Deployment Savings Sprint: How Much Wealth Can One Tour Build?
Example: Monthly basic pay during deployment: 4200 $ · Monthly BAH (saved — no rent costs): 1800 $ · Monthly BAS (saved — no food costs): 460 $ · Deployment length: 9 months · Monthly SDP deposit (max $10k total): 1000 $ · TSP contribution rate during deployment: 60 % · Long-term investment return (for SDP alternative): 7 %/yr
| Estimated total net worth added by deployment | $44,179 |
| Gross income during deployment | $58,140 |
| BAH + BAS saved (housing + food covered) | $20,340 |
| SDP guaranteed interest earned | $675 |
| Roth TSP contributions during deployment | $22,680 |
Worked example
A 9-month combat deployment at $4,200 basic pay: BAH of $1,800 and BAS of $460 are saved in full = $20,340 in housing/food savings. SDP at $1,000/month × 9 months earns roughly $338 in guaranteed interest. TSP contributions at 60% of basic pay = $22,680 into Roth TSP, tax-free. Total deployment gross income: $60,480. Estimated total net worth added across savings, SDP, and TSP: approximately $43,358 — more than most Americans save in two to three years, compressed into one 9-month sprint.
Frequently asked questions
What is the realistic maximum wealth a deployment can build?
At max contribution (60%+ TSP, full $10k SDP, all BAH/BAS saved) during a 12-month combat deployment, a mid-grade service member can add $50,000–$80,000 in net worth in a single year. Senior NCOs and officers with higher pay can exceed $100,000. The constraint is not the math — it is having low enough home-station expenses (spouse income, family frugality) to actually save the BAH.
Can my spouse access the saved BAH while I am deployed?
Yes. BAH continues to your legal residence or family. The 'savings' in this model assumes your family's housing cost (rent or mortgage) is lower than your BAH rate — the difference is the savings. If your mortgage equals your BAH, your family has zero housing expense while you are deployed, and the full BAH covers it. Any surplus stays in your account.
What should I do with deployment savings when I return?
Financial planners recommend: 1) Fully fund your emergency fund (3–6 months expenses). 2) Max out Roth TSP and/or Roth IRA for the year. 3) Put remainder into taxable brokerage or pay down high-interest debt. Avoid lifestyle inflation — the deployment sprint is a wealth-building moment, not a spending moment.
Is the SDP interest taxable after I return?
Interest earned while deployed in a combat zone may be excluded from federal income tax under CZTE. Interest earned during the 90-day post-deployment grace period is taxable. Confirm the tax treatment with your finance office based on your specific deployment orders.