You should be able to count from one to five and know how many federal e-files you have used so far--we cannot tell you. if you use up all five, you can print and mail others.
You can use TurboTax Business on the same computer that you installed Home and Business to as long as you have adequate hard drive space, etc. TT Business can only be used on a Windows computer.
https://turbotax.intuit.com/small-business-taxes/
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