Do I have to file my taxes to get my 600 stimulus

No - not your 2020 tax return, as long as you filed your 2019 return.

Your payment will be issued based on the information the IRS has on file for your 2019 tax return.  If you did not file a 2019 return, the IRS will use information gathered from the Non-Filers: Enter Payment Info Here tool on their website for the first stimulus payment.  They will also use information provided by a Federal Agency that issued benefits to you (Social Security Administration, Veteran Affairs, or Railroad Retirement Board).

If you didn't provide information on the IRS website or do not receive benefits from Social Security, etc. you will not automatically receive the stimulus payment(s).  If you do not receive a payment, you can make an adjustment on your 2020 tax return for stimulus payments you qualify for, but have not received. 

To do this in TurboTax, please follow these steps:

1. Enter the information in your return.
2. Click Federal Review at the top of your screen. 
3. On the screen, Let's make sure you got the right stimulus amount, click Continue.
4. You will be asked about the amounts of first round and second round stimulus payments you received. 
5. TurboTax will then calculate the amount of stimulus payment remaining that you are still entitled to.  This will show as a credit on line 30 of the 1040.