La réponse courte
$80,000 final salary, 25 years of service, and a 2% multiplier gives $40,000 a year ($3,333.33/month) — a 50% income replacement ratio. Compare that to a $500,000 lump sum offer: invested at 5% and drawn down at the same $3,000/month a competing annuity would pay, it still has $123,219.14 left after 20 years — the annuity would only need to earn 1.84% to match it.
Points clés à retenir
- $80,000 salary × 25 years × 2% = $40,000/year pension, a 50% replacement of final salary.
- With 2% COLA over a 30-year retirement, total benefits paid reach $1,622,723.17 — worth $918,368.69 in today's present value at a 4% discount rate.
- A $500,000 lump sum invested at 5% and drawn at $3,000/month lasts the full 20 years with $123,219.14 to spare.
- La rente impliquait une exigence de rendement de 1,84 % pour correspondre au montant forfaitaire ici – une référence utile pour juger si la rente ou le montant forfaitaire est la meilleure offre.
La formule à prestations définies
Pension annuelle = Salaire final × Années de service × Multiplicateur
= 80 000 $ × 25 × 2 % = 40 000 $/an (3 333,33 $/mois)
That $40,000 is only the starting figure — with a 2% annual cost-of-living adjustment, the benefit grows every year in retirement. Over a 30-year retirement, cumulative payments reach $1,622,723.17, though a dollar received in year 30 is worth much less than a dollar today: discounted back at 4%, the whole stream is worth $918,368.69 in present-value terms — a more honest number for comparing against a lump sum offer.
Capital vs rente : comparer dans les mêmes conditions
A $3,000/month annuity for 20 years (age 65 to 85) pays $720,000 in total — but that total ignores timing and investment growth entirely. Testing the $500,000 lump sum alternative, invested at 5% and drawn down at the same $3,000/month:
Solde forfaitaire après 20 ans de retraits de 3 000 $/mois à une croissance de 5 % : 123 219,14 $ restants
Rendement annuel implicite dont la rente aurait besoin pour correspondre au montant forfaitaire : 1,84 %
Because the lump sum still has money left after 20 years, it effectively "wins" this comparison as long as a 5% return is realistic and sustainable — but that's exactly the risk being taken on: the annuity's income is guaranteed regardless of markets, while the lump sum's outcome depends entirely on actually earning that return and not overspending. The 1.84% implied rate is the break-even bar — below it, the lump sum falls short; above it, the lump sum comes out ahead.
Calculatrices associées
- Calculateur de retraite — combinez une pension avec des économies pour obtenir un revenu de retraite complet.
- Calculateur de sécurité sociale — ajoutez les prestations de sécurité sociale à côté d’une estimation de pension.
- Calculatrice 401(k) — comparer un régime à cotisations définies avec cette pension à prestations définies.