Capital Gains & Investments
2026 U.S. Tax Rules — Verified Brackets & Strategy

Overview

Investment taxation is fundamentally different from wage taxation. The U.S. tax code provides preferential rates for long-term capital gains and qualified dividends — but imposes a 3.8% NIIT surtax on high-income investors, separate special rates on collectibles and real estate depreciation recapture, and a complex set of loss rules including the wash sale restriction.

In 2026, the investment tax landscape is governed by the OBBBA-permanent rate structure from Rev. Proc. 2025-32. The exact LTCG bracket thresholds are $49,450 (single) and $98,900 (MFJ) for the 0% rate — not the approximate figures that circulated in prior guidance. Understanding these numbers precisely matters because LTCG stacks on top of ordinary income, and a few thousand dollars of difference in threshold placement can determine whether a capital gain is taxed at 0%, 15%, or 15% plus 3.8% NIIT.

Short-Term vs. Long-Term Capital Gains

The holding period at the time of sale — not the intention at the time of purchase — determines whether a gain is short-term or long-term. The one-day difference around the 12-month mark is consequential: selling on day 365 is short-term; day 366 is long-term.

2026 LTCG Brackets — Exact Figures

All thresholds per IRS Rev. Proc. 2025-32. These are taxable income thresholds — measured after the standard or itemized deduction, not gross income. A single filer with $65,550 of gross income and the $16,100 standard deduction has $49,450 of taxable income — sitting exactly at the top of the 0% bracket.

Single Filers

Married Filing Jointly

Head of Household

Special Rates: Collectibles, §1250 Recapture, QSBS

Not all long-term gains are taxed at the standard 0/15/20% schedule. Three important categories carry different rates that often surprise investors unfamiliar with the special provisions.

Qualified Dividends

Qualified dividends are taxed at the same preferential 0%, 15%, and 20% rates as long-term capital gains. Non-qualified (ordinary) dividends are taxed at the taxpayer's marginal ordinary income rate — potentially as high as 37%.

Requirements for Qualified Dividend Treatment

• Issuer: Must be a U.S. corporation or a qualified foreign corporation (those in a U.S. tax treaty country or whose shares are traded on a U.S. exchange).
• Holding period: The shareholder must hold the stock for more than 60 days during the 121-day period beginning 60 days before the ex-dividend date. This is the most commonly violated requirement — investors who turn over positions quickly may lose qualified status.
• Not a REIT dividend: Most dividends from REITs are ordinary income, not qualified — they do not benefit from the 0/15/20% rate structure. REIT dividends may qualify for the 20% QBI deduction for pass-through income if the investor is under certain income thresholds.
• Not a money market or bond fund dividend: Interest paid by bond funds or money market funds is ordinary income, not a qualified dividend — regardless of how it is labeled on brokerage statements.

NIIT — The 3.8% Surtax

The Net Investment Income Tax (NIIT) under IRC §1411 applies a 3.8% surtax on the lesser of: (1) net investment income, or (2) the amount by which MAGI exceeds the threshold. The NIIT thresholds have not been inflation-adjusted since the ACA enacted them in 2013 — meaning bracket creep continuously expands exposure.

NIIT Calculation

• NIIT = 3.8% × the lesser of: (a) net investment income (NII), or (b) the excess of MAGI over the applicable threshold.
• Example: MFJ filer with MAGI $280,000 and NII $40,000. Excess MAGI = $30,000. NII = $40,000. Lesser = $30,000. NIIT = $30,000 × 3.8% = $1,140.
• NII includes: capital gains, dividends, interest, rental income (passive), and passive business income. Does NOT include: W-2 wages, self-employment income, active business income, Roth IRA distributions, or municipal bond interest.

Tax-Loss Harvesting

Tax-loss harvesting is the strategic sale of investments with unrealized losses to generate capital losses that offset taxable gains. The harvested loss reduces both the capital gains tax rate and the 3.8% NIIT on net gains — a dual benefit at every dollar of net gain reduced.

Mechanics

• Capital losses first offset capital gains dollar-for-dollar. Short-term losses offset short-term gains first (more valuable — saves ordinary income rates). Long-term losses offset long-term gains first.
• If losses exceed gains: the excess offsets up to $3,000 of ordinary income per year (any filing status). Losses above $3,000 carry forward indefinitely with no expiration and no interest cost on the deferred deduction.
• A harvested loss is not a permanent tax elimination — it resets the cost basis of the replacement position lower, creating a larger future gain. The benefit is the time value of tax deferral (paying the tax later, at current rather than future dollars).

When Harvesting Produces the Most Value

• In years with large realized capital gains — a business sale, real estate transaction, or large portfolio rebalancing. The harvested loss reduces the net taxable gain immediately.
• Near the NIIT threshold ($200K/$250K MAGI) — reducing NII by $10,000 through harvested losses saves $380 in NIIT plus the LTCG rate on $10,000.
• In high-income years at the 37% ordinary income bracket — if any losses can be offset against short-term gains or ordinary income, the savings rate is highest.

Wash Sale Rules — IRC §1091

A wash sale occurs when an investor sells a security at a loss and purchases a "substantially identical" security within 30 days before or after the sale. The loss deduction is disallowed — it is not permanently lost, but is added to the basis of the repurchased shares and deferred to a future sale.

What "Substantially Identical" Means

• Clearly identical: Selling a stock and buying the same stock back within 30 days. Selling a mutual fund and immediately buying the same fund class. No deduction allowed.
• Clearly not identical: Selling SPY (SPDR S&P 500 ETF, issued by State Street) and buying IVV (iShares Core S&P 500 ETF, issued by BlackRock) — these track the same index but are issued by different providers and are legally separate securities. IRS has not ruled these substantially identical. This is the standard loss-harvesting replacement approach.
• Gray area: Two ETFs tracking slightly different versions of the same index (e.g., different S&P 500 index licensors) are generally considered not identical. Options on a security may be substantially identical to the security itself — selling a stock at a loss and buying call options on the same stock may trigger a wash sale.

Crypto and Wash Sale Rules — 2026

Wash Sale Across Accounts

• The wash sale rule applies across all accounts — including IRA accounts. Selling a stock at a loss in a taxable account and buying the same stock in an IRA within 30 days triggers a wash sale. The loss is permanently disallowed because the basis cannot be added to IRA assets, which have different tax treatment.
• Spouse's accounts also matter — a sale by one spouse and a purchase of the same security by the other spouse within the 30-day window can trigger a wash sale between the two accounts.

Mutual Fund Distribution Traps

Mutual funds must distribute substantially all realized capital gains and dividends to shareholders each year — and shareholders owe tax on these distributions whether or not they sold any shares. This creates a unique trap for new investors and a chronic tax drag for long-term holders of actively managed funds.

• Year-end distribution trap: Mutual funds typically distribute capital gains in November or December. An investor who buys shares on December 1 and receives a capital gain distribution on December 15 owes tax on that distribution — even though they held the shares for only two weeks and did not participate in the gains that generated it. Check fund distribution schedules before purchasing in Q4.
• Tax you did not earn: The distribution reduces the fund's NAV by the distribution amount — so the investor's total position value is unchanged, but they now have a taxable event. The cost basis is increased by the distribution amount received, which reduces the eventual capital gain — but the tax timing is unfavorable.
• Actively managed funds vs. index funds: High-turnover actively managed funds generate larger capital gain distributions because the manager buys and sells frequently, realizing gains that must be distributed. Index funds have much lower turnover and smaller distributions. In a taxable account, this difference in tax drag compounds significantly over time.

ETF Tax Efficiency

Exchange-Traded Funds (ETFs) are significantly more tax-efficient than mutual funds in taxable accounts, primarily because of the in-kind creation and redemption mechanism that allows the ETF to exchange low-basis securities with authorized participants without triggering a taxable sale inside the fund.

• In-kind redemption mechanism: When large investors (authorized participants) redeem ETF shares, they receive the underlying securities in-kind — not cash. The fund manager selects the lowest-basis securities for these in-kind exchanges, effectively purging embedded gains without a taxable event inside the fund. This is the primary structural reason ETFs rarely distribute capital gains.
• Practical impact: Most broad equity ETFs distributed zero capital gains in 2025 — while comparable actively managed mutual funds distributed 5–15% of NAV in taxable distributions. For a $500,000 position, a 10% distribution from a mutual fund generates $50,000 in taxable income; the equivalent ETF position generates near zero.
• Exceptions: Precious metals ETFs structured as grantor trusts (GLD, SLV) and some commodity ETFs do not benefit from in-kind redemption and may distribute gains. Currency ETFs and leveraged/inverse ETFs may generate taxable distributions. Always verify the fund's distribution history before placing in a taxable account.
• Tax lot accounting: ETF shareholders still owe tax on their own sales — the ETF structure only eliminates distributions from other shareholders' transactions, not from the investor's own sales of ETF shares.

Cost Basis Methods

When selling a partial position in a security, the cost basis method selected determines which shares are considered sold — and therefore the amount of gain or loss recognized. Selecting the optimal method is one of the simplest and most consistent tax planning techniques available to investors.

Step-Up in Basis

One of the most powerful tax benefits in the U.S. system: when a taxpayer inherits assets, the cost basis is "stepped up" to the fair market value at the decedent's date of death. All pre-death appreciation is permanently eliminated from the beneficiary's taxable gain.

• A stock purchased by the decedent for $10,000, worth $200,000 at death: the heir's basis is $200,000. Selling immediately produces zero capital gain on the $190,000 of pre-death appreciation.
• Inherited assets are automatically treated as long-term holdings regardless of how long either the decedent or the heir held them — even a sale on the day of inheritance receives LTCG treatment.
• With the $15M federal estate exemption (OBBBA permanent): Most estates owe no federal estate tax. The step-up in basis is therefore a "free" benefit for most families — eliminating embedded capital gains without any offsetting estate tax cost. Holding appreciated assets until death (to capture the step-up) is generally more tax-efficient than gifting them during life, which carries over the donor's original low basis to the recipient.
• Gifting vs. holding for step-up: Giving appreciated stock to heirs during life transfers the low basis — they pay capital gains tax on the full appreciation. Holding the same stock until death and leaving it to the same heirs eliminates the entire capital gains liability through the step-up. For families below the $15M estate exemption, the step-up-at-death strategy is almost always superior to lifetime gifting of appreciated assets.

Asset Location Strategy

Asset location is the discipline of placing each type of investment in the account type that minimizes its annual tax cost. The same overall allocation generates less tax when assets are strategically placed across taxable, traditional (pre-tax), and Roth (tax-free) accounts.

Step-by-Step Guidance

Practical Examples

Common Mistakes

• 1 Selling before the 12-month mark without calculating the tax cost. Converting a long-term gain to short-term by selling one day early can cost $15,000–$30,000+ in additional federal tax on a $100,000 gain at the 37% bracket. Always verify the exact holding period before executing a sale.
• 2 Using approximate LTCG bracket figures for planning. The 2026 LTCG thresholds are exactly $49,450 (single) and $98,900 (MFJ) — not "$47K" or "$94K." Using rounded or approximate figures for gain harvesting calculations can result in unintended tax at a higher rate than planned.
• 3 Triggering a wash sale across retirement accounts. Selling a security at a loss in a taxable account and repurchasing the same security in an IRA or 401(k) within 30 days is a wash sale — and the loss is permanently disallowed because it cannot be added to IRA basis. Never repurchase the same security in any account within the 30-day window.
• 4 Buying mutual funds in a taxable account before year-end capital gain distributions. Check fund distribution estimates in October and November before buying. Purchasing shares just before a large December distribution results in a taxable gain on income you did not earn.
• 5 Holding high-turnover actively managed funds in taxable accounts. These funds distribute capital gains annually regardless of the investor's own transactions. Moving them to tax-deferred accounts and replacing with ETFs in taxable accounts can eliminate this recurring tax drag with no change to overall allocation.
• 6 Not using the 0% LTCG bracket in low-income years. The 0% bracket covers $49,450 (single) / $98,900 (MFJ) in taxable income. In low-income years — early retirement, gap year, business loss year — realizing long-term capital gains within this space and resetting basis is a zero-cost opportunity to permanently eliminate future capital gains tax.
• 7 Assuming all gold and precious metals investments are taxed at LTCG rates. Physical gold, silver, and precious metals are collectibles taxed at up to 28% — not the standard 0/15/20% LTCG schedule. Gold and silver ETFs structured as grantor trusts (GLD, SLV) are also collectibles and subject to the 28% rate, regardless of how they are listed on brokerage statements.
• 8 Gifting appreciated assets to heirs during life when the estate is below $15M. Gifted assets carry over the donor's original low basis to the recipient. Assets inherited at death receive a step-up to FMV, permanently eliminating the embedded capital gain. For estates below the $15M federal exemption, holding appreciated assets until death and bequeathing them is almost always more tax-efficient than giving them away during life.

Hanmi CPA Insight