What a mortgage pre-approval is and why you need one
A mortgage pre-approval is a lender's written statement that they will lend you up to a specific dollar amount, based on your financial information. It is not a loan offer — it is a preliminary assessment that says "we have reviewed your credit, income, and debts, and we are willing to move forward with you." The lender has not yet ordered a property appraisal or a final title search, so the pre-approval can still be withdrawn if your financial situation changes.
You need a pre-approval before you make an offer on a house because sellers and their agents want proof that you can actually close the sale. A pre-approval letter shows them that a lender has already vetted you. Without one, your offer is treated as less serious than an offer from someone who has already been through this step. In a competitive market, a pre-approval can be the difference between your offer being accepted or rejected outright.
The pre-approval process takes one to three business days if you have all your documents ready. The lender will pull your credit report, verify your income and employment, and check your debt-to-income ratio — the percentage of your monthly income that goes toward existing debts. Once they approve you, they will issue a letter stating the maximum loan amount and the interest rate they are offering (usually good for 60 to 90 days).
Key Takeaways
- A pre-approval is a lender's written confirmation that they will loan you a specific amount, based on your credit, income, and debts — but it is not a final loan commitment.
- You will need recent pay stubs, tax returns, bank statements, and a government-issued ID to start the process; some lenders also ask for proof of employment.
- The lender will pull your credit report and calculate your debt-to-income ratio, which typically needs to be below 43 percent for conventional loans.
- A pre-approval letter is usually valid for 60 to 90 days and can be withdrawn if your credit score drops, you lose your job, or you take on new debt.
- Getting pre-approved does not lock you into that lender; you can shop around and compare offers from multiple banks or mortgage brokers.
Gather your financial documents before you contact a lender
Lenders need to verify that you earn what you say you earn and that you do not already owe more than you can handle. Start by collecting two years of federal tax returns (the actual forms you filed with the IRS, not just the summary), your most recent two months of pay stubs, and bank statements covering the last two months. If you are self-employed, bring profit-and-loss statements or business tax returns instead of pay stubs.
You will also need to provide a government-issued photo ID, your Social Security number, and a list of your current debts — credit cards, car loans, student loans, and any other monthly payments. Some lenders ask for a letter from your employer confirming your job title and salary, especially if you have been in your current position for less than two years. If you have changed jobs recently, bring an offer letter from your new employer showing your start date and salary.
If you are buying with a co-borrower (a spouse or partner), both of you will need to provide the same documents. The lender will assess both of your incomes and both of your debts when calculating how much they will lend. If one of you has significantly better credit or income, you may be able to exclude the other person's debts from the calculation, but the lender will still pull both credit reports.
Choose between a bank, credit union, or mortgage broker
You have three main sources for a pre-approval: a traditional bank (Wells Fargo, Bank of America, Chase), a credit union (if you are a member), or a mortgage broker who works with multiple lenders. Banks are familiar to most people but often have stricter lending standards. Credit unions typically offer lower rates to their members and may be more flexible with borrowers who have shorter employment histories or non-traditional income. Mortgage brokers do not lend money themselves — they connect you with lenders and handle the paperwork, which can be faster but sometimes costs more in fees.
You do not have to choose just one. Getting pre-approved by multiple lenders takes a few extra days but lets you compare interest rates and closing costs side by side. When you explore to multiple lenders within a two-week window, the credit inquiries count as a single inquiry on your credit report, so your score takes only one small hit instead of several. After two weeks, each new inquiry is treated separately and will lower your score more.
Before you contact any lender, check your own credit report for errors. You can get a free copy once per year from AnnualCreditReport.com (the official site run by the three major credit bureaus). Fixing an error before you explore can raise your score by 10 to 50 points, which can lower your interest rate and increase the amount you are approved to borrow.
Submit your documents and wait for the lender's decision
Once you have chosen a lender, you will either visit a branch in person, call their mortgage department, or explore online through their website. The process is the same regardless: you provide your personal information, authorize the lender to pull your credit report, and upload or mail your financial documents. Some lenders offer a same-day or next-day decision if you explore early in the morning and all your paperwork is complete and legible.
The lender's underwriting team will review your documents, verify your income by contacting your employer or checking your tax returns, and order a credit report from all three bureaus (Equifax, Experian, and TransUnion). They will calculate your debt-to-income ratio by adding up all your monthly debt payments and dividing by your gross monthly income. For a conventional loan, this ratio usually needs to be 43 percent or lower, though some lenders will go up to 50 percent if you have excellent credit and a large down payment saved.
If the underwriter finds a discrepancy — for example, a gap in employment, a recent late payment, or a debt you did not mention — they will ask you to explain it in writing or provide additional documents. This is normal and does not mean you will be denied. Respond quickly and honestly. Once the underwriter is satisfied, they will issue a pre-approval letter with your maximum loan amount and the interest rate you have been offered.
Understand what the pre-approval letter says
Your pre-approval letter will state four key pieces of information: the maximum loan amount, the interest rate, the loan term (usually 15 or 30 years), and the expiration date. The maximum loan amount is the most you can borrow; you do not have to borrow the full amount. The interest rate shown is an estimate based on current market conditions and your credit profile — it may change slightly when you actually lock in a rate later in the process.
The letter may also include conditions, such as "subject to property appraisal" or "subject to final verification of employment." These are standard and mean that the lender will confirm these things before closing. Some letters include a note that you cannot take on new debt or make large purchases before closing — this is because new debt will raise your debt-to-income ratio and could disqualify you.
The expiration date is important. Most pre-approvals are valid for 60 to 90 days. If you have not made an offer and gone under contract within that window, you will need to get re-approved. If your financial situation has not changed, this is usually quick. If you have changed jobs, taken on new debt, or your credit score has dropped, the new pre-approval may be for a lower amount or at a higher interest rate.
Know what can cause your pre-approval to be withdrawn
A pre-approval is not a may provide. The lender can withdraw it if your circumstances change between the pre-approval and closing. The most common reasons are a significant drop in your credit score (usually from missing a payment or opening new credit accounts), a job loss or change in employment status, or taking on new debt such as a car loan or credit card balance.
Large deposits into your bank account can also trigger questions. If you deposit $10,000 or more, the lender may ask where the money came from to verify it is not a loan that you will have to repay (which would increase your debt). If you are receiving a gift from a family member for your down payment, the lender will ask for a gift letter stating that the money does not need to be repaid.
Once you have made an offer and gone under contract, the lender will order a property appraisal and a title search. If the appraisal comes in lower than the purchase price, the lender may reduce the loan amount or ask you to put down more of your own money. If the title search reveals a lien or other claim against the property, the seller will need to clear it before closing.
Use your pre-approval to make an offer
Once you have your pre-approval letter, you can start looking at houses and making offers. When you find a property you want to buy, your real estate agent will include a copy of your pre-approval letter with your offer. This tells the seller that you are a serious buyer and that financing is not a major risk. In a competitive market, having a pre-approval can make your offer stand out.
The pre-approval amount is your ceiling, not your target. If you are approved for $400,000, you do not have to spend $400,000. Many buyers choose to spend less to keep their monthly payment manageable or to have money left over for closing costs, repairs, and emergencies. Your real estate agent can help you figure out what monthly payment fits your budget and work backward to a purchase price.
After your offer is accepted and you go under contract, you will move into the next phase: the formal loan process and underwriting process. This is more thorough than the pre-approval and includes the property appraisal and title search. The pre-approval has already done most of the heavy lifting, so this phase usually moves quickly if nothing has changed in your financial situation.
Frequently Asked Questions
Does getting pre-approved hurt my credit score?
Yes, but only slightly. When the lender pulls your credit report, it counts as a hard inquiry, which typically lowers your score by 5 to 10 points. The impact is temporary — the inquiry falls off your report after two years and stops affecting your score after about one year. If you explore to multiple lenders within two weeks, all the inquiries count as a single inquiry.
Can I get pre-approved if I have bad credit?
It depends on how bad. Most conventional lenders require a credit score of at least 620, though some will go lower. If your score is below 620, you may still be able to get pre-approved through an FHA loan (backed by the Federal Housing Administration), which allows scores as low as 500 in some cases. A mortgage broker can help you find lenders who work with lower credit scores.
What if I get pre-approved but then want to switch lenders?
You can switch at any time before you lock in your interest rate. There is no penalty for getting pre-approved by one lender and then explore with another. However, once you go under contract on a house and the formal underwriting process begins, switching lenders can delay closing. It is best to shop around and choose your lender before you make an offer.
Does pre-approval mean the house will appraise for the purchase price?
No. The pre-approval is based on your finances, not the property. The lender will order an appraisal once you go under contract. If the appraisal comes in lower than the purchase price, the lender will only finance up to the appraised value. You would then need to either pay the difference out of pocket, renegotiate the price with the seller, or walk away from the deal.
How long does pre-approval take if I have all my documents ready?
One to three business days. If you explore early in the morning with complete, legible documents, some lenders can issue a pre-approval letter the same day. If documents are missing or unclear, or if the underwriter needs to verify employment or resolve a discrepancy, it may take longer. Having everything organized before you explore speeds up the process significantly.