Pre-Approved for a Mortgage: What It Means and How Long It Lasts
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Being pre-approved for a mortgage means a lender has looked at your income, debts and credit and says it is "generally willing to lend to you, up to a certain amount," in the words of the Consumer Financial Protection Bureau (CFPB). It is a strong first step, but it is not a final loan offer. If you are buying a new-construction home, the papers behind your pre-approval can go out of date before the house is finished, so plan to update them.
Here is what a pre-approval is, what lenders check, how long the paperwork stays good, and what new-build buyers should do while they wait.
What does it mean to be pre-approved for a mortgage?
A pre-approval letter tells sellers and builders that a lender has reviewed your finances. The CFPB describes it as "a letter from a lender that says the lender is generally willing to lend to you, up to a certain amount," based on "certain assumptions" (CFPB).
The key words are "generally willing." The CFPB also says these letters "are not guaranteed loan offers" (CFPB). Your final approval comes later, after the lender checks the home, the appraisal and your finances again.
So being pre-approved is like getting a "yes, so far." It helps you shop with a real budget. It does not lock in your loan.
What is the difference between pre-qualified and pre-approved?
Many people use these words as if they mean the same thing. Lenders do not always agree either.
The CFPB says "some lenders offer a prequalification letter based on unverified information that you report." Some lenders only use the word "preapproval" after they have checked your information. Others use the two words loosely (CFPB).
The safe move: ask your lender one simple question. "Did you verify my income, assets and credit, or is this based on what I told you?" A letter based on checked papers carries more weight.
What documents do you need to get pre-approved?
The CFPB's loan application checklist lists what lenders usually ask for (CFPB):
Pay stub for the last 30 days
W-2 forms for the last two years
Signed federal tax returns for the last two years
Papers for any other income
Your two most recent bank statements
Proof of where your down payment is coming from
Proof of identity, such as a driver's license
Your Social Security number
Gather these before you call. It makes the process faster and shows the lender you are ready.
Does getting pre-approved hurt your credit score?
A lender will pull your credit. The good news is that shopping around is treated kindly. The CFPB says: "Within a 45-day window, multiple credit checks from mortgage lenders are recorded on your credit report as a single inquiry" (CFPB).
That means you can compare lenders inside that window without stacking up separate hits. Want to know what score you need first? See our guide on the credit score needed to buy a house.
How long does a mortgage pre-approval last?
There is no single national expiration date for a pre-approval letter. Each lender sets its own. Ask yours for the date in writing.
What does have firm limits is the paperwork behind your loan. For loans sold to Fannie Mae, the Selling Guide says "the credit documents must be no more than four months old on the note date." That rule applies to "all mortgage loans (existing and new construction)." Credit documents include "credit reports and employment, income, and asset documentation" (Fannie Mae Selling Guide B1-1-03).
If they are older than that, "the lender must update them."
Your job also gets checked again near the end. For a paid employee, "the lender must verify the borrower's employment no more than 10 business days on or before the note date" (Fannie Mae Selling Guide B3-3.1-04).
Here is a quick look at the time limits that matter most:
Time limit | What it means for you | Source |
|---|---|---|
45 days | Mortgage credit checks in this window count as one inquiry | CFPB |
3 business days | A lender must give you a Loan Estimate after your application | CFPB |
4 months | Credit, income and asset papers must be this new on the closing (note) date | Fannie Mae B1-1-03 |
10 business days | Your job is checked again this close to the note date (paid employees) | Fannie Mae B3-3.1-04 |
What can change between pre-approval and closing?
A lot can happen between your letter and your closing day. Three things matter most.
1. Your rate. A pre-approval does not lock your interest rate. Rates move every week. In Freddie Mac's survey, the 30-year fixed averaged 7.28% for the week of Oct. 1, 2026, up from 7.03% the week before (Freddie Mac PMMS). Read when to lock your mortgage rate before you sign.
2. Your debts. The CFPB warns: "Be careful making any big purchases on credit before you close on your home." It adds, "Even financing a new refrigerator could make it harder for you to get a mortgage" (CFPB Your Home Loan Toolkit). New debt changes your debt-to-income ratio.
3. Your job. Since your employment is checked again right before closing, talk to your lender before you change jobs.
What this means for new-construction buyers
Buying a home that is still being built adds one big twist: time. Your closing date depends on when the builder finishes the home. See how long it takes to build a house.
That gap matters because of the four-month rule above. If your home will not be done for a while, expect your lender to ask for fresh pay stubs, bank statements and a new credit report before closing.
Here is a simple plan:
Get pre-approved before you sign with a builder. A letter shows the builder you can finance the home.
Ask your lender how the timing works. Tell them the builder's expected finish date and ask what they will need to update, and when.
Keep your finances steady. Same job, no new loans, no big purchases on credit until after closing.
Compare lenders, even if the builder suggests one. The CFPB says "getting multiple Loan Estimates can help you save money" (CFPB).
Know your deposit rules. Read how an earnest money deposit works on new construction.
Want today's numbers for a specific community? Call 561-704-0091.
How do you get a Loan Estimate to compare lenders?
You do not have to hand over a stack of papers just to compare offers. The CFPB says that "to receive a Loan Estimate, you only need to submit six key pieces of information": your name, your income, your Social Security number, the home's address, an estimate of the home's value, and the loan amount you want (CFPB).
Once a lender has your application, "the lender must provide you a Loan Estimate within three business days" (CFPB).
The CFPB's toolkit suggests you "get at least three offers—in writing—so that you can compare them" (CFPB Your Home Loan Toolkit).
Common Questions
Is a pre-approval a guarantee that I will get the loan?
No. The CFPB says pre-approval letters are not guaranteed loan offers. The lender still checks the home, the appraisal and your finances again before final approval.
How long is a mortgage pre-approval good for?
Each lender sets its own expiration date, so ask yours. For Fannie Mae loans, your credit, income and asset papers must be no more than four months old on the note date, or the lender must update them.
Will shopping for a mortgage lower my credit score?
The CFPB says multiple credit checks from mortgage lenders within a 45-day window are recorded as a single inquiry. That lets you compare lenders without a separate hit for each one.
What is the difference between pre-qualified and pre-approved?
The CFPB says some lenders give a prequalification letter based on unverified information you report. Lenders use the terms differently, so ask whether your income, assets and credit were actually checked.
Can I change jobs after I get pre-approved?
Talk to your lender first. Fannie Mae requires lenders to verify a paid employee's job no more than 10 business days before the note date, so a change can affect your loan.
Do I need to update my pre-approval if my new home takes months to build?
Often, yes. Fannie Mae says credit documents must be no more than four months old on the note date for new construction too. Expect to send fresh pay stubs and bank statements before closing.
Ready to take the next step?
Call 561-704-0091 to talk with a National House Search specialist, or Schedule a visit.
Related reading: What credit score do you need to buy a house? · When should you lock your mortgage rate? · How long does it take to build a house?
This is general information, not financial, tax or legal advice. Figures checked October 8, 2026.