Many federal employees ask:
“What will my retirement actually look like?”
Not in theory—but in real numbers.
This example breaks down a realistic GS-12 retirement scenario using common assumptions.
The Scenario
Assumptions:
- GS-12 Step 5 equivalent
- High-3 salary: $100,000
- Years of service: 30
- Retirement age: 57 (MRA)
- TSP balance: $500,000
- No military buyback
- No VA disability (for this baseline example)
FERS Pension
Formula:
High-3 × Years × Multiplier
$100,000 × 30 × 1% = $30,000/year
Monthly:
$2,500/month
FERS Supplement (Age 57–62)
Estimated Social Security at 62: $2,000/month
30 ÷ 40 = 0.75
0.75 × $2,000 = $1,500/month
TSP Income
Using a 4% withdrawal rate:
$500,000 × 4% = $20,000/year
Monthly:
$1,667/month
Total Income (Age 57–62)
- FERS: $2,500
- Supplement: $1,500
- TSP: $1,667
Total:
$5,667/month
At Age 62 (Supplement Ends)
- FERS: $2,500
- Social Security: $2,000
- TSP: $1,667
Total:
$6,167/month
At Age 65+
Same income structure, but now:
- Medicare begins
- FEHB coordinates with Medicare
- Healthcare costs may change
What This Shows
A GS-12 retirement:
- Does NOT rely solely on TSP
- Has a strong pension foundation
- Gains stability after Social Security begins
What If You Add VA Disability?
Example:
- VA: $1,500/month
New totals:
Age 57–62:
$7,167/month
Age 62+:
$7,667/month
What If TSP Is Lower?
If TSP = $250,000:
- Monthly income drops to ~$833/month
New total (57–62):
~$4,833/month
This shows how important TSP is for flexibility.
Key Variables That Change Everything
Your actual retirement will vary based on:
- High-3 salary
- Years of service
- TSP balance
- VA disability
- Retirement age
- Social Security timing
5 Common Mistakes
- Assuming pension is enough
- Ignoring the supplement
- Overestimating TSP withdrawals
- Not planning for age 62 transition
- Not running multiple scenarios
Key Takeaway
A GS-12 retirement is typically:
- Stable
- Multi-income
- Stronger than most private-sector retirements
But only if properly planned.
What to Do Next
Run your own numbers:
Compare:
- Different retirement ages
- TSP balances
- Income scenarios
Disclaimer
This example is for educational purposes only. Actual results will vary. Always verify your retirement details with official sources.