Like almost every president who preceded him, Lincoln's actions at the time were somewhat controversial. Some of his most controversial decisions might actually be considered now to be abuses of the Presidential power.
When you find that you need to amend a tax return, you need to make sure the statute of limitations on filing one hasn't run out. The statute of limitations, or time allowed for the action, on getting a refund from an amended tax return is three years.
How long will it take to process my amended tax return? A Form 1040X-Amended Tax Return can take up to 16 weeks to process once the IRS receives it. It can take up to three (3) weeks from the date you mailed it to show up in our system.