When I did my taxes I forgot to add a number for my bank account

In that case, the IRS will issue you a paper check and mail it to your address on file unless TurboTax imported your direct deposit from last year.  

You can find your bank account and routing number located at the bottom of your 1040 under the Refund section. See if there is an account number there. If there isn't, you will be receiving a paper check. You'll need to download/print your return first.  

First, log into your account.  

1. Once inside, scroll down to the bottom of the screen  

2. On the section, Your tax returns & documents click on Show.  

3. Click on the Year and Click on Download/print return (PDF)