Mortgage Loan Requirements: What You Need to Qualify

Quick answer

To qualify for a mortgage you generally need five things: (1) credit history — the score range depends on the program, and FHA works with bruised credit; (2) documented income — W-2s, tax returns, or bank statements for self-employed; (3) a down payment — from 0% (VA) and 3–3.5% (conventional/FHA) up; (4) a debt-to-income ratio typically under about 43–50% depending on the program; and (5) documentation — ID, two years of income history, and asset statements. Weakness in one area can often be offset by strength in another.

Requirement 1: Credit

Lenders read your credit two ways: the score, which drives pricing, and the story — how you've handled payments recently. Recent history outweighs old problems, and different programs draw the line differently: conventional loans reward strong scores with the best rates, FHA is built for buyers whose credit took hits, and portfolio programs (like ITIN loans) can weigh alternative history — rent, utilities, remittances — alongside the score. If your report has issues, the order matters: bring past-due accounts current first, pay down card balances second, and dispute genuine errors — a few months of that routinely moves a file from declined to approved.

Requirement 2: Income You Can Document

The rule isn't "a big salary" — it's income a lender can verify and reasonably expect to continue. That includes more than paychecks:

• W-2 employment — the simplest file: recent pay stubs plus two years of W-2s.
• Self-employment — two years of tax returns, or a bank-statement program that qualifies you on deposits when write-offs shrink your taxable income.
• Social Security, pension, and disability income — all count, and can be grossed up in qualifying math since much of it is untaxed.
• Rental income, part-time work, and steady overtime — countable with history.
• ITIN filers — tax returns filed with your ITIN document your income the same way.

Requirements 3 and 4: Down Payment and Debt-to-Income

Down payment first: the floors are lower than folklore says — 0% for VA, 3% conventional for qualifying first-time buyers, 3.5% FHA. Gift funds from family are allowed with a simple letter, and California assistance programs can cover part of it. Plan separately for closing costs (roughly 2–5% of the price). Debt-to-income (DTI) is the quieter requirement that decides more files than credit does: add up your monthly debt payments including the new mortgage, divide by gross monthly income, and most programs want the result under about 43–50%. In high-priced California markets, DTI — not credit — is usually the binding constraint, which is why paying off a $400/month car loan sometimes adds more buying power than a decade of credit-score polishing.

Requirement 5: the Paperwork

The standard document stack, worth gathering before you apply:

• Government-issued ID (and your ITIN documentation if you file that way).
• Income records — pay stubs, W-2s or tax returns for two years, or bank statements for self-employed programs.
• Asset statements — two to three months of bank accounts showing your down payment and reserves.
• Explanations for anything unusual — large deposits, employment gaps, past credit events. A short letter usually settles it.

A pre-approval runs this whole checklist for real before you shop — it's the single best way to find out where you stand, and it makes your offers stronger.

When One Requirement Is Missing

Missing a piece usually changes the route, not the destination:

• Thin or bruised credit → FHA, or a few months of targeted credit repair before applying.
• Income hard to document → bank-statement programs for the self-employed; ITIN programs for ITIN filers.
• Down payment short → gift funds, assistance programs, or a lower-floor program than you assumed.
• DTI too high → pay down a monthly debt, add a co-borrower, or adjust the price range.

This triage is precisely a broker's job — mapping your actual file to the program that says yes, rather than making you fit one lender's box.

Common questions

What are the requirements to get a mortgage?

Five things: credit history, documentable income, a down payment (from 0–3.5% depending on program), a debt-to-income ratio typically under about 43–50%, and standard documents (ID, income records, asset statements). No single one has to be perfect.

What credit score is needed to buy a house?

It depends on the loan: FHA accommodates lower scores, conventional rewards higher ones with better pricing, and portfolio programs can consider alternative credit history. Rather than one magic number, the program is chosen to fit your credit.

How much income do I need to qualify for a mortgage?

There's no fixed salary requirement — lenders care about the ratio between your monthly debts (including the new payment) and your gross income, usually capped around 43–50%. Lower personal debts stretch the same income further.

Can I qualify without a Social Security number?

Yes — ITIN mortgage programs qualify you with your ITIN, tax returns, and income documentation. Down payments run higher than conventional loans, but the requirements follow the same five-part structure.

How long does it take to fix a weak requirement?

Often less than people fear: bringing accounts current and paying down cards can move credit meaningfully in three to six months, and paying off a single monthly debt improves DTI immediately. A broker can tell you which fix moves your file fastest.