What Is Pre-Approval?
A pre-approval is a lender's conditional statement that it is willing to lend a specific amount, based on a review of your credit, income, assets and documents. It is stronger than a pre-qualification and often expected with an offer, but it is not a loan commitment.
Pre-Approval in plain English
A pre-approval is a letter from a lender saying it is willing to lend you up to a certain amount, after checking your credit and reviewing documents such as pay stubs, tax returns and bank statements.
Sellers usually want to see one with an offer. It is conditional: the home must appraise, your finances must not change, and underwriting must clear every condition.
Worked example
Front-end and back-end DTI
Illustrative example - round numbers, not current market data. Calculated with Reaixo's calculator engines.
Assumptions
- Gross monthly income
- $7,000
- New loan
- $280,000 at 6.75%, 30 years
- Property tax and homeowners insurance
- $350 and $125 a month
- Car payment
- $400 a month
- Student loan
- $250 a month
- Credit card minimums
- $75 a month
| Step | Calculation | Result |
|---|---|---|
| 1. Principal and interest | $280,000 at 6.75% over 360 months | $1,816.07 |
| 2. Housing payment (PITI) | $1,816.07 + $350 + $125 | $2,291.07 |
| 3. Front-end DTI | $2,291.07 ÷ $7,000 × 100 | 32.7% |
| 4. All monthly debts | $2,291.07 + $725 | $3,016.07 |
| 5. Back-end DTI | $3,016.07 ÷ $7,000 × 100 | 43.1% |
Back-end DTI: 43.1%. About 43% of gross income would go to debt payments. That is above the 36% Fannie Mae uses as its base limit for manually underwritten loans, though automated underwriting can approve up to 50% with strong compensating factors.
What this calculation leaves out
- Lenders use gross (pre-tax) income and the minimum required payment on each debt, not what you choose to pay.
- Utilities, groceries and childcare are not in DTI - a loan you qualify for can still strain your budget.
Try it: Pre-Approval with your own numbers
Interactive and illustrative: change any value and the results update instantly in your browser. The figures come from the same engines as REAIXO's full calculators.
Debt-to-income: the ratio lenders check
Lenders compare your monthly debt payments, including the new housing payment, with your gross monthly income.
- Back-end DTI (all debts)
- 43.1%
- Above 36%, within 45%
- Front-end DTI (housing only)
- 32.7%
- Room under 45%
- $134
- More monthly debt before 45%
- Base limit (0%-36%)
- Needs compensating factors (36%-45%) - you are here
- Automated approval only (45%-50%)
- Over the maximum (50%+)
- 36%: Manual underwriting base limit
- 45%: Manual, with strong credit and reserves
- 50%: Automated underwriting maximum
Show the numbers as a table
| Item | Monthly | Share of income |
|---|---|---|
| Housing payment | $2,291 | 32.7% |
| Other debts | $725 | 10.4% |
| Total debts | $3,016 | 43.1% |
| Gross income | $7,000 | 100.0% |
Formula
Back-end DTI = (Housing payment + Other monthly debts) ÷ Gross monthly income × 100Front-end DTI = Housing payment ÷ Gross monthly income × 100Assumptions
- Limits are Fannie Mae Selling Guide B3-6-02 reference points; FHA, VA and other lenders differ.
- Use minimum required payments; living expenses such as utilities are not debts.
The home-buying timeline, step by step
A typical financed U.S. purchase. Open a step to see what happens, the money involved and the usual timing. Your contract sets the real deadlines.
A lender reviews your credit, income and assets and states how much it is prepared to lend.
Timing: Before you search; letters are often valid for about 60 to 90 days.
Terms: pre approval, dti, credit score
You compare homes against your budget, including taxes, insurance and HOA dues - not just the price.
Timing: As long as it takes.
Terms: piti, comparable sales
You propose a price, contingencies, deadlines and any seller concessions; the seller accepts, counters or rejects.
Timing: Responses usually come within a day or two.
Terms: counteroffer, contingency, seller concession
Both sides sign the purchase contract, which sets every deadline that follows.
Timing: Day 0 of the contract.
Terms: under contract, contingency
You pay the good-faith deposit to the neutral holder named in the contract.
Money: Often about 1% to 3% of the price, by local custom.
Timing: Usually within a few business days of signing.
Terms: earnest money, escrow
A home inspector checks the condition; you can negotiate repairs or credits, or cancel within the inspection contingency.
Money: Inspection fees are paid up front.
Timing: Commonly 7 to 14 days after signing.
The lender's appraiser estimates value. A low appraisal can create a gap you must cover or renegotiate.
Money: The appraisal fee is often paid at application.
Timing: Commonly 2 to 3 weeks after signing.
Terms: appraisal, appraisal gap, appraisal contingency
The lender verifies everything and issues conditions, then "clear to close". Avoid new debt or large unexplained deposits.
Timing: Runs in parallel with the steps above.
Terms: underwriting, clear to close, rate lock
You confirm the home is in the agreed condition and any repairs are done.
Timing: Usually within a day or two of closing.
Terms: final walkthrough
You sign the loan and transfer documents and pay cash to close; you receive the keys. The Closing Disclosure arrives at least three business days before.
Money: Cash to close is due, usually by wire.
Timing: Commonly 30 to 45 days after signing for a financed purchase.
Terms: closing, cash to close, closing disclosure
Timing ranges are common practice, not rules. Cash purchases can close in one to two weeks.
Why it matters
The pre-approved amount is mostly a debt-to-income calculation at an assumed rate. It is a ceiling set by the lender's limits, not a recommendation of what you should spend.
What it means for you
What buyers should know
Get pre-approved before touring seriously, and refresh it if your search runs long.
What sellers should know
A pre-approval from a lender that verified income and assets is stronger than one based on stated information.
Common mistakes
- Treating the pre-approval amount as your budget.
- Taking on new debt or changing jobs before closing.
- Letting the pre-approval expire during a long search.
Pre-Qualification vs. Pre-Approval
An informal, non-binding estimate based on self-reported financial information — a quick first step, not verified.
A lender's conditional commitment to lend a specific amount, based on verified credit, income, and financial documents — carries far more weight with sellers.
Full comparison: Prequalification vs Preapproval, with a worked example →
Compare and common questions
Pre-Approval: frequently asked questions
What do I need for a mortgage pre-approval?
Typically proof of income, recent bank statements, identification and permission for a credit check. Self-employed borrowers usually need tax returns too.
Does a pre-approval hurt my credit?
A pre-approval usually includes a hard credit inquiry, which can lower a score slightly. Ask the lender whether it uses a hard or soft check.
Should I get pre-approved by more than one lender?
Yes, if you want to compare offers. Ask each for a Loan Estimate for the same loan so you can compare costs.
Related Terms
Where it fits
- Buying a home, Preapproval: before this, Pre-Qualification; next, Loan Estimate.
More Financing Terms
Recommended next step
See what each letter means and what sellers look for.
Prequalification vs preapproval →Sources and review
- What's the difference between a prequalification letter and a preapproval letter?, Consumer Financial Protection Bureau. Supports: Lenders use the terms prequalification and preapproval differently; neither is a guaranteed loan offer.
Where this applies: United States. Lender practice; the term is not defined by federal law.
Last reviewed: · Updated:
Examples use illustrative figures; rules of thumb are labelled as such. Rates, limits and program rules change - confirm current figures with your lender or a qualified professional.
This definition is provided for general educational purposes and is not financial, legal, tax, or real estate advice. Verify important decisions with appropriately qualified professionals.
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