Check your approval odds and maximum loan amount based on income and debts
First-time homebuyers before meeting with a lender, buyers wanting to know their price range before house hunting, and anyone curious whether they'd qualify for a mortgage.
Estimate your maximum loan amount and purchase price based on income, debts, and credit score using standard lender qualification guidelines.
$8,000/month gross income, $500/month debts, 720 credit score, 10% down → pre-qualifies for ~$420K loan, $467K home at 6.75% (payment: $2,178/month).
💡 First-Time Buyer Tip: Lenders use the 28/43 rule: Housing costs ≤ 28% of gross income, total debts ≤ 43% of gross income.
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Principal, interest, taxes, insurance
Interest rates by credit score (on $300K loan):
Pre-qualification is a lender's preliminary estimate of how much you might borrow, based on self-reported income, debts, and assets without a hard credit pull. It is a useful planning tool but carries no weight with sellers. Pre-approval is a conditional commitment backed by verified documentation — pay stubs, tax returns, bank statements — and a hard credit inquiry. A pre-approval letter significantly strengthens your offer in competitive markets.
This calculator replicates the pre-qualification analysis lenders run internally, using standard DTI guidelines, credit score impacts, and loan program thresholds. The results give you a realistic estimate before you speak with a lender, so you can shop with confidence and negotiate from a position of knowledge.
Mortgage lenders evaluate five factors — sometimes called the "Five C's of Credit": Capacity (DTI ratio and income stability), Capital (down payment, reserves, assets), Credit (score, history, payment behavior), Collateral (the home's appraised value vs. loan amount), and Character (employment history, stability of income). This calculator focuses on the most quantifiable factors: capacity and capital.
If your pre-qualification results are lower than expected, there are concrete steps to improve your position before applying:
Conventional loans (backed by Fannie Mae/Freddie Mac) require a minimum 620 credit score and 3% down. FHA loans allow scores as low as 580 with 3.5% down, and 500–579 with 10% down. VA loans (veterans and active military) require no down payment and no minimum credit score (though most VA lenders require 620+). USDA loans offer 100% financing for eligible rural and suburban properties.
Everything you need to know before talking to lenders
Pre-qualification is a lender's estimate of how much you can borrow based on self-reported income and debts. It's free, quick (10-15 minutes), and doesn't affect your credit score.
Pre-qualification is informal and unverified. Pre-approval requires documents, credit check, and lender verification. Sellers take pre-approval seriously; pre-qual letters have little weight.
Front-end ratio: Housing costs ≤ 28% of gross income. Back-end ratio: All debts including mortgage ≤ 43% of gross income. Some programs allow up to 50% DTI.
Every 20-point increase in credit score can save 0.25-0.5% on your rate. On a $400K loan, that's $50-100/month savings. Aim for 740+ for best rates.
Include: car loans, student loans, credit card minimums, personal loans, alimony, child support. Don't include: utilities, groceries, gas, Netflix, phone bills.
Pay off small debts to reduce DTI. Pay down credit cards below 30% utilization. Don't open new credit cards. Get added as authorized user on old account with perfect history.
Minimum scores by loan type:
Credit score impact on rates (on $300K loan):
Action items: If below 740, spend 3-6 months improving before buying. Pay off collections, reduce credit card balances to under 30%, dispute credit report errors.
Quick calculation using 28/43 rule:
On a $400K house with 20% down ($80K), your loan is $320K. At 7% interest:
Income needed: $2,679 ÷ 0.28 = $9,568/month = $115,000/year
If you have existing debts:
With FHA (3.5% down): Need about $100K/year due to higher interest and PMI
Debts that COUNT toward DTI:
Debts that DON'T COUNT:
Special cases:
Yes, but it's complicated:
Both on the loan (recommended if both have decent credit):
Only one person on loan (if one has bad credit):
Example scenario:
Person A: 780 credit, $80K income, $200/mo debts
Person B: 620 credit, $60K income, $800/mo debts
Option 1 - Both on loan: $140K combined income, but 620 credit = 8% rate
Option 2 - Only A on loan: $80K income, 780 credit = 6.5% rate
Often better to use just the high-credit spouse, then refinance later to add the other person after improving their credit.
Immediate actions (this week):
Short-term improvements (1-3 months):
Example impact:
Starting: $70K income, $700/mo debts, 680 credit = Qualify for $280K home
After improvements: $70K income, $300/mo debts, 740 credit = Qualify for $350K home
Gained $70K in buying power!
Pre-Qualification (soft check):
Pre-Approval (hard check):
When to get each:
Pro tip: Get pre-approved by 2-3 lenders to compare rates, then choose the best one.
Tools that work well with this calculator