is 40x rent the same thing?
Yes, expressed annually. Forty times the monthly rent as an annual income is the same test as 3.33x monthly. New York landlords commonly quote 40x; most of the rest of the country quotes 3x. Convert before comparing.
Does gross or net income count?
Gross, essentially always. Landlords screen on income before tax because it is what a pay stub or an offer letter shows. It is also why passing the screen and affording the rent are two different questions.
Do roommates' incomes combine?
Usually yes when everyone is on the lease — the household is screened together against the full rent. Some landlords screen each applicant against their own share instead, which is stricter. Ask which before applying.
What is a guarantor and when do I need one?
Someone who signs to cover the rent if you cannot — commonly a parent. Landlords typically require a guarantor to show 80x to 100x the monthly rent in annual income, a much higher bar than the tenant's own. It is why a guarantor is often harder to find than a co-applicant.
Can I use savings instead of income?
Sometimes. Landlords may accept several months of rent prepaid, a larger deposit where state law allows, or proof of assets in place of income. It is discretionary and worth asking about directly rather than hoping the application handles it.
Does self-employment income count?
Yes, though it is documented differently — usually two years of tax returns or several months of bank statements rather than pay stubs. Expect the figure a landlord uses to be your net business income, which is often lower than what you think of as your income.
What else do landlords check?
Credit score, rental history, employment verification, and often an eviction and criminal background check. Income is the first gate, not the only one. A strong income with a recent eviction filing is a harder application than a marginal income with spotless history.
Is the multiple negotiable?
At small landlords, sometimes. At large managed buildings, rarely — it is policy applied by software. Where it is fixed, the levers are a co-applicant, a guarantor, prepaid rent, or a cheaper apartment.
Can a landlord refuse my housing voucher?
In many states and cities, no — source-of-income discrimination laws prohibit refusing Section 8 or similar vouchers, and where they apply the income test generally applies only to your share of the rent. Coverage varies, so check locally.
What if I only just pass?
Passing the screen and being comfortable are different. At exactly 3x, rent takes a third of your gross pay before tax, and HUD would call you cost burdened. Run the Rent Affordability Calculator to see what is actually left after your debts.
Does a higher multiple mean a better landlord?
No — it means a stricter one. A 4x requirement filters more applicants and says nothing about how the building is run. It does mean the unit is likely to be priced above what its neighbourhood supports.