He can file a 2022, 2023 and a 2024 tax return that includes a tax refund. For tax year 2021 it is now beyond the three year limit for filing a tax return with a tax refund.
To complete and file a 2022 and 2023 tax return using TurboTax you would need to purchase, download and install on a personal computer one of the desktop editions for each tax year required from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
A 2022 and 2023 tax return can only be printed and mailed, they cannot be e-filed using TurboTax. Use a separate envelope for each tax year being mailed.
