Why Can Unexpected Issues Come Up During the Mortgage Process? What to Know Before Closing

Mortgage Insights · June 2026

When preparing to buy a home, many buyers assume that once they receive a pre-approval, most of the financing work is behind them. In reality, maintaining financial stability from the time you begin the mortgage process through closing is just as important.

Mortgage underwriting does not simply look at your income and credit at one point in time. Before the loan is finalized and funded, the lender may verify that your income, assets, credit, and debt obligations continue to meet the requirements of the loan.

As a result, even a seemingly small financial change during the process can sometimes lead to additional documentation, new conditions, or delays.

Here are several areas to pay particular attention to before and during the mortgage process.

1. Avoid Taking on New Debt During the Mortgage Process

One of the most common issues during the mortgage process is taking on new debt, such as financing or leasing a vehicle or opening a new credit card.

A new auto loan or lease adds a monthly obligation, which can directly affect your debt-to-income ratio (DTI). New credit inquiries or recently opened accounts may also be reviewed as the loan moves toward final approval.

The same applies to financing furniture, appliances, or other large purchases. Even if you qualified comfortably when the loan was initially approved, adding a new monthly obligation shortly before closing can change your qualification.

Whenever possible, it is best to minimize new credit activity and additional debt until after the mortgage has closed.

2. Be Prepared to Document the Source of Large Deposits

Another common issue during the mortgage process involves large deposits appearing on bank statements.

Examples may include gift funds from family members, cash deposits, international transfers, or proceeds from selling investments. Depending on the loan program and circumstances, the lender may need to verify where the funds came from.

This does not necessarily mean there is a problem with the money. It is often simply part of the documentation required under the applicable mortgage guidelines.

Cash deposits can be particularly difficult because the source may not be easy to document. In some situations, funds that cannot be properly sourced may not be eligible to be used toward the transaction.

When adequate documentation is available, many transfers and deposits can be handled without issue. The important factor is whether the source and movement of the funds can be clearly documented.

If you are planning a large transfer or deposit, it is a good idea to discuss it with your Loan Officer before moving the funds.

3. A Job Change or Change in Income Structure Can Affect the Loan

A job change is another area borrowers may overlook during the mortgage process.

Even when a new position comes with a higher salary, changing jobs shortly before closing may require the lender to verify the new employment and determine whether the income can be used for qualification.

Changes involving commission, bonus, overtime, or self-employment income may require additional documentation or review.

This does not mean that every job change will create a problem. However, because employment and qualifying income may be verified before the loan is finalized, it is important to discuss any planned employment or income changes with your Loan Officer before making the change.

When practical, postponing a significant employment or income change until after closing may help avoid unnecessary complications.

4. Small Financial Changes Can Matter More Than You Think

During the mortgage process, even financial decisions that seem relatively minor can sometimes affect loan qualification.

Using Buy Now, Pay Later services such as Affirm or Klarna, opening a new installment account, or significantly increasing credit card balances may seem like ordinary spending decisions. However, depending on the circumstances, they can create new monthly obligations or affect the borrower’s overall credit profile.

Mortgage qualification can continue to be reviewed until the loan is finalized. For that reason, if you are considering a financial decision that could affect your credit, debt, assets, employment, or income, it is best to check with your Loan Officer first.

Something that may be simple to address early in the process can become more complicated if it is discovered immediately before closing.

◆ The Best Preparation for a Smooth Closing

Buying a home does not end when the contract is signed. Maintaining a stable financial profile through closing is also an important part of the process.

Not every financial change will create a problem. What matters is understanding whether a change could affect your qualification and whether the lender can properly document and review it.

Knowing what to expect throughout the mortgage process can help reduce unnecessary surprises and make the path to closing more manageable.

Rather than feeling that you cannot make any financial moves at all, the key is communication. Before making a significant change involving your credit, debt, assets, employment, or income, speak with your Loan Officer so you can understand how it may affect your loan and plan accordingly.