Tatis deal breakdown.
According to Mark Feinsand of MLB.com, the salaries breakdown as followed: 2021: $1 million, 2022: $5 million, 2023: $7 million, 2014: $11 million, 2025-26: $20 million, 2027-28: $25 million, 2029-34: $36 million.
So basically they are saving quite a bit of money during his peak years before he gets really expensive around age 30.