Cafeteria 125 plans are covered under Section 125 of the Internal Revenue Code. If you have this pretax benefit on your W-2, in box 14, then you can select New York IRC 125 / Sec 18 if you have a NY employer. However, please note that there are two choices - New York IRC 125 / Sec 18 Subject to NY tax and New York IRC 125 / Sec 18 NY tax exempt.
Generally, cafeteria plans allow employees to set aside pre-tax income for certain benefits. Cafeteria 125 amounts on your W-2 are your pre-tax benefit and are already deducted from your W-2 amounts. These pre-tax benefits aren't subject to federal, Social Security, or Medicare taxes.