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How Retirement Income is Taxed

June 24, 2026

Taxes in Retirement: What Every Retiree Needs to Know

One of the biggest misconceptions about retirement is that your taxes automatically disappear once you stop working.

While many retirees find themselves in a lower tax bracket than during their working years, retirement doesn't mean the IRS stops collecting taxes. In fact, many retirees are surprised by how much of their retirement income is taxable.

Between Social Security benefits, retirement account withdrawals, pensions, and investment income, retirement taxes can be more complex than many people realize.

The good news is that understanding how retirement income is taxed allows you to make proactive decisions that may help reduce taxes and improve your overall retirement plan.

Let's take a closer look at how taxes work in retirement and what you can do to prepare.

Why Retirement Taxes Can Be Complicated

During your working years, most of your income comes from a paycheck. Taxes are generally withheld automatically, making the process relatively straightforward.

In retirement, your income may come from several different sources, including:

  • Social Security

  • Traditional IRAs

  • 401(k) and 403(b) plans

  • Roth IRAs

  • Roth 401(k)s

  • Brokerage accounts

  • Pensions

  • Part-time employment

The challenge is that each of these income sources is taxed differently.

Understanding those differences is essential for effective retirement planning.

Traditional Retirement Accounts Are Taxable

Many retirees are surprised to learn that withdrawals from traditional retirement accounts are generally taxed as ordinary income.

This includes:

  • Traditional IRAs

  • Traditional 401(k)s

  • Traditional 403(b)s

When you contributed to these accounts, you likely received a tax deduction. In exchange, the IRS taxes the money when it comes out.

For example, if you withdraw $40,000 from your traditional IRA, that $40,000 is generally added to your taxable income for the year.

Many people spend decades building large retirement account balances but forget that a portion of those savings ultimately belongs to the IRS.

Social Security May Be Taxable

Another common misconception is that Social Security benefits are always tax-free.

In reality, depending on your income, up to 85% of your Social Security benefits may be subject to federal income tax.

The more income you receive from sources such as:

  • IRA withdrawals

  • Pension income

  • Part-time employment

  • Investment income

the greater the likelihood that a larger portion of your Social Security benefits will become taxable.

This often catches retirees off guard because they assume their monthly Social Security checks won't affect their tax return.

Required Minimum Distributions (RMDs)

As retirees age, another tax consideration comes into play: Required Minimum Distributions (RMDs).

Once you reach the applicable RMD age, the IRS requires you to withdraw a minimum amount from most pre-tax retirement accounts each year.

These withdrawals are generally taxable as ordinary income.

Even if you don't need the money, the IRS still requires the distribution.

The larger your traditional retirement account balance, the larger your RMD may be, potentially increasing your taxable income later in retirement.

Pension Income Is Usually Taxable

If you're fortunate enough to have a pension, it's important to understand its tax implications.

In most cases, pension payments are fully taxable as ordinary income.

This means pension income can increase your overall tax liability and may also affect how much of your Social Security benefits become taxable.

Pensions can be an excellent source of guaranteed retirement income, but they should still be incorporated into your overall tax planning strategy.

Brokerage Accounts Offer Tax Flexibility

Unlike traditional retirement accounts, brokerage accounts receive different tax treatment.

When you withdraw money from a brokerage account, not every dollar is automatically taxable.

Typically, taxes are owed only on the investment gains when securities are sold.

Additionally, long-term capital gains often receive favorable tax treatment compared to ordinary income tax rates.

This can make brokerage accounts a valuable source of retirement income and provide flexibility when managing your tax situation.

Roth IRAs Can Be Extremely Tax-Efficient

Roth IRAs are often considered one of the most tax-efficient retirement accounts available.

Because contributions are made with after-tax dollars, qualified withdrawals are generally completely tax-free.

This means you can withdraw both contributions and earnings without paying federal income tax, provided certain requirements are met.

Another advantage is that Roth withdrawals generally do not increase the taxation of Social Security benefits.

For many retirees, Roth accounts can serve as a valuable tool for managing taxable income throughout retirement.

Retirement Income Can Affect Medicare Premiums

Many retirees don't realize that higher income can impact Medicare costs.

Large IRA withdrawals, Required Minimum Distributions, pension income, and other sources of income may increase Medicare Part B and Part D premiums.

This is due to a provision known as the Income-Related Monthly Adjustment Amount (IRMAA).

Crossing certain income thresholds can result in higher Medicare premiums, making tax planning even more important.

The Value of Tax Diversification

One of the best ways to prepare for retirement taxes is through tax diversification.

This means building assets across multiple tax categories:

Tax-Deferred Accounts

  • Traditional IRA

  • Traditional 401(k)

  • Traditional 403(b)

Tax-Free Accounts

  • Roth IRA

  • Roth 401(k)

Taxable Accounts

  • Brokerage accounts

Having multiple account types provides flexibility when creating retirement income.

Instead of being forced to withdraw from a single source, you can strategically choose where your income comes from each year, helping you potentially manage tax brackets, Social Security taxation, and Medicare premiums more effectively.

Final Thoughts

Retirement does not mean your taxes disappear.

Understanding how various income sources are taxed can help you make smarter financial decisions before and during retirement.

The more proactive you are with retirement tax planning, the more flexibility you'll have when it comes time to generate income from your savings.

By understanding the tax treatment of retirement accounts, Social Security benefits, pensions, brokerage accounts, and Medicare premiums, you'll be in a much better position to keep more of what you've worked so hard to save.

If you'd like help creating a retirement income strategy or understanding how taxes may affect your retirement plan, consider working with a financial professional who can help you build a strategy tailored to your goals.