Simple, fast, and straightforward.

If you're applying for a mortgage and have large deposits on your bank statements, the underwriter will likely ask for documentation.

This is one of the most common causes of last-minute loan delays — but it’s usually easy to resolve when handled early.

Here’s what you need to know.

A large deposit is typically defined as:

• Any single deposit that exceeds 50% of your gross monthly income
  or
• Any deposit that appears unusually large compared to your normal account activity

Even if the money is legitimate, it must be sourced and documented.

Mortgage guidelines require lenders to verify that funds are not:

• Borrowed money that must be repaid
• Undisclosed loans
• Temporary transfers
• Ineligible income sources

Mortgage lenders must verify that:

• Your down payment funds are legitimate
• You are not taking on undisclosed debt
• Funds are stable and not borrowed

If a large deposit appears without explanation, underwriting cannot simply ignore it.

The deposit must either be documented or excluded from qualifying assets.

Most large deposits are perfectly fine when documented.

Examples include:

• Sale of a vehicle
• Sale of personal property
• Tax refund
• Payroll bonus
• Gift funds from family
• Transfer from another account you own
• Business distribution (with documentation)

The key is having a clear paper trail.

Documentation depends on the source of the deposit.

Examples:

Sale of Vehicle
• Bill of sale
• Copy of buyer’s check
• Proof of deposit

Transfer Between Accounts
• Statements from both accounts
• Clear transfer trail

Bonus Income
• Paystub showing bonus
• Employer verification

Gift Funds
• Signed gift letter
• Donor’s bank statement
• Proof of transfer

When documentation is provided early, it prevents delays later.

Underwriters typically review:

• The most recent 2 months of bank statements
• All accounts used for down payment or reserves
• Any account showing funds used to close

If unexplained deposits are found, a condition will be issued.

If documentation cannot be provided, those funds may not be usable.

If you want to know what you actually qualify for — based on a real review, not a guess:

👉 See What You Qualify For

The best way to avoid problems:

1. Review your bank statements before applying.
2. Identify any large deposits.
3. Gather documentation immediately.
4. Inform your lender upfront.

At 210 Mortgage, we review assets during pre-approval to prevent closing-week surprises.

In competitive markets like San Antonio, clean and fully documented pre-approvals strengthen

offers.                                                    

Avoiding underwriting surprises can make the difference between:

• Smooth closing
• Contract renegotiation
• Missed closing dates

Preparation matters.                                                                                                    

If your buyer recently:

• Sold a vehicle
• Received a family gift
• Transferred funds between accounts
• Received a bonus

It’s best to flag it early.

Most large deposit issues are preventable.

You may also find these helpful:

• Pre-Approval Checklist
• Gift Funds Documentation Guide
• Cash to Close Breakdown
• What Delays Mortgage Approval
• VA Loan Checklist

If you’d like your assets reviewed before writing an offer, I’m happy to help.

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