If you work for the post office, you're a civil servant. The Civil Rights movement focused on the notion that all American citizens were entitled to the same basic civil liberties.
There is also time limit to consider for sending the amended returns, and it is generally three years from the time you filed the returns or two years after the tax payment (whichever is later). If you plan to amend more than one tax return, you have to file separate 1040X for every one you want to change.
What to keep after filing your taxes and how long. Knowing what information to save and for how long can be confusing. As a general rule of thumb, keep tax returns and related documents for at least three years from the April 15 filing deadline. Three years is also the amount of time you have to amend your return. 2  Four years: Many income-taxing states have an additional year to audit individual returns. 3  Six years: Forms W-2, 1099, etc. because the IRS has six years to contact you if you've failed to report income.