What Should I Never Tell My Mortgage Lender?
By Mike Baker · The Rate Shop · NMLS #259076
Mortgage guidance for homebuyers in Kansas and Missouri
Do not hide information that affects your mortgage application. Tell your loan officer about debts, credit problems, employment changes, side businesses, and where your down payment will come from. You do have privacy rights, but withholding required financial information can put your approval at risk.
When someone asks me, “What should I never tell my mortgage lender?” my immediate answer is:
“Tell me EVERYTHING!”
What I mean is: give me the full picture of your financial situation and homebuying plans. You do not need to decide on your own which details matter. That is part of the conversation we should have together.
My job is to help you understand your options, prepare a thorough application, and work toward your piece of the American Dream. An uncomfortable conversation today can give us time to address something that would be much harder to handle two days before closing.
Why I want the full picture before preapproval
Borrowers sometimes hesitate to talk about monthly debts or missed payments. They may worry that bringing up a problem will cause their loan officer to reject them.
I want to know about those issues so I can help you plan. A strong preapproval depends on accurate information, not just the most encouraging version of the story.
A credit report is part of that review, but it does not necessarily show every obligation. Tell me about debts even if you cannot see them on a credit-monitoring app. Underwriting may need additional documentation for obligations outside the report. Fannie Mae’s liability requirements specifically address that review.
If you are still getting oriented, my mortgage roadmap explains the steps from the first conversation through closing.
Talk to your loan officer before taking on new debt
Buying a car, opening a credit card, or financing furniture is not automatically a deal breaker. The effect depends on your income, existing debts, loan program, credit profile, and cash available.
Consider two hypothetical buyers: one already has a 50% debt-to-income ratio, while the other is at 25%. A new payment could put the first buyer over the limit for their particular approval. The second may have more room, but we still need to review and document the change.
For instance, a client recently told me they needed to replace a car sooner than expected. We talked through the proposed payment and how it would fit with their preapproval before they committed to the purchase.
Also mention buy-now-pay-later balances, including arrangements through providers such as Klarna or Affirm. Whether and how a payment counts depends on the obligation and the program’s rules; it is not something to omit simply because it is absent from your credit report. Monthly debt rules can distinguish between different types and durations of debt.
Lenders may check for new credit or liabilities before closing. If additional debt is discovered, the loan may need another review. The process is much easier when we learn about it early.
For a practical illustration of how debt payments change buying power, see how much income you may need to buy a $400,000 home.
Discuss job changes and side businesses early
A new job can change the documentation we need
If you are considering a job change before closing, contact your loan officer before making the move when possible. We need to understand the start date, pay structure, and documentation available.
Some situations allow qualifying with an employment offer or contract; others require a paystub or additional verification. The timing and conditions depend on the program and lender. Fannie Mae’s employment-offer guidelines, for example, provide different paths with specific eligibility and documentation requirements.
Moving from salary to commission can also change how usable income is calculated. If you leave a job whose income is needed to qualify, the existing approval may no longer work. Tell us immediately so we can evaluate the options and timing.
In one of my clients’ situations, a co-borrower planned to quit a job before closing. Because we learned about it with enough time, we were able to add a qualifying co-signer and keep the closing on schedule. That solution will not fit every loan, but the early conversation gave us a chance to explore it.
A side business may matter even when you have a W-2 job
A borrower may tell me, “I’m not using my side-gig income to qualify, so I didn’t think I needed to mention it.” But a business can have expenses or losses that affect the review.
FHA requires negative income to be subtracted from gross monthly income unless an exception applies. A business loss can therefore reduce qualifying income rather than simply being ignored. The lender must analyze the applicable documents and adjustments. See HUD Handbook 4000.1, General Liabilities and Debts.
Do not assume all programs handle a separate side business identically. Fannie Mae allows a specific exception to its personal-income analysis when qualifying solely with non-self-employment income and the business is a secondary, separate income or loss source. Give your loan officer the facts so the right rules can be applied.
Explain where your down-payment money will come from
Having money in an account and documenting acceptable funds for a mortgage are two different steps. Before depositing a large amount, borrowing money, accepting a gift, or transferring funds between accounts, ask what records we will need.
Large deposits and transfers
Under Fannie Mae’s rules, a single deposit exceeding 50% of the loan’s total monthly qualifying income is a large deposit. For example, with $10,000 in monthly qualifying income, a $6,000 deposit exceeds the $5,000 threshold.
For a purchase, funds from that deposit needed for closing or reserves must have an acceptable documented source. An unsourced amount may need to be excluded. Readily identifiable payroll deposits or transfers between verified accounts may not require another explanation. These are Fannie Mae rules; other programs use different requirements.
Cash can be particularly difficult to document. Do not assume cash deposited into your bank account automatically becomes usable down-payment money. Likewise, moving funds through several accounts can create more records to gather. My practical advice is to coordinate significant transfers with your loan officer and keep the paper trail clear through closing.
Gifts, home equity, and retirement funds
A gift from an eligible donor can be an option, but discuss it before the transfer. The documentation may include a gift letter confirming no repayment is expected and evidence of the transfer. A family loan should not be described as a gift. See Fannie Mae’s gift-fund requirements.
Borrowing requires a different review. Fannie Mae does not permit personal unsecured loans as the source of down-payment, closing-cost, or reserve funds.
Eligible loans secured by an asset can be treated differently. A home-equity loan on your current home may provide funds, with its payment included in the qualification review. A loan against an eligible 401(k) account may also be acceptable, subject to plan and mortgage requirements. Payments on loans secured by financial assets receive different treatment under Fannie Mae’s secured-borrowing rules. Neither option is automatically the right financial choice for you.
One preapproved client planned to use retirement savings but later learned that the vested funds available were insufficient. We changed the plan, and a parent provided gift funds. Checking the accessible amount, not just the statement balance, gave us a more workable path.
Other details worth bringing to the first conversation
Federal debt problems. Mention delinquent federal debt, including any known federal student-loan default. Government-loan screening can include CAIVRS, a federal debt database, in addition to a credit report. Ask about potential issues early; screening timing and eligibility rules vary.
The property you want. Tell us if you are considering a condo, duplex, triplex, or four-unit property, and how you intend to use it. Property eligibility, project review, financing terms, and documentation can differ from a standard single-family purchase.
People helping you make decisions. If a parent or another trusted person is helping you evaluate homes and payments, I welcome including them early—with your permission. They can ask questions and hear the financing explanation directly.
What personal information do you not have to disclose?
Being forthcoming about your finances does not erase your privacy rights.
A lender cannot ask about your birth-control practices or plans to have children. You also do not have to disclose alimony, child-support, or separate-maintenance income if you do not want it considered for qualification. That differs from support payments you are obligated to make, which can affect your liabilities.
If a question feels unrelated or overly personal, ask why it is needed and how it relates to the application.
What if you already left something out?
Speak up early and often. Contact your loan officer as soon as you realize information is missing, inaccurate, or has changed. Explain what happened and ask what documents are needed to correct the file.
I am not trying to “kill your deal.” I want to work with you to find a workable path. That may involve more documentation, a different financing approach, or time to prepare. Not every obstacle can be resolved before a particular closing date, but waiting gives us fewer options.
Quick answers about talking to your mortgage lender
Will telling my lender about a problem automatically get me denied?
No. The underlying facts and loan requirements determine what is possible. Early disclosure gives your loan officer time to evaluate the situation; it does not guarantee approval, but it supports a more accurate plan.
Can I buy a car after mortgage preapproval?
Possibly. Have your loan officer review the proposed payment, credit impact, and effect on your available cash before committing. A manageable purchase for one borrower may jeopardize another borrower’s approval.
Do I need to mention debt that is not on my credit report?
Yes. Tell your loan officer about the obligation so its terms and treatment can be reviewed. A missing credit-report entry does not establish that a debt is irrelevant to your application.
Should I wait until my finances are perfect before calling?
No. A conversation can help you understand what is possible now and what may need work. You do not have to solve every mortgage question before speaking with a professional.
Your loan officer should be on your side
If you read this and think, “My situation is too unusual—I will never be able to buy a home,” please have a conversation before assuming the worst.
Friends and family can be a valuable source of support. But mortgage guidelines are nuanced, and what worked for someone else may not apply to your income, property, or loan program.
I help homebuyers across Kansas and Missouri work through those questions. Bring me the details, the worries, and the plans you are not sure about. We can discuss your options and the next steps worth taking.
Conversations are free. Schedule a quick call with Mike Baker, or speak with another loan officer you trust. You do not know what you do not know—and it is okay to ask.
Mike Baker is a Mortgage Loan Originator with The Rate Shop, NMLS #259076. This article provides general education, not a loan approval or commitment to lend. Eligibility and documentation depend on the borrower, property, loan program, and lender. Examples describe individual experiences, not guaranteed outcomes.
