Businesses Can Round Cash Transactions to Nearest Nickel
Businesses accepting cash payments can voluntarily round transactions up or down to the nearest nickel due to the penny shortage caused by discontinued U.S. Mint production. Rounding policies must be disclosed clearly and conspicuously before customers incur charges.
Sales tax must be calculated on the actual purchase price before rounding and remitted as required. Businesses paying Corporation Business Tax or Gross Income Tax must use exact accounting when determining gross receipts or total income. Rounding up creates additional income; rounding down reduces the gross receipt figure.
The Division of Consumer Affairs provides a sample notice businesses can display. Businesses can create their own notices if they clearly describe their rounding policy.
https://nj.gov/treasury/taxation/businesses/salestax/cash-rounding-guidance.shtml