The typical IGA Retail Assistant makes $19 Per Hour. Retail Assistant hourly pay at IGA can range from $13 - $25. This estimate is based upon 9 IGA Retail Assistant salary report(s) provided by employees or estimated based upon statistical methods. When factoring in bonuses and additional compensation, a Retail Assistant at IGA can expect to make an average annual salary of $39,900 . See all Retail Assistant salaries to learn how this stacks up in the market.