When I filed my income tax I didn't put in all my income What do I need to do?

[linspiser]

I needed to add 1099 income   How can I change my income now?

[Texas Roger · Accepted solution]

Once you submit your return to TurboTax for efiling, it is just like dropping your return in the mailbox--you can't get it back. If the IRS rejects your return, you can make the changes, fix the reason for the rejection and resubmit it. 

If the IRS accepts your return, you should wait until you receive a refund (if you are getting one) and then you can prepare, print, sign, and mail an amended (changed) return form 1040X to make the changes. Form 1040X is estimated to be available in TurboTax on3/7/19 but the date has changed several times. Do not change your original return until you begin the amended return. You will no doubt owe some or all of your refund back to the IRS when you file your amended return. 

If the 1099-MISC was for self employment income, you must pay 15.3% self employment tax on it in addition to ordinary income tax. If you had expenses associated with your self employment income, you will have to upgrade to Self Employed to enter those expenses.