"Five years have passed and you haven't filed tax returns. You wonder: "will the IRS ever find me?" In the middle of many a night, it crosses your mind. The next week you open a letter from the IRS with palms sweating..."
"You might be the guy who hasn't filed in 30 years: you are strictly a cash-based sub-contractor and not filing forever has you scared. Retirement looms and you have never contributed to Social Security..." What do you do?
Living Abroad and Haven't Filed Tax Returns: A Primer for Expats
Foreign Bank Account Reporting (FBAR): How's it Done? What if you Have Never Filed?