If you already have a pension, you probably do not need an annuity, but the honest answer to the question “do I need an annuity if I have a pension” depends on whether your pension actually covers your essential expenses, keeps up with inflation, protects your spouse, and comes from a plan you trust to keep paying. A pension and a commercial annuity solve the same problem: guaranteed lifetime income. Buying both only makes sense when the pension leaves a specific, identifiable gap.
The useful way to approach this is to stop asking whether annuities are good or bad in general and start asking what your pension does not do.
Does Your Pension Actually Cover Your Essentials?
Start with arithmetic. Pull your benefit statement, find the gross monthly payout, and subtract what you will owe in federal income tax. Pension income funded entirely by employer contributions is fully taxable as ordinary income.1 For 2026, federal brackets range from 10% on the first $12,400 of taxable income for a single filer up to 37% above $640,600. Most retirees land in the 12% or 22% bracket, but pension income stacked on Social Security and required minimum distributions can push you higher than you expect.
Then compare that after-tax number against your fixed monthly obligations: housing, property taxes, insurance, groceries, utilities, and healthcare. Healthcare takes a bigger bite than most people plan for. The standard Medicare Part B premium for 2026 is $202.90 per month, up from $185.00 in 2025.2Medicare 2026 premium announcement If your modified adjusted gross income tops $109,000 as an individual or $218,000 filing jointly, the income-related monthly adjustment amount (IRMAA) can push your Part B premium as high as $689.90 per month, with a separate surcharge on Part D.3IRMAA 2026 brackets
Now look at the gap. If a household needs $4,500 a month and the after-tax pension delivers $3,200, that is $1,300 a month of guaranteed income you do not have. That gap, if it exists, is the strongest reason to consider an annuity. If the pension covers 100% of fixed obligations, the case weakens sharply, because other savings can handle discretionary spending without needing to be converted into a second guaranteed check.
Watch the RMD Trap Before You Decide
Required minimum distributions from traditional IRAs and 401(k) accounts begin at age 73 and are taxed as ordinary income.4IRS RMD age under SECURE 2.0 Dropped on top of pension income and Social Security, they can push you into a higher bracket and trigger the IRMAA surcharges above. Running the numbers before 73, and considering Roth conversions in lower-income years, often matters more to a pension holder’s bottom line than any annuity decision.
The Four Gaps an Annuity Can Fill
If the pension does not cover essentials, or has one of the structural weaknesses below, an annuity may earn its place.
Inflation
Most private-sector pensions pay a fixed dollar amount with no cost-of-living adjustment. Federal pensions (FERS and CSRS) and some state plans do include inflation increases, but if you draw from a corporate pension, assume the check stays flat. At 3% average annual inflation, a $2,000 monthly pension loses roughly half its purchasing power over 25 years. By year 20, that $2,000 buys what about $1,100 buys today.
Some commercial annuities offer inflation-linked riders or built-in annual increases, typically 2% to 3% per year. The trade-off is a lower starting payment. An annuity with a 3% annual increase might start 20% to 25% below a flat payout bought with the same premium. If the annuity is filling a gap in essentials, the inflation protection usually matters more than the higher opening check.
Survivor Income
Federal law requires most pension plans to offer a Qualified Joint and Survivor Annuity as the default. Under 26 U.S.C. § 417, the survivor benefit must be between 50% and 100% of the amount paid during the participant’s life, and a participant can waive the QJSA for a higher single-life payment only with the spouse’s written consent.526 U.S.C. § 417 QJSA requirements
The 50% survivor option is where households get hurt. If the full pension is what pays the taxes and the mortgage, a 50% cut after one spouse dies can create real hardship. The 100% survivor option fixes this but reduces the monthly payment, often by 10% to 15%. One alternative: take the higher single-life or 50% survivor pension payment and buy a separate annuity payable to the surviving spouse. Compare the annuity premium against the lifetime income difference between the 50% and 100% survivor options before deciding. Funding the annuity from non-retirement money avoids creating a taxable event out of an IRA or 401(k) withdrawal.
Longevity and RMDs Through a QLAC
A Qualified Longevity Annuity Contract is a deferred annuity funded with traditional IRA or 401(k) money. The amount you commit is excluded from your RMD calculations until payments begin, which can be as late as age 85. For 2026, the maximum QLAC premium is $210,000 across all eligible accounts.62026 QLAC premium limit
For a pension holder with a large traditional IRA, a QLAC does two things. It shrinks taxable RMDs in the years you do not need the money, which can keep you below IRMAA thresholds. And it creates a second guaranteed income stream that kicks in during the later years of retirement, exactly when inflation has done the most damage to a flat pension.
Employer Solvency and the PBGC Cap
If a private-sector pension plan fails, the Pension Benefit Guaranty Corporation steps in. For 2026, the PBGC’s guarantee cap is $7,789.77 per month ($93,477 annualized) for a 65-year-old receiving a straight-life annuity, or $7,010.79 per month under a joint-and-50%-survivor option.7PBGC 2026 maximum guaranteed benefit If your benefit sits below the cap, you are covered in full. If it sits above, the excess is at risk if the plan fails.
Government and church plans are not covered by the PBGC. If you have a state, municipal, or church pension, your protection depends on the financial health of the sponsor itself.
Commercial annuities carry a different backstop: state life insurance guaranty associations. Baseline coverage for annuity benefits under the NAIC model is $250,000 per owner, per insurer, with some states offering up to $500,000.8NAIC model guaranty act coverage If you buy an annuity large enough to exceed that limit, splitting the premium between two highly rated insurers keeps each contract within the cap. Look for financial strength ratings of A+ or higher from AM Best or equivalent. The guaranty association is a last resort, not a first line of defense.
When an Annuity Is Redundant
If your pension fully covers fixed expenses, includes a COLA or is paired with COLA-adjusted government pension or Social Security income, provides adequate survivor benefits, and comes from a well-funded plan under the PBGC umbrella, your guaranteed income base is already solid. Buying an annuity on top of that converts flexible, growing savings into another fixed check you do not need. Additional savings in that situation are usually better deployed in a diversified portfolio that offers growth and liquidity, neither of which an annuity provides once the premium is paid.
What an Annuity Actually Costs
Fees vary enormously by product type, and this is where a well-intentioned purchase can quietly destroy the income it was supposed to provide.
A Single Premium Immediate Annuity has the simplest cost structure. The insurer’s margin is baked into the payout rate, and there are no ongoing fees. You pay the premium, you receive a monthly check, and the insurer keeps whatever investment return exceeds what they owe you.
Variable annuities are the opposite. They stack mortality and expense charges (typically 0.15% to 1.50% of account value annually), administrative fees (0.10% to 0.30%), subaccount management fees (0.10% to 1.50%), and optional rider costs for lifetime income guarantees (0.50% to 1.50% or more). Total annual costs can easily reach 2.5% to 3.5%. For someone who already has guaranteed income from a pension, paying that much for a second layer of guarantees rarely pencils out.
Deferred annuities also carry surrender charges on early withdrawals above a specified amount. A typical schedule starts at 7% in year one and declines about one percentage point a year, reaching zero after seven or eight years. Most contracts allow penalty-free withdrawals of up to 10% of account value each year, which means 90% is effectively locked up during the surrender period. Keep enough liquid savings outside any annuity to handle a large repair or long-term care expense without triggering those charges.
Lump Sum vs. Monthly Pension vs. Commercial Annuity
If your pension offers a lump sum option, the comparison becomes three-way: take the monthly pension, take the lump sum and invest it, or take the lump sum and buy a commercial annuity. The math turns on the interest rates used to calculate the lump sum against current annuity payout rates.
Pension lump sums are calculated using IRS-mandated segment rates. For plan years beginning in 2026, those rates range from roughly 4.75% for the first segment to 5.74% for the third segment.9IRS 2026 segment rates for pension lump sums When those rates are high, lump sums shrink relative to the monthly pension, which makes the monthly pension the stronger deal in most cases. When rates drop, lump sums grow and the comparison tightens.
As a benchmark, a 65-year-old male purchasing a life-only Single Premium Immediate Annuity can currently expect roughly $7,800 per year in income for every $100,000 of premium, and a 65-year-old female roughly $7,500 due to longer life expectancy. Convert your pension’s monthly option to an annual figure and compare. If the pension’s annual payout exceeds what a commercial annuity would deliver for the same lump sum, stay with the pension. The PBGC backstop adds another point in the pension’s favor unless your benefit exceeds the guarantee cap.
The honest test is not whether an annuity sounds attractive. It is whether your pension, after taxes and Medicare premiums, covers what you actually spend, keeps up with prices, protects your spouse, and comes from a plan that will still be paying in twenty years. Where the answer to all four is yes, an annuity adds cost without adding much. Where any one is no, that specific gap is what an annuity is for.