Buying a home remains the largest financial commitment most American households ever make. Before you tour open houses or make an offer, understanding mortgage eligibility saves time, protects your earnest money deposit, and prevents painful surprises at the closing table. Lenders do not simply glance at a Credit Karma score and stamp approval — they analyze your entire financial picture against guidelines set by investors, government agencies, and their own risk departments.
This checklist walks through what U.S. mortgage underwriters evaluate, how FHA, VA, and conventional programs differ, and what you can do months before applying to strengthen your profile. Whether you are a first-time buyer in Austin or upgrading in suburban Chicago, the fundamentals are the same even when local home prices and property taxes vary dramatically.
Credit score requirements by loan type
Your credit score predicts how likely you are to repay a 15- or 30-year obligation. Mortgage lenders typically pull a tri-merge credit report and use the middle FICO score among the three bureaus — Experian, Equifax, and TransUnion. Scores you see on free apps are often VantageScore and may differ from the FICO version your lender uses.
- Conventional conforming loans: Many lenders want 620 minimum for approval, but 740+ unlocks the best rates and lowest PMI costs. Fannie Mae and Freddie Mac set baseline standards; individual lenders may overlay stricter cutoffs.
- FHA loans: Insured by the Federal Housing Administration. Borrowers with 580+ FICO can qualify with 3.5% down; scores between 500 and 579 may be accepted with 10% down at participating lenders.
- VA loans: Guaranteed by the Department of Veterans Affairs for eligible active-duty service members, veterans, and surviving spouses. No official minimum credit score from VA, but most lenders impose 620 or similar overlays.
- USDA loans: For eligible rural and suburban properties with income limits. 640 is a common lender threshold for streamlined underwriting.
Recent late payments, collections, charge-offs, and bankruptcies weigh heavily. Chapter 7 bankruptcy typically requires a waiting period of four years from discharge for conventional loans (two years for FHA with extenuating circumstances documentation). Foreclosures carry longer waiting periods unless you qualify for an exception.
Debt-to-income ratio: the affordability gate
DTI measures how much of your gross monthly income goes toward debt obligations. Lenders calculate two versions:
- Front-end (housing) DTI: Proposed mortgage payment — principal, interest, property taxes, homeowners insurance, HOA dues, and mortgage insurance — divided by gross monthly income. Conventional guidelines often target 28% or lower, though flexibility exists with strong compensating factors.
- Back-end (total) DTI: Housing payment plus all other monthly debt obligations (car loans, student loans, credit card minimums, personal loans, child support) divided by gross income. Conventional limits frequently cap at 43% to 45%; FHA may allow up to 50% with automated approval and reserves.
Example: A household earning $8,000 gross per month with $400 in non-housing debt could support a housing payment around $1,840 while staying near 28% front-end DTI, or roughly $2,800 total housing if pushing a 45% back-end ratio with the same other debt. Run your own numbers before falling in love with a listing priced beyond reach.
Student loans receive special treatment: lenders may use the payment on your credit report, 0.5% to 1% of the balance as a hypothetical payment if deferred, or income-driven repayment amounts for federal loans. Paying down revolving balances before applying lowers DTI quickly because minimum card payments drop as balances shrink.
Down payment and loan-to-value ratio
Your down payment determines loan-to-value ratio (LTV) — loan amount divided by appraised value or purchase price, whichever is lower. Lower LTV means less lender risk and often better terms.
- Conventional: As little as 3% down for first-time buyers through programs like Fannie Mae HomeReady or Freddie Mac Home Possible. Standard conventional loans allow 5% down. Below 20% down, private mortgage insurance (PMI) is required until you reach 78% LTV through payments or reach 80% and request removal.
- FHA: 3.5% minimum down with qualifying credit. FHA mortgage insurance includes an upfront premium (often financed into the loan) and annual premiums that typically last the life of the loan unless you put at least 10% down and meet term requirements for MIP cancellation.
- VA: Zero down for eligible borrowers with full entitlement. VA funding fee applies but can be rolled into the loan; waived for many disabled veterans.
- USDA: Zero down for income-eligible buyers in qualifying areas.
Gift funds from family are widely accepted with a gift letter and documentation proving the donor's ability to give. Large unexplained deposits on bank statements trigger underwriting questions — transfer gift money well before your application window and keep paper trails clean.
Employment and income verification
Lenders want confidence that your income will continue through the loan term. W-2 employees typically provide:
- 30 days of recent pay stubs showing year-to-date earnings
- W-2 forms for the past two years
- Two years of federal tax returns if commission, bonus, or overtime income is significant
- Written verification of employment (VOE) from HR near closing
Self-employed borrowers — freelancers, sole proprietors, LLC owners — face more scrutiny. Most lenders average net self-employment income from two years of personal and business tax returns, adding back certain non-cash deductions like depreciation. A declining income trend raises red flags even if the most recent year looks strong. Keeping business and personal finances separate, maintaining consistent profitability, and avoiding large unexplained write-offs in the two years before buying all help.
Part-time, seasonal, and gig income generally requires a two-year history to count. Alimony and child support can qualify if documented by court orders and a track record of receipt. Rental income from investment properties usually requires lease agreements and may be discounted by 25% to account for vacancies.
Cash reserves and assets
Beyond the down payment and closing costs, underwriters check that you will not drain every dollar at closing. Reserves are months of housing payments left in liquid accounts afterward. Requirements vary: one to two months is common for conventional primary residences; FHA may require none for automated approval but manual underwrites often want reserves; investment properties frequently demand six months or more.
Acceptable assets include checking, savings, money market accounts, stocks, bonds, and vested retirement funds (sometimes discounted). Large withdrawals from 401(k) loans or IRA distributions before applying can complicate underwriting. Cryptocurrency may not count unless liquidated and seasoned in a traditional account.
Closing costs in the U.S. typically run 2% to 5% of the purchase price, covering appraisal, title insurance, lender fees, prepaid property taxes, and escrow setup. Sellers can contribute toward buyer closing costs within program limits — often 3% to 6% depending on LTV and loan type.
Property eligibility and appraisal
The home itself must meet lender and program standards. Appraisers confirm value and note health and safety issues. FHA and VA loans follow minimum property requirements — peeling paint, broken steps, or non-functioning heating systems can require repairs before closing. Condominiums need project approval (Fannie Mae warrantable status or FHA condo approval). Manufactured homes must be permanently affixed and meet HUD standards.
If the appraisal comes in below the contract price, you renegotiate with the seller, bring extra cash to cover the gap, or walk away if your contract includes an appraisal contingency. In competitive markets, some buyers waive contingencies — a risky move unless you have surplus cash to cover a low appraisal.
Pre-qualification vs. pre-approval
Pre-qualification is a rough estimate based on self-reported income and credit — useful for early budgeting but not credible with sellers. Pre-approval involves a full application, credit pull, and document review. A pre-approval letter tells sellers you are a serious buyer with financing likely to close, though final approval still depends on the specific property, updated financials, and clear title.
Get pre-approved before house hunting in earnest. Pre-approvals typically expire in 60 to 90 days. Avoid opening new credit cards, financing furniture, or changing jobs during the escrow period — lenders re-verify finances before funding.
Document checklist to gather now
- Government-issued photo ID and Social Security number
- Two years of W-2s and federal tax returns (personal and business if self-employed)
- Recent pay stubs and bank statements (often two to three months)
- Investment and retirement account statements
- Documentation for alimony, child support, or other income
- Landlord contact information or current mortgage statement if you own
- Explanation letters for credit inquiries, gaps in employment, or large deposits
- Divorce decrees or bankruptcy discharge papers if applicable
Organize PDFs in a shared folder before your lender requests them — responsiveness speeds underwriting and reduces stress.
Program comparison at a glance
Choosing the right loan type depends on military service, location, credit profile, and how long you plan to stay in the home.
- Conventional: Best for strong credit, 3% to 20% down, PMI cancellable. No upfront government insurance premium.
- FHA: More forgiving credit and DTI; popular with first-time buyers. Mortgage insurance often lasts the full loan term on low-down-payment loans.
- VA: Unmatched for eligible veterans — no down payment, no PMI, competitive rates. Funding fee is the main upfront cost.
- USDA: Zero down in eligible areas with income caps. Guarantee fee similar in concept to FHA's mortgage insurance.
Run scenarios with a loan officer comparing total monthly payment and total cost over your expected hold period — a slightly higher rate with no monthly MI might beat FHA for a borrower planning to refinance or sell within five to seven years.
Strengthening your profile before you apply
Start preparing six to twelve months ahead if possible. Pay every bill on time — payment history drives 35% of FICO. Pay down credit card balances below 30% utilization, ideally under 10% on each card. Avoid closing old accounts, which can shorten average age of credit and raise utilization. Dispute genuine errors on your reports through AnnualCreditReport.com and bureau dispute portals.
Save aggressively for down payment and reserves in a high-yield savings account. Track spending to improve DTI. If self-employed, consider delaying large business expenses that reduce taxable income in the years lenders will review. Do not make major career moves right before closing unless your lender has approved the change in writing.
Frequently asked questions
What credit score do I need to buy a house in 2026?
Many conventional lenders require 620 minimum; FHA may accept 580 with 3.5% down. Scores of 740+ generally qualify for the most competitive conventional rates. VA and USDA have flexible or lender-specific thresholds.
What DTI ratio do mortgage lenders allow?
Front-end housing DTI is often capped near 28% to 31%; back-end total DTI commonly maxes at 43% to 45% for conventional loans. FHA automated approvals may allow up to 50% with strong compensating factors.
How much down payment do first-time buyers need?
Not always 20%. Conventional programs start at 3% down; FHA at 3.5%; VA and USDA offer 0% for eligible borrowers. A larger down payment reduces monthly payments and may eliminate mortgage insurance sooner.
Does pre-approval guarantee I will get the mortgage?
No. Final approval requires satisfactory appraisal, clear title, stable employment and finances through closing, and no adverse changes to your credit. Treat pre-approval as conditional commitment, not a guarantee.
Mortgage eligibility is achievable for millions of Americans who plan ahead and understand lender expectations. Use this checklist to audit your readiness, compare FHA, VA, and conventional paths, and gather documents before you shop. For payment estimates, see our guide on how loan monthly payments are calculated, and review secured vs. unsecured borrowing to understand why mortgages are collateral-backed loans.