As a real estate agent, I normally rebate part of my commission to the buyer at closing.  However, there was one transaction this year that the seller did not allow that, so I gave the money back to the buyer outside of the closing.  For example, I received $3000 commission (on my 1099) and gave $1000 to buyer.  Can I deduct the $1000 as expense?  Is this $1000 taxable income?  If so, who should pay tax on it? ... View more