Getting pre-approved for a mortgage means submitting your financial documents to a lender, who then verifies your income, assets, and credit to tell you how much they’re willing to lend. The process typically takes a few days, and the resulting letter is valid for 30 to 60 days. Here’s what you need to do, step by step.
What Pre-Approval Actually Means
A pre-approval letter tells sellers and real estate agents that a lender has reviewed your verified financial information and is willing to lend you up to a specific amount. It’s not a guaranteed loan offer, but it carries more weight than a pre-qualification, which some lenders issue based on self-reported information alone. That said, lenders use these terms inconsistently. Some call their verified process a “pre-qualification,” while others reserve “pre-approval” for it. What matters is whether the lender actually pulled your credit and reviewed your documents, not which word they put on the letter.
In competitive housing markets, sellers often won’t consider an offer without a pre-approval letter. It signals that you’re a serious buyer who can likely close the deal.
Check Your Credit Score First
Before you apply, know where your credit stands. The minimum score depends on the type of loan you’re pursuing. Conventional loans require at least a 620 credit score. FHA loans allow scores as low as 580 with a 3.5% down payment, or 500 to 579 if you can put 10% down. VA and USDA loans don’t have official minimums set by the government, but most lenders want at least 620 for VA loans and 640 for USDA loans.
If your score is below these thresholds, focus on improving it before applying. Pay down credit card balances, dispute any errors on your credit report, and avoid opening new accounts. Even a modest score increase can open up better loan options and lower interest rates.
Documents You’ll Need to Gather
Lenders verify everything during pre-approval, so have your paperwork ready before you start. The core documents fall into a few categories.
Income and employment: You’ll need pay stubs from at least the past 30 days (60 days if you’re paid monthly), tax returns and W-2s from the past two years, and contact information for your employers over that same period. If you earn bonuses, child support, alimony, disability benefits, pension payments, or Social Security income, bring documentation for those as well.
Assets: Gather bank statements from checking, savings, and money market accounts covering the past two to three months. Include recent statements for retirement accounts like 401(k)s and IRAs, along with any brokerage or investment accounts. If someone is gifting you money for a down payment, you’ll need a gift letter from that person.
Debts: Collect recent statements for auto loans, student loans, credit cards, personal loans, and any other outstanding debt. The lender will also pull your credit report directly with your permission.
Identity: Bring a government-issued photo ID (driver’s license, passport, or state ID) and your Social Security card. You’ll also need your recent addresses and how long you lived at each. If you rent, have your landlord’s contact information and proof of rent payments handy.
Special Circumstances
Self-employed borrowers typically need to provide year-to-date profit and loss statements, a list of accounts receivable, and 1099 forms in addition to tax returns. If you already own a home, the lender will want details about its value, monthly expenses, and any existing mortgage. Veterans applying for a VA loan need a Certificate of Eligibility issued by the Department of Veterans Affairs.
How Lenders Evaluate Your Application
Beyond your credit score, lenders focus heavily on your debt-to-income ratio, or DTI. This is the percentage of your gross monthly income that goes toward debt payments, including the projected mortgage payment. A lower DTI signals that you can comfortably handle the loan.
Conventional loan lenders prefer a DTI of 45% or below, though borrowers with strong credit and cash reserves may qualify with ratios up to 50%. FHA loans cap DTI at 43%, with a possible bump to 45% for energy-efficient homes. VA loans set the limit at 41%, and USDA loans also cap at 41%, with exceptions up to 44% for borrowers with a credit score of 680 or higher, cash reserves, and two years of job stability.
To calculate your own DTI, add up all your monthly debt payments (car loan, student loans, minimum credit card payments, any other obligations) plus your estimated mortgage payment, then divide by your gross monthly income. If you earn $6,000 a month and your total debt payments including the new mortgage would be $2,400, your DTI is 40%.
Shop Multiple Lenders Without Hurting Your Score
Each lender will run a hard credit inquiry when you apply, which can temporarily lower your score by a few points. But credit scoring models account for rate shopping. Newer versions of the FICO score treat all mortgage inquiries within a 45-day window as a single inquiry. Older FICO versions use a 14-day window. Either way, you have time to compare offers from several lenders without compounding the credit impact.
Getting quotes from at least three lenders is worth the effort. Interest rates, fees, and closing costs vary meaningfully from one lender to the next, and even a small rate difference can save you thousands over the life of the loan. Compare the annual percentage rate (APR), which reflects the interest rate plus lender fees, to get the most accurate comparison. When you receive pre-approval letters, pay attention to the loan amount, the interest rate (and whether it’s locked or estimated), and any conditions attached.
What Happens After You’re Pre-Approved
Your pre-approval letter will specify the maximum loan amount and typically expires within 30 to 60 days. If your home search takes longer, you can ask the lender to renew it, though they may re-pull your credit and request updated documents.
During this window, protect your financial profile. Avoid taking on new debt, making large purchases on credit, changing jobs, or moving money between accounts in ways that are hard to document. Any of these changes can alter your DTI, credit score, or employment status enough to jeopardize final loan approval. The pre-approval is based on a snapshot of your finances at the time of application, and the lender will verify everything again before closing.
Once you find a home and make an offer, the lender moves into full underwriting. They’ll order an appraisal, verify that nothing has changed in your financial picture, and finalize the loan terms. If your finances have stayed stable since pre-approval, this process is typically smoother and faster.
How Long the Process Takes
If your documents are organized and ready, many lenders can issue a pre-approval letter within one to three business days. Some online lenders offer same-day decisions for straightforward applications. Self-employed borrowers or those with complex financial situations may wait longer as the lender works through additional documentation. Starting the process early, ideally before you begin house hunting, gives you time to address any issues that come up and puts you in a stronger position when you’re ready to make an offer.