Salary:

2018: $6.6M
2019: $6.7M
2020: $6.8M
2021: $7.0M
2022: $7.2M
2023: $7.3M
2024: $7.4M

Buyout:

2018: $6M
2019: $6M
2020: $4M
2021: $3M
2022: $2M
2023: $1M
2024: 0

Note: he'll also receive a light Delta Jet for up to 25 hours of personal use per year:

http://www.onlineathens.com/sports/20180511/details-of-kirby-smarts-new-deal-with-georgia-revealed