Has the SEP contribution deadline of April 15th been extended to coincide with the July 15 filing deadline?
Personally, Id file an extension if you want to be sure the SEP date gets extended...I havent heard one way or the other. I'll be filing extensions for my SEP contributors (me included).
Safer than sorry. I'm still doing extensions for this type of client.
Go with the extension. This will allow your client to fund their 2019 SEP up to October, 2020