I used to install the software on multiple different servers I had around the world that used to work to submit more than 5. I submit about 30 peoples taxes every year and I can tell you 100% it is NOT a government enforced limitation. Besides a small handful of business taxes I submit all of the easy to do tax returns on the government web sites themselves from one PC. This is a money grab from Intuit to get you to buy licenses for more than one PC. This only stopped working on Turbotax last year so they must have added a security key to "how many e-filed" lookup before you can submit with their software.
