Tax-Loss Harvesting: The $1M–$5M Investor's Guide
Every time the market dips, investors with significant taxable accounts have an opportunity most retail investors miss: converting temporary paper losses into permanent tax savings — without changing their investment exposure. That's tax-loss harvesting.
At $1M–$5M in investable assets, a meaningful portion is likely in taxable brokerage accounts where TLH applies. Done systematically, it generates $1,000–$10,000+ per year in tax savings depending on portfolio size, volatility, and your effective capital gains rate. Use the calculator below to estimate your number.
Annual TLH Benefit Estimator
Conservative estimate based on long-run average harvest opportunities. High-volatility years (2020, 2022) can produce 2–4× more. Uses 2026 LTCG rates.1 Not investment advice.
How Tax-Loss Harvesting Works
- A position drops in value. Say you hold $80,000 in a total-market ETF that falls to $68,000 — a $12,000 paper loss.
- You sell it and realize the loss. That $12,000 realized loss can now offset capital gains elsewhere in your portfolio — or up to $3,000/year of ordinary income.2
- You immediately buy a similar (but not "substantially identical") security. A different total-market or S&P 500 ETF maintains your equity exposure.
- Your tax position improves; your investment position doesn't change. The deferred tax liability (embedded gain) transfers to the new position's cost basis, but you've captured a real cash-equivalent saving today.
At a combined 18.8% LTCG + NIIT rate, that $12,000 loss saves $2,256. On a $1.5M portfolio in an active harvesting year, opportunities like this occur three to five times.
Losses not used in the current year carry forward indefinitely and offset future gains.2 Investors who harvested aggressively in 2022 (when the S&P 500 fell 18%) often carried forward $30,000–$100,000 in losses that shielded gains for the following two or three years.
The Wash-Sale Rule: Where Investors Get Tripped Up
IRC § 1091 disallows the harvested loss if you buy a "substantially identical" security within 30 days before or after the sale — a 61-day window.3 The rule is broader than most investors realize:
| Trap | What goes wrong | How to avoid it |
|---|---|---|
| IRA or Roth IRA reinvestment | Your taxable account sells VTSAX at a loss; your IRA auto-reinvests dividends into VTSAX the same week. The loss is disallowed — permanently (not just deferred) | Pause dividend reinvestment in all retirement accounts for 31 days around a harvest event |
| Spouse's accounts | You harvest a loss in your taxable account; your spouse's 401(k) buys the same fund the next day | Coordinate across all household accounts before harvesting |
| Automatic DRIP | Monthly dividends in your own taxable account buy back the security you just harvested | Disable DRIP before harvesting; re-enable after the 31-day window closes |
| "Similar enough" confusion | You sell VOO and buy IVV — both track the S&P 500 exactly. Likely substantially identical | Switch to a different index (total market vs. S&P 500) rather than just a different fund family |
Common ETF Swap Pairs
You need a substitute that maintains market exposure but tracks a different enough index to avoid the wash-sale rule. Lower-risk pairings use clearly different indexes:
| Position sold | Conservative substitute | Why it's different |
|---|---|---|
| VTI / VTSAX (Total US Market) | SCHB (Dow Jones Broad Market Index) | Different index, near-identical exposure |
| VOO / IVV / SPY (S&P 500) | VTI or SCHB (Total US Market) | Different index — adds small-cap exposure |
| VXUS (Total International) | EFA + EEM combination | Separate developed/EM funds, different constructs |
| BND (Total Bond) | AGG (iShares Core US Aggregate) | Different fund family; same index — use with care; some advisors prefer a different duration or credit ETF |
When to Harvest: Four Trigger Points
- Market corrections of 5–15%. The highest-value windows. A 10% dip on $1M in equities creates $100,000 in paper losses — capture as much as practical before the recovery.
- October–December. Year-end is peak TLH season. By October you know your gain picture for the year and can size harvests to offset specific gain amounts.
- After a large capital gain event. Sold a concentrated stock position? Received a large K-1 distribution? Harvest losses first — and check your carryforward balance.
- During rebalancing. If you're selling overweight positions anyway, coordinate with your loss positions to capture the tax benefit from trades you'd make regardless.
Manual TLH vs. Robo vs. Direct Indexing
Manual ETF swapping works for any investor with any brokerage account. The limitation is granularity: you can only harvest a fund's total loss, not the losses within it. In an up year where 40% of stocks are still individually down, manual TLH misses all of those intra-fund losses.
Direct indexing solves this by owning individual stocks in proportion to the index. You can harvest the individual losers — and replace them with similar stocks — even when the index itself is up. Research from institutional managers suggests this produces 2–4× more annual harvest opportunities than manual ETF swapping.4
| Approach | Minimum | Annual harvest rate (est.) | Best for |
|---|---|---|---|
| Manual ETF swaps | None | 0.5–1.0% of equity value | $500K–$1.5M taxable; requires active monitoring |
| Robo-advisor TLH | Minimal | 0.5–1.0% | Set-it-forget-it; limited tax sophistication at this asset level |
| Direct indexing | $100K–$500K typical | 1.5–2.5% | $1M+ in taxable; automated harvesting justifies 0.25–0.40% management fee |
TLH and the Roth Conversion Interaction
One underappreciated pairing: harvesting capital losses in the same year you do a Roth conversion. The Roth conversion creates ordinary income; capital losses offset only capital gains (and $3,000 of ordinary income). But they reduce the MAGI-sensitive cliff calculations — IRMAA, ACA subsidies, 0% LTCG band — in ways that can be worth a separate planning session. Coordinate both strategies before year-end.
Related guides on this site
- Tax-efficient asset location — minimize taxable events before they happen by putting the right assets in the right accounts
- Direct indexing guide — automated TLH at the individual stock level for $1M+ taxable accounts
- Concentrated stock strategies — harvesting losses to offset large position sales
- Roth conversion planning — coordinate TLH with conversions to manage MAGI and IRMAA exposure
Get your TLH strategy reviewed
A fee-only advisor can audit your current taxable positions, identify harvesting windows before year-end, and integrate TLH with your Roth conversion and asset-location strategy. Free match, no obligation.
Sources
- 2026 long-term capital gains rates: 0% (up to $49,450 single / $98,900 MFJ), 15% (up to $545,500 single / $613,699 MFJ), 20% (above). NIIT: 3.8% on NII above $200,000 single / $250,000 MFJ per IRC § 1411 (not inflation-indexed). Source: IRS Rev. Proc. 2025-67 and IRS Topic 559 — NIIT.
- Capital loss offset rules: IRC § 1211(b) limits net capital loss deductions against ordinary income to $3,000/year for individuals. IRC § 1212(b) allows unused losses to carry forward indefinitely. IRS Topic 409 — Capital Gains and Losses.
- Wash-sale rule: IRC § 1091. Loss disallowed if substantially identical security purchased within 30 days before or after the sale (61-day window). Applies across IRAs and spousal accounts. IRS Pub. 550 — Investment Income and Expenses.
- Direct indexing tax-alpha research: Parametric Portfolio Associates and AQR Capital Management studies estimate systematic direct-indexing TLH generates 1–2% in additional annual after-tax value relative to standard ETF portfolios, with the premium higher in volatile markets. Parametric Portfolio Associates; Arnott et al., AQR Capital Management.
All tax values verified as of April 2026 against IRS Rev. Proc. 2025-67 and current IRC provisions.