Tax Form 4137 is used to figure the social security and Medicare tax owed on tips you did not report to your employer, including any allocated tips shown on your Form(s) W-2 that you must report as income. Also, Form 4137 is used to figure the social security and Medicare tips to be credited to your social security record.
You must file Form 4137 if you received cash and charge tips of $20 or more in a calendar month and did not report all of those tips to your employer. You must also file Form 4137 if box 8 of your Form(s) W-2 shows allocated tips that you must report as income.


