Infinity Data Systems today announced the release of SimpleBooks Pro 1.0, a full-featured Business Management & Payroll application for Mac OS X and Windows. Building on the success of SimpleBooks, SimpleBooks Pro goes beyond invoice & billing to become a full-featured business management application. It adds a Ledger, Supplier Management and Purchase Orders. SimpleBooks Pro also offers full-featured Payroll capabilities, including the ability to calculate Federal Income Tax, FICA, FUTA, Medicare, State Income Taxes, SUTA, SDI (where applicable), Local Taxes and Benefits. In addition, SimpleBooks Pro also allows you to account for AEIC payments (Advanced Earned Income Credit). SimpleBooks Pro also includes support for Daily, Weekly, BiWeekly, SemiMonthly and Monthly pay schedules, as well as support for the standard 0-10 withholding allowances. SimpleBooks Pro is priced at US$19.95, and a free demo is available.