The classic rule: 30% of your gross income on rent.
It's a guideline, not a law. The honest modern range:
- 25-30% — comfortable in most cities
- 30-35% — common in mid-cost cities
- 35-40% — high-cost cities (NYC, SF, LA, Seattle)
- 40%+ — house-poor; tradeoffs elsewhere required
The math
Gross monthly income = annual salary / 12. Max rent at 30% = gross monthly × 0.30.
Example: $60,000/year → $5,000/month gross → $1,500 max rent.
Why 30% as the rule
Originated from HUD definitions of "affordable" housing. The idea: leaving 70% for everything else (food, transport, savings, debt, fun, retirement) is the threshold for not being "cost-burdened."
When 30% doesn't work
In SF, NYC, LA, and Seattle, average rents push many residents to 40%+. Choices:
- Live further out / longer commute
- Roommates
- Smaller / older units
- Different neighborhood
- Accept higher % of income
There's no shame in being above 30% in a high-cost city. There is risk in being above 50% — minor financial events become emergencies.
Adjustments for context
- Student loans: subtract from available income before computing rent budget.
- Single income vs dual income: dual incomes can absorb higher rent ratios per individual.
- Stage of life: early career often spends more % on rent (low base salary). Later career, lower %.
- Saving for a down payment: reduce rent budget to free up savings.
Other budget guidelines
- 20% to savings and investments
- 50% to needs (rent, food, transport, healthcare, debt minimums)
- 30% to wants (entertainment, dining, hobbies, travel)
The 50/30/20 rule. Rent is usually the biggest "needs" line.
What recruiters and managers know that you might not
If you're moving for a job:
- Ask about cost-of-living adjustments.
- Negotiate relocation.
- Ask about housing stipends if remote-friendly companies offer them.
The bigger pattern
Rent budget is a function of total compensation, not just base salary. Higher comp + lower-cost city is leverage. Lower comp + higher-cost city is constraint.
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Frequently Asked Questions
- Is the 30% rule still relevant?
- Roughly yes, but with caveats. In high-cost cities (NYC, SF, LA), 30% may not be possible — many people are at 35-50%. The rule is a guideline, not a law.
- Should I use gross or net income for the calculation?
- Traditionally gross. Some financial planners use net for a more honest view. Either is fine if you're consistent.
- What if I have student loans?
- Subtract loan payments before computing 'available' income. Rent + loans should usually stay under 50% of gross to leave room for everything else.
- What's the budget rule for total housing including utilities?
- 30% on rent alone; 35-40% with utilities and renter's insurance. Beyond that, you're house-poor.