Last updated: January 08 2013
Even though proprietors and their spouses have until June 15 to file their returns before late filing penalties kick in, it makes sense to file by midnight April 30 with all other taxfilers to avoid interest charges if you have a balance due.
If you can’t file by April 30 and you will owe, at least pay the estimated tax by that date. File earlier to recover your tax refunds as quickly as possible.