Asset Location Optimizer for HNW Portfolios

At $5M+ investable, you likely hold assets across five or more account types: taxable brokerage, traditional IRA or 401(k), Roth IRA, trust accounts, and HSA. The question of where each asset class sits — not just what you own — determines how much you pay in taxes each year.

Most HNW portfolios are mis-located by 20–40%. Bonds and REITs sit in taxable accounts generating ordinary income taxed at 37%; equities sit in IRAs that could be sheltering the high-yield assets instead. Correcting placement alone can add $20,000–$100,000+/year in after-tax return on a $10–$30M portfolio — without changing your target allocation or accepting more risk.

Why asset location matters more at HNW scale

• The stakes are proportional to portfolio size. A 0.3% annual tax drag on $300K is $900/year — annoying. On $15M it's $45,000/year, and it compounds for decades.
• You have more account types to optimize. A $200K 401(k) investor has one or two buckets. A $10M investor has taxable, IRA, Roth, trust, HSA, possibly a pension — six buckets with different tax treatments, creating real optimization opportunity.
• The bracket math is punishing. In 2026, high-income investors pay 37% on ordinary income and 23.8% on capital gains (20% LTCG rate + 3.8% NIIT).¹ Keeping bonds — which generate fully ordinary income — out of taxable is worth 37 cents per dollar of yield.

The hierarchy: what goes where

Asset location tax drag calculator

Enter your portfolio structure and asset allocation. The calculator shows annual tax drag under proportional (naive) placement vs. optimized placement, and the 20-year compounding impact at 6% portfolio growth.

What coordinated asset location looks like in practice

A $15M portfolio with 40% bonds, 35% US equity, 15% intl equity, 10% REITs might be held across six accounts: taxable brokerage ($5M), traditional IRA ($4M), Roth IRA ($2M), trust ($2M), HSA ($200K), and a 401(k) ($1.8M). Optimal placement:

• IRAs + 401(k) ($5.8M): Fill entirely with bonds ($4M) and REITs ($1.5M). No taxable income generated in the high-drag accounts.
• Roth IRA ($2M): US equity SMA or broad market index. Highest expected return earns the most from permanent tax-free growth.
• Taxable + trust ($7M): International equity index ($2.25M, foreign tax credit maximized), remaining US equity ($3.25M, direct-indexing TLH). Any remaining bonds sit here only as last resort.
• HSA ($200K): Invested aggressively in US equity — effectively a super-IRA with triple tax advantage.

At an assumed ordinary rate of 37% and LTCG+NIIT rate of 23.8%, the estimated annual tax drag on this $15M portfolio drops from roughly $65,000/year (naive proportional placement) to under $20,000/year (optimized) — a $45,000/year improvement that compounds into $1.6M over 20 years.

How an HNW-focused advisor coordinates this

Asset location is not a set-and-forget exercise. It shifts every time you:

• Contribute to or withdraw from any account
• Rebalance — selling in one account, buying in another changes where each asset class lives
• Convert traditional IRA funds to Roth (a Roth conversion itself is an asset location decision)
• Receive a concentrated-stock RSU vesting or option exercise that shifts your taxable account balance
• Open or close a trust account as part of estate planning

An HNW-focused fee-only advisor runs this as a quarterly or annual review, coordinating with your CPA (which accounts to draw from in which order) and estate attorney (trust account investment policy). Wirehouses typically manage each account in isolation; fee-only advisors who specialize in $5M+ portfolios build the cross-account view.