Getting preapproved for a mortgage starts with choosing a lender, submitting financial documents, and letting the lender pull your credit. Most lenders offer online applications, and you can often get a preapproval letter within a day. That letter tells sellers you’re a serious buyer with financing likely to go through, which makes your offers stronger in competitive markets.
What You Need Before You Apply
Lenders want a clear picture of your income, your debts, and the cash you have available. Gathering your documents before you start the application saves time and prevents back-and-forth delays. Here’s what most lenders ask for:
- Income proof: Pay stubs from the last two months, W-2 forms from the last two years, and tax returns from the last two years if you’re self-employed, earn commission, or have rental income. Contract workers should have their 1099 forms ready.
- Asset statements: Recent statements (typically covering two months) for checking accounts, savings accounts, retirement accounts, and investment accounts. If you’re a business owner, include business account statements too.
- Employment history: Names and addresses of every employer you’ve had in the last two years.
- Residential history: Every address you’ve lived at in the last two years, plus proof of rent payments or a copy of your lease if you’re currently renting.
- Identification: A photo ID and your Social Security number or ITIN.
If your situation involves additional factors, expect extra requests. Divorced applicants typically need to provide divorce papers. If a family member is giving you money for a down payment, you’ll need a gift letter stating the funds aren’t a loan. Business owners should have a business license and profit-loss statements on hand. Bankruptcy in your past means providing those court documents as well.
Credit Score and Debt-to-Income Thresholds
Your credit score and your debt-to-income ratio (DTI) are the two numbers that matter most for preapproval. DTI compares your total monthly debt payments, including your expected mortgage payment, to your gross monthly income. If you earn $6,000 a month and your debts total $2,400, your DTI is 40%.
For a conventional loan, most lenders require a FICO score of at least 620. The maximum DTI is typically 45%, though some lenders stretch to 50% if the rest of your application is strong. FHA loans are more flexible: you can qualify with a credit score as low as 580 and put down just 3.5%. Scores between 500 and 579 may still work, but you’ll need at least 10% down. FHA guidelines set the standard DTI ceiling at 43%, but borrowers with scores of 580 or higher and other compensating factors can sometimes get approved with ratios of 50% or even above.
Before you apply, review your credit report for errors and dispute anything inaccurate. Paying down credit card balances also helps, since keeping your credit utilization ratio low (the percentage of your available credit you’re actually using) can boost your score in weeks, not months.
The Application Process Step by Step
Once your documents are ready, pick a lender and fill out their application. Many lenders handle this entirely online. You’ll enter your income, employment, assets, and the loan amount you’re seeking, then upload your supporting documents.
The lender will run a hard credit inquiry, pulling your full credit report and score. Based on everything you’ve submitted, they’ll evaluate how much they’re willing to lend you and at roughly what interest rate. If your application checks out, you’ll receive a preapproval letter stating the loan amount you qualify for. Some lenders turn this around within hours; others take a few business days.
That letter isn’t a guarantee of funding. It’s a conditional commitment based on the financial snapshot you provided. When you actually find a home and go under contract, the lender will verify everything again during the formal underwriting process and appraise the property. But for house hunting purposes, the preapproval letter signals to sellers and their agents that you can back up your offer with real financing.
Shopping Multiple Lenders Without Hurting Your Credit
Rates and fees vary meaningfully from lender to lender, so getting quotes from at least two or three is worth the effort. The concern most people have is that each lender’s credit pull will ding their score. It won’t, as long as you do your shopping within a concentrated window.
The Consumer Financial Protection Bureau confirms that multiple mortgage credit checks within a 45-day window count as a single inquiry on your credit report. The impact on your score is the same whether one lender pulls your credit or five do, provided the last check falls within 45 days of the first. So apply to several lenders in the same stretch, compare what each one offers, and pick the best deal.
How Long Your Preapproval Lasts
A preapproval letter is typically valid for 60 to 90 days, though some lenders set shorter windows of 30 days. Your letter should list either an expiration date or the number of days it remains valid. After that date, the lender considers the financial information stale since your income, debts, or credit could have changed.
If your preapproval expires before you find a home, you can renew it. Contact the loan officer listed on your letter before the expiration date and ask to refresh it. The lender will likely re-pull your credit and may ask for updated pay stubs or bank statements. Renewal can take up to 10 business days, so reach out early rather than waiting until the letter has already lapsed.
Keep in mind that significant financial changes during your preapproval period can affect your standing. Taking on new debt, switching jobs, or making large unexplained deposits into your bank account can all raise red flags when the lender re-checks your file. Keep your finances as stable as possible between preapproval and closing.
What Preapproval Costs
Most lenders don’t charge a fee for preapproval itself. You’re not paying for an appraisal or any underwriting work at this stage. The only “cost” is the hard credit inquiry, which has a minor, temporary effect on your credit score, typically a few points that recover within a few months. Some lenders may charge a small application fee, but this is uncommon for preapproval alone. If a lender asks for a significant upfront payment just to issue a preapproval letter, that’s a reason to look elsewhere.
Preapproval vs. Prequalification
These terms sound interchangeable, but they carry different weight. A prequalification is usually a quick, informal estimate based on information you self-report. The lender may not verify your income or pull your credit. It gives you a rough sense of what you might afford, but it doesn’t carry much credibility with sellers.
Preapproval involves actual document review and a credit check. The lender has looked at your pay stubs, your bank statements, and your credit history before issuing the letter. That’s why sellers and listing agents treat preapproval letters as meaningful evidence that a buyer can follow through. If you’re ready to start making offers, preapproval is the step that matters.

