Here's what I'm trying to achieve. I live in MA and file taxes there (do two returns). I bought a copy of TTAX on Amazon and installed it on a Win10 PC and downloaded the MA state program. My sister-in-law lives in CA and bought her own copy of TTAX which she subsequently gave to me so that I could help her with her return (she's recently widowed and I've agreed to help her). She gave me her copy of TTAX she also bought on Amazon (so with a separate program key) to use. If I use my installed copy of TTAX then I'd need to buy a 2nd state, CA, to be able to file her taxes. She's already paid for a copy of TTAX which would include a free copy of CA. So I'd like to get the installed copy with MA off my PC.
Regarding "5 is a IRS limit. It knows by many things like your isp, email address, computer IP address etc.". This has me a bit confused. "5 is an IRS limit" Limit per what; maintained by whom? All your examples -- ISP, email address, IP address - are not fixed per a particular PC. If I take my PC to another WiFi network at a friends then the ISP and IP addresses will change. I actually have more than one email and my sister-in-law has her own email address and account with Intuit which I would use for her eFiling. The limit of 5 may be an IRS limit but it looks to me that it is Intuit/TTAX that's actually imposing this limit. If I install two copies of TTAX on two separate computers then there doesn't seem to be anything that would/could prohibit me from eFiling 5 returns on each installed instance. So the limit must be per purchased copy o -TTAX, right? I just need to find a way to remove ALL memory of the 1st purchased copy of TTAX from my PC to be able to start from scratch with the 2nd copy.
