House Affordability Calculator
Find out how much house you can afford based on your income, debts, and loan type. Compare Conventional, FHA, and VA loan limits with DTI ratio analysis.
28/36 Rule: Housing β€ 28%, Total debt β€ 36%
You Can Afford a Home Up To
$306,831
Loan Amount
$245,465
Down Payment
$61,366
Monthly Payment
$1,983
| Component | Monthly |
|---|---|
| Principal & Interest | $1,552 |
| Property Tax | $307 |
| Home Insurance | $125 |
| Total Housing Payment | $1,983 |
Debt-to-Income Ratios
π How House Affordability is Calculated
Determine monthly income
$85,000 annual Γ· 12= $7,083 gross monthly income
Apply 28/36 rule (Conventional)
Front-end: $7,083 Γ 28% = $1,983 max housing= Back-end: $7,083 Γ 36% = $2,550 max total debt
Subtract existing debts
$2,550 β $500 monthly debts = $2,050 available for housing= Lower of $1,983 and $2,050 β $1,983 max housing
Calculate max home price
Subtract tax/ins/HOA, reverse P&I with 6.5% for 30yr= Max home β $313,000 with 20% down
Rate Comparison
Conventional (28/36)
~$313K
Strictest DTI | 3-20% down | No MI with 20% down
FHA (31/43)
~$362K
Moderate DTI | 3.5% down | MIP required
VA (41% back)
~$377K
Most generous | 0% down | For veterans
The True Cost of Homeownership
π‘ How Much House Can I Afford?
Front-End Ratio: Housing Costs Only
The front-end debt ratio (also called the mortgage-to-income ratio) measures your housing costs as a percentage of gross monthly income. Housing costs include PITI: principal, interest, property taxes, and homeowner's insurance, plus HOA fees and PMI/MIP if applicable.
Formula: Front-End DTI = (Total Monthly Housing Costs Γ· Gross Monthly Income) Γ 100
Conventional loans cap this at 28%. FHA allows 31%. VA loans generally don't enforce a front-end limit, focusing instead on the back-end ratio.
Back-End Ratio: All Monthly Debts
The back-end ratio includes everything in the front-end ratio plus all other recurring monthly debts: car payments, student loans, credit card minimums, personal loans, child support, and alimony.
Formula: Back-End DTI = (Total Monthly Debts Γ· Gross Monthly Income) Γ 100
This is the primary ratio lenders examine. Conventional loans cap it at 36%, FHA at 43%, and VA at 41%.
Conventional Loans and the 28/36 Rule
A conventional loan is a mortgage not insured by the federal government, generally following guidelines set by Fannie Mae and Freddie Mac. These can be conforming (meeting agency limits) or non-conforming (jumbo loans exceeding limits).
The 28/36 Rule is the standard qualification guideline: no more than 28% of gross income on housing, no more than 36% on total debt. While widely used, this rule is sometimes relaxed in competitive markets β some lenders approve DTI ratios as high as 45-50% with strong compensating factors (high credit score, significant savings, large down payment).
FHA Loans: Lower Barriers to Entry
FHA loans, insured by the Federal Housing Administration, use a 31/43 DTI standard β more lenient than conventional. Key features:
- Minimum down payment: 3.5% (with credit score β₯ 580)
- Credit score: As low as 500 (with 10% down)
- Mortgage Insurance Premium (MIP): 1.75% upfront + 0.55% annual
- MIP duration: Life of loan if down payment < 10%; 11 years if β₯ 10%
FHA loans are popular with first-time homebuyers due to lower entry requirements, but the mandatory MIP increases monthly costs compared to conventional loans with 20% down.
VA Loans: Best Terms for Veterans
VA loans, guaranteed by the U.S. Department of Veterans Affairs, use a 41% back-end DTI with no specific front-end limit. They offer:
- 0% down payment β the only major loan program with no down payment
- No PMI/MIP β saving hundreds per month
- Competitive rates β typically 0.25-0.5% lower than conventional
- VA Funding Fee: 1.25-3.3% of loan amount (can be rolled into the loan)
VA loans are available to veterans, active-duty service members, National Guard/Reserve members, and eligible surviving spouses.
How to Increase Your Home Affordability
If you can't immediately afford the home you want, here are proven strategies:
- Reduce existing debt β Pay off credit cards and car loans to lower your back-end DTI. Every $200/month of eliminated debt increases your home buying power by approximately $30,000.
- Improve your credit score β Moving from 660 to 740 could save 0.5-1.0% on your rate, increasing your purchase power by $20,000-$40,000.
- Save a larger down payment β 20% down eliminates PMI and gets you better rates. Plus, every dollar of down payment directly adds to your max home price.
- Increase income β A $10,000 raise increases affordable home price by $25,000-$35,000 depending on the loan type.
- Consider location β Property taxes vary dramatically: New Jersey averages 2.5% while Hawaii averages 0.3%. Moving to a low-tax state can increase your affordable home price by $50,000+.
When Renting Makes More Financial Sense
Homeownership isn't always the right choice. Renting may be smarter when: (1) you plan to move within 3-5 years (closing costs won't be recouped), (2) local rent-to-price ratios favor renting, (3) you have high-interest debt that should be paid first, or (4) the housing market is overheated. Use the "5% Rule": if annual rent is less than 5% of the home's purchase price, renting is likely the better financial decision.