TSP Withdrawal Calculator (2026)

Estimate how long your TSP balance will last and your monthly take-home after taxes.

Withdrawals before 59½ may trigger a 10% federal penalty.
Historical S&P 500 average is ~10%. Conservative: 6-7%.

Your Monthly Take-Home

$0

After taxes and penalties

Balance Duration
0 years
Total Withdrawn
$0
Total Taxes + Penalties
$0

Analysis

TSP Withdrawal Strategies

How you withdraw from your TSP matters as much as how much you save. Common strategies include:

  • Installment Payments: TSP can send you equal monthly payments (fixed amount or fixed period). Easy to set up, automatic.
  • Partial Withdrawals: Take specific amounts as needed. More control, but requires active management.
  • Total Distributions: Take it all at once. Most tax-inefficient unless rolled into IRA.
  • Age-Based Withdrawals: Many retirees take more in early retirement (before Social Security/TSP RMDs) and less later.
  • Roth Conversion Ladder: Convert Traditional TSP to Roth over years to manage tax brackets.

Traditional vs Roth TSP: Tax Impact

FactorTraditional TSPRoth TSP
ContributionsPre-tax (lowers current tax bill)After-tax (no current deduction)
GrowthTax-deferredTax-free
Withdrawals (qualified)Taxed as ordinary incomeTax-free
Early (under 59½)Tax + 10% penaltyEarnings taxed + 10% penalty; contributions withdrawable tax-free
RMDs (age 73+)Required (and taxed)No RMDs during owner's lifetime

2026 TSP Withdrawal Rules

  • Age 59½: No early-withdrawal penalty. Standard income tax still applies to Traditional.
  • Age 73: Required Minimum Distributions (RMDs) begin for Traditional TSP. Roth TSP has NO RMDs during owner's lifetime.
  • 5-Year Rule (Roth): Account must be open 5 years before qualified tax-free earnings withdrawals.
  • SEPP / 72(t): Substantially Equal Periodic Payments allow penalty-free early Traditional withdrawals if structured properly.
  • TSP Loans: Active federal employees can borrow from their own TSP balance (not available after separation).

Common TSP Withdrawal Mistakes

  • Taking it all at once — pushes you into the highest tax bracket. Better to spread over multiple years.
  • Ignoring state tax — most states tax retirement distributions. Plan your residency for retirement.
  • Forgetting RMDs — failing to take RMDs after 73 results in a 25% penalty (down from 50%). Set up automatic distributions.
  • Not having a withdrawal plan — retirees often withdraw too much in early years and run out later. The 4% rule is a starting point, not gospel.
  • Cashing out when changing jobs — if you separate, roll TSP to IRA, don't cash out. Cashing out before 59½ triggers tax + 10% penalty.

The 4% Rule: Is It Still Valid?

The traditional 4% rule (Bengen, 1994) says you can withdraw 4% of your starting balance in year 1, then adjust for inflation, and your money lasts 30+ years. With 2026's longer lifespans and lower bond yields, many advisors now suggest 3-3.5% for safer planning. This calculator shows the math — use the assumed return field to model different scenarios.

TSP-to-IRA Rollovers

When you separate from service, you can keep your TSP or roll it to an IRA. Benefits of rolling to IRA:

  • More investment options: TSP limits you to G, F, C, S, I, L funds. IRAs offer thousands of mutual funds, ETFs, individual stocks.
  • Better withdrawal flexibility: Easier partial withdrawals from IRA than TSP.
  • Consolidation: Combine multiple 401(k)s/TSPs into one IRA for easier management.

Benefits of keeping TSP:

  • Lowest fees in industry: TSP expense ratios are typically 0.04-0.07%, vs 0.5-1.5% for most IRAs.
  • G Fund (government securities): Unique to TSP — protects principal while earning interest.
  • Lifecycle Funds: Pre-built diversified portfolios.

Tax-Efficient Withdrawal Order

For retirees with multiple account types (TSP, IRA, taxable brokerage, Roth), the typical tax-efficient withdrawal order is:

  1. Required Minimum Distributions (Traditional TSP/IRA) — must take these
  2. Taxable accounts (brokerage) — capital gains rates, lower than ordinary income
  3. Traditional TSP/IRA — fill up your target tax bracket
  4. Roth TSP/IRA — last, let it grow tax-free as long as possible

Frequently Asked Questions

How is TSP withdrawal taxed?

Traditional TSP withdrawals are taxed as ordinary income (federal + state). Roth TSP qualified withdrawals are tax-free. Early withdrawals (under 59½) typically incur a 10% federal penalty on top of regular income tax.

What is the TSP early withdrawal penalty?

A 10% federal income tax penalty applies to most TSP withdrawals before age 59½. Exceptions include death, disability, qualifying RMDs, IRS levies, and certain hardship withdrawals.

Can I withdraw from my TSP while still employed?

Generally no, unless you're 59½ or older and separated from TSP-covered employment, or you meet specific hardship criteria. TSP loans are available while actively employed.

What is the 4% rule for TSP?

The 4% rule suggests withdrawing 4% of your TSP balance in year 1 of retirement, then adjusting that amount for inflation each year. Historically this made money last 30+ years. Modern planners often use 3-3.5% for safety.

Should I roll my TSP to an IRA?

It depends. TSP has ultra-low fees (0.04-0.07%) and unique G/L funds. IRAs offer more investment choices and easier withdrawals. Most military retirees keep their TSP for fees, but consolidate other 401(k)s into an IRA.

What are TSP Required Minimum Distributions?

RMDs are mandatory withdrawals from Traditional TSP/IRA starting at age 73 (under SECURE Act 2.0). Failing to take RMDs incurs a 25% penalty. Roth TSP does NOT have RMDs during the owner's lifetime.

Can I do a Roth conversion from my TSP?

Yes. You can move money from Traditional TSP to Roth TSP (or Roth IRA) and pay taxes now in exchange for tax-free growth and withdrawals. This works well in low-income years between retirement and RMD age.

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