Have you filed your 2019 or 2018 tax return and was direct deposit information included on the tax return?
If so and that is still the correct bank account, you don't need to do anything.
If you didn't need to file a return, you can use this link to provide the IRS the banking information: https://turbotax.intuit.com/stimulus-check/
If you filed a tax return but there was no direct deposit information on it or the bank account has changed, you will need to wait for the IRS to open an online portal for you to enter that information. See this: https://www.irs.gov/newsroom/economic-impact-payments-what-you-need-to-know
Thanks for the info.
I read somewhere though if you had Turbo Tax take their fee from your return then it goes to a third-party bank then sent to you by Turbo Tax. According to what I've read, this may cause a problem because the IRS check wasn't directly deposited into your count. Therefore, your stimulus check would be mailed.