Tax-Loss Harvesting for Wealthy Investors

What is tax-loss harvesting?

Tax-loss harvesting is selling a security at a loss in your taxable account and immediately reinvesting in a similar (but not identical) security. You stay fully invested, but the realized loss offsets capital gains elsewhere — reducing your tax bill this year.

Harvested losses offset gains in this order: short-term gains first (taxed at ordinary rates, up to 37% in 2026), then long-term gains (15%–20%), then up to $3,000 of ordinary income per year. Any remaining loss carries forward indefinitely.

Why it matters at $2M–$20M

The math scales directly with taxable account size. At $500K, harvesting 1.5% generates $7,500 in offsettable losses — meaningful but modest. At $3M: $45,000. At $10M: $150,000. High earners also face the 3.8% Net Investment Income Tax (NIIT) on top of the base LTCG rate, making each harvested dollar more valuable.

Estimate your annual tax-loss harvesting benefit

The wash sale rule — the main trap

You cannot buy a "substantially identical" security within 30 days before or after a loss sale. Violate it and the IRS disallows the loss entirely.³

The practical workaround: substitute with a highly correlated but legally distinct security. Common ETF pairs:

• Total US market: Sell VTI → buy ITOT or SCHB
• S&P 500: Sell SPY → buy IVV or VOO
• International: Sell VXUS → buy IXUS or SPDW+SPEM
• US bonds: Sell BND → buy AGG

Hold the substitute for 31+ days, then switch back if you prefer the original fund. You've captured the loss without changing your market exposure in any meaningful way.

Direct indexing: the upgrade for $500K+ taxable accounts

Standard ETF harvesting has a ceiling: you can only harvest the full ETF position, not its components. A year when VTI is up 12% but 40% of the underlying stocks are down? You can't touch those individual losses.

Direct indexing removes that ceiling. Instead of owning an ETF, you own 300–500 individual stocks that replicate the index. The advisor can harvest any single security in a loss position while maintaining full exposure to the index's return.

The result: annual harvest rates of 1.5%–2.5% or higher, versus 0.5%–1% from ETF-level harvesting. Over 15–20 years on a $5M account, this typically adds 0.5%–1%+ per year in after-tax return — comparable to what a fee-only advisor charges in total.

Access has broadened: Fidelity Managed Accounts starts at $250K per strategy; Parametric (via advisors), Vanguard Personalized Indexing, and Aperio are accessible at $250K–$500K. The complexity overhead still makes it best-suited to taxable accounts above $500K.

Key trade-offs: tracking error vs. the index (usually small but real), complexity requiring custodian support, and embedded gains from any prior ETF you'd need to sell on transition.

Integrating harvesting with your full tax picture

The biggest harvesting gains come from coordination, not just mechanical execution:

• Year-end planning: Harvest before December 31 to offset a business asset sale or large LTCG realization from the same year
• Roth conversion coordination: Harvested losses can offset income created by a Roth conversion — letting you convert more without moving into the next bracket. See our Roth conversion guide for how this interacts with RMD planning.
• Estate integration: Assets held until death receive a stepped-up basis, eliminating embedded gains entirely. A long-held, highly appreciated position may be better donated to a DAF or held to death than harvested. See our estate planning guide for how stepped-up basis fits into a $2M–$20M estate plan.
• Charitable giving: Contributing appreciated securities to a donor-advised fund avoids LTCG entirely — making loss harvesting unnecessary for those assets and potentially more valuable elsewhere.

Why this is hard to DIY at $2M+

The theory is simple. Execution across a real portfolio is not. At $3M–$10M spread across taxable accounts, multiple IRAs, possibly a revocable trust, and a spouse's accounts:

• Wash sale violations require monitoring every account in real time, not just yours
• Harvest decisions must be coordinated with your tax bracket, projected income, year-end planning, and Roth conversion strategy simultaneously
• Transitioning to direct indexing requires cost-basis analysis and a multi-year plan to avoid triggering the gains you're trying to defer

A fee-only advisor with direct indexing access typically charges 0.25%–0.65% of assets. At $3M, that's $7,500–$19,500/year. If harvesting alone generates $10,000–$18,000 in annual tax savings — plus Roth conversion timing, estate coordination, and insurance review — the math typically holds. The fee-only vs. 1% AUM comparison runs the numbers in detail.

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