Which Version & Additional Filing Fees for Adult Dependent?

[AJH4]

Summary:  Adult child dependent has own business that will be disregarded entity for federal taxes.  Can I buy one license for Home & Business (instead of Premier)  and then just pay an additional filing fee if he has to file?  Or do I have to buy two versions and licenses? Can you have multiple filers and just pay an additional filing fee under one software license?

Details:  I have used Premier for years and for 2025 have an adult child that will still be a dependent based on income and status in school. Child did not have to file for 2024.  For 2025 child has his own business, but business will likely not generate enough income in 2025 to require filing.  I am willing to buy the Home & Business version to do the taxes correct, but will it allow me to start with one filing for me and then another for him to determine that and if he does have to file use same software and just pay to file?  I can try and figure it out from last year's software without the business part (for example, can I start a return under his name whether I have to pay an additional fee or not).

[xmasbaby0]

When you use desktop download software you can e-file up to five federal returns and their related state returns.  The only "extra" fee is the state e-file fee, which can be avoided if you print and mail the state return instead of e-filing it.

As for your self-employed dependent---if they have even $400 of self-employment income, they are required to file a tax return and pay self employment tax for Social Security and Medicare.   On their own return they must say that they can be claimed as someone else's dependent.

[NCperson]

@AJH4  just so there is no confusion, and your post suggests there is as there no test that combines income and school to determine a dependent.   

There are two flavors of dependents - Qualifying Child and Qualifying Relative.

for the Qualifying Child, if he is a full time student, under the age of 24, lives with your at least half the year (and temporarily away at college still counts as living at home) and provides less than 50% of their own financial support, then he is your dependent.  Note there is no income test. 

For the Qualifying Relative, he can not be a Qualifying Child, he earns less than $5200, and you provide more than 50% of his financial support, he is your depedent.  Whether in school, whether living with you are not tests for the Qualifying Relative who is your child.