Americans want their stimulus cash. And starting today, it may be available to them. While a lot of people will gain access to their stimulus funds today, those who aren't eligible for direct deposit may need to sit tight a few more weeks. As was the case with the last two stimulus rounds, stimulus payments that go out by mail will take longer because the IRS can only issue so many at a time. Those waiting on a check or debit card may not see their money until some point in April, and that timeline could even extend into May.