The IRS tracks every dollar anyone reported paying you, including Social Security benefits, IRA withdrawals, and interest. If your return doesn't match that list, a computer catches it and a letter ...
The IRS Wage and Income Transcript lists every W-2 and 1099 filed under your SSN, so pulling it before filing can help you avoid CP2000 surprise notices. A missed $8,000 annuity 1099-R can trigger ...