Yes, you can install and activate the same copy of TurboTax on three different computers.
Note: When you activate the same copy of TurboTax on multiple computers, the maximum limit for the total number of tax returns that applies to your copy of TurboTax gets shared among your installations.
For example, if your TurboTax includes 8 paid returns and you already filed 3 returns from one computer and 2 from another, you can only file 3 more returns using the third computer (that is, 8 – (3+2) = 3).
You sure can! TurboTax 2020 software can be installed, authenticated, and activated on up to 5 different computers per the TurboTax Desktop Software End User License Agreement for Tax Year 2020.
In addition to the General License Grant you may: (i) install and use a copy of the Software on up to five (5) computers owned by you (at home or at work); (ii) use the Software only to prepare, print and/or electronically file your federal 2020 tax year returns and related state tax returns as described below; (iii) make one backup copy of the Software for your personal use as permitted under this license grant. Any software that is delivered by electronic transmission (regardless of whether a replacement copy is ordered) shall be deemed delivered on the date that Intuit makes such program available for download.