Retirement & Taxes

Taxes do not stop when the paychecks do. They change character. In retirement you gain something you never had while working: substantial control over how much income you report in a given year, and therefore over the rate you pay on it.

Your income arrives in three tax buckets

Pre-tax accounts — traditional IRAs and most workplace plans — are fully taxable as ordinary income when withdrawn. Taxable brokerage accounts generate dividends and capital gains, often at preferential rates, and the cost basis comes back to you tax-free. Roth accounts come out tax-free entirely. Which account you draw from in a given year determines your tax bill far more than how much you spend.

Social Security is taxed on a sliding scale

Depending on your combined income, up to 85% of Social Security benefits can be included in taxable income — and none of it may be. Because other withdrawals raise the combined income figure, a single large IRA distribution can pull more of your benefit into the tax base along with it.

Medicare adds a second, invisible bracket

Part B and Part D premiums are income-tested using your return from two years earlier. Crossing a threshold by a single dollar moves you to the next surcharge tier for a full year. Planning income right up to — but not over — a threshold is worth real money.

The window between retirement and required distributions

For many retirees the years after their last paycheck and before Social Security and required minimum distributions begin are the lowest-bracket years of their life. That window is the time to consider partial Roth conversions, to realize long-term gains while the preferential rate may be low, or simply to draw from pre-tax accounts voluntarily rather than being forced to later at a higher rate.

Do not let the account tail wag the plan

Deferring every dollar of tax for as long as possible often creates the largest lifetime bill — a pre-tax balance that keeps compounding until required distributions arrive on top of Social Security and a pension. The goal is not the lowest tax this year. It is the lowest tax across the years you and your heirs will actually pay it.

This article is educational and is not individual tax advice. Thresholds and rates are adjusted regularly; review your own projection with your tax professional.

Common questions

Which account should I withdraw from first?

There is no universal order. The more useful question each year is which bracket you want to fill — then choose the mix of taxable, pre-tax, and Roth withdrawals that gets you there without crossing a Medicare or capital gains threshold.

Do I still need to make estimated tax payments?

Usually yes, unless you have enough withheld from Social Security, a pension, or IRA distributions. Withholding from a year-end IRA distribution is a common way to catch up, because withholding is treated as paid evenly through the year.

Are Roth conversions worth it if I am already retired?

Often, yes — the years before Social Security and required distributions begin are typically the lowest-bracket years available, and conversions in that window can reduce the tax you and your heirs pay later.

Sources

• Social Security Administration — Taxes on Benefits
• IRS — Tax on Early Distributions
• IRS Publication 590-B — Distributions from IRAs