Which Box 12 Code represents medical savings account contributions?

The correct choice representing medical savings account contributions is indicated by the letter "M" in Box 12 on the W-2 form. This code is specifically used for contributions made to a Medical Savings Account (MSA), which is designed to help individuals save for medical expenses while offering tax benefits. MSA contributions can be made by both employers and employees and are intended to encourage savings for healthcare costs.

Understanding Box 12 codes is crucial for accurately reporting income and benefits on W-2 forms. Each code serves a specific purpose, providing the IRS with information on various types of compensation and benefits that might not be categorized elsewhere. In this case, the letter "M" signifies that the amounts reported are for medical savings accounts, clearly differentiating it from other types of codes within Box 12.

While the other options would correspond to different types of benefits or contributions—such as retirement plans or other specified employee advantages—only "M" identifies contributions related specifically to medical savings accounts. Hence, it is essential to refer to the correct Box 12 code to ensure accurate tax reporting and compliance.