Somewhere along the way, enough became the purpose. Something about the life you're living doesn't match the one you meant to build — and this is a book for the quiet moment when you stop long enough to notice.
The practice of closing the gap between the life you're paying for and the life you could actually be living.
The Life Arbitrage is the practical book: the taxes, the healthcare, the D7 visa, the sequence, the estate plan that crosses borders — all of it built from $43,000 in mistakes Mark Moberg made crossing the Atlantic with his own family, so you don't have to.
But underneath the spreadsheet is a book about something older. You stand in front of everything you've accumulated and you ask three questions. What is essential. What is decoration. Do you have the courage to tell the difference.
This book won't tell you to move. It will ask you what you're waiting for — and why the answer you've been giving yourself might not be the real one.
— from The Life Arbitrage, Ch. 2"You spent your whole life making sure you wouldn't run out of money. At some point, you have to ask who's making sure you don't run out of life."
Your best qualities don't disappear when you get stuck. They put on a disguise. The arc is always the same: a genuine virtue gets reinforced by decades of success, calcifies into an unexamined heuristic, and—when the environment finally changes—becomes a disguise that impersonates wisdom. The five patterns below are what it looks like at the end of that arc.
Five ways smart people convince themselves they need more information when what they actually need is permission. Most people wear one without knowing it — it takes about two minutes to find yours.
Find your disguise →You keep gathering information, running scenarios, reading one more article. The research feels productive — but completion never arrives, because the goal was never information. It was delay wearing the costume of diligence.
You'll do it when the market is better, the kids are older, the house sells, the election settles. Each condition is reasonable on its own. Stacked together, they form a wall that never comes down — because when one condition clears, another replaces it.
You outsource the decision to someone who hasn't earned the vote — a skeptical friend, a worried parent, a financial adviser who measures readiness only in dollars. Their hesitation becomes your permission to stay.
The move threatens something you've built your identity around — the title, the house, the neighborhood, the professional reputation. The resistance doesn't say "I'm afraid." It says "That's not who I am."
You frame staying as selflessness — for the grandchildren, for aging parents, for a spouse who isn't ready. The sacrifice is real, but it also happens to be the option that requires no change. That's the part worth examining.
Four dimensions measure what's actually driving your decision: Prior Reinvention (have you done something like this before?), Stated vs. Revealed Risk Gap (does what you say match what you do?), Overhead Density (how much structural weight are you carrying?), and Conviction Readiness (is this a someday dream or a next-year plan?). You'll learn which disguise is running your decision — and whether the decision you think you're still making is one you've already made.
Take the assessment →Compare your current US city against Portugal across four dimensions: federal and state taxes vs. Portuguese tax regimes (NHR/IFICI), housing costs, healthcare premiums and out-of-pocket, and the years of life you'd reclaim from the gap. Enter your city, income, and family size. Two minutes. No email. No pitch.
You'll see a side-by-side comparison with your estimated annual savings and a time-value projection showing what those savings could mean in years, not just dollars.
Run your numbersMark Moberg offers cross-border financial planning for Americans in Portugal — tax structure, investment accounts, estate architecture, and currency exposure. Not a relocation agency. Not a lifestyle blog. A practice built for the financial complexity of living across two countries.
Every planner you've talked to measured your readiness in dollars. Nobody measured it in time. Fifteen minutes, one honest question. I'll tell you the truth — even if the truth is "not yet."
Ask one questionYou already redenominated your life. The question now is whether the financial architecture you brought has caught up. Thirty minutes — we'll look at what's still measured in the old currency.
Review your positionA relocation agency helps you move your boxes. This book helps you move your financial life — the tax structure, the estate plan, the investment accounts, the sequence of decisions that determines whether the move costs you or saves you. And underneath the finances, it asks the question the agency never will: are you actually ready, or are you running from something?
Most Portugal books are written by lifestyle bloggers or travel writers. This one is written by a CFP® and CBDA® with 25 years of financial planning experience who made the move himself — and documented every financial mistake along the way. The tax chapter alone covers NHR, IFICI, treaty elections, and the sequencing errors that cost real money. The behavioral chapters (the Five Disguises, the permission thesis) don't exist in any other expat guide.
Most cross-border planners know the regulations. Very few have lived the sequence: selling the house, pulling the kids from school, navigating NIF applications, discovering which healthcare decisions have to happen before you land and which can wait. The $43,000 in mistakes in this book didn't come from ignorance of the rules. They came from not knowing the order.
The book is designed for two audiences: people seriously considering the move, and people who already moved and need their financial architecture reviewed. If you're still deciding, the Readiness Assessment and the Five Disguises chapters will help you understand what's actually holding you back — which may or may not be the thing you think it is.
Yes. The NHR program closed to new applicants and has been replaced by the IFICI regime. The book covers both — what grandfathered NHR holders need to know, and what new arrivals should plan for under IFICI. Tax law changes after publication are tracked on the Book Updates page.
The complete book — taxes, healthcare, the D7 visa, the sequence, and the questions underneath all of it. On Kindle now.
Preorder on AmazonSoftcover and eBook editions ship the same day. One for the shelf. One for the plane.
Tax law changes. Visa rules shift. Portugal rewrites the fine print while you sleep. When parts of this book become outdated, you'll find the most current information here — so the advice stays useful long after the ink dries.
View all updatesLawyers, accountants, relocation specialists, and the people who actually pick up the phone. The same directory I hand my clients — organized by what you need and when you'll need it.
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