How long does underwriting take?

Often one to two weeks, though it varies with loan complexity and how quickly you supply documents. Responding promptly to conditions is the single biggest factor in keeping it fast.

What debt-to-income ratio do I need to qualify?

Many conventional loans target a back-end DTI of 43% or less, but some programs allow higher ratios with compensating factors like strong cash reserves or an excellent credit score. Lower is always safer.

What happens if the appraisal comes in low?

You can renegotiate the price, pay the difference in cash, challenge the appraisal with new comparables, or, if your contract has an appraisal contingency, walk away. Your agent and lender can help you weigh the options.

Phase 5 of 8

Processing & Underwriting

The lender verifies everything and issues your clear-to-close.

Underwriting is where the lender confirms that you and the property meet all the requirements for the loan. A processor assembles your file and orders verifications and an appraisal; an underwriter then reviews your credit, income, assets, and the property to decide whether the loan can be approved. It's the most document-heavy phase, and your responsiveness has a direct effect on how fast it moves.

Many loans receive a conditional approval — an approval subject to a short list of remaining items. Clearing those conditions promptly leads to the coveted clear-to-close. The key to a smooth underwriting period is staying available, organized, and financially stable.

What underwriters look for

Underwriters evaluate the classic pillars of lending: capacity (can you repay, measured largely by your debt-to-income ratio), credit (your repayment history), capital (your down payment and reserves), and collateral (the property's value via appraisal). Your DTI is often the make-or-break number — most programs want your total monthly debts at or below 43% of gross income, though some allow more with compensating factors like strong reserves or a high credit score.

The appraisal and what happens if it's low

The lender orders an independent appraisal to confirm the home is worth what you're paying. If the appraisal comes in below the contract price, you have options: renegotiate with the seller, cover the gap in cash, dispute the appraisal with new comparable sales, or in some cases walk away if you have an appraisal contingency. Understanding this risk in advance keeps a low appraisal from derailing your purchase.

Responding to conditions

Conditional approval comes with a list of items the underwriter still needs — a letter explaining a deposit, an updated pay stub, proof a debt was paid, or an insurance binder. Treat these requests as urgent. Each day a condition sits unanswered can push back your closing. Keep your finances frozen during this period: no new credit, no large unexplained deposits, no job changes. Once conditions are satisfied, you receive your clear-to-close.

Your processing & underwriting checklist

Respond to every underwriter condition as fast as possible.
Confirm your debt-to-income ratio leaves room within program limits.
Avoid opening new credit or making large purchases.
Keep documentation ready for any large or unusual deposits.
Review the appraisal and discuss options if it comes in low.
Secure homeowners insurance and provide the binder to your lender.

Frequently asked questions

How long does underwriting take?: Often one to two weeks, though it varies with loan complexity and how quickly you supply documents. Responding promptly to conditions is the single biggest factor in keeping it fast.
What debt-to-income ratio do I need to qualify?: Many conventional loans target a back-end DTI of 43% or less, but some programs allow higher ratios with compensating factors like strong cash reserves or an excellent credit score. Lower is always safer.
What happens if the appraisal comes in low?: You can renegotiate the price, pay the difference in cash, challenge the appraisal with new comparables, or, if your contract has an appraisal contingency, walk away. Your agent and lender can help you weigh the options.