What Tax Rate Applies to a Failed 1031 Exchange?

A failed §1031 produces a tax bill that surprises investors who underestimated how stacked the federal and state regimes are on real-estate gain. The headline 20% capital gains rate is only one layer. The full bill — recapture, NIIT, and state tax included — typically runs 25-40% of the realized gain, with California cases pushing past 40%.

Federal Long-Term Capital Gains Brackets (2026)

For property held more than one year, the federal capital gains rate is tiered by taxable income:

• 0% rate: Single filers up to $48,350, MFJ up to $96,700 (approximate 2026 thresholds).
• 15% rate: Single $48,351 to $533,400, MFJ $96,701 to $600,050.
• 20% rate: Above the 15% thresholds.

Most investors with significant rental gains land in the 15% or 20% bracket. The 0% bracket rarely applies to investors who can afford to do §1031s in the first place.

Note that the rate is determined at the brackets, not by the gain amount alone. A taxpayer with $200K of ordinary income who recognizes $400K of capital gain in a single year will land most of that gain in the 20% bracket because the gain itself pushes total income across the threshold.

The 25% Depreciation Recapture Rate

Cumulative depreciation taken (or allowed, whether claimed or not) on the relinquished property is recaptured at up to 25% under IRC §1(h)(1)(E) on the failed exchange. The mechanics:

• Calculate the property's adjusted basis: original cost minus all depreciation taken.
• Calculate the gain: sale price minus adjusted basis.
• Allocate gain: first to depreciation recapture (up to cumulative depreciation), then to capital gain (the appreciation above original cost).
• Tax recapture portion at 25%; tax capital gain portion at the applicable LTCG rate.

For a long-held rental, depreciation can be substantial. A 27.5-year residential rental held for 10 years will have depreciated approximately 36% of the building portion's basis, producing recapture exposure that is often 30-50% of total gain.

3.8% Net Investment Income Tax (NIIT)

The Net Investment Income Tax under IRC §1411 adds 3.8% on top of the capital-gain and recapture portions for taxpayers with modified adjusted gross income above:

• $200,000 single filer.
• $250,000 married-filing-jointly.
• $125,000 married-filing-separately.

The 3.8% applies to the lesser of (a) net investment income or (b) the excess of MAGI over the threshold. For most failed-§1031 cases, the gain alone pushes MAGI well above the threshold, so the full 3.8% applies to the entire investment-income amount.

NIIT is in addition to the capital gain rate and recapture rate, not in lieu of either. So a taxpayer in the 20% LTCG bracket with NIIT applicability faces an effective federal rate of 23.8% on capital gain and 25% on recapture (NIIT does not stack on top of the 25% recapture rate, but it does on the LTCG portion).

State Rate Examples (CA, NY, TX, NV, FL)

State rate is the most variable layer. Common reference points:

• California: Top capital gains rate of 13.3% (12.3% + 1% mental-health surtax for high earners). California does not distinguish between long-term and short-term gain — both taxed at ordinary income rates up to 13.3%.
• New York: Top capital gains rate of 10.9% (state) plus 3.876% NYC for city residents = 14.776% combined. Hawaii's 11% top rate is similar.
• New Jersey: Top rate 10.75% plus nonresident-withholding considerations.
• Oregon: Top rate 9.9%.
• Massachusetts: Flat 5% capital gains.
• Texas: 0% — no state income tax.
• Nevada: 0% — no state income tax.
• Florida: 0% — no state income tax (separate documentary stamp tax applies at closing).
• Tennessee: 0% — no state income tax on wages or capital gains.

The state tax stacks on top of federal — there is no federal credit for state taxes paid on the same gain (the §901 foreign-tax-credit rules do not apply to state taxes).

Worked Example: $500K Gain, $150K Recapture in California

Take a representative case. An investor sells a California rental for $1.2M, with $500K of total gain ($150K of which is depreciation recapture, $350K of capital gain). The §1031 fails. The taxpayer is in the 20% federal bracket and subject to NIIT:

• Federal capital gain (long-term): $350,000 × 20% = $70,000.
• Federal depreciation recapture: $150,000 × 25% = $37,500.
• NIIT (on $350K capital gain only — NIIT does not stack on §1250 recapture): $350,000 × 3.8% = $13,300.
• California capital gains tax (on full $500K): $500,000 × 13.3% = $66,500.
• Total tax bill: $187,300.

Effective tax rate on the $500K gain: 37.5%.

For comparison, the same fact pattern in Nevada or Florida (no state income tax):

• Federal capital gain: $70,000.
• Federal depreciation recapture: $37,500.
• NIIT: $13,300.
• State tax: $0.
• Total: $120,800. Effective rate: 24.2%.

Same gain, $66,500 difference in tax bill — the cost of the state tax tier alone. This is one reason §1031 deferral is more valuable in high-tax states than in no-tax states. A successful §1031 in California defers a $187K bill; in Nevada it defers a $121K bill.

Simple 1031 LLC tracks every file's deadlines and identification status to prevent the failure scenario. We are a Qualified Intermediary and do not provide tax, legal, or investment advice — failed-exchange tax modeling and quarterly estimated-tax planning belong with your CPA.

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