As noted below, the penalty for filing late is a percentage of the tax owed with the return. And even 100 percent of $0 is $0. However, this might not be the case for state taxes. That's not to say there aren't very good reasons for filing on time.
Latin Meaning: The name Felicity is a Latin baby name. In Latin the meaning of the name Felicity is: From 'felicitas', meaning happiness or good luck. A popular 16th century Puritan virtue name. Famous bearer: British actress Felicity Kendal.
Delaney /de-la-ney/ [3 sylls.] as a girls' name (also used less regularly as boys' name Delaney) is pronounced da-LAY-nee. It is of Old French origin, and the meaning of Delaney is from the alder grove. From del aunaie. Also possibly (Irish, Gaelic) offspring of the challenger or angel from heaven.