Retirement Income Planning: Can an Annuity Fill Your Income Gap?

If your paycheck stopped next month, which bills would your existing income cover, and which would depend on selling investments or drawing down savings?

That is a useful starting point for retirement income planning. A large account balance can feel reassuring without showing whether your monthly budget works. Conversely, a modest balance may support a workable plan when reliable income already covers most essential spending.

An annuity may help with a persistent shortfall, but the size and timing of that shortfall should come first. This article walks through a hypothetical household budget, explains where a contract might fit, and shows why taxes, inflation, and access to cash belong in the same calculation.

Build the spending plan before choosing a product to fund it.

Begin with the cost of ordinary life

Write down expenses such as housing, food, utilities, transportation, healthcare, insurance and other costs that you cannot avoid. Do not use an average that you remember from the past; use statements that are recent. Add up annual expenses and spread them out over the year, and differentiate between regular expenses and big purchases that happen from time to time.

Next look at areas that you can temporarily cut down on expenses that you can, like travel or entertainment. Activities are important, but without a distinction between essential costs and the activities that can be supported from that income, there is no indication of the need to strengthen income support. It also ensures that a retirement income calculator does not make the assumption that all dollars spent are rigid.

Don’t overlook the changes retirement itself can bring. This may lead to a reduction in commuting expenses, but an increase in medical premiums or costs for home maintenance or for extended family. Avoid general statements and substitute them with figures wherever possible, leaving a “place” for uncertainty.

Put spending and income on the same basis

The following table refers to an imaginary family. All income figures are net of estimated taxes and deductions and comparable to cash spent. These numbers are an example of what might be quoted to you by an insurer or suggested in your budget, but may not be your actual quotes.

An illustrative monthly income-gap calculation.

Monthly item	Amount
Housing	$1,700
Food	$650
Utilities and communications	$350
Transportation	$350
Healthcare	$500
Total essential spending	$3,550
Social Security received	$2,500
Pension received	$550
Total existing income	$3,050
Essential income gap	$500

The arithmetic is straightforward: $3,550 minus $3,050 leaves $500 a month uncovered. That equals $6,000 annually. If there is a desire to spend $650 per month for flexible items, then the total desired spending is $4,200 and the overall gap is $1,150.

These are two separate goals. Paying the bills can’t pay for what you want to do. If the figures are both visible it is easier to make a decision about which needs may be worth contractual income and which may be met through investment and/or flexible expenditure.

Check what your existing benefits can provide

Make sure to review Social Security claiming options and other pension options before purchasing extra income. According to the Social Security Administration, if someone continues to work past their full retirement age (FRI), their benefit will be increased with delayed credits being received until FRI age 70.^[1]

That isn’t necessarily good reason for anyone to delay. The decision will be influenced by health, immediate cash needs, spouse benefits and savings. However, making that comparison is worthwhile before thinking that only a commercial contract can boost future income.

If either the pension pays a one-time lump sum or a monthly payout, make sure to compare the full details before you forego the monthly payment stream. Retirement payouts decisions are especially challenging, given consumers’ need to integrate other factors into their overall retirement planning, such as longevity, fees, and payment options, which are all consumer-related issues explored in the CFPB’s consumer work.^[2]

Map the months before every payment begins

Retirement often does not turn all the income streams on at once. One partner may cease to work before the other or a pension may begin later, or there may be a period of transition with temporary earnings. Put those dates on a monthly timeline before treating today’s shortfall as permanent.

For the example household, assume that the $550 pension is delayed for six months. At that time, necessary expenditures of $3,550 for Social Security and $2,500 for essentials result in a monthly shortfall of a $1,050. Other changes would add another $8,000 to that six-month period. The regular essential gap at the beginning of the pension is $500.

That distinction matters. If guaranteed retirement income is used as a solution for a short-term need, it could represent an additional cost that the budget does not need. Likewise, if you fail to account for transition, you may not be ready by the time payment begins to flow. Check the first date to be paid; check when the funds will be in your bank account; and check what resources you will have to fill the waiting period. They can frequently only be seen in a calendar, not in an annual total.

Identify the role of an income annuity

An income annuity is a type of annuity that provides a lump sum upfront in exchange for a series of payments starting at some point in the future. The payments can be made for one life, two lives or for a specific amount of time depending on the contract. This configuration can either be exactly what it answers to the gap that you have identified or not.^[3]

In the case of the fictional household, a conversation could be about paying off part or all the $500 balance needed for the basic deficit. The other might think about payments beginning after temporary employment income has stopped. These are planning questions and not amounts to be allocated.

Get quotes on the same date with the same coverage and payments and beneficiaries. If this is not the case, then the higher quotation payment could mean less benefits. Also determine if the premium is still available once the payments start and what would happen if the covered person died prematurely.

Compare spendable payments, not headline amounts

Quotes are likely to be offered before taxes. Your budget is rarely. Some or all of a payment could be subject to tax, depending on the terms of the funding source and the distribution of the payments. However, qualified Roth distributions and other scenarios can be handled differently, so assumptions must be verified.^[4]

To simplify, assume the fully-taxable payment is $600 per month and the household saves 20% for taxes. It would leave $20 of the original essential gap unfilled (gap 1) while covering $480 (gap 2). This is an arithmetic example which is not an estimate of any one’s tax rate.

The teaching point is to compare like quantities. Record each gross payment, estimated tax and expected net cash as a separate line item. Do not use the payment to make a recurring commitment without consulting a tax professional to look at the numbers in conjunction with other income.

Give inflation its own line in the plan

Social Security benefits received a 2.8% cost-of-living adjustment for 2026. While that adjustment is helpful, it should be noted that not all retirement sources will increase in the same manner and not all monthly bills will increase at the same rate.^[5]

The level insurance payment can stay the same, as your expenses increase. The $3,550 monthly household expenditure would rise by an assumed 3% each year and would be approximately $4,771 10 years later. Thus, the gap of today and even potential gaps should be tested in your plan.

This could involve keeping growth assets, choosing contractual increases if such options are available, or re-evaluating the level of FSA. Each involves trade-offs. A set payment will not necessarily permanently resolve a budget that is sensitive to price increases.

Keep accessible money outside the contract

A guaranteed retirement income will not cover all the inconsequential bills in a calendar year. Payment in full may be needed if there is a problem with the heating system, if they move or someone helps them, etc.

Make sure you have a handle on the role you’re taking on before investing dollars. To put into perspective, how much would the essentials cost the example household over six months? $21,300. This is a calculation and not the standard recommendation for reserves, as there are other resources, health, housing, and obligations.

There are some deferred contracts which permit a limited pullback for no surrender fee, but the amount and terms are different, and taxes could still apply. There may be far less access through income contracts. Adopt a different mindset when designing a reserve, instead of thinking of it as an emergency savings account.^[6]

Test the plan for both partners

For couples, calculate the budget again after either partner dies. Other costs reduce, but housing and many other costs stay the same. Social Security and pension benefits can also be adjusted. Two people’s budget is not necessarily a survivor’s budget.

Verify the chosen survivor percentage for any payout of insurance. Find the likely expenses of the survivor and other income, and make up an effective comparison. If there’s a large gap later in time, it may not be a good deal to pay a bit more initially.

Also documents account locations, contact information, and contract instructions. The individual handling the monetary affairs today could not necessarily be the one to do so in the future. If an arrangement is communicated in writing, everything is easier to maintain in cases of difficulty.

Turn the calculation into a reviewable decision

From a retirement income planning perspective, there are a few numbers that carry meaning: the amount needed for essential expenses, the amount available for flexible expenses, net income, the shortfall, and the reserve amount available. A retirement income calculator can be used to assign the constituents, but what it produces is as a result of what you put in it.

Ask Money Man 4 Integrity to discuss potential options against that written budget. Ask for similar payment illustrations, the complete withdrawal conditions and an explanation of what risks are still present. Separate guaranteed amounts from projections.

Re-evaluate the plan as changes happen and periodically. While an annuity can be part of a very specific need, the household plan should still be responsible for making the product choice. The goal is dependable spending capacity, with enough flexibility left for real life.

General education only; not individualized financial or tax advice. Guarantees depend on the issuing insurer’s claims-paying ability and the applicable contract terms.