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Annuity due

An annuity due makes each equal periodic payment at the start of a period rather than the end. Its present value equals the ordinary annuity PV multiplied by (1 + r), as every flow is discounted one fewer period.

ByHoang TruongUpdated

FrameworkTime value of money

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An annuity due pays at the start of each period instead of the end, so every cash flow is discounted one fewer period. A five-year ordinary annuity worth €48,000 at 5% becomes an annuity due worth €48,000 × 1.05 = €50,400 — the same payments, just timed one period earlier.

Where it fits
TopicTime Value of MoneyAdvancedSubjectCorporate FinanceAdvanced

The formula

LaTeX
PV=C×1(1+r)nr×(1+r)PV = C \times \frac{1-(1+r)^{-n}}{r} \times (1+r)

Variables

present value of the annuity-due stream
equal payment made at the start of each period
discount rate per period (expressed as a decimal)
total number of payment periods

Multiply the ordinary annuity PV by (1 + r) to shift each cash flow one period earlier. Lease agreements and insurance premiums commonly follow this pattern.

LaTeX
FV=C×(1+r)n1r×(1+r)FV = C \times \frac{(1+r)^n - 1}{r} \times (1+r)

Variables

future value of the annuity-due stream at the end of period n
equal payment made at the start of each period
interest rate per period (expressed as a decimal)
total number of payment periods

Because each payment compounds for one extra period compared with an ordinary annuity, the FV is also multiplied by (1 + r).

Check yourself

PracticeCORE

A five-year equipment lease requires payments of €12,000 at the start of each year. The relevant discount rate is 8 per cent. Which expression gives the present value of these payments, and why does it differ from an ordinary annuity?

Select an answer to check your understanding.
Annuity due — Edlintics Glossary