How to Buy a House in the U.S.: A Step-by-Step Guide for Newcomers

Quick answer

To buy a house in the U.S. you need: (1) documentable income — pay stubs, tax returns, or bank statements if self-employed; (2) a credit history or alternative payment references; (3) down payment funds — as little as 3.5% with FHA, with assistance programs available; and (4) a loan path that fits your documentation: an SSN qualifies you for every major program, and an ITIN-only borrower can still buy through an ITIN loan. The process runs from pre-approval through house hunting, offer, inspection, and closing — typically 30–45 days from signed contract to keys.

What It Takes: The Four Pillars

Every U.S. mortgage is evaluated on the same fundamentals, regardless of lender or program:

1. Documentable income — pay stubs and W-2s if employed; tax returns or 12–24 months of bank statements if self-employed. What matters is that income can be documented, not how you're paid.
2. Credit — a FICO score of 580+ opens the FHA door (620+ for conventional). No U.S. credit history? Some programs accept alternative references: on-time rent, utilities, and phone payments.
3. Down payment — as little as 3.5% with FHA and 3% on first-time-buyer conventional programs. Gift funds from family are allowed with a simple letter.
4. A loan path that fits your documentation — citizenship and permanent residency aren't required for every program. With an SSN and work authorization you qualify for FHA and conventional; with only an ITIN, the ITIN path exists (next section).

What If I Don't Have a Social Security Number?

You can buy a home with only an ITIN — the taxpayer identification number the IRS issues to people who file taxes without an SSN. ITIN loans come from portfolio lenders: they typically ask for 15–20% down (with options as low as 3.5% on specific programs), two years of tax returns filed under your ITIN, and rates somewhat above conventional. It isn't the cheapest road, but it's real, it's legal, and thousands of families buy this way every year. The underlying requirement is the same as always: documentable income and a record of paying on time. If you've been filing taxes under your ITIN for years, you've already built half the file without knowing it.

How Much Cash Do I Actually Need?

The number that stops most people is smaller than they imagine. For a $500,000 home with FHA:

• 3.5% down payment — $17,500 (can be a documented gift from family).
• Closing costs — typically another 2–3% ($10,000–$15,000); sellers sometimes agree to cover part, and California assistance programs can help with both down payment and closing costs.
• Reserves — some programs want to see one or two months of the payment in the bank after closing.

All figures are illustrative examples, not a quote. Your real numbers depend on your situation, price, and program — pre-approval puts them in writing.

The Process, Step by Step

Here's how a U.S. purchase runs, in order:

1. Pre-approval — before house hunting. Your income, credit, and funds get reviewed, and you receive a letter stating what you can buy. Without it, sellers in this market won't take your offer seriously.
2. House hunting with a real estate agent — usually costs the buyer nothing; the agent's commission comes out of the transaction.
3. Offer and contract — when your offer is accepted, you deposit earnest money (typically 1–3%) that later applies toward your purchase.
4. Inspection and appraisal — an inspector checks the home's condition (you decide whether to proceed or renegotiate) and the lender orders an appraisal to confirm value.
5. Final approval — the lender verifies the complete file. Golden rule: open no new credit and make no large purchases during this window.
6. Closing — you sign, the loan funds, and the keys are yours. Contract to closing typically runs 30–45 days.

The Most Common First-Buyer Mistakes

After years of walking families through their first purchase, these are the stumbles that repeat most:

• House hunting before pre-approval — falling for a home the numbers can't reach, or losing the one they could because there was no letter.
• Keeping savings in cash at home — lenders must trace funds; money needs to sit in a bank account two to three months ahead.
• Opening a car loan or furniture credit mid-process — it can sink the approval days before closing.
• Assuming no SSN means no options — the ITIN path exists; ask before ruling yourself out.
• Not asking for things in the language you think in — you have the right to understand every paper you sign. Working with a bilingual professional isn't a luxury; it's protection.

Common questions

Can I buy a house in the U.S. without being a citizen?

Yes. Citizenship isn't required. With an SSN and work authorization you qualify for FHA and conventional loans; with only an ITIN you can buy through a portfolio lender's ITIN loan. What every program requires is documentable income and traceable funds.

How much down payment do I need to buy a house?

As little as 3.5% with FHA (580+ credit) and 3% on first-time-buyer conventional programs. ITIN loans typically ask 15–20%, with options as low as 3.5% on specific programs. Budget another 2–3% for closing costs — and ask about California's assistance programs.

Can I buy a home with no U.S. credit history?

On several programs, yes — alternative payment references like on-time rent, utilities, and phone bills are accepted, typically 12 months of history. If you have time before buying, building credit with a secured card improves both your options and your rate.

How long does the home-buying process take?

From accepted offer to closing, typically 30–45 days. Pre-approval beforehand takes one to three days with complete documents. House hunting is the unpredictable part — a week for some buyers, months for others.

Can family gift me money for the down payment?

Yes — FHA and conventional programs allow gift funds from family, documented with a simple letter confirming it's a gift, not a loan. Funds must be traceable, so move them through a bank, not in cash.