What You Need To Know About Down Payment Assistance with a Shared Appreciation Mortgage
What Makes a Shared Appreciation Mortgage Different?
If last week’s article helped you understand the simpler types of Down Payment Assistance programs, today we’re tackling one of the more complex options: the Shared Appreciation Mortgage, or SAM. Think of it as a way to get a foot on the homeownership ladder without carrying huge monthly payments—but with a few critical trade-offs.
A SAM is usually a second mortgage that stays “silent.” That means no interest, no monthly payments, and repayment only happens when the home is sold or transferred. When that time comes, you pay back the original loan plus a share of any increase in your home’s value, called appreciation.
See How a SAM Loan Works in Real Life
Here’s a simple example. Imagine a SAM program provides 20% of a home’s purchase price to cover the down payment and closing costs. For a $400,000 home, 20% equals $80,000. You take a first mortgage from an approved lender for the remaining $320,000. The $80,000 SAM loan has no monthly payments and no interest.
Ten years later, you sell the home for $500,000. First, you pay off the remaining balance of the $320,000 first mortgage. Next, you repay the $80,000 SAM loan. On top of that, you give the SAM program 20% of the home’s appreciation. The home increased in value by $100,000 ($500,000 minus $400,000), so 20% of that is $20,000. In total, you return $100,000 ($80,000 in loan principal plus $20,000 in appreciation), which allows the program to assist another buyer.
How Appreciation Shares and Phase-Outs Affect Your Home Sale
The percentage of appreciation due is determined upfront by the SAM provider for that specific DPA program. Some programs include a “phase-out” feature. This means the program’s share of appreciation may decrease or disappear after a set number of years, letting you keep a larger portion of the home’s value.
Mortgage Lending Explained is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.
The Pros and Cons of a Shared Appreciation Mortgage
Advantages of a SAM include:
Smaller upfront costs and monthly payments make homeownership more accessible.
Lower interest rate for first-time or low-income buyers, reducing total interest paid over time.
Consider the downsides:
You give up a portion of your home’s future value.
If your home appreciates significantly, long-term costs may be higher than with a traditional mortgage.
Agreements can be complex, and there may be tax implications, so professional advice is essential.
Who Can Qualify for a Shared Appreciation Mortgage?
Shared Appreciation Down Payment Assistance programs are not widely used. California has the most well-known one, called Dream For All. It is typically funded once a year, and funds can run out quickly.
If you are interested in this type of DPA, check the Down Payment Assistance Link Page I created. It has a section dedicated to Shared Appreciation Mortgages to help you find the program that fits your needs.
Deciding If a SAM Loan Fits Your Homeownership Goals
A SAM can be a powerful tool to make homeownership possible, but it is not one-size-fits-all. Knowing exactly how much you could owe and when will help you decide if this program fits your goals and long-term plans. If last week’s article gave you the foundation, now you have the details to weigh whether a Shared Appreciation Mortgage could be the key step in your homeownership journey.
