By: CBS News Millions of Americans are eagerly awaiting their second stimulus checks of $600 for each eligible adult and child. The IRS on Tuesday said it had started to distribute the checks via direct deposit that evening, a process that will extend into next week. The tax agency added that it is mailing paper checks on December 30 to people who don't have their bank account info on file with the IRS. But even so, the timeline leaves many people wondering when exactly the check will land in their accounts — especially as the IRS' website for checking one's payment status is unavailable.