If my sister and I filed for a dba together where I get 90% and she gets 10% who files for the taxes?

[VolvoGirl]

Whoever wants to file the Partnership return.  Then you will each get a K-1 to enter into your personal returns.  You should have an accountant or tax place to file it at least the first year so it gets done.  

You need Turbo Tax Business.  It  is a separate program from Home & Business.  It is not available to do online or on a Mac.  It will not do your personal 1040 return.  You can have both Turbo Tax Business and a personal version (like Home & Business) installed at the same time.

You can buy the Window's Business Desktop program here…..

https://turbotax.intuit.com/small-business-taxes/cd-download/

[mgarry3416]

So your DBA business requires a separate tax return.  It sounds like with you splitting the profit with your sister that you have a partnership.  It also could be a S Corporation operating as a partnership.  So you (the DBA partnership) will need to file a Form 1065 Partnership return for both the Federal and State returns.  Both are due March 15 of each year.  Part of the return is the Schedule K and Schedule K1.  You and your sister would get a Schedule K1 to report the profit from your business dba. 

Now who is required to file the partnership return?  That is usually addressed in the partnership agreement.  Depending on the size of your business, you may want to talk to a tax professional.  Unlike a Schedule C business for self employed individuals, you business return will also have a balance sheet and other business related forms.  Your business may also be subject to other state and local taxes. 

I hope this answers your question.  It appears that you were thinking that you or your sister would have to file something like a Schedule C on your return.  As you can see its a little more complicated.  My advise is if the person who helped set up your DBA business is not a tax expert that to go to a tax business for help.  They may want to file an extension for your DBA and your personal returns.   

[dmertz]

"It also could be a S Corporation operating as a partnership."

That's a misstatement.  An S-corp and a partnership are two different types of entities.  A business can't be both.  Participants in a S-corp are shareholders, not partners.  Unless the business applied for and was granted S-corp status, it's a partnership.

[mgarry3416]

Well I am a member of an S Corp that operates as a partnership.  I depends on how the business was set up.  So I stand by my statement.  

We did not get much information from the question.  Only that its a DBA and one sister gets 90% and the other gets 10%.  As a partnership they would file  Form 1065.  

An S Corp operating as a partnership would also file Form 1065.  

The BDA could be a partnership or an S Corp.  

[dmertz]

"An S Corp operating as a partnership would also file Form 1065."

An S corp must file Form 1120-S.

https://www.irs.gov/businesses/small-businesses-self-employed/s-corporations

To operate as a partnership and file Form 1065, the business that had made the S corporation election would have to revoke the S corporation election.

Perhaps what you have is an LLC operating as a partnership, not an S corp operating as a partnership.