Fees/Expenses associated with acquisition of the property are added to the cost basis of the property. In the case of a refinance you do not have any of these costs since you already own the property prior to the refinance.
Fees/Expenses associated with acquisition of the loan are deductible. For your primary residence they are fully deductible in the tax year you close on the refi loan. For business property, such as rental real estate, they get amortized and deducted over the life of the loan.
