There are times when it just makes sense to refinance your mortgage.

Lower Your Monthly Mortgage Payment

A drop of just one half to three quarters of a percentage point in interest can lower your monthly payment. There are a few different ways you can lower your monthly mortgage payment.

First, you can simply refinance to a lower interest rate. A lower rate generally means a lower monthly payment.

Second, you can change the term of your mortgage. For instance, if you have a 15-year mortgage, you can lengthen the term to 30 years. Since the balance of your mortgage is spread out over a longer period of time, your payment is lower.

Build Equity Faster

However, if you have a 30-year mortgage and one of your financial goals is long-term savings, you may want to consider shortening your term to 20 or even 15 years. Your payment will be higher, but you will pay much less in interest over the life of the loan, saving you thousands of dollars in the long run.

Refinance from an Adjustable Rate Mortgage to a Fixed-Rate

It's important to consider what mortgage rates are doing. Are mortgage rates rising or falling? If you have an adjustable rate mortgage (ARM), it may adjust to a rate that's higher than a fixed-rate mortgage. Now might be a good time to consider refinancing to a fixed-rate loan.

However, you must also consider the amount of time you plan on being in your home. If you're only going to be in your home for a few more years, it may make sense not to refinance out of your ARM. If you're going to be in your home longer than seven years, it might be a smart move to refinance to a fixed-rate mortgage.

Getting Cash from Your Home Improvements

The equity you have in your home can act like a savings account that you could access through a home equity loan or a cash-out refinance. This is usually done when you want to finance an important home improvement, pay for college or pay off high-interest credit card debt. Whatever your reason, this may be the right option for you.

Consolidating High-Interest Credit Card Debt

The difference between credit card debt and a mortgage can, financially speaking, mean thousands of dollars. Why? Because unlike your mortgage, the interest you pay on a credit card is not tax-deductible and you pay a higher rate than you would on your mortgage. Because of this, credit card debt is often referred to as "bad debt" whereas your mortgage is considered "good debt." Using your home equity to pay off your high-interest credit card debt can save you money in the long run. Using your home equity, rather than your credit cards, to finance expensive purchases can also be a smart move. Be sure to consult your tax advisor. Deciding on when to refinance your mortgage will depend on the circumstances of your situation: how long you'll be in the home, what your financial goals are, whether interest rates are dropping, etc. It's up to you to decide if it's right for you.

Bye Bye To PMI

If you were unable to make a down payment of 20 percent when you purchased your home, you may have been required to purchase Private Mortgage Insurance (PMI). If your house has appreciated since then, and you've steadily paid down your mortgage, your equity may now be more than 20 percent. If you refinance, you will no longer need PMI.