Most retirement plans focus on gross income.
But that is not what you actually spend.
What matters is:
How much money you take home after taxes and healthcare costs.
Why Net Income Matters
You may estimate:
- FERS pension
- TSP withdrawals
- Social Security
But without factoring in:
- Taxes
- FEHB premiums
- Medicare
Your plan can be significantly off.
Step 1: Start with Gross Monthly Income
Example:
- FERS pension: $3,500
- TSP withdrawals: $2,000
- Social Security: $2,000
- VA disability: $1,200
Total gross:
$8,700/month
Step 2: Subtract FEHB Premiums
Example:
- FEHB: $800/month
New total:
$7,900/month
Step 3: Add Medicare (If Applicable)
At age 65:
- Medicare Part B: ~$200/month
New total:
$7,700/month
Step 4: Estimate Taxes
Taxable income includes:
- FERS pension
- Traditional TSP withdrawals
- Part of Social Security
Not taxed:
- VA disability
Example estimate:
- Federal + state taxes: ~$1,500/month
Step 5: Calculate Net Income
Final:
$7,700 – $1,500 = $6,200/month net income
What This Reveals
Gross:
$8,700
Net:
$6,200
Difference:
$2,500/month
That is a major gap many retirees do not plan for.
How Each Income Source Is Taxed
FERS Pension
- Fully taxable (federal)
- State varies
TSP
- Traditional: taxable
- Roth: tax-free (qualified)
Social Security
- Partially taxable depending on income
VA Disability
- Not taxed
How to Improve Net Income
1. Use Roth TSP Strategically
Reduces taxable income later
2. Control Withdrawal Timing
Avoid pushing into higher tax brackets
3. Plan Social Security Timing
Delaying may improve long-term income
4. Manage Healthcare Costs
Choose FEHB plans carefully
Evaluate Medicare decisions
Example Comparison
Poor Planning
- High Traditional TSP withdrawals
- Early Social Security
- High taxes
Result:
Lower net income
Optimized Plan
- Balanced Roth/Traditional
- Delayed Social Security
- Controlled withdrawals
Result:
Higher net income
5 Common Mistakes
- Focusing only on gross income
- Ignoring FEHB costs
- Underestimating taxes
- Not using Roth strategies
- Not modeling scenarios
Key Takeaway
Your retirement success is not determined by how much you earn.
It is determined by how much you keep.
What to Do Next
Calculate your real income:
Compare:
- Gross vs net
- Taxable vs non-taxable
- Different withdrawal strategies
Disclaimer
This article is for educational purposes only. Tax laws and premiums change. Always consult a qualified professional.