The short answer: A gift is usually the cleanest way to help. In 2026 you can give each child up to $19,000 ($38,000 from a married couple) without filing a gift tax return, and on a one-unit primary home the entire down payment can be a documented gift. Co-signing or co-borrowing helps your child qualify on income, but the loan shows up on your credit and counts against your own borrowing for years. Decide what you're really solving for: cash for the down payment, or income to qualify.
What problem are you actually solving?
Most of the parents I talk with in the San Gabriel Valley want to help, but they're solving one of two different problems:
- Your child has the income but not the down payment. That's a cash problem. A gift solves it.
- Your child has savings but can't qualify on income alone. That's an income problem. Co-borrowing, or co-signing in some programs, solves it.
Mixing these up is how families end up with a parent on a 30-year loan they never needed to be on.
Gift, co-sign or co-borrow: what each one means for you
| Gift | Co-sign | Co-borrow | |
|---|---|---|---|
| You're on the loan | No | Yes | Yes |
| You're on title (an owner) | No | No No ownership interest | Often, not always |
| Counts in your debt ratio | No | Yes Unless your child pays it for 12 months | Yes Unless your child pays it for 12 months |
| Helps your child qualify on income | No | Yes | Yes |
| Paperwork for you | Gift letter; Form 709 if over $19,000 | Application, credit check | Application, credit check |
How does a gift work?
Fannie Mae allows gifts from relatives, a domestic partner, a fiancé or fiancée, or someone with a long-standing family-like relationship. On a one-unit primary residence, your child doesn't have to put in any of their own money; the whole down payment can be a gift (Fannie Mae B3-4.3-04). Two- to four-unit homes and second homes require 5% from the borrower.
The lender will want:
- A gift letter with the amount, a statement that no repayment is expected, and your name, address, phone number and relationship.
- A paper trail: your check and your child's deposit slip, a wire to your child, or a wire straight to escrow. If the money goes directly to closing, it must be a wire, certified check or cashier's check.
Send the money early and in one piece. A gift that sits in your child's account for a couple of months, documented once, is far easier than three transfers a week before closing.
Will I owe gift tax?
Almost certainly not. The 2026 annual exclusion is $19,000 per recipient, or $38,000 if you and your spouse give together (IRS gift tax FAQ). Give more than that to one person in a year and you generally file Form 709 by April 15 of the following year (IRS Form 709 instructions). Filing doesn't mean paying: the excess counts against your lifetime exemption, which is $15 million per person in 2026 (IRS). Your CPA should file it, but for most families no tax is due.
A gift to your child and their spouse can count as two recipients, which doubles the annual amount. Ask your CPA how to structure it.
What changes if I co-sign or co-borrow?
Both put you on the note, which means you're fully responsible if payments stop. The difference is ownership:
- Co-signers sign the note but have no ownership interest in the home.
- Non-occupant co-borrowers share the loan and may or may not be on title (Fannie Mae B2-2-04).
The cost to you shows up later. When you go to refinance or buy your next home, that mortgage payment counts against your debt-to-income ratio, unless your child has made every payment from their own account for the most recent 12 months with no late payments, and you can prove it with canceled checks or bank statements (Fannie Mae B3-6-05). Even then, it still counts toward your number of financed properties.
If you co-sign, have your child pay from an account in their own name, starting with the first payment. That one habit gives you your borrowing power back after a year.
What about a gift of equity?
If you're selling a home to your child, you can credit part of your equity toward their down payment and closing costs. It's documented with a gift letter and shows on the settlement statement (Fannie Mae B3-4.3-05). For the family home itself, property tax is a separate question: Prop 19's parent-child rules apply, and I covered them in Inheriting Your Parents' California Home.
Derek\'s take
I've watched parents help three kids into three homes and stay financially comfortable, and I've watched one co-signature block a parent's own refinance for years. The difference was a 15-minute conversation before anyone signed. Call me with both your situation and your child's, and I'll show you which route gets them the house with the least cost to you.
Frequently asked questions
Can my whole down payment be a gift?
On a one-unit primary residence with a conventional loan, yes. Two- to four-unit homes and second homes require 5% of your own funds.
Do I need to file a gift tax return?
Only if you give one person more than $19,000 in 2026. Filing usually means no tax is owed; the amount counts against your $15 million lifetime exemption.
Does co-signing hurt my credit?
The loan appears on your credit report and counts in your debt ratio. Late payments by your child would hurt your score too.
Can I get off the loan later?
Usually only when your child refinances into their own name, which they can do once their income qualifies on its own.
Sources
- Fannie Mae Selling Guide B3-4.3-04: Personal gifts
- Fannie Mae Selling Guide B2-2-04: Co-signers and non-occupant borrowers
- Fannie Mae Selling Guide B3-6-05: Debts paid by others
- Fannie Mae Selling Guide B3-4.3-05: Gifts of equity
- IRS: Frequently asked questions on gift taxes
- IRS: What's new, estate and gift tax
- IRS: Instructions for Form 709
This article is general education, not a commitment to lend, an offer of credit, or tax, legal or investment advice. All loans are subject to credit approval, income and asset verification, and property appraisal. Programs, rates, terms and limits change without notice; figures are current as of the publish date. Derek Shao, NMLS #242117, CA DRE #01358261. Financial Dynamics, Inc. DBA Emory Financial, Company NMLS #393986. Equal Housing Opportunity.
