I had the same issue and here is the solution. You cannot find your 5 digits filing pin right? This is the only solution that will help you.
You can never find your 5 digits filing code if you don't remember and your tax return will keep rejecting no matter how many times you submit it for filing.
If you have an online IRS account that will help you resolve this issue quickly. To solve this issue you can override the 5 digits filing code by creating a 6 digits IP Pin. To create an IP pin click on the link and enter your ID and password. https://www.irs.gov/identity-theft-fraud-scams/get-an-identity-protection-pin
Your IP pin will be created automatically as soon as you login into your IRS account.
After creating an IP Pin, enter it in Turbo tax in the IP pin section. while for the 5 digits filing you can use any 5 digits this time you want except all zeros.
Remember, an IP pin is used for fraud protection. So you will need to keep the 6 digits IP pin safe and it must be entered on all future tax returns. IRS won't accept future tax returns without entering your IP PIN.
