Dictionary.com
definitions

off-the-books

[awf-th uh-boo ks, of-]
adjective
  1. not recorded in account books or not reported as taxable income.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for off-the-books

Contemporary Examples of off-the-books

  • The largest of these off-the-books obligations have been incurred by local governments and state banks.

    The Daily Beast logo
    China’s Looming Debt Disaster

    Gordon G. Chang

    August 23, 2011