The process of refinancing a mortgage works in a similar way to obtaining a mortgage to purchase a home, with the obvious difference being that you already own the home. You'll need to contact a lender, fill out a mortgage application for a refinancing loan, and go through the lender's approval process.
There are two main qualification requirements for refinancing your mortgage. First, your personal credit and income qualifications must be sufficient to justify the mortgage. Borrowers with top-notch credit scores tend to get the best interest rates on refinancing loans, just as they would with a purchase mortgage. Lenders also want to see that the borrower's income is sufficient to comfortably handle the loan payments, and that they have a stable employment situation, which typically means at least two years of steady work in the same field. Most lenders also verify a borrower's assets. It's common for them to look for a certain number of monthly payments in readily available reserves.
As for the second requirement: Your home's value and the amount you want to borrow must make good financial sense to the lender. In most (but not all) cases, lenders want to see that the new loan will produce a maximum loan-to-value, or LTV, ratio of 80%. For example, if your home's appraised value is $200,000, most lenders will refinance a maximum of $160,000.
There are some exceptions, however. Refinancing loans with an LTV of as high as 90% or even higher aren't uncommon, but the borrower will typically need to have top-notch qualifications in order to obtain a refinancing loan like this.
Finally, it's important to point out that refinancing a mortgage is not free. Refinancing loans typically involve closing expenses, such as underwriting and origination fees, just as there would be with a purchase mortgage. Some of our favorite mortgage lenders for refinancing have below-average fees, but refinancing is still likely to cost you something.