TurboTax Easy Extension is not available yet for 2019, that is why you are getting that message. I believe it will be available soon. You can keep checking if you want to use TurboTax Easy Extension.
https://turbotax.intuit.com/irs-tax-extensions/
You can go through your TurboTax program & fill in the form & mail it in.
How do I file an IRS extension (Form 4868) in TurboTax Online?
https://ttlc.intuit.com/community/extensions/help/how-do-i-file-an-irs-extension-form-4868-in-turbot...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
