Do I have to add another line of work to my self-employeed taxes for my personal business if I am also a teacher and already filed my taxes with my husband.

[AnnetteB6]

If you have already file a joint tax return with your spouse, but you need to add information about your self-employed business, then you will need to file an amended tax return to add Schedule C for your self-employed business.

If your business is not a sole-proprietorship, but it is instead an S-Corporation, C-Corporation, or a partnership, the you would file a separate tax return for the business (using TurboTax Business)and then amend your joint personal return to report the information from your K-1.  

See the following TurboTax article for steps to amend your return:  How do I amend my 2019 TurboTax Online return?

@whetstinesister