Making major financial moves during underwriting can derail your home purchase. Learn why lenders double-check your credit and employment right before you close.

No, you should not buy a car, change jobs, or open a credit card before closing your mortgage. Doing any of these things can delay your closing or lead to an outright loan denial.
While it is technically possible to survive these changes if your debt-to-income ratio and credit scores are exceptionally strong, it depends entirely on your specific loan program, the underwriter's final review, and your ability to document the changes instantly. It is always safest to wait until the keys are in your hand and the deed is recorded. This guide is part of our mortgage questions resource hub where we break down the mechanics of home buying.
How this affects your mortgage
Every mortgage approval relies on a snapshot of your financial life at the time of application. When you buy a car or open a credit card, you introduce new monthly payments that inflate your debt-to-income ratio. Lenders typically pull a soft credit inquiry or a full new report just days before closing to verify no new liabilities have appeared. If your debt-to-income ratio crosses the program's maximum limit, your loan cannot fund.
If you are looking at different types of home loans, you will find that some guidelines are more unforgiving than others. For example, if you choose one of our adjustable rate mortgages, the initial qualifying rate is calculated using specific underwriting rules that leave little room for sudden credit additions. To see how a new car payment or credit card balance would shrink your purchasing power, you can estimate your maximum affordable home price and adjust the monthly debt input to simulate the impact on your cash flow.
Local housing realities in Spanaway
In the local housing market in Spanaway, we see a lot of military families and buyers looking for suburban properties with space. Property taxes and utility costs throughout greater Pierce County can vary significantly depending on whether you are on a public sewer system or a septic tank. These fixed housing costs are factored directly into your qualifying ratios, meaning a surprise $400 car payment can easily push you over the edge when buying a home here.
Let us say you are looking at a classic split-level home off Pacific Avenue. In a balanced, normalizing market where sellers are willing to negotiate on repairs or offer rate buydowns, your loan structure is the main tool keeping your payment comfortable. If you suddenly change jobs right before closing, even within the same industry, the lender must halt the process to obtain a new written verification of employment and verify your new pay structure, which can kill your negotiation leverage with the seller.
What to avoid during underwriting
Underwriters are paid to look for risk. They do not just check your credit score once and walk away. They monitor your files until the moment the loan funds.
To keep your closing on track, follow these rules during the transaction:
- Do not finance any new purchases, including vehicles, furniture, or appliances for the new house.
- Do not apply for new credit cards or store financing, even if they promise zero percent interest.
- Do not change from a salaried position to a commission-only or 1099 independent contractor role.
- Do not make large, undocumented cash deposits into your bank accounts that cannot be sourced.
- Do not co-sign for anyone else's car loan, student loan, or credit card during the escrow period.
Why career changes are risky
A job change right before closing is not always an automatic denial, but it creates massive administrative friction. If you stay in the exact same line of work with a guaranteed salary, the underwriter will generally require your first new paystub or a signed employment contract to verify your income. However, if you switch from a steady salary to a job that relies on bonuses, commissions, or hourly overtime, underwriters cannot use that variable income until you have a two-year track record at that job.
According to federal mortgage reporting, which includes the publicly available 2025 HMDA data on mortgage lending [6], lenders must strictly document income stability to comply with federal ability-to-repay rules. If you change jobs to an entirely different field, the lender may view your income as unstable. This forces them to reset your underwriting process, which can delay your close date past your contract's expiration and put your earnest money deposit at risk.
Questions I get about this
Can I buy furniture on credit if the store offers a 'no payments for one year' promotion?
No, you should not open that account. Even if you do not have to make a payment for twelve months, the underwriter must still calculate a monthly payment based on the total balance or a percentage of the credit limit. This new payment is added directly to your debt-to-income ratio and can disqualify you from your loan right before closing.
What if my current car lease ends during escrow and I must get a new vehicle?
If you must replace a vehicle because a lease is expiring or your car broke down, talk to your loan officer first. We can calculate the maximum payment you can afford without hurting your mortgage approval, and we can help you structure the new auto lease or loan to satisfy the underwriter's requirements before you sign anything at the dealership.
Dom's take
I remember a call on a Tuesday afternoon from a buyer who was under contract on a nice home near Spanaway Lake. The sellers had agreed to a temporary rate buydown, the inspection was done, and we had structured a clean adjustable rate loan to keep the payments manageable. Then the buyer called to tell me he just leased a new truck because the dealership offered a great end-of-month deal. His monthly debt payment jumped by $650, which immediately pushed his debt-to-income ratio past the underwriting limit and forced us to restructure the entire mortgage on the fly.
This is the market I like coaching people through. Nobody is panicking, we have time to structure the loan properly, and the monthly payment is something we build on purpose instead of accept. But building that payment requires keeping your financial profile completely frozen during the escrow period. A single impulsive purchase or unannounced job change can tear down days of careful planning, so please run every financial decision by your loan team first.
How I'd handle it
If this were my own money, I would treat my finances as if they were locked in a vault until the county records the deed. I would postpone any job transitions, use my existing vehicle, and wait to buy any new household items until after I have the keys. If an emergency forces a financial change, I would call my loan officer immediately to run the numbers before making any commitments.
Talk it through with me
If you are ready to explore your financing options or want to check your qualifying numbers, reach out to me directly. We can run a five-minute pre-approval to see where you stand, plan your debt-to-income strategy, and target our average close time of 15 days or less.
Where to go next
Programs mentioned
- Adjustable Rate Mortgages
A lower fixed period, deliberately chosen.
Keep reading
- Can You Renegotiate After a Home Inspection or Low Appraisal?
Discover how a normalizing market puts the power back in your hands to renegotiate purchase prices, repairs, and loan structures after an inspection or a low appraisal.
- What Happens If the Seller Does Not Move Out on Time?
Discover what happens when a seller misses their move-out deadline, how it impacts your VA loan or occupancy rules, and how to protect yourself in a normalizing market.
- Can a Seller Pay My Closing Costs or Buy Down My Rate?
Learn how seller concessions work, how they impact your monthly payment, and the specific rules for investment properties in Clark County.
- Can I Borrow My Down Payment or Use a Gift From Parents?
Using a gift from parents for your down payment is completely fine, but borrowing the money is a different story. Here is how the rules change for conventional, FHA, and Jumbo loans.
