Tax Guide Revise and Refile with IRS Form W 2C Everyone makes mistakes! The IRS W 2c form helps you correct the errors you might have made on your W2. This tax season we are bringing you a quick ... Tax Guide Correcting Mistakes with a W-2C W-2C sounds like a type of motor oil. But it’s actually a form used by the IRS to correct any mistakes an individual may find on the W-2 forms ...