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Returning Member

Error code 603 - not allowing 3rd computer

Just purchased TurboTax 2020 Standard Edition (for up to 8 returns). I installed it successfully on computers 1 and 2, but when I tried entering my license code on computer number 3, it give error code 603 saying license is only valid for 3 computers! Why can't I use it on the 3rs computer when I'm allowed 3?

3 Replies

Error code 603 - not allowing 3rd computer

For more assistance with this issue, please contact us by phone. To talk to our phone support team, visit https://support.turbotax.intuit.ca/contact/ . After entering some basic info about what you need help with, the page will give you the phone number for the team best suited to help.

New Member

Error code 603 - not allowing 3rd computer

I got the same issue

Bob Brown
New Member

Error code 603 - not allowing 3rd computer

I am in disbelief at the ridiculously poor service of Turbo Tax for Business 2020.  I went to support chat and got a ticket number, then waited several minutes to speak to a human.  I pointed out that the software has asked me over and over again to input the key, that it now says I have registered it on five computers, and that in actuality it has only been installed on one computer.  One.  EVER.

The Turbo Tax Support team told me that Turbo Tax Business is "Self Support".  They refused to even TRY to help me.  This is INTUIT.  UNREAL.


As I write this, it is 5 days till the tax deadline, and all my work is locked up inside a software bug.  I will have to purchase the software again for $140 plus tax if I want to file.  Terrible customer service.  Simply awful.  Couldn't be worse.  It will be a cold day in hell before I use Turbo Tax again after this year, and I am already planning to move BOTH my installs of Intuit Payroll to another company.  I have NEVER had a national vendor spit in my face this way.