Finance guide
How Much Rent Can I Afford? The 30% Rule, 40× Rule and Your Debts
Why the 30% rule and the 40× landlord rule give the same answer, how debts lower it, rent by salary from $35k to $100k, and the move-in costs rent figures leave out.
By M2Toolkit Editorial TeamPublished 6 min read
Quick answer
A common guideline is to spend no more than 30% of your gross monthly income on rent, which is the same as annual salary ÷ 40. On a $60,000 salary, that's $1,500 a month. If you have car loans, student loans or card payments, aim for rent plus debts under about 36% of gross income, which may lower the figure.
Landlords, letting agents and personal finance guides use a few different rules. They overlap more than you might expect, and the one that matters most depends on your debts and where you live. Here's how each works, with a table by salary and the costs that rent figures leave out.
The three rules, and why two are the same
40× rule: annual income ≥ rent × 40 → rent ≤ annual income ÷ 40
Debt check: (rent + monthly debt payments) ≤ gross monthly income × 0.36
The 30% rule and the 40× rule give the same answer, because 30% of a month is 0.30 ÷ 12 = 1/40 of a year. A landlord asking for “40 times the rent” is really applying the 30% rule. The debt check is different: it uses what you already owe, so two people on the same salary can afford very different rents.
Rent by salary
Maximum rent under the 30% rule, and with $400 a month of debt payments under the 36% check:
| Annual salary | 30% rule | With $400/month debts (36%) |
|---|---|---|
| $35,000 | $875 | $650 |
| $50,000 | $1,250 | $1,100 |
| $60,000 | $1,500 | $1,400 |
| $75,000 | $1,875 | $1,850 |
| $100,000 | $2,500 | $2,600 |
The comfortable maximum is the lower of the two columns. At higher salaries the 30% rule usually binds first; at lower salaries, existing debts quickly squeeze what's left.
Try the free Rent Affordability CalculatorEnter your income and debts to see your comfortable maximum, or check the income a specific rent requires.Costs the rent figure leaves out
| Cost | What to expect |
|---|---|
| Security deposit | Often one month's rent, sometimes more. Returned at the end if there's no damage. |
| First month's rent | Usually due at signing, together with the deposit. |
| Utilities | Electricity, water, gas, internet. Ask the landlord or current tenant for typical bills. |
| Renter's insurance | Usually a small monthly cost that covers your belongings and liability. |
| Agent or application fees | Vary a lot by country and city, and some places ban them. |
| Moving | Van hire or movers, plus basics such as furniture for an unfurnished place. |
Gross vs take-home pay
Rent rules use gross income because that's what landlords can verify. But you pay rent from take-home pay. If taxes and deductions take 25%, rent at 30% of gross is 40% of take-home pay. That can still work, but it leaves less for everything else.
A quick sanity check: after rent, will your remaining take-home pay cover bills, food, transport, debt payments and some saving? If not, aim lower than the rule allows.
Try the free Take-Home Pay CalculatorSee your pay after tax, then subtract rent to check what's left.Try the free Monthly Budget PlannerPlan the rest of the month with the 50/30/20 split.If the numbers don't work
- Share. A two-bedroom split two ways is often much cheaper per person than a one-bedroom.
- Count the commute. A cheaper flat further out can cost more once transport and time are added.
- Use a guarantor. If you can afford a place but don't meet a landlord's income rule, a guarantor may help. They're usually asked for a higher income multiple.
- Negotiate. Longer leases, flexible move-in dates or quiet months can sometimes bring the price down.
Frequently asked questions
Is the 30% rule realistic in big cities?
Often not. Many renters in expensive cities pay 35–50%. If you do, keep debts low and protect at least some saving every month.
Do landlords count a partner's income?
Usually, if both of you are on the lease. Combined income is then compared with the rent.
What income do I need for $2,000 rent?
Under the 40× rule, $80,000 a year. That's the same as $2,000 being 30% of $6,667 a month.
Should I include utilities in the 30%?
The rule usually means rent alone, but including utilities gives a more honest picture of housing costs.