Transfer tax is collected on the actual consideration paid or to be paid in the deed, unless it is a gift. If the deed is a gift or indicates nominal consideration, the tax is paid on the estimated price the property would bring in an open market. The transfer tax is imposed upon the grantor The tax is computed at the rate of $.50 for each $500 of value or fraction thereof. A deed cannot be recorded unless the real estate transfer tax has been collected. The tax required to be levied by this section shall be collected only once on each transaction and in the county in which the property is conveyed, or the greater part of the property is located. KRS 382.110(1).