If you are fully vaccinated, you’ll no longer need to take a COVID-19 test after you arrive. You’ll still have to complete a Passenger Locator Form (PLF) in the 48 hours before travelling to Scotland.
It is advisable that you have proof of vaccination if you intend to visit certain venues such as sports stadiums or nightclubs.
If you’re not fully vaccinated, you’ll need to take a COVID-19 test before travelling to Scotland, complete a Passenger Locator Form (PLF) and take a PCR test on or before day 2 after you arrive.
Read more on the Scottish Government website