In Part 1, I told you the hard part: I sold the house I’d owned for more than a decade at roughly a 40% loss — and walked away from it completely debt-free, with about $14,000 of deposit money in hand and another ~$80,000 due to arrive in October.
So that first $14,000 landed in my account. My big, brilliant plan for it? Honestly — I still don’t have one. I’m going to think it through slowly and share every step here. But I did do one thing right away, almost on reflex: I moved the money into my ISA. And if you’re reading this from outside Korea, there’s a good chance you just thought: your what?
So what is an ISA?
ISA stands for Individual Savings Account — in Korean, 개인종합자산관리계좌 (a mouthful even for us). It helps to think of it less as an “investment” and more as a special, tax-friendly box you put your money in. Inside that box you can hold cash, funds, ETFs, and stocks — and the government gives you a break on the taxes you’d normally owe on the profits. The account is just the wrapper; what you put inside is up to you. (Korea’s financial regulator even has an official English explainer if you want the formal version.)
The rules (the version that actually applies today)
Here’s how Korea’s ISA works right now:
- You can contribute up to about 20 million won a year — roughly $13,000 — and up to 100 million won (about $67,000) in total over the years.
- Unused room carries over. Because I opened mine back in 2025 and didn’t fill it up, that unused allowance stacked up — so today I actually have about 35.5 million won (~$23,000) of contribution room available. That’s exactly why I could drop the house deposit straight in.
- You need to keep the account for at least 3 years to lock in the tax benefit.
- The tax break: the first ~2 to 2.5 million won of net profit is completely tax-free, and anything above that is taxed at a flat 9.9% — lower than the usual 15.4% on Korean investment income. Gains and losses across everything in the account are netted together first, too.
(One honest footnote: the government has proposed raising these limits — to as much as 40 million won a year and 200 million total — but as of mid-2026 that’s still working its way through the legislature, not yet law. So I’m planning around today’s rules, not the headlines.)
What’s Actually Sitting in the Account Right Now
Writing about a tax wrapper in the abstract is easy. Opening the account and showing you is more useful, so here is the honest state of mine.
Roughly half the balance is still cash. The other half is in two Korea-listed ETFs: one tracking the Nasdaq 100, and one tracking the Dow Jones U.S. Dividend 100 — the same index American readers know through the fund SCHD. That’s it. Two funds and a pile of uninvested money.
The cash is the house money. It arrived, it went into the box, and a good portion of it is still sitting there doing nothing.
I want to sit with that for a moment rather than move past it, because it contradicts something I’ve written elsewhere on this site.
Half of It Is Cash, and I’ve Argued Against Exactly That
In my post on dollar-cost averaging, I quoted Vanguard’s research: when a lump sum lands in your account, investing it immediately beats feeding it in slowly roughly two-thirds of the time. I wrote, in those words, that the next time a bonus arrived I already knew the honest answer — put it in.
Then a lump sum landed, and I didn’t.
So let me be straight about the gap between what I know and what I did. Part of it is defensible: this money came from selling a home at a significant loss, the rest of the proceeds arrive later, and I wanted the account structure settled before deciding on the whole amount rather than making one decision and then a different one. Part of it is not defensible at all. It is simply that deploying money that took eleven years and a painful loss to free up feels different from deploying a paycheque, and I hesitated.
I’m leaving that in the post rather than tidying it up, because a blog where the author always follows his own advice is a blog that’s hiding something. The plan from here is the tranche approach I described in my post on handling a crash: fixed amounts on fixed dates, no timing calls, until the cash is working. Writing it here is how I make myself do it.
Why I parked the house money here
For me it was almost a no-brainer. I’m going to invest this money the same boring way I invest everything else — steady, broad-market, dollar-cost-averaged — and the ISA simply lets me do that inside a tax-efficient wrapper. If some of my S&P 500 and dividend holdings do well, more of that profit stays mine. If something dips, those losses quietly offset my gains. For a slow, long-term investor, that’s a real gift.
The Three-Year Clock Changes How You Invest Inside It
This is the part that most explanations skip, and it’s the part that actually shapes behaviour.
An ISA is not a retirement account. My pension accounts are locked until I’m in my late fifties, which means the correct time horizon inside them is measured in decades and short-term volatility genuinely doesn’t matter. An ISA has a three-year minimum instead. That’s long enough that cash is a waste, and short enough that I can’t reasonably pretend a 40% drawdown wouldn’t matter.
It sits in an awkward middle, and the honest consequence is that I hold slightly different things inside it than I do in the pension accounts.
There’s also a detail about what happens at the end that I think is the most useful thing in this article. When my ISA matures, I don’t plan to take the money out. I intend to roll it into my pension savings account, where it goes back to being locked and keeps compounding under retirement rules.
So the ISA isn’t really a destination for me. It’s a three-year holding pen with a tax benefit attached, feeding into the long-term accounts afterwards. That reframing is what stopped me treating it like a place to be clever.
ISA or Pension Account — Which Do I Fill First?
Both are tax-advantaged, so the natural question is where a won should go first. For me the order is settled, and it isn’t close.
| Pension accounts | ISA | |
|---|---|---|
| Benefit | Tax credit, cash refund | Tax-free gains |
| When you get it | Every year | At maturity |
| Certainty | Guaranteed | Only if you profit |
| Locked until | Late fifties | Three years |
| Annual ceiling | ₩18m combined | ₩20m |
Look at the third row, because that’s the whole argument. The pension credit pays out whether or not the market cooperates. The ISA benefit only exists if I make a gain worth shielding. A certain refund beats a conditional one, so the pension ceiling gets filled first and the ISA takes what’s left. I’ve written about why that refund is so hard to beat in my post on America’s 401(k) millionaires.
The exception is money like this — a lump sum arriving outside the monthly rhythm, larger than the remaining pension room and needed sooner than my late fifties. That’s exactly the shape of money the ISA is for.
Does the rest of the world have this?
Yes — and Korea actually borrowed the idea. The ISA was invented in the United Kingdom, where it’s genuinely generous: savers there can shelter up to £20,000 every year, the growth is completely tax-free, and they can withdraw the money whenever they like. Korea launched its own version in 2016, modeled on the British one — though ours comes with tighter limits and that 3-year lock.
The United States, interestingly, doesn’t have a general-purpose ISA at all. Americans reach for retirement accounts instead — most similarly the Roth IRA, where you invest post-tax money (around $7,000 a year) and withdrawals in retirement come out tax-free. The catch is that it’s built for retirement, so pulling money out early usually triggers penalties. So if you’re American: picture “a Roth IRA, but more flexible about when you can touch it.” If you’re British: “an ISA, just smaller.”
Questions I Get Asked
Can foreigners living in Korea open an ISA?
Residency and tax status determine eligibility rather than nationality, and the rules have specific conditions. This is worth confirming with your bank or broker directly rather than trusting a blog — including this one.
What happens if I take the money out before three years?
You lose the tax benefit; the gains get taxed the ordinary way. Early termination is allowed, it just defeats the purpose. That’s why I treat the deposit date as a commitment rather than a parking decision.
Can I hold US stocks like Apple or Tesla directly in it?
Not directly. What I hold are Korea-listed ETFs that track US indexes, which is how most Korean investors get American exposure inside these wrappers. The index is the same; the container is local.
Is the tax break actually big enough to bother with?
On a small balance, honestly, not very. The exemption is capped, and below that cap the difference is modest. It becomes worth caring about as the account grows — which is another reason I think of it as a three-year staging area rather than a clever tax trick.
Does it help with retirement?
Indirectly, and only because of what I do at the end. An ISA on its own is a medium-term account. Rolling it into a pension account at maturity is what turns it into part of a retirement plan, and that step is a choice, not a default.
The account is ready. Now comes the hard part.
Here’s what I keep circling back to, though: an ISA is just a container. A tax-friendly box is only as good as what you decide to put inside it. The money is sitting in the account now — but I still haven’t decided how to actually invest it. Do I put it all into the S&P 500 at once? Drip it in over months, the way I usually do? Keep some in dividend payers? That’s the question I’m genuinely wrestling with — and it’s exactly what Part 3 will be about, decided in real time, with real numbers.
For now, one small, satisfying step is done: the first piece of my house money has a good home. Slow and steady, one step at a time.
This is my personal story, not financial advice — just one 40-something engineer’s honest notes on his own journey. Tax rules change and depend on your situation, so please do your own research or talk to a qualified professional before making any financial decisions.