Tax Bracket Implications of Leaving Federal Service

Leaving federal service in any year, whether by choice or not, can significantly change your tax situation compared to other working years.

During most of a federal career, income is predictable. A salary arrives on a consistent schedule. Tax withholding is steady. Retirement contributions move quietly into the Thrift Savings Plan (TSP).

However, the year in which an individual separates from federal employment— due to retirement, resignation, or workforce reduction—frequently disrupts this pattern.

Income can arrive unevenly, in addition to a temporary drop in earnings. Others receive large one-time payments from unused leave or severance.

That unusual pattern can change a person’s tax bracket for a single year. And occasionally, it creates a planning opportunity that doesn’t exist during normal working years.

Why the Separation Year Is Different

For many federal employees, the year they leave service contains a mix of income sources that rarely appear together again. 

Those may include:

• Final paychecks
• Lump-sum payments for unused annual leave
• Severance pay
• Early pension income
• TSP withdrawals
• Income from a new private-sector job

The timing of these sources may result in their receipt in different tax years or, in some cases, not at all during the year of separation.

Sometimes, an individual who usually earns $120,000 may report much lower taxable income after leaving federal service because their next job has not yet begun.

The 22% federal tax bracket covers taxable income up to $206,700 for married couples filing jointly in 2026. For many mid-career federal employees, that means a temporary drop in income could place them in a lower bracket than they typically occupy.

That temporary shift can open a short planning window. 

A Real-Life Example

We recently had a former federal employee who worked for more than two decades. In his early 50s, he separated from government employment unexpectedly. After his final federal paycheck and a payout for unused leave, he took several months to evaluate his next career move.

During tax season, he noticed something he didn’t think of at first. Due to his lack of employment, his taxable income that year was significantly lower than it had been in previous years. 

But there was some good news. 

We shared that he had an opportunity to plan in a way that had valuable tax benefits. This client held a large balance in his Traditional TSP account. Like most traditional retirement accounts, that money would eventually be taxed when withdrawn.

Because his taxable income that year was lower, he converted a portion of his retirement savings into a Roth account.

The conversion created taxable income for that year, but it was taxed at a lower rate than he expects to face later in his career. This move will allow a portion of his retirement savings to have tax free growth potential rather than tax deferred. 

Why This Matters for Former Federal Employees

Many federal employees build substantial retirement savings in Traditional TSP accounts.

Traditional contributions reduce taxes while someone is working, but the tradeoff is that withdrawals later in life are taxed as ordinary income.

That becomes especially relevant in retirement.

A federal retiree’s income might eventually include:

• A FERS or CSRS pension
• TSP withdrawals
• Social Security benefits
• Possibly private-sector income after leaving government

When those sources combine, they can push taxable income higher than many people expect.

In fact, Social Security benefits themselves can become taxable depending on income levels. The IRS allows up to 85% of Social Security benefits to be taxed when combined income crosses certain thresholds.

For some retirees, that means income drawn from traditional retirement accounts later in life may be taxed at higher rates than anticipated.

Converting some of that money earlier, like our client did during a lower-income year, can change that long-term picture. Recognizing this time as a planning opportunity can bring back real savings. 

Not the Right Strategy for Everyone

Roth conversions aren’t automatically the right move.

They depend on several factors, including:

• Current tax bracket
• Expected future income
• Retirement timeline
• Long-term estate goals
• The size of existing retirement accounts

Conversions also increase taxable income in the year they occur, which means they must be evaluated carefully.

But separation years deserve special attention because they often look very different from typical earning years. Sometimes those differences create short windows where thoughtful planning can make a meaningful impact.

Why Coordination Matters

This is where the collaboration between a CPA and a financial planner becomes particularly valuable. 

A CPA typically focuses on preparing tax returns and ensuring compliance with tax rules.

A financial planner focuses on long-term strategy: retirement income, investment planning, and withdrawal sequencing.

When those perspectives work together, the conversation shifts from simply filing taxes to actively managing them.

For example, a CPA might identify that someone’s taxable income in a separation year falls well below their usual bracket.

A financial planner might then ask:

“How much room exists in the current bracket before income moves into the next one?”

Together, they can determine whether converting a portion of retirement savings that year makes sense. That coordination might allow someone to convert tens of thousands of dollars at a lower tax rate than they would face later.

Over decades of retirement withdrawals, the difference can be significant.

Look Beyond the Job Change

When people leave federal service, most of the attention understandably focuses on the career transition.

Where will the next job come from?
When will retirement begin?
How will income change?

Those are important questions.

But it can be just as important to look at what has changed in the tax landscape.

Occasionally, those changes reveal planning opportunities that only exist for a short period of time. The year someone leaves federal service may look unusual on a tax return.

And sometimes, that’s exactly what makes it valuable.

Content in this material is for general information only and not intended to provide specific advice or recommendations for any individual. 

This information is not intended to be a substitute for individualized tax advice. We suggest that you discuss your specific tax situation with a qualified tax advisor. 

Traditional IRA account owners have considerations to make before performing a Roth IRA conversion. These primarily include income tax consequences on the converted amount in the year of conversion, withdrawal limitations from a Roth IRA, and income limitations for future contributions to a Roth IRA. In addition, if you are required to take the required minimum distribution (RMD).

Neil Cain is a certified financial planner with Capital Financial Planners. If you don’t feel confident in your current or future retirement withdrawal strategy and would like feedback, you can register for a complimentary Retirement Readiness Meeting. For topics covered in even greater depth, see our YouTube page.