Not only are your mortgage interest payments tax deductible, but so are your refinancing costs. Points can be deducted over the life of your loan. However, there are some restrictions with this program.
Deducting Refinanced Points
When you originally take out a mortgage, you can deduct the points paid the year you take out the home loan. With refinancing, you have to deduct the points over the course of the loan.
So take the point amount paid and divide by the number of payments for the entire loan. A 30 year loan would have 360 payments. For each payment you make that year, you can deduct that amount off your taxes.
If you cash out part of your equity, you can also deduct the points in full that year in certain cases. For example, home improvements meet the IRS