• Social Security Numbers for all members of the family
• W-2s for self and spouse
• All 1099 forms received
• Home purchase, sale and improvement documentation
• Medical expenses
• Mileage driven to receive medical services
• Charitable contributions
• Expenses you had to pay as an employee (uniforms, mileage, dues, etc.)
• Mortgage interest paid
• Tax preparation costs paid, safety deposit box fees paid, any other "miscellaneous deductible" items.

BUSINESS

• Record of all income, including 1099 forms received
• Business travel records and amount spent
• Auto mileage records including mileage log and auto expenses paid
• Amount spent for your meals in the course of business (along with who you were with and what you did)
• Records and amounts for any assets you purchased and sold
• If your business is in your home, records of repairs, rent, utilities and other payments made for the whole house AND those specifically for your office space
• Bank charges
• Interest paid on business expenses