Hello, I did my taxes, but I thought it’s efile, I figured out only now that I have to mail this. Is it too late to mail or I can still do it? Thank you

You can either e-file or mail the tax return.  E-filing a 2018 tax return using TurboTax is available up through October 15, 2019

When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.  See screenshot

This will take you back to the 2018 online tax return.

1. With your return open in TurboTax, click the File tab, then Continue.
2. On the E-file Your Federal Return for FREE screen, select the first option, E-file, then Continue.
3. Select the returns you want to e-file on the following screen and keep following the onscreen instructions.
4. Eventually you'll come to the screen with the Transmit Returns Now button. This will electronically send your return to the government.
5. Finally, watch your email to track the status of your e-filed return.

To mail your tax return use the procedure as shown in this TurboTax support FAQ - https://ttlc.intuit.com/questions/1944348-how-do-i-print-and-mail-my-return-in-turbotax-online