How Advances Can Add Predictability to an Uncertain Spring The IRS calendar is predictable. Real estate income isn’t.  The harsh reality of that financial tension hits home every spring. Just when agents are entering the busiest stretch of the year, they have to reckon with not only the previous year’s taxes, but also the first quarterly tax bill of the current year. For most real estate agents, the obligation can be substantial. The self-employment tax alone is 15.3 percent, representing the Social Security and Medicare contributions employers normally share with …