Retirement can feel wonderfully simple until you ask one practical question:
Where should my income come from each month?
For federal employees, the answer may involve a FERS pension, Social Security, FEHB in retirement, personal savings, and the Thrift Savings Plan. If you have both a Traditional TSP and a Roth TSP, you also have an important planning choice: which account should you use first?
There is no universal answer. The right TSP withdrawal strategy depends on your age, tax bracket, income needs, account balances, health care costs, beneficiaries, and retirement timeline.
For a personalized federal benefits review, you can schedule an appointment with Federal Benefits Service.
Traditional TSP vs. Roth TSP: What’s the Difference?
The biggest difference is when you pay income taxes.
Traditional TSP
Traditional TSP contributions are generally made before federal income taxes are paid. This may reduce your taxable income while you are working.
When you withdraw money from the Traditional TSP, distributions are generally taxed as ordinary income. A large withdrawal could increase your taxable income and potentially move more of your income into a higher tax bracket.
Traditional TSP basics include:
- Contributions are generally made with pre-tax dollars.
- Withdrawals are generally taxable as ordinary income.
- Required minimum distributions, or RMDs, generally apply to the Traditional TSP.
- Employer matching contributions are generally deposited into the Traditional balance, even when you contribute to Roth TSP.
Roth TSP
Roth TSP contributions are made with after-tax dollars. You pay income taxes on the money before it enters the account, but qualified withdrawals of contributions and earnings are generally tax-free.
Roth TSP basics include:
- Contributions are made with after-tax dollars.
- Qualified withdrawals are generally tax-free.
- Roth TSP balances are not subject to lifetime RMDs under current rules.
- Withdrawals may still have tax consequences if they do not meet applicable qualification requirements.
The Roth TSP can be valuable because it gives you a source of retirement income that generally does not add to your taxable income when withdrawn correctly. But that does not automatically make it the best account to use first.
Why Your TSP Withdrawal Order Is Not One-Size-Fits-All
It is tempting to look for a simple rule:
- Use Traditional TSP first.
- Use Roth TSP first.
- Split everything evenly.
Each approach can work in the right situation: and create problems in the wrong one.
Your federal retirement income plan may already include several types of income:
- A FERS pension
- Social Security
- A FERS annuity supplement, if eligible
- Traditional TSP withdrawals
- Roth TSP withdrawals
- Taxable investment income
- Part-time employment income
- A spouse’s income or retirement accounts
The question is not simply, “Which TSP account is better?” The better question is:
How can each income source work together over the rest of your retirement?
Four Common TSP Withdrawal Strategies
1. Traditional TSP First
Some retirees begin with Traditional TSP withdrawals while leaving Roth TSP assets invested.
This can make sense when:
- Your current tax bracket is relatively low.
- You want to use lower-tax years before required minimum distributions begin.
- You expect to have higher taxable income later.
- You want to preserve Roth assets for later retirement or heirs.
However, withdrawing too much Traditional TSP money too early can create unnecessary taxes. It may also increase the taxable portion of Social Security or affect Medicare-related costs in future years.
2. Roth TSP First
Using Roth TSP money first may help limit taxable income during a particular year. It can be useful when you are trying to stay within a tax bracket or avoid creating a large taxable event.
This approach may also preserve Traditional TSP funds for later expenses or required minimum distributions.
But Roth TSP assets are often among the most tax-flexible assets in a household. Spending them too quickly could reduce your future flexibility and leave you with more taxable assets later.
3. Proportional Withdrawals From Both
A retiree may withdraw from the Traditional TSP and Roth TSP in a planned percentage.
For example, a monthly withdrawal might include:
- A taxable portion from the Traditional TSP
- A tax-free portion from a qualified Roth TSP withdrawal
This can create a balance between current income and tax management. It also allows both account types to remain part of the long-term plan.
The challenge is that the percentages should be based on your actual tax situation: not simply an arbitrary 50/50 split.
4. Use Other Assets Before or Alongside the TSP
Some federal retirees use cash savings, taxable brokerage accounts, certificates of deposit, or other assets before drawing heavily from the TSP.
This may allow the TSP to remain invested longer. In other cases, using taxable assets first may create capital gains or reduce liquidity that you may need later.
There is no automatic “best” account to spend first. The decision should consider taxes, investment risk, cash reserves, and how long each account may need to last.
Tax Planning Factors Federal Employees Should Consider
Your FERS Pension and Social Security
A FERS pension provides a recurring income stream, but it is generally taxable at the federal level. Social Security may also be partly taxable depending on your total household income.
That means your tax bracket may already be partly filled before you withdraw a dollar from the TSP.
You should also consider when to claim Social Security. Delaying benefits may increase future guaranteed income, but it could require more TSP or personal savings in the meantime.
FEHB in Retirement and Medicare Costs
FEHB in retirement is an important part of your monthly budget. Premiums, deductibles, prescription costs, and supplemental coverage can all affect how much income you need from the TSP.
Traditional TSP withdrawals generally increase taxable income. That may affect Medicare Part B and Part D income-related premium adjustments in future years. Qualified Roth TSP withdrawals generally do not create taxable income, but your overall household income still matters.
Survivor Benefits and Beneficiaries
A FERS survivor benefit may reduce the retiree’s monthly pension in exchange for continuing income for a spouse after death. That decision should be coordinated with TSP withdrawals, life insurance, and beneficiary designations.
Your TSP beneficiary form is also important. It may determine who receives the account, regardless of what your will says. Review your beneficiaries after marriage, divorce, the death of a beneficiary, or a major family change.
For help organizing these moving parts, book a personalized federal benefits review.
Roth TSP Five-Year and Age Rules
Roth TSP withdrawals require careful attention to qualification rules.
In general, Roth earnings are tax-free only when a distribution is qualified. Qualification typically requires both:
- You are at least age 59½, disabled, or deceased, as applicable; and
- The applicable five-year holding period has been satisfied.
The five-year clock is generally tied to the year you first made a Roth TSP contribution, but individual circumstances can vary. A newer Roth TSP balance may not be fully qualified just because you have reached age 59½.
Also, separating from federal service may affect whether the 10% early-withdrawal penalty applies. For example, the age-55 separation exception may help some employees who leave service during or after the year they turn 55. This is separate from the income-tax rules.
Because TSP and IRS rules can change, verify your situation with current TSP withdrawal guidance and qualified tax advice before taking a distribution.
Required Minimum Distributions and Future Tax Rates
Traditional TSP owners generally must begin taking required minimum distributions at the applicable age. Under current rules, many people begin at age 73, while some younger birth groups may have a later starting age.
RMDs are generally calculated using your Traditional TSP balance and IRS life-expectancy tables. Roth TSP balances are generally not subject to lifetime RMDs under current SECURE 2.0 rules.
This creates a planning opportunity. Some retirees may choose to make measured Traditional TSP withdrawals before RMDs begin, especially during years when their taxable income is lower.
Others may prefer to preserve Traditional TSP funds and use Roth or taxable assets instead.
The key issue is uncertainty. Future tax rates may be higher, lower, or similar to today’s rates. No one can guarantee the outcome, so flexibility is often more valuable than making an extreme decision based on a prediction.
A Hypothetical Example: Two Federal Retirees
The following example is hypothetical and does not promise results.
Retiree A is a 60-year-old FERS employee with:
- A larger Traditional TSP balance
- A smaller Roth TSP balance
- A moderate FERS pension
- Several years before claiming Social Security
- A need for additional monthly income
Retiree A might consider taking a measured amount from the Traditional TSP while staying within a chosen tax bracket, then using Roth TSP funds selectively for larger expenses. This could help avoid spending the Roth balance too quickly while managing taxable income.
Retiree B is a 67-year-old federal employee with:
- A smaller Traditional TSP balance
- A larger, qualified Roth TSP balance
- Social Security already in place
- A pension that covers most essential expenses
- A desire to leave assets to heirs
Retiree B might use qualified Roth TSP funds for occasional large expenses and limit Traditional TSP withdrawals to the amount needed for living costs or future RMD requirements.
The same withdrawal order would not necessarily make sense for both retirees. Their account mix, guaranteed income, age, tax bracket, and goals are different.
Could Phased Retirement Help?
Phased retirement for federal employees may be a possible transition strategy for some eligible workers.
Rather than moving directly from full-time employment to full retirement, an approved phased retirement arrangement may allow an employee to work part time while receiving a partial retirement annuity. This can provide continued income while the employee tests a retirement budget and learns how much income is actually needed from the TSP.
Phased retirement is not available to everyone. It has separate eligibility, application, and agency-approval requirements. It also does not eliminate the need to coordinate your pension, TSP, Social Security, FEHB, taxes, and investment plan.
For some employees, however, the transition can provide valuable information before making permanent retirement decisions.
A Practical TSP Withdrawal Planning Checklist
Before choosing an account or setting up monthly withdrawals, review:
- Annual spending: Separate essential expenses from discretionary spending.
- Guaranteed income: Estimate your FERS pension, Social Security, and other recurring income.
- Tax bracket: Identify how much taxable income you already expect.
- Cash reserves: Keep an appropriate emergency and near-term spending reserve.
- Account types: List Traditional TSP, Roth TSP, taxable accounts, IRAs, and other assets.
- RMD timeline: Confirm when required distributions may begin.
- Beneficiaries: Review TSP, pension, FEGLI, and other beneficiary designations.
- Withdrawal flexibility: Plan for travel, home repairs, health care, and family support.
- Market risk: Consider how withdrawals during a downturn could increase sequence-of-returns risk.
- Inflation: Make sure your income plan can adapt as everyday expenses rise.
Common TSP Withdrawal Mistakes
Avoid these common errors:
- Withdrawing too much too early
- Ignoring the tax impact of Traditional TSP withdrawals
- Assuming Roth TSP is always the best account to use first
- Overlooking beneficiary designations
- Failing to coordinate TSP withdrawals with a FERS pension and Social Security
- Forgetting FEHB and Medicare-related costs
- Selling investments after reacting to a market headline
- Treating a withdrawal plan as permanent when your needs may change
A thoughtful plan can be adjusted as your health, spending, tax law, investment performance, and family situation change.
The Bottom Line
The best TSP withdrawal strategy is usually not Traditional first or Roth first. It is the strategy that coordinates your account types with your full federal retirement picture.
That includes your FERS pension, Social Security timing, FEHB in retirement, taxes, RMDs, market volatility, inflation, survivor benefits, and legacy goals.
Federal Benefits Service can help you organize these questions through a personalized benefits review. The review is educational and designed to help you better understand your options; it is not a substitute for individualized tax, investment, legal, or professional advice.
Before acting, verify current rules with the TSP, IRS, OPM, and Social Security Administration. When appropriate, work with qualified tax, investment, benefits, and legal professionals.
Ready to take the next step? Book your federal benefits review today and start building a retirement income plan that fits your life.
