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FERSFree Federal Retirement Planning FERSFree Brief: Federal & Military Retirement, Simplified

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How Much Do You Need to Retire as a Federal Employee?

One of the most common retirement questions is:

How much money do I actually need to retire?

For federal employees, the answer is different than for most people because your retirement income usually comes from multiple sources—not just savings.

To estimate your own retirement income:
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The Wrong Way to Think About Retirement

Many people focus on:

  • Total savings
  • TSP balance
  • A single target number (like $1 million)

That approach is incomplete.


The Right Way: Income Replacement

The better question is:

How much monthly income do I need, and where will it come from?

Federal retirees typically use a combination of:

  • FERS pension
  • TSP withdrawals
  • Social Security
  • VA disability (if applicable)

Step 1: Estimate Your Monthly Expenses

Start with your expected retirement spending.

Example:

  • Housing: $2,000
  • Food: $800
  • Healthcare: $700
  • Utilities: $400
  • Miscellaneous: $1,100

Total: $5,000/month


Step 2: Calculate Guaranteed Income

Next, estimate fixed income sources.

Example:

  • FERS pension: $3,200
  • VA disability: $1,000

Total guaranteed income: $4,200/month


Step 3: Identify the Gap

Subtract guaranteed income from your expenses.

$5,000 – $4,200 = $800/month gap

This is what your TSP (or other investments) needs to cover.


Step 4: Determine Required TSP Balance

Using a 4% withdrawal rule:

$800/month = $9,600/year

$9,600 ÷ 0.04 = $240,000 TSP needed


Example Full Scenario

  • Expenses: $6,000/month
  • Pension: $3,500
  • VA: $1,200
  • Gap: $1,300

TSP needed:

$1,300 × 12 = $15,600/year
$15,600 ÷ 0.04 = $390,000


Why Federal Employees Need Less Than Others

Because of the FERS pension, many federal employees need:

  • Less savings than private sector workers
  • Smaller TSP balances
  • Lower withdrawal rates

Your pension acts as a financial foundation.


How Social Security Changes the Equation

At age 62 or later, Social Security may reduce your TSP needs.

Example:

  • Gap before SS: $1,300
  • Social Security: $1,800

Your gap may disappear entirely.


5 Common Mistakes

  1. Focusing only on total savings
  2. Ignoring pension income
  3. Overestimating expenses
  4. Underestimating healthcare costs
  5. Not planning for income changes over time

Timeline Matters

Your income changes over time:

  • Early retirement: pension + TSP
  • Age 62: Social Security begins
  • Age 65: Medicare affects expenses

Planning must account for each phase.


What to Do Next

Run multiple scenarios:

  • Different retirement ages
  • With and without Social Security
  • Different spending levels

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Disclaimer

This article is for educational purposes only. Always verify your financial plan with qualified professionals.