when correcting a W2 do I include all the original amounts along with the corrected amount? The corrected amount is an entry that was left out of Box 12
Are you working for an Employer? Only the Employer would submit corrected W2 and W3.
No had I was just wondering. If someone gives me a W2 C does only the correction show up, or are the original amounts also included?
Here's an image: https://www.irs.gov/pub/irs-pdf/fw2c.pdf
Here are the instructions: https://www.irs.gov/instructions/iw2w3
Only the employer should be updating/correcting those forms.