Direct Answer
Mortgage pre-approval typically lasts 60 to 90 days. After expiration you need updated pay stubs, bank statements, and often a new credit pull. Changing jobs, new debt, or a DTI above lender limits can invalidate approval before the letter expires.
Use the DTI Mortgage Calculator to confirm you still qualify before renewing.
Last verified on: June 28, 2026
Editorial note: This guide is for educational planning only - not legal, tax, lending, or medical advice. Verify figures with official sources and qualified professionals before making decisions.
Research method: Daily Calcs reviewed primary government, regulatory, and industry sources and modeled calculator scenarios on June 28, 2026.
Pre-Approval Timeline
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| Stage | Typical duration |
|---|---|
| Initial pre-approval validity | 60-90 days |
| Under contract to closing | 30-45 days |
| Rate lock (if used) | 30-60 days |
What to Avoid After Pre-Approval
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| Action | Risk |
|---|---|
| New car loan | Raises DTI - may deny loan |
| Credit card balances up | Score drop + higher DTI |
| Job change | Income re-verification delay |
| Large undisclosed purchase | Asset depletion |
Why Pre-Approval Expires
Lenders verify income, assets, and credit at a point in time. Pay stubs age, bank balances change, and credit scores move. The 60 to 90 day window reflects how long underwriters trust those documents.
The Consumer Financial Protection Bureau (CFPB) recommends pre-approval before serious shopping - sellers in competitive markets want letters dated within 30 days.
Worked Example: $90,000 Income, Pre-Approved at 6.5%
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| Monthly obligation | Amount | Back-end DTI |
|---|---|---|
| Gross income | $7,500 | - |
| Proposed PITI (Principal, Interest, Taxes, and Insurance) | $2,100 | 28% front |
| Car loan | $450 | |
| Student loans | $280 | |
| Credit cards (min) | $75 | |
| Total debts | $2,905 | 38.7% |
Approved at pre-approval. Then buyer finances a $400/month car:
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| After new car | Amount | Back-end DTI |
|---|---|---|
| Total debts | $3,305 | 44.1% |
Many lenders cap at 43% to 45% - the new car can deny the loan at final underwriting even with valid pre-approval.
Renewal vs Fresh Application
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| Task | Initial pre-approval | Renewal |
|---|---|---|
| Pay stubs (30 days) | Required | Required |
| Bank statements | Required | Required |
| Credit pull | Yes | Often yes |
| Timeline | 1-3 days | 1-2 days |
What to Do Next
- Note expiration date on your pre-approval letter.
- Avoid new debt until closing - no car loans, furniture financing, or card balance spikes.
- Renew 2 weeks before expiry if still shopping.
- Re-run DTI if rates rise before you lock.
- Ask lender to re-date letter when submitting offers in hot markets.
Pre-Approval Maintenance Checklist
Do not do any of the following until closing:
- Open new credit accounts
- Change jobs
- Make large undisclosed purchases
- Miss debt payments
- Co-sign loans for others
Common Mistakes After Pre-Approval
Financing furniture or a car between pre-approval and closing is the most common denial cause. Even 0% promotional store cards trigger hard inquiries and new monthly obligations.
Assuming pre-approval guarantees a rate lock - it does not. Rates can rise before contract, shrinking affordable price unless you re-run DTI.
Assumptions and Limitations
Expiration windows (60 to 90 days) vary by lender overlay. Self-employed borrowers face additional documentation refresh rules. Investment properties and condos trigger stricter re-verification.
Pre-approval letters state maximum loan amount - not obligation to lend on any property. Appraisal, title, and homeowners association (HOA) review can still decline specific homes.
What This Means for Your Personal Numbers
Get pre-approved before touring homes, not after you find one you love. A letter dated within 30 days carries the most weight with sellers. Don’t open new credit or change jobs between pre-approval and closing - even a $400 car payment can push your DTI over the limit. Renew your pre-approval 2 weeks before it expires if you’re still shopping. And ask your lender to re-date the letter when you submit an offer in a competitive market.
Calculator Methodology
The DTI Mortgage Calculator computes front-end (housing) and back-end (total debt) ratios from gross income and monthly obligations.
Assumptions: You enter income, housing payment, and monthly debts.
Limitations: Lender overlays vary - this is a planning tool, not underwriting approval.
How to stress-test your result
Run a best case and worst case input side by side. Add 0.25% to rate or 10% to tax and insurance. If the result breaks your budget at the worst case, adjust your assumptions before committing.
Related Reading
- DTI Mortgage Prequalification Guide - ratio limits explained
- First-Time Homebuyer Checklist - step-by-step buying
- DTI Mortgage Calculator - check your ratios
Official and Supporting Sources
- Consumer Financial Protection Bureau (CFPB): Get a pre-approval letter
- Fannie Mae: Selling Guide - underwriting
Next Step
Confirm your DTI before shopping with the DTI Mortgage Calculator.
Frequently Asked Questions
How long does mortgage pre-approval last?
Most lender pre-approval letters expire in 60 to 90 days from the issue date. The exact window is printed on your letter. If you have not found a home before expiration, contact your loan officer to refresh documents - pay stubs, bank statements, and a new credit pull. Renewal is usually faster than the initial application because your file already exists in the lender system.
What invalidates a mortgage pre-approval?
Major financial changes after pre-approval can void your status even before expiration: new debt, job loss, large undisclosed purchases, or credit score drops. Lenders re-verify everything at underwriting. Avoid financing a car, opening credit cards, or changing jobs between pre-approval and closing. Even a small balance increase can push DTI above limits and kill the loan at the final stage.
Pre-approval vs pre-qualification: How long does each last?
Both typically share similar expiration windows, but pre-approval carries more weight because income and assets were verified. Pre-qualification is a softer estimate without document review. Sellers and listing agents prefer pre-approval letters dated within 30 days in hot markets. Ask your lender to re-date the letter when you submit an offer if the original is aging.
Can I get pre-approved by multiple lenders at once?
Yes. Multiple mortgage inquiries within a 14 to 45 day shopping window usually count as one credit inquiry for scoring purposes. Comparing Loan Estimates from two to three lenders often saves 0.125% to 0.25% in rate. Each pre-approval has its own expiration - track dates separately if you work with more than one lender.
Does pre-approval guarantee final loan approval?
No. Pre-approval is conditional on the property appraising, no material change in your finances, and satisfactory underwriting of the specific home. Condos need homeowners association (HOA) review; unique properties may need exceptions. Final approval comes after you are under contract, appraisal returns, and underwriting clears conditions - typically 21 to 45 days before closing.
Rate lock vs pre-approval expiration: Which matters first?
Pre-approval expiration affects whether a seller accepts your offer; rate lock expiration affects your locked interest rate. You can have valid pre-approval without a rate lock - most buyers lock after going under contract. If rates rise between pre-approval and lock, your qualified payment amount may shrink. Re-run DTI with the new rate before extending your offer price.
Related guides
- DTI & Mortgage Prequalification Guide (2026) Learn front-end and back-end debt-to-income (DTI) ratio limits for mortgage prequalification. Free DTI calculator with the 28/36 rule. CFPB-sourced guide.
- House Affordability by Salary - $80k to $150k (2026) See how much house you can afford on $80k, $120k, or $150k salary in 2026. State examples using the 28/36 debt-to-income (DTI) ratio rule. Free.
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