Asset Location Strategy: Placing Investments in the Right Accounts
Two people can own the identical portfolio and keep different amounts of it. The difference isn't what they bought — it's which account each holding happens to sit in, a decision most people make by accident.
Three accounts, three tax treatments
A taxable brokerage account is taxed as you go: dividends and interest each year whether you spend them or not, and capital gains when you sell. Nothing is sheltered, but you can access it any time and you control when gains are realised.
A tax-deferred account — traditional 401(k) or IRA — takes pre-tax money, shelters everything inside it, and taxes withdrawals as ordinary income. Nothing that happens inside creates a tax event.
A Roth takes after-tax money and then nothing is ever taxed again: no tax on growth, none on qualified withdrawals. Because the shelter is permanent rather than temporary, a dollar of growth inside a Roth is worth more than a dollar of growth anywhere else.
Taxable: taxed as you go. Tax-deferred: taxed at the end. Roth: not taxed again.
Some holdings waste a shelter and some need one
Investments differ enormously in how much tax they generate while you simply hold them. A broad index fund throws off modest, mostly qualified dividends and trades rarely, so it costs you very little each year — it is already efficient, and sheltering it buys you less.
A corporate bond fund or a REIT pays income taxed at your full ordinary rate, every year, whether you wanted the income or not. Two things make that worse than it sounds: ordinary rates run well above the qualified-dividend and long-term-gain rates, and you can't defer it by simply not selling, the way you can with a gain.
Municipal bonds make the point most sharply in reverse. Their interest is already exempt from federal tax, so putting them in a sheltered account shelters something that needed no shelter — while burning space a taxable holding could have used.
Ask what a holding costs you in tax in a year you don't sell any of it. That number is what a shelter is buying.
Sheltered space is rationed, which is what makes this a decision
If you could shelter everything, there would be no such thing as asset location — you'd just do it. What creates the problem is that the shelters have hard annual caps: $24,500 of employee 401(k) deferral this year, and a much smaller figure again for an IRA.
So every dollar of sheltered space spent on a holding that didn't need it is a dollar unavailable to one that did. That's why the right question is never 'is this a good investment' but 'which of my holdings would suffer most from being left outside'.
The ranking that falls out is straightforward. Ordinary-income generators first, because they're taxed hardest and taxed annually. Then whatever you expect to grow the most goes in the Roth, because permanently untaxed growth is worth most where there's the most growth to untax. Whatever's left over is what sits in taxable — and it should be the stuff that barely notices.
Assets throwing off income taxed at ordinary rates belong in sheltered accounts; already tax-efficient holdings can sit in taxable. It changes what you keep, not what you earn — and only matters once you hold the same assets across several account types.
Sources
- Publication 550: Investment Income and Expenses — dividends, interest and capital gains — Internal Revenue Service (2026)
- Retirement Topics — 401(k) and Profit-Sharing Plan Contribution Limits — Internal Revenue Service (2026)