- What it is: An 80/10/10 piggyback loan splits your financing into a first mortgage for 80% of the price, a second lien for 10%, and a 10% down payment, which keeps the first loan at 80% LTV and legally sidesteps PMI.
- Why buyers use it: PMI protects the lender, not you, and only conventional loans with under 20% down require it. A piggyback avoids that monthly charge entirely.
- The catch: The second lien often carries a higher, sometimes variable rate, plus a second set of closing costs, so the savings are not automatic.
- The honest counterpoint: PMI is removable at 80% equity and cancels automatically at 78%, so a single loan with PMI often wins if you expect to build equity fast or refinance soon.
- Run your own numbers: Use the calculator below to compare total interest plus mortgage insurance across your own rate quotes before you commit.
What an 80/10/10 piggyback loan actually is
You have less than 20% to put down, and your loan officer says the only way in is paying private mortgage insurance. That is not quite true. A piggyback loan is a way to buy with a smaller down payment while keeping mortgage insurance off your monthly bill entirely.
The most common structure is the 80/10/10. The numbers describe how the purchase is financed: a first mortgage covers 80% of the price, a simultaneous second lien (a home equity loan or a HELOC) covers 10%, and you bring 10% as a down payment. The point is the first number. Because that first mortgage sits at exactly 80% loan-to-value, it never triggers PMI. The Consumer Financial Protection Bureau notes that when you pay 20 percent down, PMI is not required with a conventional loan. A piggyback makes your first lender behave as if you did, even though your actual cash down payment is far smaller.
Piggybacks come in a few flavors. An 80/15/5 uses a larger second lien and only 5% down. An 80/10/10 is the classic. Whatever the split, the mechanics are identical: keep the first mortgage at 80% LTV, and fill the gap between your down payment and 20% with a second loan.
Who this is built for
Piggybacks tend to make sense for buyers with strong credit and reliable income who are short on cash for a full 20% down payment, and for buyers over the conforming loan limit who want to keep the first mortgage conforming. If you are still deciding how much to put down at all, our breakdown of the 20% down payment myth is worth reading first, because the right answer is rarely the round number people assume.
How PMI works, and when it disappears on its own
To judge a piggyback, you have to understand what you are avoiding. PMI is insurance you pay for that protects the lender if you stop paying. Fannie Mae explains that PMI is usually required with a conventional loan when the buyer makes a down payment of less than 20% of the home's value, because it is riskier for a lender to give a mortgage with less than a 20% down payment.
How much? According to Fannie Mae, PMI costs generally range from 0.5% to 1.5% of the original loan amount per year. Put another way, Freddie Mac says monthly premiums for PMI generally range from $30 to $70 for every $100,000 you borrow. Your exact rate depends mostly on your credit score and down payment size.
Here is the part that changes the whole calculation: PMI is not permanent. Under the federal Homeowners Protection Act, you have real rights to make it go away. The Federal Reserve summary of the act states that consumers have the right to request cancellation of PMI once the loan balance reaches 80 percent of the property's original value. And the act also requires lenders to cancel PMI automatically when the loan balance reaches 78 percent of the property's original value. There is even a backstop: the servicer must end PMI the month after you reach the midpoint of your loan's amortization schedule, which for a 30-year loan is after 15 years.
The whole debate in one sentence: a piggyback avoids PMI forever, but PMI on a single loan is temporary, so the question is really "how long would I have paid PMI anyway?"
How you qualify for a piggyback structure
Two loans means two approvals, and the second lien lender is picky because it sits behind the first in line if anything goes wrong. Expect tighter standards than a standard low-down-payment loan.
Credit score
Piggyback second liens usually want strong credit, often 680 and up, with the best pricing reserved for scores above 740. If your score is on the edge, see what each loan type requires in our guide to credit score minimums by loan type.
Combined loan-to-value
The lender looks at your combined LTV across both loans. An 80/10/10 lands at 90% CLTV. Push to 80/15/5 and you are at 95%, which narrows your lender options and raises your second-lien rate.
Debt-to-income
Both payments count against your DTI. That second lien payment can be the thing that tips you over a lender's limit, so get both loans underwritten together, not separately.
Reserves and documentation
Because you are financing more of the purchase, lenders often want to see cash reserves. Self-employed buyers and anyone with variable income should expect extra scrutiny, and should understand how underwriting conditions can delay a closing when two loans have to clear at once.
A piggyback is one of several structures for buyers short on down payment cash. If you are weighing all your options, our overview of the main types of mortgage loans puts FHA, conventional, and combo structures side by side.
A sharp agent knows which lenders actually write piggybacks
Not every lender offers simultaneous second liens, and pricing varies widely. A top local agent can point you to loan officers who do this every week, not once a year.
Match with a top local agentThe break-even math in the 2026 rate environment
This is where the decision gets real. The piggyback wins only when the interest you pay on the second lien, over the years you would have carried PMI, comes in lower than the PMI itself. Two current numbers drive that comparison.
First, mortgage rates. Freddie Mac's Primary Mortgage Market Survey reported that the 30-year fixed-rate mortgage averaged 6.65% as of August 20, 2026. Second, the cost of a second lien. Piggyback seconds are usually home equity loans or HELOCs, and as of late August 2026, the average HELOC adjustable rate was 7.16% and the average fixed-rate home equity loan was 7.35%, according to Curinos data. So your second lien will typically price roughly half a point to a point above your first mortgage, and a HELOC-based second is usually variable.
| Feature | 80/10/10 Piggyback | Single Loan + PMI |
|---|---|---|
| Down payment | 10% | 10% |
| First mortgage LTV | 80% | 90% |
| Monthly mortgage insurance | None | Yes, until removed |
| Second payment | Yes, the second lien | None |
| Rate on the extra financing | Higher, often variable (HELOC) | Same as first mortgage |
| Closing costs | Two sets | One set |
| Goes away when? | When you pay off the second lien | At 80% (request) or 78% LTV (automatic) |
| Tax note | Interest deductibility depends on how funds are used | PMI deductibility depends on current tax law |
Two scenarios that go opposite ways
Scenario A: the piggyback wins
You buy at $400,000 with 10% down. Your first mortgage is 6.65% on $320,000, and a $40,000 second lien sits at 7.5%. PMI on the single-loan alternative would run about 0.75% a year, roughly $225 a month on a $360,000 loan. You do not expect to hit 20% equity for six or seven years because your area is flat. Over six years, the extra interest on the second lien costs you less than six years of PMI plus the higher interest on a 90% first loan. The piggyback saves money.
Scenario B: PMI wins
Same house, but you plan to throw extra cash at principal, or you bought in an appreciating market and expect to reach 20% equity in three years. Now you would only carry PMI for a short window. The single loan with removable PMI costs less overall, and you avoid a second set of closing costs and a variable-rate lien. Paying PMI for a couple of years is the cheaper path.
Piggyback vs. PMI break-even calculator
Compare total interest plus mortgage insurance
Enter your price, rate quotes, and how many years you expect to carry PMI before hitting 20% equity. The tool compares an 80/10/10 (or your own split) against a single loan with PMI over that window.
This is an estimate for education only. It compares interest and mortgage insurance over your chosen window and does not include closing costs on the second loan, tax effects, or rate changes on a variable HELOC. Compare your actual Loan Estimates before deciding.
The honest counterpoint: when a single loan with PMI wins
This is the part the piggyback pitch skips. In a lot of 2026 scenarios, one loan with PMI is the smarter move. Here is why.
PMI ends. A variable second lien does not, at least not on its own. Because you can request cancellation at 80% of original value and the lender must cancel automatically at 78%, the PMI clock is working for you the moment you close. If your home appreciates or you pay down principal, you can even reach that threshold ahead of schedule. A borrower who hits 20% equity in three years pays PMI for three years, then it is gone forever, and they never took on a second set of closing costs.
Second liens also carry rate risk. Most HELOCs are variable-rate products tied to an external interest rate, typically the prime rate, so when that rate rises the rate on your HELOC generally follows. That means the "savings" you modeled at today's rate can shrink or vanish if rates climb during your hold period. A fixed-rate home equity loan removes that risk but usually prices higher to begin with. If you are already comfortable with rate uncertainty, our look at whether an ARM makes sense in 2026 covers the same tradeoff from a different angle.
And do not forget the second closing. A piggyback means two originations, which can mean two sets of lender fees, title work, and recording costs. Our closing cost breakdown for buyers shows how quickly those add up, and they eat directly into any interest savings the second lien delivers.
Rule of thumb: the longer you would carry PMI, the better a piggyback looks. The faster you expect to reach 20% equity, the better plain PMI looks. Your appreciation outlook and prepayment plans matter more than the sticker rates.
Red flags and watch-outs before you sign
- A variable second lien with no cap you understand. Ask for the index, the margin, and the lifetime cap in writing. If the rate can float freely, your break-even can move against you.
- A comparison that ignores closing costs. If a loan officer shows you interest savings but leaves out the second loan's fees, the math is incomplete. Insist on total cost.
- A refinance that gets complicated later. Refinancing a first mortgage with a second lien in place often requires the second lender to agree to stay subordinate. That extra step can slow or block a future refi.
- Assuming the second lien vanishes with equity. Unlike PMI, a piggyback second does not fall off when you hit 20% equity. You have to pay it down or refinance it away.
- DTI that only works on paper. Two payments raise your monthly obligation. Make sure the combined payment is one you can carry if your income dips.
Pressure-test the piggyback pitch with someone on your side
A top-performing buyer's agent has watched dozens of these structures play out. They can flag when a piggyback is genuinely cheaper and when it just looks that way on a rate sheet.
Find your buyer's agentAlternatives worth comparing first
A piggyback is not the only way to handle a small down payment. Put these on the table before you decide.
Lender-paid mortgage insurance (LPMI)
With LPMI, the lender covers the insurance in exchange for a higher rate. The tradeoff is real: unlike borrower-paid PMI, you cannot cancel lender-paid PMI when your equity hits 20% because it is paid in full up front, and the only way to reduce your payment is to refinance. LPMI can beat borrower-paid PMI on a short horizon and lose badly on a long one.
Single-premium PMI
You pay the whole premium at closing, either in cash or rolled into the loan, which lowers your monthly payment. The risk: if you sell or refinance early, you generally do not get a refund of the unused portion.
Just paying borrower-paid PMI and canceling it
The plain-vanilla option is often underrated. You pay monthly PMI, build equity, and cancel. Because you can request removal at 80% LTV, an aggressive prepayment plan can shorten the PMI window dramatically. Buying points to lower your first-mortgage rate can also change the picture, and our guide to how mortgage points work has a break-even tool for that decision.
A bigger down payment or gift funds
If reaching 20% is close, gift money or a few more months of saving can eliminate the whole question. There is no PMI and no second lien to manage.
Frequently asked questions
Does an 80/10/10 piggyback loan really avoid PMI completely?
Yes. PMI is triggered when a conventional first mortgage exceeds 80% loan-to-value. Because a piggyback keeps the first mortgage at exactly 80%, it never requires PMI, even though your cash down payment is only 10%. You are trading the PMI charge for a second loan payment instead.
Is a piggyback loan cheaper than paying PMI?
Sometimes. It depends on your second lien rate, your PMI rate, and how long you would carry PMI. The longer you would pay PMI before reaching 20% equity, the more a piggyback tends to save. If you expect to hit 20% equity quickly, a single loan with removable PMI often costs less overall once you count the second loan's closing costs.
When does PMI go away on a regular loan?
Under the Homeowners Protection Act, you can request cancellation once your balance reaches 80% of the home's original value, and the servicer must cancel automatically at 78%. There is also a final termination at the midpoint of the loan term. That temporary nature is the main reason plain PMI can beat a piggyback.
What is the difference between an 80/10/10 and an 80/15/5?
The middle and last numbers are the second lien and your down payment. An 80/10/10 uses a 10% second lien and 10% down (90% combined LTV). An 80/15/5 uses a 15% second lien and only 5% down (95% combined LTV). The 80/15/5 needs less cash but usually carries a higher second-lien rate and fewer lender options.
Is the second lien on a piggyback a fixed or variable rate?
It can be either. A home equity loan is typically fixed. A HELOC is usually variable and tied to the prime rate, so the rate can rise over time. If you use a variable second lien, ask for the index, margin, and lifetime cap so you can stress-test your break-even.
Can I refinance later if I have a piggyback loan?
Yes, but it is more complex. To refinance the first mortgage, the second-lien lender usually has to agree to remain in second position through a subordination agreement. That extra step can add time and, occasionally, be denied, so factor it into any plan that relies on refinancing.
Does PMI apply to FHA or VA loans too?
No. PMI applies only to conventional loans. FHA loans carry a separate mortgage insurance premium (MIP) with different rules, and VA loans for eligible borrowers do not require monthly mortgage insurance at all. A piggyback is a conventional-loan strategy, so compare it against those government-backed options if you qualify.
What credit score do I need for a piggyback loan?
Second-lien lenders generally want strong credit, often 680 or higher, with the best pricing above 740. Because the second lien is riskier for the lender, standards are usually tighter than for a single low-down-payment loan. Both loans are underwritten with your combined payments counted toward your debt-to-income ratio.
The bottom line
An 80/10/10 piggyback is a legitimate way to buy with 10% down and keep mortgage insurance off your payment. But it is not a free lunch. You are swapping a temporary, removable charge (PMI) for a permanent second loan, often at a higher and sometimes variable rate, with a second set of closing costs. In the 2026 environment, with 30-year rates near 6.65% and second-lien rates a bit above 7%, the piggyback wins mainly when you expect to carry the loan a long time before reaching 20% equity. If you plan to build equity quickly or refinance soon, plain borrower-paid PMI that cancels at 78% is often the cheaper, simpler choice. Run both structures with your own quotes, count every fee, and make the lender show you total cost, not just the monthly payment.
Disclaimer: This article is for informational purposes only and should not be considered financial, investment, or legal advice. Figures are drawn from the Consumer Financial Protection Bureau, Fannie Mae, Freddie Mac, the Federal Reserve summary of the Homeowners Protection Act, and Curinos rate data as cited, and are current as of August 2026; rates and mortgage insurance costs change frequently. EffectiveAgents is a real estate agent matching service, not a lender, mortgage broker, or tax advisor. Consult a licensed loan officer and tax professional about your specific situation.
