Monies earmarked by health plans to cover anticipated claims and operating expenses A fiscal method of withholding a certain percentage of premium to provide a fund for committed but undelivered health care and such uncertainties as: longer hospital utilization levels than expected, overutilization of referrals, accidental catastrophes and the like. The fiscal method of providing a fund for committed but undelivered health services or other financial liabilities. A percentage of the premiums support this fund. Businesses other than health plans also manage reserves. For example, hospitals document reserves as that portion of the accounts receivables which they hope to collect but have some doubt about its collectability. Rather than book these amounts as income, hospitals will “reserve” these amounts until paid.