Buyers plan the amount and forget the provenance. Then underwriting asks where a deposit came from, and a transaction that felt finished develops a week of delay.
The rule behind all of it is short: money used to buy a house must be traceable and must be yours or properly gifted. This article walks the common sources Claremont buyers use, what documentation each requires, and the mistakes that turn available money into unusable money. General process information only. Program rules differ and change, so your lender governs your file.
The sourcing and seasoning idea
Two words carry most of the weight.
SOURCING means showing where a deposit came from. An underwriter reviewing your statements will flag meaningful deposits that are not payroll and ask for an explanation supported by paper.
SEASONING means money that has sat in your account long enough to be treated as established rather than as a recent arrival needing explanation. The required period varies by program.
Both exist for the same reason: to confirm you did not borrow the down payment. A hidden loan changes your obligations without appearing in the file, so lenders take the question seriously even when the truth is innocent.
Savings and ordinary accounts
The easiest case. Statements show the balance, payroll deposits explain the growth, and nothing needs a letter.
Two habits protect you. Do not shuffle money between accounts in the weeks before applying, because every transfer creates a deposit an underwriter must trace, and a simple move can generate three document requests. And send complete statements, all pages, not screenshots. The wider list is in the pre-approval documents guide.
Gift funds from family
Extremely common in Claremont, where parents and grandparents frequently help. Also the source most often mishandled.
A gift generally requires a signed gift letter stating the amount, the relationship, and explicitly that no repayment is expected. Lenders commonly also want evidence of the transfer, and sometimes evidence that the donor had the funds.
The word that matters is GIFT. If any repayment is expected, it is a loan, and a loan changes your qualifying picture. Signing a letter that says otherwise is not a shortcut, it is a false statement on a mortgage application.
Practical advice: have the donor wire directly to escrow, or transfer in one clean traceable movement well before closing. What creates problems is cash, structured deposits, or funds routed through three accounts on their way to you.
Also confirm the program allows gifts for your situation. Most do, some restrict how much of your own money must be involved, and rules differ for primary residences versus other occupancy types.
Proceeds from selling a home
The classic Claremont move-up. Documentation is the settlement statement from the sale plus evidence the funds landed in your account.
The complication is timing. If your sale closes after your purchase, the money does not exist yet when the lender needs to see it. That is a sequencing problem with known solutions, all of which need to be arranged in advance rather than discovered mid-escrow. The options are compared in the buying before you sell guide.
Retirement accounts
Two routes with different consequences.
A withdrawal is documented with statements and the distribution record. The tax consequences belong to your tax advisor, and they can be substantial.
A loan against a retirement plan, where permitted, is often treated more favorably than other borrowed money because it is secured by your own asset, though the repayment may count in your obligations. Program treatment varies.
Either way, take the money early enough to season and to document, and tell your loan officer before you do it rather than after.
Business funds
Self-employed buyers often hold cash in a business account, and moving it to a purchase is not automatic. Lenders typically want evidence that the withdrawal does not harm the business, sometimes supported by a letter from an accountant, and they want the ownership structure clear.
Start this conversation early. It is one of the more common sources of late-stage friction, and it interacts with how your income is calculated, covered in the self-employed qualifying guide.
Assistance programs and other sources
Down payment assistance is real, structured as grants or as second loans with varying terms, and eligibility is broader than most buyers assume. The landscape is described in the assistance programs guide. Assistance must be disclosed and coordinated with the first mortgage, because not every program pairs with every loan.
Proceeds from selling a vehicle or other asset can work with a bill of sale and evidence of deposit. Cash held outside a bank generally cannot be used at all until it has been deposited and seasoned, and even then it invites questions.
The one habit that prevents all of this
Tell your loan officer, at application, exactly where every dollar is coming from, including the awkward parts. An underwriter who learns about a gift in week one runs a clean process. An underwriter who discovers an unexplained deposit in week four restarts a review.
Buyers who do this well spend a single afternoon assembling statements and letters and then never think about it again. Buyers who improvise spend the entire escrow answering questions.
Start at the financing hub for the full sequence. Anthony Grynchal has been licensed in California since November 2009.
Frequently asked questions
Can my parents give me money for a down payment?
Yes, in most programs. A gift generally requires a signed letter confirming no repayment is expected, evidence of the transfer, and sometimes proof the donor held the funds. Money expected to be repaid is a loan, not a gift.
Why does the lender ask about deposits in my bank account?
Underwriting must confirm your funds are not borrowed. Deposits that are not payroll require a documented source, because an undisclosed loan would change your obligations without appearing in the file.
Can I use cash I have saved at home?
Generally not directly. Cash without a paper trail cannot be sourced, so it usually must be deposited and then seasoned in an account for the period your program requires, and it may still draw questions.
Can I use money from my retirement account?
Often yes, through either a withdrawal or, where the plan permits, a loan against the account. Both are documented differently and carry different tax and qualifying consequences, so speak with your lender and tax advisor first.

Written by
Anthony Grynchal
Anthony Grynchal is a California real estate professional with eXp Realty, licensed since November 2009 (California DRE# 01873626), and the Designated Local Expert™ for Claremont — where he has lived for more than 33 years.
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