In general, you should file W2C form to correct the error on your W2C form. You may also need to file W-3C correction form.

I am not sure which field you entered the wrong information. I would like to suggest you contact SSA local office for more instructions. They can give you the best answer.

If you need to print W2C and W3C form, you can use ezW2Correction software. ezW2Correction is approved by SSA to print W2C and W3C on white paper.

ezW2Correction software
http://www.halfpricesoft...ftware_free_download.asp 

Please feel free to contact us if you have any question.

Thank you.

Casey

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I used your 1099/W2 product for 2014 and I just realized I made a mistake on the W2. I only create one W2 for my business. What should I do?

Peggy