Situation Summary: Last year I simulated doing my own taxes by hand but I missed a ton of deductions. Thankfully I go to a CPA who didn't miss them and things were fine.
This year half my annual income is coming from rental properties which are untaxed until I go to my accountant at the end of the year and he tells me how much I need to pay.
Last year I provided my CPA an estimated income statement for 2015. I am skeptical about how much he told me to save so I'd like to try and estimate it myself again this year. Just more accurately.
Problem: I would like a free calculator or resource that will guide me on doing my own taxes this year. To me, because of all the deductions, they seem quite complex. It's a pretty healthy mix of personal earned income from the company I work for, which is taxed. Then a couple rentals.