To provide a rubber composition for tires, which has both of grip performance and durable performance (wear resistance); and to provide a pneumatic tire obtained by using the rubber composition for tires.

The rubber composition for tires includes a rubber component, an acid, a nitrogen compound and a rosin derivative. The rubber composition for tires includes at least one selected from the group comprising natural rubber, isoprene rubber, styrene-butadiene rubber, butadiene rubber and butyl rubber as the rubber component.