The Silver Lining: Direct Indexing & Tax-Loss Harvesting

The Silver Lining: Direct Indexing & Tax-Loss Harvesting

Stop buying ETFs. Why owning the S&P 500 directly allows you to generate “Tax Alpha” by harvesting losses even when the market is at an all-time high.

Dec 28, 2025 Code Authority: Team BMT TAX TIPS > PORTFOLIO MANAGEMENT

Executive Summary

  • The Concept (Harvesting): When a stock drops, you sell it to realize a loss. This loss offsets your capital gains (from other winners) and up to $3,000 of ordinary income. To stay invested, you immediately buy a similar (but not identical) stock.
  • The Vehicle (Direct Indexing): If you buy an S&P 500 ETF (SPY), you can only harvest losses if the entire index falls. But if you use Direct Indexing (owning all 500 stocks individually), you can harvest losses on the 150 stocks that are down, even if the index itself is up 10%.
  • Tax Alpha: This micro-management creates “Tax Alpha”—an additional **1% to 2% annual after-tax return** simply by reducing your tax bill, without taking any extra market risk.

The Wash Sale Rule

The Trap: If you sell a security at a loss and buy a “substantially identical” security within 30 days before or after the sale, the IRS disallows the loss.
👉 The Fix: Do not sell Coke and buy Coke back. Sell Coke and buy Pepsi. They are correlated (sector peers) but not “substantially identical.” This maintains your market exposure while banking the tax loss.

Mechanic: Unbundling the ETF

+1.5%
Tax Alpha
Granularity
500 Positions
Auto-Swap
Software Driven
30 Days
Wash Sale Avoid

Simulation: Bull Market Scenario (S&P 500 is UP +10%)

Tax Losses Generated
ETF Holder (SPY)$0 Losses Harvested
The index is up. You cannot claim a loss. You pay full tax on any gains.
Direct Indexing$15,000 Losses Harvested
Even though index is up, Energy/Tech sectors dipped. Losers sold & replaced.
Tax Savings (at 40%)+$6,000 Cash Saved
The $15k loss offsets other gains, saving $6k in actual taxes.
Feature Mutual Funds ETFs Direct Indexing (SMA)
Tax Efficiency Low (Cap Gains Distributions) High (Creation/Redemption) Maximum (Individual Lots)
Harvesting Scope None Index Level Only Security Level (Granular)
Customization None None High (e.g., Exclude ESG/Tobacco)

Volatility is the price of admission for returns, but tax-loss harvesting turns that volatility into a tax asset. In a Direct Indexing account, a market correction is just a ‘harvesting season.'”

Essential Resources

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