Taxes · investing
Asset allocation is the mix. Asset location is which account holds the mix. Getting location wrong quietly taxes the same 80/20 portfolio you thought was already “set.”
Updated 2026-09-08 · 10 min read
A 80/20 stock/bond target is an allocation decision. Whether the bond fund sits in a taxable brokerage or a traditional IRA is a location decision. Interest from most bond funds is taxed as ordinary income in a taxable account — the same bracket as a paycheck. A broad US stock index in taxable mostly throws off qualified dividends and long-term gains, which are taxed lower, and you can harvest losses.
Households that copy their 401(k) target-date fund into a taxable account often hold bonds and REITs where they pay the most tax. The allocation looks diversified. The IRS sees a high-yield checking account with extra steps.
Taxable brokerage: low-turnover total-market or S&P 500 ETFs, total international ETFs. Keep enough equity here to harvest losses in a drawdown and to use foreign tax credits on international dividends. Municipal bonds only if you are in a high ordinary bracket and the after-tax yield actually beats a Treasury in the IRA.
Traditional 401(k) / IRA: bond index funds, TIPS, REITs, actively managed funds, and anything that throws ordinary income. You already pay ordinary tax when you withdraw; you should not also pay it every year on the way.
Roth IRA / Roth 401(k): the highest expected-growth slice — small/mid tilt, international small, or simply more of the equity you already want — because every extra dollar of compounding leaves the account tax-free. HSA (if you can leave receipts in a shoebox) behaves like a Roth for medical spending and belongs with long-duration equity, not a 0.4% cash sweep.
Do not sell a $40,000 embedded gain in taxable just to “put bonds in the IRA.” Direct new 401(k) contributions into the bond fund until the IRA holds the household bond sleeve. Direct new Roth money into equity. Turn off automatic reinvestment in taxable on the funds you are shrinking; send those dividends to the funds you want to keep.
If you must sell, use specific-lot identification and harvest losses in the same year. Crossing the NIIT 3.8% MAGI cliff ($200,000 single / $250,000 married, still the 2026 statute) to tidy a ticker is the wrong trade. Location is a multi-year project, not a weekend.
See the related tools: asset-location tax-drag calculator and the paid asset-location implementation playbook.
Allocation is the mix — how much stock vs bond vs cash. Location is the wrapper: which of those holdings sit in a taxable brokerage, a traditional IRA or 401(k), a Roth, or an HSA. A 80/20 allocation with bonds in a taxable account pays more tax than the same 80/20 with bonds in the IRA.
Usually yes as a default. Roth growth is tax-free, so the highest expected-return slice belongs there. Traditional accounts defer ordinary income tax, which is where taxable bond interest and REIT dividends hurt most. Leave a broad, tax-efficient US index in taxable so you can harvest losses.
No. New contributions and dividend reinvestment do most of the work. Selling a large taxable gain to 'clean up' location can cost more than years of tax drag. Map lots, use specific identification, and move with cash flows first.
Educational only. Confirm current IRS rates, NIIT thresholds, and your own lots before you trade.