Any time you give something of value that exceeds $14,000 during the course of the year, you have made a taxable gift to your brother. This includes adding his name to your deed. If he does not pay you anything to be added to the deed, then you have made a taxable gift. As a result, you will need to file a federal gift tax return on IRS Form 709 in order to report the taxable gift to the IRS.
