Penalty Explantion - Can't enter enought text!

[DaxPagan]

In TurboTax 2025 Desktop, I'm trying to enter an explanation about why I am requesting a waiver for a penalty due to omitting one of my estimated tax payments.  I composed an explanation that's about six sentences, totaling 888 characters (156 words).  When I try to paste it in, I get an "Invalid Entry" error.  when I tried entering it sentence by sentence, some of the sentences are accepted and others generate the same "Invalid Entry" error.  What's causing the error?  Is is the length of the text entry?  Something else?

[JohnB5677 · Accepted solution]

The  estimated size of the explanation box is 160 charaters,(not words).

• As an alternative you can use the "Forms Mode" in the desktop version to enter the explanation, or 
• If that is not enough, to print and mail the return with a separate, attached statement.