The interest rate your lender gives you isn't the true cost of your mortgage. Learn how to calculate your effective interest ...

Since it's impossible to know for certain if interest rates will rise or fall while you're closing on your home, here's when it makes sense to lock in your mortgage rate.

During the fixed-rate period, rates are typically lower than on a conventional mortgage. If you anticipate rates to decline, an ARM could be a great option for getting the best rate.

The current median interest rate is 6.88% for a 30-year fixed-rate mortgage and 6.00% for a 15-year fixed-rate mortgage. WSJ Barron's MarketWatch IBD Buy Side from WSJ ...

CNBC Select explains how to calculate your debt-to-income ratio when applying for a mortgage. Plus: How lenders use your DTI and what's considered a good one.