Mortgage & Financing

How to Get Pre-Approved for a Mortgage: Step by Step

Updated September 10, 2026

A lender's desk with a laptop, driver's license, pay stubs, and calculator for pre-approval

Patrick's Quick Answer

Pre-approval means a lender reviews your credit, income, assets, and debts and tells you exactly what you can borrow, backed by an actual underwriting-style review, not a phone-call guess. Get it before you house-hunt, because it tells you your true price range and tells sellers you're serious. The process takes a few days once you've gathered your documents, and in 2026's San Antonio market, the pre-approved buyer writes the accepted offer.

Every week I get the same question from first-time buyers: "Where do I even start?" The answer is always pre-approval. Not neighborhood research, not Zillow deep-dives, not "someday." Let's walk the exact steps so you know what to expect.

Pre-qualified vs. pre-approved: why the letter matters

Pre-qualification is a quick estimate based on what you tell a lender verbally. Pre-approval is a review of your actual documents, credit report, income verification, and asset statements, that produces a real decision and a commitment letter stating what you can borrow.

In San Antonio's balanced market, sellers and listing agents ask whether you're pre-approved before they take your offer seriously. The letter also protects you, because you learn your true number before you fall in love with a price range you can't reach. My pre-approval vs. pre-qualification answer spells out the difference.

What you'll need to bring

Gather these before you call your lender and the process flies. The standard list:

  1. Identification: your driver's license or other government ID.
  2. Income: recent pay stubs, W-2s for the last year or two, and for self-employment, your tax returns and profit and loss statements.
  3. Assets: bank and investment statements, typically the last two months, for your savings and your down payment funds.
  4. Debts: recent statements for any loans or credit cards so your lender can verify the balances.
  5. Anything unusual: a gift letter if your down payment includes gifted money, an explanation for gaps, and documentation for rental income if you have it.

Your lender will also authorize a credit pull, which is part of the deal, not a surprise at the end. My documents checklist covers the full list for every income type.

How the lender decides

Lenders review your file through the lens of the monthly payment, built from the five components of housing cost: principal and interest, property taxes, homeowners insurance, HOA dues where they exist, and mortgage insurance where the loan needs it. Then they check your income and debts against those payments, your credit history for how you've handled money, and your assets for the down payment and closing costs.

Fair warning: you'll hear different debt-to-income cutoffs quoted online, and they drift over time and by program, so I won't quote you a universal number. Your lender will give you the current guideline for your loan type, and the honest detail work, like which debts count and how qualifying income is calculated, is where a good loan officer earns their keep. My what lenders look at answer digs into the full review.

How long it takes

With your documents ready, an initial pre-approval decision can land within a day or two, and the full letter usually follows shortly after. If your income is straightforward and your credit is clean, it's fast. If you're self-employed, have unusual income, or a recent credit event, expect a little more time while the lender verifies the details.

The right time to start is before you tour houses seriously. Pre-approval in hand, you shop with a real budget, and you're ready to write an offer the day the right home shows up.

Here's the key: pre-approval exists to protect you as much as it impresses sellers. You find out exactly what the bank will do, and you never waste a weekend touring homes you can't actually buy.

Why it makes your offer stronger

In a competitive situation, the pre-approved offer usually wins over the pre-qualified one, even at a slightly lower price, because the seller knows the deal is more likely to close. Listing agents market homes with the conversation "is the buyer pre-approved?" before they even schedule a showing.

Pre-approval also speeds up your timeline after an accepted offer: the file has already been reviewed, so appraisal, underwriting, and closing can move without rework. That's how a 30-day close becomes realistic instead of heroic. My pre-approval to keys timeline shows the full post-offer sequence.

What to do if it's not what you hoped

A lower number than you wanted is not a dead end, it's a roadmap. Ask the lender exactly what moved the decision: credit? income? assets? debts? Then fix what's fixable: pay down revolving balances, correct credit report errors, shore up documentation, or widen the down payment. Most buyers who get turned down once, fix one or two things, and come back approved in a few months.

You can also run the comparison across lenders, because every shop weighs a file differently and fees vary. What matters is getting to a real, funded-worthy approval with a lender you trust. My how to choose a lender guide gives you the questions to ask before you hand anyone your documents.

Ready to make it real? Start your 2-minute pre-approval check and I'll personally review your details and walk you through the next step. No credit pull, no obligation, just a real conversation with a licensed loan officer and REALTOR who's on your side.

Let's get you pre-approved this week.

Send me your documents and I'll have your pre-approval conversation this week: what you qualify for, what your payment really looks like, and any move that improves your number before you start touring.

Frequently Asked Questions

Does getting pre-approved hurt my credit score? Tap to expand
A single credit pull for a mortgage application causes a small, temporary dip, and multiple mortgage inquiries within a short window are treated as one inquiry for scoring purposes. The small dip is a non-issue next to the benefit of knowing your real budget.
How long does a pre-approval stay valid? Tap to expand
Most pre-approval letters carry an expiration, commonly 60 to 90 days, and they assume your financial picture stays similar. If your credit, job, or assets change, or the letter expires on a new-construction timeline, you simply refresh it with an updated review.
Can I get pre-approved before I've found a home? Tap to expand
Absolutely, and you should. Pre-approval is based on your financial picture, not a specific house. It tells you your price range before you start touring, which is the entire point of doing it early.

The first step is one conversation

I'm a licensed loan officer in Texas, and getting you pre-approved is the part of my job I love most, because everything gets real and clear from there.

Patrick Kevin Fagan portrait

Patrick Kevin Fagan

Loan Officer and Realtor | AXEN Realty LLC | San Antonio and Texas Hill Country

Licensed Sales Agent | 454749 | TX

Sincerely, Patrick Kevin Fagan

Pre-approval details in this post are directional and change with program rules and lender policies. Your specific decision depends on your file, the lender, and the program, so ask your lender for current standards.

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