One deployment. $87,000 into Roth accounts. Never taxed going in, never taxed coming out — and if you're 25, that grows to roughly $1.5 million by 60 without a dollar of federal income tax. In this solo episode, Spencer Reese breaks down the military mega backdoor Roth: the combat-zone strategy that lets you blow past the normal TSP limit using tax-exempt CZTE pay and the Roth in-plan conversions that became available in January 2026. He walks through the exact myPay percentages, the monthly conversion rhythm, and the mistakes that can lock you out of contributions or cost you the BRS match. Questions Answered What is the combat zone tax exclusion (CZTE), and who qualifies? What's the difference between traditional and Roth contributions? Which two limits make this strategy work — and why doesn't CZTE pay count against the elective deferral limit? How much extra TSP space does a combat zone deployment actually open up? What percentages should you set in myPay? What are the Roth in-plan conversion rules and restrictions? Why convert monthly instead of once at the end of the year? What happens to the taxable portion, and how do you pay those taxes? What if you're only deployed six months? Where do people screw this up? What should you change when you get home? Main Topics Covered The triple tax advantage of CZTE pay: tax-free in, tax-free growth, tax-free out 2026 limits: $24,500 elective deferral vs. the $72,000 annual additions limit Why tax-exempt combat zone pay only counts against the higher limit Worked example on $100,000 base pay: ~24–25% to Roth TSP, ~43% to traditional TSP Roth in-plan conversions — up to 26 per calendar year, $500 minimum, $500 must stay behind The pro rata rule and why monthly sweeps beat one December conversion Stacking Roth IRAs on top: $7,500 single / $15,000 married filing jointly Common mistakes: maxing the Roth TSP early and losing the BRS match, the 92% myPay cap that makes DFAS reject the whole transaction, and letting gains pile up before converting The six-month deployment version — still roughly $74,000 into Roth accounts Turning off the extra contributions once you're back home Deploying next year? Pre-loading traditional contributions to convert at a low rate Resources Mentioned Full article + calculator: https://militarymoneymanual.com/max-tsp-contributions-combat-zone/ — or search "military mega backdoor Roth" CZTE area list: irs.gov TSP contribution rules: tsp.gov (contributions section) TSP in-plan Roth conversion guide How to max your TSP and get the full BRS match Savings Deposit Program (SDP) — guaranteed 10% on $10,000 while deployed Book: The Military Money Manual Advertiser Disclosure: This video may contain links through which we are compensated when you click on or are approved for offers. The information in this video was not provided by any of the companies mentioned, and has not been reviewed, approved, or otherwise endorsed by any of these entities. All opinions, analyses, and recommendations are the author's alone, not those of any bank, credit card issuer, airline, or hotel chain. Military Money Manual may receive compensation from JPMC. Spencer and Jamie offer one-on-one Military Money Mentor sessions. Get your personal military money and personal finance questions answered in a confidential coaching call. militarymoneymanual.com/mentor Over 24,000 military servicemembers and military spouses have graduated from the 100% free, Ultimate Military Credit Cards Course available at militarymoneymanual.com/umc3 In the Ultimate Military Credit Cards Course, you can learn how to apply for the most premium credit cards and get special military protections, such as waived annual fees, on elite cards like the Chase Sapphire Reserve® Card. Learn how active duty military, military spouses, and Guard and Reserves on 30+ day active orders can get your annual fees waived on premium credit cards in the Ultimate Military Credit Cards Course at militarymoneymanual.com/umc3 If you want to maximize your military paycheck, check out Spencer's 5 star rated book The Military Money Manual: A Practical Guide to Financial Freedom on Amazon or at shop.militarymoneymanual.com. If you have a question you would like us to answer on the podcast, please reach out on instagram.com/militarymoneymanual. Offers may be expired: Offers, rates, fees, and benefits are subject to change and may have ended since this video was published — please verify the current terms on the issuer's official website before applying. Terms apply, and all cards are subject to credit approval. Any comments below are from individual users and are not provided, reviewed, approved, or endorsed by any issuer.
