To determine how much house you can afford, several key financial factors are considered:
Key Factors in Affordability
- Income: Your gross (pre-tax) monthly or annual income is the starting point.
- Debt: Monthly debt payments such as car loans, credit cards, and student loans affect affordability.
- Down Payment: The amount of cash you can put down upfront reduces the loan amount needed.
- Interest Rate: Lower mortgage interest rates reduce monthly payments, increasing affordability.
- Other Housing Costs: Property taxes, homeowner’s insurance, and possibly HOA fees also impact monthly costs.
Common Rules of Thumb
- 28/36 Rule: Suggests you should spend no more than 28% of your gross monthly income on housing costs and no more than 36% on total debt payments (including mortgage and other debts)
- 36/43 Rule: Some lenders use a slightly higher threshold, allowing up to 36% of income for mortgage costs and up to 43% for total debt payments
- FHA Loan Guidelines: FHA loans often use a 31/43 rule, with housing costs capped at 31% of income and total debts at 43%
How to Calculate
- Calculate 28% (or 31-36% depending on loan type) of your gross monthly income to estimate your maximum monthly housing payment.
- Subtract your other monthly debt payments to see what mortgage payment fits within your total debt limit.
- Use online affordability calculators (from NerdWallet, Zillow, Chase, Wells Fargo, etc.) to input your income, debts, down payment, and expected interest rate to get a home price estimate
Example
If you earn $5,500 per month:
- Max housing cost = $5,500 x 0.28 = $1,540 per month
- If you have $500 in other debts, your total debt payments should not exceed $5,500 x 0.36 = $1,980
- So, mortgage + other debts ≤ $1,980, meaning mortgage payment ≤ $1,480
Additional Considerations
- Getting pre-qualified or pre-approved by a lender can provide a more precise affordability figure based on your credit and financial profile
- Your personal savings goals, lifestyle, and comfort with monthly expenses should also factor into your decision.
- Down payment size and credit score affect loan options and interest rates, influencing affordability
In summary, you can afford a house where your monthly housing costs (mortgage, taxes, insurance) are about 28-36% of your gross monthly income, and your total monthly debt payments do not exceed 36-43% of your income. Using online calculators with your specific financial details will give you a tailored estimate of the home price you can afford.