It's generally a good time to refinance when mortgage rates are 2% lower than the current rate on your loan. It may be a viable option even if the interest rate difference is only 1% or less. Any reduction can trim your monthly mortgage payments. Example: Your payment, excluding taxes and insurance, would be about $770 on a $100,000 loan at 8.5%; if the rate were lowered to 7.5%, your payment would then be $700, now you're saving $70 per month. Your savings depends on your income, budget, loan amount, and interest rate changes. Your trusted lender can help you calculate your options.

A point is a percentage of the loan amount, or 1-point = 1% of the loan, so one point on a $100,000 loan is $1,000. Points are costs that need to be paid to a lender to get mortgage financing under specified terms. Discount points are fees used to lower the interest rate on a mortgage loan by paying some of this interest up-front. Lenders may refer to costs in terms of basic points in hundredths of a percent, 100 basis points = 1 point, or 1% of the loan amount.

On a conventional mortgage, when your down payment is less than 20% of the purchase price of the home mortgage lenders usually require you get Private Mortgage Insurance (PMI) to protect them in case you default on your mortgage. Sometimes you may need to pay up to 1-year's worth of PMI premiums at closing which can cost several hundred dollars. The best way to avoid this extra expense is to make a 20% down payment, or ask about other loan program options.

Surprising as it may seem, some folks with hefty incomes find that it's mighty tough for them to save enough money to make a 20% cash down payment on their dream homes. Using conventional financing, such buyers must purchase Private Mortgage Insurance (PMI) which increases the cost of home ownership and, ironically, makes it even more difficult to qualify for the mortgage. However, if you're a dues-paying member of the cash-challenged class, don't despair. Given that your income is sufficiently high, it's eminently possible to avoid getting stuck with PMI. That is why 80-10-10 financing was invented. It is called 80-10-10 because a savings and loan association, bank, or other institutional lender provides a traditional 80% first mortgage, you get a 10% second mortgage, and make a cash down payment equal to 10% of the home's purchase price. By using this method, you are no longer obligated to take out PMI on your property.

The same principle applies if you can only afford to make a 5% down, 80-15-5 financing is also available. However, because a smaller cash down payment increases the lender's risk of default, do not be surprised when you are asked to pay higher loan fees and a higher mortgage interest rate for 80-15-5 than you pay for 80-10-10.

Mortgage rates can change from the day you apply for a loan to the day you close the transaction. If interest rates rise sharply during the application process it can increase the borrower's mortgage payment unexpectedly. Therefore, a lender can allow the borrower to "lock-in" the loan's interest rate guaranteeing that rate for a specified time period, often 30-60 days, sometimes for a fee.