A roll-up rate in an annuity is a guaranteed annual percentage increase the insurance company applies to a separate internal figure inside a deferred annuity — usually tied to an optional living benefit rider such as a Guaranteed Lifetime Withdrawal Benefit. That figure, called the benefit base, is not your cash. It exists only to calculate the lifetime income the contract will eventually pay you. Because the roll-up raises the benefit base at a fixed rate no matter what markets do, it sets a floor under your future retirement income.
Two Values Inside One Contract
Every annuity with a roll-up rider tracks two numbers side by side. The account value is the real money — it moves up and down with your subaccounts or index credits and is what you’d walk away with if you canceled the contract, minus any surrender charges. The benefit base (sometimes called the income base) is a shadow ledger that only moves in one direction: up, at the roll-up rate you locked in at purchase.
This gap between the two is where most misunderstandings begin. A roll-up might push the benefit base to $250,000 while your surrenderable cash sits at $180,000. You cannot withdraw the benefit base as a lump sum. The only way to realize it is to convert it into a lifetime income stream through the rider. The insurer also uses the benefit base to calculate the annual rider fee — more on that below.
How the Roll-Up Is Calculated
The annual increase is applied one of two ways, and the choice matters over long deferral periods.
Simple Interest
A simple roll-up bases every year’s increase on your original deposit. Invest $100,000 at a 7% simple roll-up and the benefit base grows by exactly $7,000 every year. After 10 years it reaches $170,000.
Compound Interest
A compound roll-up applies the rate to the current benefit base, prior increases included. Same $100,000 and 7% rate: year one adds $7,000, year two adds $7,490, and after 10 years the benefit base sits at roughly $196,700 — about $26,700 more than the simple version. Stretch that to 15 or 20 years and the gap widens sharply.
Step-Ups and Ratchets
Many contracts add a step-up (or ratchet) on top of the roll-up. On each contract anniversary, the insurer compares your actual account value to the current benefit base. If the account value is higher because markets performed well, the benefit base steps up to match, and future roll-up increases run from that new, higher figure. The roll-up protects against losses; the ratchet locks in gains.
When the Roll-Up Stops
The guaranteed increases don’t continue forever. Every contract sets an ending trigger, and some set more than one.
Most riders run the roll-up for 10 to 20 years from your initial deposit. Others cap it at an age — commonly somewhere between 80 and 85. Some use both and end the roll-up at whichever comes first.
The roll-up also stops the moment you activate the income rider and begin taking lifetime withdrawals. Buy an annuity at 55 with a 10-year roll-up, and the benefit base stops growing at 65 whether you turn on income then or not. Delaying withdrawals past that point won’t add more roll-up growth, though it can qualify you for a higher payout percentage.
Some insurers offer to renew the roll-up after the initial period, but usually at a much lower guaranteed rate, and the rider fee may reset at that time as well.
How the Benefit Base Turns Into Income
When you switch on the income stream, the insurer multiplies your final benefit base by a payout percentage tied to your age at that moment. Older ages get a higher percentage because the expected payment period is shorter. A typical schedule looks roughly like this:
- Age 60: around 4% of the benefit base per year
- Age 65: around 5%
- Age 70: around 5.5%
- Age 75: around 6%
- Age 80: around 7%
These figures vary by carrier and are locked into your contract when you buy. A $300,000 benefit base at a 5% age-65 payout produces $15,000 a year for life. Wait until 75 and qualify for 6% on the same base, and you’d get $18,000 a year.
Once payments start, they continue for life even if the actual account value eventually falls to zero from market losses, withdrawals, and fees. That guarantee is the whole point of the rider.
What Excess Withdrawals Do
Taking more than the guaranteed annual withdrawal amount can permanently damage the benefit base, and the damage isn’t dollar-for-dollar. Most contracts reduce the benefit base proportionally.
Here’s how the math works. The insurer divides the excess withdrawal by your contract value just before the withdrawal, then reduces the benefit base by that same percentage. Say your contract value is $200,000 and your benefit base is $300,000, and you take $20,000 more than the allowed amount. That excess is 10% of the contract value, so the benefit base drops by 10% — from $300,000 to $270,000. A $20,000 excess withdrawal cost you $30,000 of benefit base. Because the benefit base is typically higher than the contract value, these reductions hit harder than they look.
Required minimum distributions from an annuity held inside an IRA are usually excluded from the excess-withdrawal calculation. Any other withdrawal above the guaranteed amount triggers the proportional cut.
What the Roll-Up Costs
The guaranteed growth is not free. Annual rider fees for a GLWB typically run from about 0.95% to 1.40%, on top of the annuity’s other charges such as mortality and expense fees and any subaccount management fees.
There’s a wrinkle worth understanding. The rider fee is calculated as a percentage of the benefit base (the higher figure) but deducted from the account value (the lower figure). As the roll-up widens the gap between those two numbers, the fee takes an increasingly large bite out of your real cash. In flat or down markets, that drag can accelerate the depletion of the account value.
The guarantee still holds — if the account value hits zero, the insurer must keep paying the lifetime income. But you may reach that point with no cash left to withdraw as a lump sum or leave behind.
What Your Heirs Get
The benefit base is not an inheritable asset. If you die before or during the income phase, beneficiaries generally receive the actual contract value or a separate death benefit, not the inflated benefit base. Some contracts guarantee heirs at least the total premiums paid, but that figure is usually far below the benefit base after years of roll-up growth. If leaving money behind matters alongside guaranteed income, you may need a separate death benefit rider, which carries its own fee.
How the Income Is Taxed
Once lifetime payments start, each one is split for tax purposes: a portion is treated as a tax-free return of your original investment, and the rest is taxed as ordinary income. The IRS uses an exclusion ratio — your investment in the contract divided by the expected total return — to set the tax-free share, and that ratio holds until you’ve recovered your full original investment, after which every dollar becomes fully taxable.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
Withdrawals taken from a non-qualified annuity before you activate the income rider work differently: they come out earnings-first and are fully taxable as ordinary income until all the gain has been withdrawn.2Internal Revenue Service. Publication 575, Pension and Annuity Income And distributions taken before age 59½ are generally subject to an additional 10% tax on the taxable portion, with limited exceptions.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
Reading Your Contract
The roll-up rate, its calculation method, the duration or age cap, the payout percentages by age, the rider fee, and the excess withdrawal formula all live in the rider endorsement attached to your annuity contract. Marketing brochures summarize; the endorsement binds. Before you buy, read those exact figures, and confirm which numbers apply to your money and which apply only to the benefit base.