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Options Income Tax 10 min read Updated

SPX vs SPY Options Tax
Section 1256 vs Equity Options

Two options that track the same index can leave you with very different after-tax income. Here is why, and what else changes between them.

Embark Funds

Embark Funds Research

Investor Education Series · October 2026

Quick answer

Are SPX options taxed differently from SPY options?

Yes. SPX options are listed options on a broad-based index, so they are Section 1256 contracts taxed 60% long-term and 40% short-term and marked to market at year end. SPY options are options on an ETF share, so they are equity options taxed under normal holding-period rules, which for most option selling means short-term rates. At the top bracket that is 30.6% vs 40.8% federal.

Key takeaways

  • 01SPX: Section 1256, 30.6% top federal rate. SPY: up to 40.8%.
  • 02SPX is European-style, cash-settled: no early assignment.
  • 03SPY options are American-style and deliver shares.
  • 04XSP offers SPX tax treatment at one-tenth the size.
At a glance
SPX taxSection 1256 (60/40)
SPY taxEquity option rules
SPX styleEuropean, cash-settled
SPY styleAmerican, physically settled
SizeSPX ≈ 10 × SPY
Small alternativeXSP (1/10 SPX)
01

The Short Answer

Are SPX options taxed differently from SPY options?

Yes. SPX options are listed options on a broad-based index, so they are Section 1256 contracts taxed 60% long-term and 40% short-term and marked to market at year end. SPY options are options on an ETF share, so they are equity options taxed under normal holding-period rules, which for most option selling means short-term rates. At the top bracket that is 30.6% vs 40.8% federal.

SPX options are also European-style and cash-settled, so they cannot be assigned early and never deliver shares. SPY options are American-style and physically settled. The trade-offs are contract size (SPX is about ten times SPY) and wider bid-ask spreads on some SPX strikes; XSP, the Mini-SPX, is one-tenth the size of SPX with the same tax treatment.

02

Side by Side

How do SPX and SPY options compare?

Feature SPX options SPY options
Underlying S&P 500 index SPDR S&P 500 ETF share
Tax treatment Section 1256: 60/40, marked to market Equity option: holding-period rules
Exercise style European (expiry only) American (any time)
Settlement Cash Shares
Contract size About 10× SPY 100 ETF shares
Dividend effect None (no shares delivered) Early assignment risk before ex-dividend
Wash sale exposure Section 1256 contracts are marked to market Wash sale rules can apply
03

After-Tax Premium

How much more do you keep with SPX options?

Chart

After-tax value of $50,000 in option premium, top bracket (2026)

SPY (short-term): $50,000 × (1 − 40.8%) = $29,600. SPX (60/40): $50,000 × (1 − 30.6%) = $34,700. Federal only. Source: 26 U.S.C. §§1256, 1411; own calculation

Calculator

SPX vs SPY after tax

Enter annual net option gains and your rates.

After tax: SPY (short-term)

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After tax: SPX (60/40)

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Extra kept with SPX

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04

Assignment

Why does exercise style matter?

American-style options can be exercised at any time. A short SPY call can be assigned the day before an ex-dividend date, and a deep in-the-money short SPY put can be assigned early, leaving you with shares and a margin balance. SPX options can only be exercised at expiry and settle in cash, which removes early assignment risk entirely. That is also why SPX is the standard instrument for box spread loans.

Where Embark fits

SPX trims the tax on option income, but you still run the options book. What could your stock target instead?

Run your ticker to see the income target on a position you already own.

  • No option account, strike selection or monthly rolling required to pursue income
  • §721 in-kind contribution of the stock you own: $0 tax at contribution
  • Targets 10%+ annual income; a target, not a guarantee, with a 3-year lock-up

Run the numbers

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05

When SPY Still Wins

When might SPY options be better?

Smaller accounts

One SPX contract controls roughly ten times the notional of SPY; XSP narrows the gap.

Tight spreads

SPY is one of the most liquid option markets, with penny-wide spreads on many strikes.

Tax-deferred accounts

In an IRA the tax difference does not matter.

Long-held positions

A long SPY option held over a year can qualify for long-term rates; Section 1256's 60/40 is then worse for gains.

06

Embark

Is there income without an options program?

SPX options make option income more tax-efficient, but you still need collateral and a monthly routine. Embark accepts appreciated stock in kind under §721, with $0 tax at contribution, and targets 10%+ annual income. Target, not guarantee; 3-year lock-up; accredited investors.

07

FAQ

Frequently asked questions

Are SPX options Section 1256?
Yes. They are listed options on a broad-based index, so they are nonequity options and Section 1256 contracts.

Are SPY options Section 1256?
No. Options on ETF shares are equity options.

Can SPX options be assigned early?
No. SPX options are European-style and can only be exercised at expiry.

What is XSP?
The Mini-SPX index option, one-tenth the size of SPX, with the same Section 1256 tax treatment and cash settlement.

Do wash sale rules apply to SPX options?
Section 1256 contracts are marked to market each year, which generally makes the wash sale rule irrelevant for them.

Are NDX and RUT options also Section 1256?
Yes. They are listed options on broad-based indexes.

08

Sources

Primary sources

Cite this article

Embark Funds Research. “SPX vs SPY Options Tax Section 1256 vs Equity Options.” Embark Funds, updated October 29, 2026. https://www.embarkfunds.com/insights/section-1256-vs-equity-options-tax

Not tax, legal or investment advice: This article is educational and is not tax, legal, investment or Medicare advice. Rules and dollar amounts change every year and depend on your facts. Work with a CPA or financial planner before acting. Embark income figures are targets, not guarantees. Contributed shares have a 3-year lock-up, and Embark is open to accredited investors only.

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