ITIN Mortgage Guide: Buy a Home Without SSN

Millions of immigrants live, work, and pay taxes in the United States without a Social Security number – and many of them want to buy a home. The good news: you don't need an SSN to get a mortgage. ITIN loans – mortgages underwritten using an Individual Taxpayer Identification Number – give non-citizen borrowers a real, documented path to homeownership with competitive terms and no requirement to have established US credit.

This guide breaks down exactly how ITIN mortgages work, what documentation lenders require, how much down payment to expect, and what the approval process actually looks like from start to finish.

Who ITIN Loans Are For

ITIN loans serve a specific borrower: someone who lives and works in the United States, files US tax returns using an ITIN rather than an SSN, and cannot access conventional mortgage programs because those programs require a valid SSN. This includes:

• Undocumented immigrants who have been filing US taxes for years and have stable income but no path to an SSN under current immigration status
• DACA recipients who have work authorization but whose SSN may not be accepted by all conventional loan programs depending on lender overlays
• Non-resident aliens who live primarily outside the US but have US income and want to purchase US property (note: this overlaps with foreign national loans, which are a separate product with different documentation requirements)
• Visa holders with certain visa categories that don't qualify for SSNs in some cases

The key distinguishing factor is the tax filing history. Lenders who do ITIN loans are specifically looking for borrowers who can show they've been consistently filing US taxes – this demonstrates long-term economic ties to the country and a documented income trail. Borrowers who have been filing taxes with an ITIN for two or more years are the strongest candidates.

Required Documentation

ITIN loan documentation is more extensive than a standard conventional loan because lenders are compensating for the absence of the credit and identification infrastructure that SSN-based borrowers have access to. Here's what to have prepared:

The income documentation requirement deserves special attention. ITIN borrowers who have been filing taxes for two years typically provide those tax returns (1040 with ITIN) as the primary income document. Lenders will look at Schedule C (self-employment), W-2s (employer income), or Schedule E (rental income) exactly as they would for any other borrower.

For ITIN borrowers who are self-employed and whose tax returns show significant write-downs – a common situation – a bank statement loan using 12 or 24 months of deposits is often a better path. Read our self-employed mortgage guide for more strategies. Many ITIN-friendly lenders offer bank statement income as an alternative to tax returns, and for business owners whose reported income is lower than their actual cash flow, this can substantially increase the qualifying loan amount.

Down Payment Requirements

ITIN loans require more down than conventional loans because they don't have the GSE backing (Fannie/Freddie) that allows 3–5% down programs. Expect the following:

• Primary residence, strong credit profile: 10–15% down is available at select lenders for borrowers with documented US credit history, two years of tax filings, and stable employment. This is the best-case scenario.
• Primary residence, limited US credit: 20–25% down is the standard requirement. At this LTV, lenders have sufficient collateral coverage to offset the reduced credit documentation.
• Investment properties: 25–30% down is typical for non-owner-occupied properties financed with ITIN. Some lenders combine ITIN qualification with a DSCR underwriting approach, where the property's rental income is the primary qualifier.

Down payment funds must be fully documented and sourced. Lenders will require 60–90 days of bank statements showing the funds have been in the account – or a clear paper trail if the funds came from a specific event like a property sale, business distribution, or gift. Gifts are acceptable at most ITIN lenders but require a signed gift letter and documentation of the donor's ability to give.

Eligible Property Types

ITIN loans are available for a range of property types, though each lender has its own property eligibility matrix. Here's the general landscape:

The most straightforward ITIN purchase is a single-family primary residence. The more complex the property type – mixed-use, non-warrantable condo, rural acreage – the fewer lenders will consider it, and the more important it becomes to work with a broker who has deep relationships in the ITIN lending space rather than simply submitting to the first lender you find.

Rates & Lender Requirements

ITIN mortgage rates are typically 1–2% higher than comparable conventional rates, reflecting the additional documentation complexity and the non-agency nature of the product. In a market where conventional 30-year rates are at 7%, expect ITIN rates in the 8.5–10% range depending on LTV, credit profile, and lender.

Key lender requirements to understand before you apply:

• Minimum credit score: Many ITIN programs require no US credit score if the borrower has strong alternative credit references. Where a US score exists, 580–600 is typically the floor; 640+ gets meaningfully better pricing.
• Tax filing history: Two consecutive years of US tax filings using the same ITIN is standard. Some lenders accept one year for particularly strong files.
• Debt-to-income: Most ITIN lenders cap DTI at 43–50%. Self-employed borrowers using bank statement income may have more flexibility.
• Reserves: 3–6 months PITI in documented liquid accounts after closing is standard. This requirement is non-negotiable at most lenders – it demonstrates the borrower can weather income interruptions.
• Property occupancy: Most ITIN programs are written for primary residences or second homes. Investment-only ITIN programs exist but are less common and typically require larger down payments.

The Application Process Step by Step

Applying for an ITIN mortgage is similar to any mortgage process, with some differences in the documentation phase. Here's what to expect:

• Step 1 – Pre-qualification: Work with a non-QM specialist who has specific experience with ITIN loans. Provide your ITIN, a summary of income, estimated down payment, and target purchase price. They should be able to tell you quickly which programs you'd likely fit and what rate range to expect.
• Step 2 – Document collection: Gather all required documents (see the table above). Have your last two years of tax returns ready in full – not just the 1040 but all schedules. Make sure your ITIN is not expired; the IRS deactivates ITINs that haven't been used in three consecutive tax years, and lenders require an active ITIN.
• Step 3 – Formal application and underwriting: Once in contract on a property, the underwriting file is assembled. Expect an underwriting timeline of 3–4 weeks for ITIN files – slightly longer than a conventional file because manual review is required for the alternative credit and identification documents.
• Step 4 – Appraisal and title: Standard process. ITIN status does not affect property appraisal or title work – these proceed identically to any other purchase.
• Step 5 – Closing: You'll sign the same closing documents as any other borrower. Your ITIN is used where an SSN would normally appear on the mortgage and note. Some title companies are unfamiliar with ITIN closings – your loan officer should confirm the title company has handled them before.