Pre-approval feels like the finish line, but underwriters re-verify every piece of your financial profile before funding. A conditional approval or clear-to-close can still be withdrawn if material facts change between application and closing. Here are the five changes that derail closings most often, and how to stay on track.
Opening new credit accounts
Applying for a new credit card, auto loan, or retail financing triggers a hard inquiry and changes your debt-to-income ratio. Even if you don't carry a balance, revolving accounts add monthly minimum payments to the underwriter's calculation. A buyer financing furniture three weeks before closing can push DTI from 43 percent to 46 percent, and many programs cap qualification at 43 or 45. The Alliance take: freeze all new credit activity the day you submit a mortgage application. Wait until after you receive loan proceeds.
Job or income changes
Lenders verify employment within seventy-two hours of closing. If you start a new job, switch from W-2 to 1099, go part-time, or accept a role with commission or bonus instead of base salary, your income profile changes. Underwriters require two years of history for variable income. Even a promotion that replaces hourly pay with salary-plus-commission can reset the qualification clock. Hold off on career moves until the loan funds, or disclose any offer immediately so the lender can re-underwrite.
Undisclosed liabilities and co-signed debt
Child support, alimony, co-signed student loans, and informal payment plans all count against DTI if the underwriter discovers them. Liabilities you're not currently paying—like a deferred student loan about to enter repayment—must be disclosed. Co-signing a loan for a family member obligates you for the full payment in the lender's eyes, even if someone else makes it. Underwriters pull credit again at closing; any new tradeline or obligation not on the original application requires explanation and may void approval.
Appraisal gaps and contract amendments
If the appraised value comes in below the purchase price, lenders will only fund loan-to-value ratios based on the lower figure. A contract price of three hundred twenty thousand dollars with an appraisal of three hundred thousand dollars means a 95-percent LTV loan covers only two hundred eighty-five thousand dollars, not three hundred four thousand dollars. Buyers must cover the twenty thousand dollar gap plus their down payment in cash. Contract amendments that increase price, add seller concessions, or change occupancy also require underwriter review and can reset timelines. These figures are illustrative; rates and products are subject to change and this is not a commitment to lend.
Large or unexplained deposits
Any deposit over 25 percent of your monthly income—or sometimes fifty percent, depending on the investor—requires a paper trail. Underwriters need to confirm deposits aren't borrowed funds. Cash gifts from family, proceeds from selling personal property, or transferring money between your own accounts all need documentation. A ten thousand dollar check from a relative looks like undisclosed debt without a signed gift letter and proof the donor had the funds.
Protect your approval through closing
Don't alter your financial profile after applying. Disclose changes immediately, keep using the same accounts, and ask before making any large transaction. If you have questions about an upcoming change, start a conversation before acting.