Annuity

Annuity may refer to:

Annuity (finance theory), any recurring periodic series of payments
Annuity (financial contracts), an insurance-like contract providing annual cash payments
- Annuity (US financial products)
- Annuity (European financial arrangements)
- Life annuity (also single payment annuity), a financial contract providing payments for a person's lifetime
Annuity, a maintenance fee (patent) in patent law.

An annuity that has no definite end is called a perpetuity.