If you owe money to the IRS, a bill may be coming your way soon. As a result of office closures due to the COVID-19 crisis, the IRS had been unable to mail some previously printed “balance due” notices. But the notices will be delivered to taxpayers in the next few weeks as IRS operations continue to reopen, according to the tax agency. An insert in the notice will provide an extended due date of either July 10 or July 15. Taxpayers with questions about their balance due should visit the website supplied in the mailing or call the phone number provided. IRS phone lines remain extremely busy.