How an Ordinary Annuity Works and When Payments Start

An ordinary annuity pays you at the end of each period, not the beginning

An ordinary annuity is a contract where you receive equal payments at the end of each period — monthly, quarterly, or annually. The payment arrives after the period closes, not before it starts. This timing difference matters because it affects how much total money you receive and how the annuity is priced.

The opposite structure is an annuity due, where payments come at the beginning of each period. Insurance companies and financial institutions price ordinary annuities lower than annuities due because they hold your money one extra period before paying you out. That extra time means they earn more interest on the funds.

Ordinary annuities are the standard structure you will encounter. Most pension payments, bond interest, and insurance payouts follow this pattern. When someone refers to "an annuity" without specifying, they usually mean an ordinary annuity.

Key Takeaways

• Ordinary annuities pay you at the end of each period, while annuities due pay at the beginning, which changes the total value you receive.
• The timing difference means an ordinary annuity costs less to purchase than an annuity due with the same payment amount and frequency.
• Most real-world annuities — pensions, bond interest, insurance settlements — are structured as ordinary annuities.
• The payment schedule is set when you buy the annuity and does not change unless you choose a different contract type.
• Calculating the present value or future value of an ordinary annuity requires accounting for when each payment arrives relative to today.

How the payment schedule works in practice

When you own an ordinary annuity, you receive your first payment one full period after the annuity starts. If you buy a monthly ordinary annuity on January 15, your first payment arrives on February 28 or 29. If you buy a quarterly annuity on March 1, your first payment comes on June 30.

Each subsequent payment follows the same pattern: it arrives at the end of the next period. A five-year ordinary annuity with monthly payments means you receive 60 payments, with the last one arriving five years after you purchased the contract. The insurance company or financial institution holds your money during each period and pays interest or investment returns on it before sending your payment.

This structure is why ordinary annuities are cheaper to buy than annuities due. Because the company keeps your money for one extra period before the first payment, they earn returns on a larger balance for longer. That benefit to them translates into a lower purchase price for you.

Ordinary annuity versus annuity due: the price difference

Two identical annuities — same payment amount, same frequency, same length — will have different prices if one is ordinary and one is due. The annuity due costs more because you start receiving money when ready instead of waiting one period.

The difference is not small. For a $500 monthly payment over 10 years at 5 percent annual interest, an ordinary annuity might cost around $57,640, while an annuity due for the same terms might cost around $60,520. The exact difference depends on the interest rate, payment frequency, and contract length, but the annuity due is always more expensive.

If you are comparing annuity quotes from different providers, check whether they are quoting ordinary annuities or annuities due. A lower price might straightforward mean the company is offering ordinary annuity terms, not that their rates are better. The payment schedule should be clearly stated in your contract.

When you might encounter an ordinary annuity

Most pension payments are ordinary annuities. Your employer or pension fund pays you at the end of each month, not at the beginning. Bond interest works the same way — you receive coupon payments after the interest period ends. Insurance settlements structured as annuities typically follow the ordinary annuity pattern as well.

If you purchase an when ready annuity from an insurance company, the contract will specify whether it is ordinary or due. Many when ready annuities default to ordinary structure, but you can usually request annuity due terms if you want payments to start right away. The cost difference will be reflected in the quote.

Deferred annuities — contracts where you do not start receiving payments for several years — are also typically structured as ordinary annuities. The payments begin at the end of the first period after your deferral window closes.

How ordinary annuities affect your cash flow planning

The timing of ordinary annuity payments matters for your monthly budget. If you retire on January 1 and buy an ordinary annuity, you will not receive your first payment until the end of January or February, depending on the payment frequency. Plan for that gap if you are counting on annuity income to cover when ready expenses.

Some retirees coordinate ordinary annuity payments with other income sources to smooth their cash flow. For example, you might use Social Security or pension payments to cover expenses early in the month, then use annuity payments that arrive later to replenish savings or cover larger expenses.

If the timing does not match your needs, an annuity due might work better for your situation, even though it costs more. The extra cost buys you the certainty that money arrives when you need it, rather than forcing you to bridge a gap each period.

The math behind ordinary annuity calculations

Financial professionals use formulas to calculate what an ordinary annuity is worth today or what it will be worth in the future. These calculations account for the fact that each payment arrives one period later than it would in an annuity due.

The present value of an ordinary annuity tells you what all future payments are worth in today's dollars. The future value tells you what all payments will be worth at the end of the contract, assuming they are reinvested at a certain rate. Both calculations are lower for an ordinary annuity than for an annuity due, because the money spends less time growing.

You do not need to do these calculations yourself — insurance companies and financial advisors have software that handles them. But understanding that the timing of payments affects the value helps you compare different annuity offers and understand why one costs more than another.

Ordinary annuities in retirement income planning

Many people use ordinary annuities as part of a retirement income strategy. You trade a lump sum of money today for a stream of may provide payments over time. The insurance company bears the risk that you live longer than expected; you bear the risk that you die sooner and do not receive all the payments.

An ordinary annuity provides predictable income, but it also means you give up access to the principal. Once you buy the contract, you cannot get that money back unless the annuity includes a withdrawal feature or a death benefit. Read the contract terms carefully to understand what happens to your money if you need it before the annuity ends.

Some annuities allow you to choose between ordinary and due payment structures. If you are shopping for an annuity, ask about both options and compare the prices. The choice depends on your cash flow needs and how much you value having money arrive at the beginning of each period versus the end.

Frequently Asked Questions

Why do ordinary annuities cost less than annuities due?

The insurance company holds your money for one extra period before making the first payment, so they earn returns on a larger balance for longer. That financial advantage to them means they can charge you less upfront. The payment amount and frequency are the same; only the timing differs.

Can I change from an ordinary annuity to an annuity due after I buy it?

No. The payment schedule is set when you purchase the contract and cannot be changed. If you want annuity due terms, you would need to surrender the ordinary annuity and purchase a new one, which may trigger surrender charges or tax consequences. Check your contract for details on what happens if you want to exit early.

Does the ordinary annuity payment schedule affect how much I receive total?

The total dollar amount of payments is the same whether the annuity is ordinary or due — if both pay $500 monthly for 10 years, you receive $60,000 total. What differs is when you receive the money and what that timing is worth in today's dollars. The ordinary annuity delivers money later, so its present value is lower.

Are pension payments ordinary annuities or annuities due?

Most pension payments are ordinary annuities. You receive your first payment at the end of the first month after you retire, not on your retirement date itself. Check your pension plan documents or contact your plan administrator to confirm the exact payment schedule for your specific pension.

What happens if I die before receiving all the ordinary annuity payments?

That depends on the contract terms. Some ordinary annuities stop paying when you die, and your beneficiary receives nothing. Others include a death benefit or may provide a minimum number of payments. Read the contract carefully to understand what protection, if any, your beneficiaries have. This is a major difference between annuity types.