Household Budget Rent Calculator

The '30% of gross income' rule ignores debt, utilities, and savings goals. This calculator uses net take-home, subtracts existing debt, reserves a savings rate, and overlays renter utilities/insurance to produce a realistic max rent.

Net monthly take-home

Monthly debt payments

Savings target %

Other fixed expenses (phone, car, insurance)

Estimated utilities

Renter's insurance / month

Reserved discretionary spend

Max affordable rent

$2,575

Rent as % of net income

44.4%

Reserved for savings

$870

How the math works

Net $5,800 − $650 debt − $870 savings (15%) − $900 fixed − $180 utilities − $25 insurance − $600 discretionary = $2,575 max rent. That's 44% of net, 31% of gross — within the 30% gross guideline.

If max rent comes out lower than market in your area, trade one of: savings %, fixed expenses (cheaper car?), discretionary spend, or income target (side work, roommate). Don't sacrifice savings to rent; house-poor starts there.

How to Use

Enter net monthly take-home income (after tax).
Enter existing debt payments (student loans, car, credit cards).
Enter monthly savings target and other fixed expenses.
Add estimated utilities + renter's insurance.
See max recommended rent and rent-to-income ratio.

Frequently Asked Questions

Should I use gross or net income?

Net is more honest for affordability planning. Gross-based 30% rule assumes ~25% tax burden; actual blended effective tax can be 15-35%. Use take-home for real decisions, gross-based for lender ratios.

What share for savings?

10-20% of net income for financial health. If rent eats into this, you're house-poor. Common trade: accept smaller place + higher savings over larger place + zero savings.

How much for utilities?

$120-$260/mo for a 1-2BR unit depending on climate and utilities included. Gas-heated / cold-climate apartments hit $300+. Check listing details for utilities included.

Is it okay to exceed 30%?

Sometimes. If you have low debt and high savings elsewhere, paying 35-40% of gross for rent in a high-cost city is viable. The real test: does your post-rent cash flow allow saving, debt paydown, and emergencies?