Annuity

1. A series of equal future periodic cash flows, starting at Time 1 and ending at a predetermined future Time n.
2. More generally, any series of future periodic cash flows, either equal in amount or growing at a fixed compound rate per period, starting at a future time or already in payment, and usually ending at a later future time.
3. Any financial arrangement in which a periodic income is paid to an individual, often as a pension.
4. An insurance contract purchased from a life assurance company that pays an income in exchange for a lump sum.

There are many variations on such annuities, depending on the nature of the income stream.

See also

• Annuity due
• Annuity factor
• Annuity formula
• Annuity ordinary
• Pension
• Perpetuity
• Purchased annuity
• Simple annuity