How do I download my federal tax forms that I just submitted through turbo tax free version?

To save and download a PDF of your tax return, see How do I save my 2019 TurboTax Online return as a PDF?

To save and download your .txt file of your return, see How do I save my TurboTax Online return as a tax data file?

If you want to print out your TurboTax Free version income tax return, follow these instructions: 

1. If you're not already in your return, sign in at TurboTax.com and open or continue your return.
2. Select Tax Tools and then Print Center from the left menu (on mobile devices, tap in the upper left corner to expand the menu).
3. Select the first option, Print, save, or preview this year's return and follow any additional instructions.
   • If you're using a free version with no add-on fees, you'll be asked to register first.
4. Once your PDF opens in Adobe Acrobat Reader, select the printer icon near the top.
5. Make any adjustments in the Print window and then select Print at the bottom.

Source: TurboTax FAQ