Non-Taxable income includes:
Life insurance proceeds.
IRA rollovers (but must be reported on your tax return if you receive a 1099-R).
Child support payments.
Inheritances.
Gifts.
Workers Compensation.
Disability payments. (If you paid the premiums on the policy. If your employer paid the policy, then the disability payments are taxable. If you paid part of the policy, then part of the disability payments are non-taxable).
Damages for personal physical injuries (however, damages for emotional distress are taxable except for related medical expenses).
Health and accident benefits.
Federal income tax refund (also your state income tax refund if you took the standard deduction on the related prior year's 1040.).
Scholarships and fellowships.
Foreign earned income (but still needs to be reported on your tax return).
Foster care payments (certain restrictions for individuals over age 18).
Social security benefits may or may not be taxable (it's a complicated calculation and all need to be reported if a tax return - Form 1099-SSA).
Gain on sale of your personal residence (assuming you qualify for the exclusion).
Roth IRA qualified distributions.
