Second Mortgages Explained: Reasons You Might Need One

second mortgage

When you hear the phrase “second mortgage,” a negative connotation may come to mind. You could be thinking, “Why would I need a second mortgage? I’m not in financial distress!”

You might even ask yourself if it’s possible to have two mortgage loans on one house at the same time.

Well, times have changed, and gone are the days when homeowners come up with large down payments when purchasing real estate. While 20% down may have been the norm for your parents, zero down (or close to it) seems to be the standard today.

Prior to the mortgage crisis in the late 2010s, it was quite common for borrowers to hold two mortgages, typically in the form of a traditional first mortgage and a home equity line or loan as part of a combo loan.

The driving force was loose mortgage underwriting standards, which allowed prospective home buyers to purchase property with no down payment whatsoever. High home prices also made it a necessity in many cases.

Today, we’re not far off. You can get FHA loans with just 3.5% down, or a loan backed by Fannie Mae or Freddie Mac with just 3% down.

While both those options provide financing in a single home loan, they require you to pay mortgage insurance. And the loan amount can’t exceed the conforming limit.

For some folks, a first and second mortgage may be necessary to get the job done, assuming loan limits are exhausted. Or two mortgages might just price out better than one.

In short, it can be difficult and/or more expensive to get a single mortgage with very little down, so homeowners will opt for two loans instead. Let’s take a look at how that works.

Types of Second Mortgages

second mortgage types

The Piggyback Loan

As mentioned, some homeowners carry both a first and second mortgage, often closed concurrently during a home purchase transaction. In these cases, the 2nd mortgage is referred to as a “piggyback loan” because it is taken out at the same time and sits behind the first mortgage.

Piggyback mortgage loans are used to extend financing, allowing borrowers to put down less on a home, or break up their loan into two separate amounts to produce a more favorable blended rate.

Two common formulas for a piggyback loan are an 80/10/10 loan or an 80/20 loan.

An 80/10/10 translates to an 80% loan-to-value ratio (LTV) on the first mortgage, 10% LTV on the second mortgage, and a 10% down payment. In essence, you’re putting down just 10%, but keeping your first mortgage at the important 80% LTV or less threshold to avoid mortgage insurance.

You may also get a more competitive interest rate if your first mortgage is at 80% LTV or lower.

For example, if the purchase price were $100,000, you’d get a first mortgage for $80,000, a second mortgage for $10,000, and bring $10,000 to the table in down payment money.

An 80/20 is an 80% 1st mortgage, a 20% 2nd mortgage, and zero down payment.  Uh oh. These are less common today than they were in the early 2000s because lenders have become much more risk-averse.

Using the same example from above, you’d have an $80,000 first mortgage and a $20,000 second mortgage with no down payment whatsoever. This was a simple, yet risky way to get a mortgage with no skin in the game a decade or so ago.

Second mortgages can also be opened after a first mortgage transaction is closed, as a source for additional funds. These are known as “standalone second mortgages” because they are taken out separately, without disrupting the first mortgage.

Let’s say you bought that same $100,000 home, but came in with a 20% down payment. Over time, you would gain equity as the mortgage was paid down.

After say 10 years, you’d have quite the equity cushion, assuming home prices also appreciated. Let’s pretend the home is now worth $125,000, and your remaining loan balance is $75,000.

You’ve got $50,000 in equity to play with. You can either refinance your first mortgage to access that money, or alternatively open a standalone second mortgage to tap into it.

If it’s the latter option, homeowners can either elect to take a lump sum of cash in the form of a home equity loan, or opt for a home equity line of credit (HELOC), which allows them to draw specific amounts of money when needed using an associated credit card.

Keep in mind that you need equity in your home to execute this type of transaction.

How Do You Take Out a Second Mortgage on Your Home?

It’s pretty common for certain banks to specialize in second mortgages, but often you’ll be getting your first mortgage elsewhere.

In the case of the piggyback second, you would likely have the first mortgage lender point you in the direction of a second mortgage lender. And by that, I mean they’d likely have a lending partner they work with that only does second mortgages.

They would probably facilitate the transaction to ensure everything ran smoothly between the two lenders, handling all the paperwork so you wouldn’t have to do twice the amount of work.

The same goes with mortgage brokers – they’re able to line up financing for a first and second mortgage with two different lenders concurrently.

You would still need to be underwritten by the second lender, as you would the first, and gain approval and close on the loan at the same time the first mortgage closes.

If you already have a mortgage and want a second one, you’d shop for the mortgage as you would any other mortgage, and then you would apply in a similar fashion.

However, the process should be a lot easier and faster if it’s a standalone second such as a home equity loan or HELOC.

But you can expect the same basic underwriting criteria, such as income, asset, and employment verification, along with a credit pull.

The upside is that the closing costs should be a lot lower on the second mortgage, even if the rate is higher. That brings us to another important topic.

Second Mortgage Rates Are Typically Higher

Curious if second mortgage rates are higher, lower, or the same as rates on first mortgages?

Well, monthly payments on second mortgages are typically pretty low relative to first mortgages, but only because the loan amount is generally much smaller.

For example, if you have a first mortgage of $400,000 and a second mortgage of $50,000, the monthly payment will be a lot lower on the second, even if the mortgage rate is high (and they can be). That’s the saving grace.

But interest rates on second mortgages will generally be higher than firsts, and can be quite steep, we’re talking 12% in some cases depending on property type, so be sure to do the math to ensure it’s the right choice before moving forward.

The rates are higher for several reasons, one being that they’re subordinate to the first mortgage. That means they’re riskier to the lender because they get paid out second in the case of a foreclosure.

Another reason they tend to be higher is because the loan amounts are small, as noted, so less interest is earned by the bank. And the LTVs are often quite high, meaning there isn’t much of an equity cushion if home prices take a turn for the worse.

However, there are affordable options as well if you have good credit and a decent amount of equity in your property.

Second mortgages are offered in both adjustable and fixed-rate options, with home equity loans typically fixed and HELOCs variable rate tied to the prime rate.

If you go with a fixed option, expect the rate to be higher at the outset because you’re paying for the relative safety and stability of a rate that won’t adjust.

I’ve seen second mortgage rates advertised in the high 4% range, which is pretty attractive, though the LTV is typically capped at 70% or nowhere close to 100%. Rates may range from 5-7% or higher for other, more typical scenarios.

If you go with a variable rate, such as a home equity line of credit, you might be able to get a rate below prime (currently 4.50%). I’ve seen rates advertised around 3-4%, which is generally a teaser rate for the first six months or year. After that time is up you might expect a rate of 4.50% or higher.

While the rates are similar to fixed seconds, they can come in handy if you just need temporary financing and want the lowest possible rate, or if you just want to borrow a small amount and pay it back fairly quickly.

HELOCs work similar to a credit card in that you can borrow over and over again up to your credit limit. Also note that HELOCs come with an interest-only option during the initial draw period, as do some home equity loans early on.

In any case, just like first mortgages, you should have several options to choose from to find the right fit for your particular situation.

It might be in your best interest (the puns just won’t stop) to put more money down or explore other alternatives such as a larger first mortgage amount if the interest rate is sky-high on the second mortgage.

Tip: You might be able to get a second mortgage with bad credit but the interest rate will likely be high and the LTV could be fairly limited as well.

Advantages of Second Mortgages

Second mortgages that are closed concurrently with the first mortgage during a purchase transaction are also referred to as “purchase money second mortgages.” As mentioned earlier, these second mortgages allow homeowners to come in with a smaller down payment, or no down payment at all.

During a purchase transaction, the homeowner can break up the total loan amount into two separate loans called a combo loan. The risk is split between the two loans, allowing higher combined loan-to-values and lower blended interest rates.

Second mortgages in the form of piggyback loans also allow homeowners to avoid paying PMI, or private mortgage insurance. The savings can be quite substantial depending on how the loan breaks down, often saving the homeowner hundreds of dollars a month. If the first loan is kept at or below 80% loan-to-value, PMI needn’t be paid.

Additionally, breaking up your total loan amount between a 1st and 2nd mortgage may allow you to keep your first mortgage under the conforming loan limit, which should help you obtain a lower interest rate if you’re in jumbo loan territory.

Second mortgages can also be opened after the purchase transaction is complete, as a home equity loan or home equity line of credit. This additional allowance of funds can provide a homeowner with much needed cash to improve the quality of their home or pay off high-interest loans, while avoiding a refinance of the existing first mortgage.

This can make sense if your first mortgage rate is fixed and super low, and you want to hang onto it. I expect this to be a common scenario thanks to those record low mortgage rates.

Disadvantages of Second Mortgages

Once you’ve got a second mortgage, it will be increasingly difficult to get any additional financing, such as a third mortgage. While it’s probably not common that a homeowner should require a third mortgage, emergencies do happen, and you may mind yourself trapped if you need more funds for any other reason.

Interest rates on second mortgages are typically quite high compared to first mortgages, and it’s quite common to receive an interest rate in the double-digits on a 2nd mortgage. You could get a better deal with just one mortgage, or possibly even by paying mortgage insurance.

Many second mortgages are home equity lines of credit, which are tied to the prime rate. Whenever the prime rate is adjusted, the interest rate on your home equity line will change accordingly, effectively making it an adjustable-rate mortgage. When the Fed was raising the prime rate month after month in years past, many homeowners faced substantially higher monthly payments on their second mortgages.

Some home equity lines come with additional fees, such as an early closure fee, as well as minimum draw amounts that may exceed your personal needs. Make sure you read all the fine print to avoid any unwanted surprises.

Last but not least, second mortgages mean more debt, a higher mortgage payment, more interest due, and can potentially extend the amount of time it takes to pay off your original mortgage.

All that said, while there are a number of pros and cons to opening a second mortgage, they shouldn’t be looked upon as negative financing instruments, rather just another option to consider when seeking home loan financing.

Reasons to Take Out a Second Mortgage

  • To extend financing (get zero down or low-down financing)
  • To avoid mortgage insurance by breaking the loan up into two
  • To keep the first mortgage at/below the conforming limit for a lower interest rate
  • To fund home improvements, pay for college tuition, pay off an auto loan
  • For debt consolidation (pay off high-interest credit cards)
  • To have an emergency source of cash at the ready
  • To fund an additional home purchase (down payment)

One final note: Many mortgage lenders have reduced the availability of second mortgage programs in recent years as a result of the prior financial crisis, so you may find it much more difficult to obtain one these days.

But second mortgages are still around, and can be found at a variety of banks, lenders, and credit unions nationwide.  The only difference now is that the LTV is often restricted to say 85-90%, versus 100% during the housing boom.

At the same time, there are still crazy loan programs that allow folks to get a second mortgage with no equity in the home, like 125% second mortgages being offered by CashCall.  So there’s plenty out there if you’re willing to pay a premium for it.


  1. Colin Robertson January 28, 2018 at 5:14 pm -


    Lenders generally consider borrowed funds secured by an asset (such as a home) as an acceptable source of funds for down payment, but you have to consider the monthly cost of the second mortgage when calculating DTI on the subsequent home purchase, and be mindful of early payoff of the second (are there any fees or closing costs recaptured?).

  2. Lisa January 28, 2018 at 8:49 am -

    We want to purchase a new home but will not have a down payment until we sell our first home. Can we use a second mortgage as our down payment to purchase our next home and pay off the second mortgage after we sell our first home?

  3. Colin Robertson August 21, 2017 at 11:53 am -


    To avoid going over 80% or just getting 80% combined? It’s certainly harder to find seconds on non-owner occupied properties these days, but there might some lenders out there. You may want to look at non-QM lenders if traditional lenders can’t do it.

  4. Mike August 21, 2017 at 6:28 am -

    Hi Colin,

    Is it possible to take out a second mortgage on purchasing investment property to avoid 80% loan to value? Would mezzanine debt be the only option? Thank you,


  5. Colin Robertson March 13, 2017 at 7:17 pm -


    In general, it’s possible for junior lienholders (second mortgage lenders) to start the foreclosure process, though they are secondary to the first lien lender in terms of recovering monies. In some cases they may then negotiate with the first lien lender to improve their position so they don’t wind up with nothing.

  6. Gilberto March 11, 2017 at 4:30 pm -

    I have mortgage 80% and 20% I’m ok on my 80% but on my 20% no, so they say I’m in foreclosure whit the 20% so he tell me the house is not my anymore but I speak with the 80% and they said they can’t duet that because we are the majority in the loan …so what can I do?? I live in Houston tx.

  7. Colin Robertson January 12, 2017 at 12:04 pm -


    I don’t know the terms of your agreement with her, may want to read the fine print in the agreement. Generally, second lien lenders won’t foreclose unless there’s sufficient equity for them to get paid back after the first lender is made whole.

  8. Diane January 11, 2017 at 8:13 pm -

    We have a first mortgage with a mortgage co, no problem. About four yrs after we got a second mortgage from a personal lender, now the mortgage is done , she wants her money , we are having trouble getting a loan , she is threading to make us sell our house,,, doesn’t, the first mostgage people can make her stop doing this ,because we have had no trouble paying either , second mortgage just wants to get out of it ,can she make us sell are home

  9. Colin Robertson October 11, 2016 at 7:30 am -


    Yes, there are often pricing adjustments for loans with a subordinate financing…

  10. Michael Cohen October 10, 2016 at 4:34 pm -

    I am buying a house – was going to do an 80/10/10 – I got the first mortgage approved and before starting the process for the 2nd, my loan officer told me (for the first time) that getting a second lien on the house will raise the rate of the first mortgage – is that legal?

  11. soony c sandore August 6, 2016 at 4:11 am -

    looking for a 2nd mortgage for one year on a home in Rancho Park in Los Angeles, ca 90064.

    House is on for sale at $1,450K.
    1st mortgage is 700K.

    credit score is 600.

  12. Maximal Kewl June 17, 2015 at 10:52 am -

    I have had both Chase & BofA as my Mortgage servicer, both told me on my home in Oregon they would not reconsider PMI until 60 months had passed. Maybe the laws vary from state to state… but the chances your mortgage will end up being serviced by one of them as high. And PMI is only deductible under 110,000.

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