The deduction on your tax return would be the same whether you're on the loan jointly or not. Also, you can Quit Claim his name on immediately after closing. Depending on Real Estate law in Jersey City that may also protect your house in case of law suits if you take title by Tenency in Entirety. Again, I do not know if you use lawyers in your state for Real Estate closings but if you do ask them to handle it. If you Quit Claimed your husband on that means he is on title but not on the mortgage. This mortgage will not help be on his credit report.