Can user complete form at a later time?

Can a client start completing a form. ... and then go back later to finish it without reentering information?

Hi,

Yes that is possible, you can try either of the following methods listed below:

http://www.jotform.com/features/save-and-continue/ 

http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature 

Do let us know if that works.

Thank you.