The choice of which mortgage loan to go with starts with a simple question: fixed-rate or adjustable? There are many different terms, points, and rates associated with each, but narrowing your search to a category simplifies the process.

Fixed-rate mortgages are the more traditional choice. You and a lender agree to a length of time (or term) and an interest rate. That interest rate stays the same throughout the duration of the mortgage.

Adjustable Rate Mortgages (ARMs) are a slightly newer offering. These loans have a segment of time during which the interest rate is fixed. After that, the rate is determined by an economic indicator.

So, which is the right one for you? The answer depends on several factors.

How long do you plan to own your home?

One thing you’ll notice right away when shopping for mortgages is that ARMs have lower interest rates, sometimes by as much as 0.50%. On a $200,000 mortgage, that saves you as much as $70 a month! The initial rates are lower because the lender is taking on less risk.

With a traditional mortgage, if rates go up, the lender is stuck with a lower return. With the ARM, you agree to pay more as the lending market offers more. If you intend to buy the house, make some improvements and resell it for a profit, the ARM will lower your costs while you’re living there.

There’s still risk involved in the ARM even if you plan to sell the house.

If demand drops in your neighborhood, you may have trouble finding a buyer.

If you can find a buyer, but not for the price you paid for the house, the difference between the sale price and what you owe will follow you around. It is draining your monthly income until you finally get it paid off.

On the other hand, if you’re in your house for the long haul, the savings are likely to get wiped out once the adjustment period starts.

How much can you afford to put down?

An ARM can be easier to qualify for and provides you with an interest rate that you might not get without a 20% down payment. If you don’t have enough cash on hand to make a sizeable down payment, an ARM might give you some time to build equity.

Refinancing your mortgage after the initial period is over can put you in a better position. Use the equity you have in your home, plus whatever you’ve saved during that time, to put more money down and get a better fixed-rate mortgage.

Of course, this strategy is not without risk either. If the value of your home decreases, you may have a difficult time refinancing for the balance of the loan after the initial term.  This would leave you stuck paying the higher interest rates of the ARM. If you can’t make the payments, you still lose your house, regardless of the equity you’ve established.

If you’ve got the cash to make a 20% down payment or are buying in an up-and-down housing market, a fixed-rate mortgage provides a reasonable rate. Your mortgage payment stays the same from month-to-month, and there’s no uncertainty about what global economies do in the interim.

What’s your risk tolerance?

At the core of the choice between fixed-rate and adjustable-rate mortgages, is a quick and dirty shortcut. Fixed-rate mortgages are the safer, more conservative choice.

Adjustable-rate mortgages are the riskier alternative but offer the possibility of savings if:

• You have the room in your budget to accommodate a potentially fluctuating mortgage payment. You also have enough security in your work, savings, and other financial priorities.  An ARM does offer the potential to lower your monthly payment.
• You’re confident that the value of your home will increase faster than interest rates.

The stability of a fixed-rate mortgage may be desirable if you’ve found the house you want to raise a family in. The simplicity of the fixed-rate mortgage is also very appealing. It might be easier to be financially aggressive in other aspects of your life and not put the place where you live at risk.