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What Is an Apostille and When Do You Need It: A US–Japan Family’s Guide

What Is an Apostille? A US–Japan family's guide to getting one in time

By Dako The word usually arrives in a sentence that also contains a deadline. Some office on the Japanese side of your life, a city hall, a bank, a legal affairs bureau, asks for a US document, and then adds…

  • Dako
  • 2026年9月5日
  • Our FIRE Journey

Our FIRE Number in Two Currencies: Planning Retirement Spending in Yen

Our FIRE Number in Two Currencies — planning retirement spending in yen

By Dako & Jay We have a FIRE number. It’s in dollars, because every account we own is in dollars. Two 401(k)s. A taxable brokerage of US-listed funds and US stocks, a traditional IRA, a Roth, an HSA, a high-yield…

  • Dako
  • 2026年9月3日
  • Exit Tax & Green Card

Keeping Your Green Card for a Dual-Base Life: The Real Tax Cost of Not Deciding

The Real Cost of Keeping the Card — green card, dual-base life, and the clock you can't pause

By Dako For a long time I filed the green card question under “not urgent.” We haven’t decided whether we’re moving to Japan, splitting the year, or staying put. So the card just sits there, doing its job, waiting for…

  • Dako
  • 2026年8月31日
  • For Spouses

Navigating Japanese Bureaucracy When You Don’t Speak Japanese: A Survival Guide

Featured image: Navigating Japanese Bureaucracy When You Don't Speak Japanese — Two Countries, One Plan (For Spouses)

By Jay Let me describe my role in Japanese government offices, because “survival guide” implies more heroism than I can honestly claim. Dako walks up to the counter. Dako talks. The person behind the counter talks back. Papers appear, get…

  • Dako
  • 2026年8月27日
  • Portable Wealth

Splitting the Year Between the US and Japan: Who Counts You as a Tax Resident?

Featured image: Splitting the Year Between the US and Japan — Who Counts You as a Tax Resident? Two Countries, One Plan (Portable Wealth)

By Dako The dual-base dream has a specific shape in our house: cherry blossoms and my parents’ kitchen for part of the year, our life in the US for the rest. Somewhere along the way of imagining it, the unromantic…

  • Dako
  • 2026年8月24日
  • Family & Kids

How We Plan to Talk to Our Kids About FIRE (Without Making Money Weird)

Featured image: How We Plan to Talk to Our Kids About FIRE (Without Making Money Weird) — Two Countries, One Plan (Family & Kids)

By Dako & Jay Here’s a confession to open a parenting post: we haven’t actually had the conversation yet. Our kids are still little, young enough that “financial independence” would land somewhere between “quantum physics” and “why the sky is…

  • Dako
  • 2026年8月20日
  • Portable Wealth

Which of Your US Accounts Survive a Move to Japan? Brokerage, 401(k), IRA, HSA

Featured image: Which US Accounts Survive a Move to Japan? Brokerage, 401(k), IRA, HSA — Two Countries, One Plan (Portable Wealth)

By Dako Nobody loses a brokerage account at the border. That’s the fear that brings people to this question, so let’s retire it in the first paragraph: moving to Japan does not freeze, confiscate, or erase your US accounts. What…

  • Dako
  • 2026年8月18日
  • Exit Tax & Green Card

IRC 877A Exit Tax Explained: The Basics Every Green Card Holder Should Know

IRC 877A Exit Tax Explained — typographic featured image, Exit Tax & Green Card series, Two Countries One Plan

By Dako The scariest version of the story goes like this: you give up your green card, and the IRS takes half of everything on your way out. I’ve now spent enough evenings inside section 877A of the tax code…

  • Dako
  • 2026年8月13日
  • For Spouses

Your 401(k) Doesn’t Care About Your Marriage: What Happens When Only One Spouse Is a US Citizen

Your 401(k) Doesn't Care About Your Marriage — typographic featured image, For Spouses series, Two Countries One Plan

By Dako & Jay In our house we talk about “our retirement money” the way most couples do. One number, one plan, one future. The IRS has never once seen it that way. A 401(k) is an individual account. Not…

  • Dako
  • 2026年8月10日
  • For Spouses

What I Wish Someone Told Me Before Marrying Into a Japanese Family and Planning to Relocate

What I Wish Someone Told Me Before Marrying Into a Japanese Family and Planning to Relocate - featured image

By Jay Nobody warns you about the paperwork. People warn you about chopsticks etiquette and meeting the parents and whether you should bow or shake hands. Useless. Lovely, but useless. I’m the American half of this blog. My wife Dako…

  • Dako
  • 2026年8月6日
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