A 5/6 hybrid adjustable-rate mortgage (5/6 hybrid ARM) is an adjustable-rate mortgage (ARM) that has a fixed interest rate for the first five years, after which the interest rate can change every six months.

How a 5/6 Hybrid ARM Works

As the name indicates, a 5/6 hybrid ARM combines the characteristics of a traditional fixed-rate mortgage with those of an adjustable-rate mortgage. It starts out with a fixed interest rate for five years. Then the interest rate becomes adjustable for the remaining years of the mortgage.

The adjustable rate is based on a benchmark index, such as the prime rate. On top of that, the lender will add additional percentage points, known as a margin. For example, if the index is currently at 4% and the lender’s margin is 3%, then your fully indexed interest rate (the rate that you would actually pay) will be 7%. While the index is variable, the margin is fixed for the life of the loan.

A 5/6 hybrid ARM should have caps on how much the interest rate can rise in any given six-month period, as well as over the life of the loan. This offers some protection against rising interest rates that could make the monthly mortgage payments unmanageable.

How Are 5/6 Mortgages Indexed?

Lenders can use different indexes to set the interest rates on their 5/6 hybrid ARMs. Two commonly used indexes today are the U.S. prime rate and the Constant Maturity Treasury (CMT) rate. The London Interbank Offered Rate (LIBOR) index was once in wide use as well, but it is now being phased out.

While interest rates can be hard to predict, it’s worth noting that in a rising-interest-rate environment, the longer the time period between interest rate reset dates, the better it will be for the borrower. For example, a 5/1 hybrid ARM, which has a fixed five-year period and then adjusts on an annual basis, would be better than a 5/6 ARM because its interest rate would not rise as quickly. The opposite would be true in a falling-interest-rate environment.

5/6 Hybrid ARM vs. Fixed-Rate Mortgage

Whether an adjustable-rate mortgage or a fixed-rate mortgage would be better for your purposes depends on a variety of factors. Here are the major pros and cons to consider.

Advantages of a 5/6 Hybrid ARM

Many adjustable-rate mortgages, including 5/6 hybrid ARMs, start out with lower interest rates than fixed-rate mortgages. This could provide the borrower with a significant savings advantage, especially if they expect to sell the home or refinance their mortgage before the fixed-rate period of the ARM ends.

Consider a newly married couple purchasing their first home. They know from the outset that the house will be too small once they have children, so they sign up for a 5/6 hybrid ARM and take advantage of the lower interest rate until they’re ready to trade up to a larger home.

However, the couple should be careful to check the 5/6 hybrid ARM contract before signing it, to make sure that it doesn’t impose any costly prepayment penalties for getting out of the mortgage early.

Disadvantages of a 5/6 Hybrid ARM

The biggest danger associated with a 5/6 hybrid ARM is interest rate risk. Because the interest rate can increase every six months after the first five years, the monthly mortgage payments could rise significantly and even become unaffordable if the borrower keeps the mortgage for that long. With a fixed-rate mortgage, by contrast, the interest rate will never rise, regardless of what’s going on in the economy.

Of course, the interest rate risk is mitigated to some degree if the 5/6 hybrid ARM has periodic and lifetime caps on any interest rate rises. Even so, anyone considering a 5/6 hybrid ARM would be wise to calculate what their new monthly payments would be if the rates were to rise to their caps and then decide whether they could manage the added cost.

Is a 5/6 Hybrid ARM a Good Idea?

Whether a 5/6 hybrid ARM is right for you could depend on how long you plan to keep it. If you expect to sell or refinance the home before the five-year fixed-rate period expires, you’ll benefit from its generally low fixed interest rate.

However, if you plan to keep the loan past the five-year mark, you may do better with a traditional fixed-rate mortgage. Your payments may be somewhat higher initially, but you won’t face the risk of them increasing dramatically when the 5/6 hybrid ARM begins to adjust.

Bear in mind that there are many different types of mortgages to choose from, both fixed-rate and adjustable-rate.

FAQs

A 3-2-1 buydown mortgage is a type of loan that starts out with a low interest rate and rises over the next several years until it reaches its permanent rate.

Here is how 3-2-1 buydown mortgages work and how to decide if one is right for you.

How 3-2-1 Buydown Mortgages Work

A buydown is a mortgage-financing technique that allows a homebuyer to obtain a lower interest rate for at least the first few years of the loan, or possibly its entire life, in return for an extra up-front payment. It is similar to the practice of buying discount points on a mortgage in return for a lower interest rate.

Either the homebuyer/borrower or the home seller may cover the costs of the buydown.

In general, 3-2-1 buydown loans are available only for primary and secondary homes, not for investment properties. The 3-2-1 buydown is also not available as part of an adjustable-rate mortgage (ARM) with an initial period of fewer than five years.

In a 3-2-1 buydown mortgage, the loan’s interest rate is lowered by 3% in the first year, 2% in the second year, and 1% in the third year. The permanent interest rate then kicks in for the remaining term of the loan. In a 2-1 buydown, by contrast, the rate is lowered by 2% during the first year, 1% in the second year, and then goes to the permanent rate after the buydown period ends.

Pros and Cons of a 3-2-1 Buydown Mortgage

A 3-2-1 buydown mortgage can be an attractive option for homebuyers who have some extra cash available at the outset of the loan, as well as for home sellers who need to offer an incentive to facilitate the sale of their homes.

It also can be advantageous for borrowers who expect to have a higher income in future years. Over the first three years of lower monthly payments, the borrower can also set aside cash for other expenses, such as home repairs or remodeling.

When the loan finally resets to its permanent interest rate, borrowers have the certainty of knowing what their payments will be for years to come, which can be useful for budgeting. A fixed-rate 3-2-1 buydown mortgage is less risky than the above-mentioned ARM or a variable-rate mortgage, where rising interest rates could mean higher monthly payments in the future.

A potential downside of a 3-2-1 buydown mortgage is that it may lull the borrower into buying a more expensive home than they will be able to afford once their loan reaches its full interest rate. Borrowers who assume that their income will rise in line with future payments could find themselves in too deep if their income fails to keep pace.

Examples of Subsidized 3-2-1 Buydown Mortgages

In many situations, the up-front costs of a 3-2-1 buydown will be covered by someone other than the homebuyer. For example, a seller might be willing to pay for one to seal the deal. In other cases, a company moving an employee to a new city might cover the buydown cost to ease the expense of relocation. More commonly, real estate developers will offer buydowns as incentives to potential buyers of newly built homes.

Is a 3-2-1 Buydown Mortgage Right for Me?

If you will need to pay for the buydown on your own, then the key question to ask yourself is whether paying the cash up front is worth the several years of lower payments that you’ll receive in return. You might, for example, have other uses for that money, such as investing it or using it to pay off other debts with higher interest rates, like credit cards or car loans. If you have the cash to spare and don’t need it for anything else, then a 3-2-1 buydown mortgage could make sense.

As mentioned earlier, however, it can be risky to go with a 3-2-1 buydown mortgage on the assumption that your income will rise sufficiently over the next three years so that you’ll be able to afford the mortgage payments when they reach their maximum. For that reason, you’ll also want to consider how secure your job is and whether unforeseen circumstances could come along that would make those payments unmanageable.

The question is easier to answer when someone else is footing the bill for the buydown. In that case, you’ll still want to ask yourself whether those maximum monthly payments will be affordable when the time comes—or whether the enticingly low initial rates could be leading you to buy a more expensive home and take on a bigger mortgage than makes sense financially. You’ll also want to make sure that the home is fairly priced in the first place and that the seller isn’t padding the price to cover its buydown costs.

These are questions that only you can answer, but you may find this Investopedia article on How Much Mortgage Can You Afford? helpful.

FAQs

Homebuyers face may choices in types of mortgages, from longer-term fixed rate loans to shorter-term adjustable-rate loans. A 2/28 adjustable-rate mortgage is one type of adjustable rate mortgage that is less common than the traditional 30-year fixed mortgage, but it may suit some buyers’ needs.

A 2/28 mortgage essentially offers a two-year fixed interest rate followed by a floating rate for 28 years. Learn how this type of mortgage works, and more about the pros and cons.

What Is a 2/28 Adjustable-Rate Mortgage (2/28 ARM)?

A 2/28 adjustable-rate mortgage (2/28 ARM) is a type of 30-year home loan that has an initial two-year fixed interest rate period. After this two-year period, the rate floats based on an index rate plus a margin.

The initial teaser rate is typically below the average rate of conventional mortgages, but the adjustable rate can then rise significantly. Since banks don’t make much money on the initial teaser rate, 2/28 ARMs include hefty prepayment penalties during the first two years.

Understanding 2/28 Adjustable-Rate Mortgages (2/28 ARMs)

The 2/28 ARMs became popular during the real estate boom of the early 2000s, when soaring prices put conventional mortgage payments out of reach for many buyers.

Other ARM structures exist, such as 5/1, 5/5, and 5/6 ARMs, which feature a five-year introductory period followed by a rate adjustment every five years or every six months, respectively. Notably, 15/15 ARMs adjust once after 15 years and then remain fixed for the remainder of the loan.

Less common are the 2/28 and 3/27 ARMs. With the former, the fixed interest rate applies for only the first two years, followed by 28 years of adjustable rates. With the latter, the fixed rate is for three years, with adjustments in each of the following 27 years. In these cases, rates adjust semiannually.

Example of 2/28 ARM

For example, let’s say you are buying a $350,000 home and providing a down payment of $50,000. You have a $300,000 2/28 ARM mortgage with an initial interest rate of 5% and monthly payments of $1,906. (Total monthly mortgage payments vary when property taxes and insurance costs are factored in. This example assumes $230 per month in property tax and $66 per month in insurance costs.)

With a 2/28 ARM, your interest rate of 5% remains fixed for two years. Then, it can change based on changes in a broader index rate. Let’s say your interest rate then rises to 5.3%. Your total monthly costs would rise to $1,961. Your interest rate would continue to change over the remainder of the loan depending on the broader index. So, the total costs of the loan would be difficult to estimate.

In comparison, if you had a 30-fixed mortgage on the same loan with 5% interest, you would pay $1,906 per month and you can expect to pay $279,987 in total interest if you did not pay the loan off early.

Risks of 2/28 ARMs

The risk with an adjustable-rate mortgages like an 2/28 ARM is the potential for the rate to increase. After two years, the rate is adjusted every six months, typically upward, by a margin above an index rate, such as the federal funds rate or the Secured Overnight Financing Rate (SOFR). 2/28 ARMs have some built-in safety features, such as a lifetime interest rate cap and limits on how much the rate can change with each period. But even with caps, homeowners can face significant payment spikes in volatile markets.

During the boom, many homeowners failed to understand how a seemingly small rate increase could dramatically boost their monthly payment. And even many of those who were fully aware of the risks viewed 2/28 ARMs as a short-term financing vehicle. The idea was to take advantage of the low teaser rate, then refinance after two years to either a conventional mortgage. Or, if their credit was not good enough, they would refinance to a new adjustable mortgage. Amid spiking real estate prices, this strategy kicked the debt further down the road. To many, this made a certain amount of sense since, after all, the borrower’s home equity was rising fast.

But with the market collapse in 2008, home values plummeted. Many owners with 2/28 ARMs found were unable to refinance, make their payments, or sell their homes for the value of the outstanding loan. The rash of foreclosures led to stricter loan standards. Today, banks more carefully evaluate a borrower’s ability to make adjustable-rate payments.

2/28 ARM vs. Fixed Rate Mortgage

Adjustable-rate mortgages like a 2/28 ARM work differently than fixed-rate mortgages and this difference is important to understand for planning your long-term finances.

An adjustable rate mortgage will have an interest rate that can change. That means your monthly payments can change and the overall total interest you will pay is unpredictable. Because the interest can change, you will need to prepare for the possibility that you will have to make higher monthly payments.

In contrast, interest on a fixed-rate mortgage does not change. You can plan for the same monthly payment for the life of the loan. A 2/28 ARM offers the fixed rate for only the first two years, after which the rate can adjust.

Is a 2/28 Adjustable-Rate Mortgage Right for You?

A 2/28 adjustable-rate mortgage has advantages and disadvantages that make it ideal for some buyers but not for others. Weigh the pros and cons with your own financial situation to determine if this type of mortgage is right for you.

You may benefit from a 2/28 ARM if you need a lower monthly payment at the beginning of your mortgage and if you believe you will be able to make higher monthly payments in the future. However if you can afford a higher monthly payment, you may save more money in total interest costs with other loan options, such as a 15-year fixed-rate loan.