Watch Matthew Lesko get free tax advice from the IRS on the best way to write off your small business on your tax return. You only need 3 easy forms: Form 1040, Form 1040 Schedule C, and Form 1040 Schedule SE.. Call soon if you need help on any tax issue. The closer it gets to tax time the busier they become. I was 12 minutes on hold. But what the heck, a paid professional can cost you hundreds. This is FREE.