Wall Street Journal:
Is a tax sin haunting you?
Maybe you paid a baby sitter under the table, or "forgot" to declare income, or deducted personal expenses as business costs. Perhaps you didn't know a large tax or a form was due and found out only later. Maybe you never filed at all.
Whatever the misdeed, the approach of Tax Day is calling it to mind, raising an urgent question: When can you breathe easy? When is your offense so old and cold that the Internal Revenue Service won't care--or can't?