Loans · Fannie Mae Selling GuideDown payment assistance second mortgages: how Fannie Mae treats a Community Second
Many down payment assistance programs lend the money as a second mortgage. Fannie Mae calls this a Community Seconds loan – subordinate financing originated under an affordable housing program – and buys the first mortgage that goes with it (Selling Guide B5-5.1). The second must come from an eligible provider: a federal agency, state, county or city, a housing finance agency, a 501(c)(3) nonprofit, a Federal Home Loan Bank affordable housing program, the borrower's employer, a lender for an employer-guaranteed program, or a federally recognized Indian tribe – never the property seller or another interested party, except in shared equity or sweat equity programs. It can pay all or part of the down payment (as long as it isn't funded through the first mortgage, such as by premium pricing), closing costs, renovations or a permanent rate buydown, or it can secure a subsidized sales price. The first mortgage must be fixed-rate or an ARM with an initial fixed period of five years or more, the deal must be a purchase or limited cash-out refinance of a one- to four-unit principal residence, and the combined loan-to-value can go up to 105%. On a one-unit home the buyer needs none of their own money; on two to four units above 80% LTV, 5% must come from the buyer first. The second's mortgage must be clearly subordinate, and the first lienholder must be able to foreclose free and clear of it. If repayment is deferred five years or more, its payment is left out of the debt-to-income ratio. When repayment is required, the second can't mature or balloon before the earlier of 15 years after the first's note date or the first's maturity, and it must be fixed-rate, no more than 2% above the first mortgage's initial rate.
The key rules (B5-5.1-02)
Who can lend it
Government, housing finance agency, 501(c)(3) nonprofit, FHLBank program, employer, tribe – not the seller.
What it can pay
Down payment, closing costs, renovations, a permanent buydown – or secure a subsidized price.
CLTV
Up to 105%, on a fixed-rate first or an ARM fixed for 5+ years.
Own funds
None on one unit; 5% on 2–4 units above 80% LTV.
Payment in DTI
Left out if repayment is deferred 5 years or more.
Rate and term
Fixed, at most 2% above the first's rate; no maturity before 15 years or the first's maturity.
What the TC can do
- Find out early which assistance program the buyer uses and ask how long its approval takes.
- Make sure the program's documents and the second mortgage reach the closing agent with the lender's package.
- Check that the title commitment shows the second behind the first.
Questions buyers ask
Can I use a down payment assistance second mortgage with a conventional loan?
Yes. Fannie Mae buys first mortgages with Community Seconds loans from eligible providers, with a combined loan-to-value up to 105% (Selling Guide B5-5.1-02).
Does the DPA second mortgage payment count in my DTI?
Not if repayment is deferred for five years or more; if the deferral is shorter, the future payment is counted.
Can the seller provide down payment assistance as a second mortgage?
No. The Community Seconds provider can't be the seller or another interested party, except in shared equity or sweat equity programs.
Related guides
Add the assistance program's approval as a document on the deal in ClosingCode and set its deadline as a task with an owner and due date.
Start free trialSources: Fannie Mae Selling Guide B5-5.1-01, Community Seconds Loans, and B5-5.1-02, Community Seconds Loan Eligibility (May 3, 2023), read at selling-guide.fanniemae.com on October 26, 2026.
General information, not financial advice. The lender and the program decide. ClosingCode is software; it is not a lender. This guide is not a substitute for the advice or services of an attorney.