NIM18070 - Class 1B NICs: Liability: Calculation: Rounding

Regulation 41 of the Social Security Contributions Regulations 2001 (SSCR 2001) (SI 2001 No 1004)

When working out the amount of Class 1B due the rounding rules are as follows:

• amounts of ½ pence or less are ignored
• other fractions need to be rounded up to the next penny.