Definition of oncost in English:

oncost

noun

British
  • An overhead expense:

    ‘safety equipment is usually regarded as an oncost’
    • ‘Fixed charges usually known as shop expenditure and establishment expenses or shop oncost and office oncost, are apportioned to the various jobs.’
    • ‘Jenkinson recommends the use of a work in process account that includes prime costs only, oncost was only added in the sales journal at the time of sale.’

Pronunciation:

oncost

/ˈɒnkɒst/