The average amount of money left by the Tooth Fairy in 1900 was 12 cents. According to a recent survey in January 2019, the average payout for a tooth from the Tooth Fairy is around $4.00 for children who are 6-12 years old. The price per tooth has gone down by about 50 cents since last year. Most parents answered by saying they gave $20.00 for the first tooth to celebrate the milestone and after that, each tooth was priced between $4.00 to $5.00.