FTX Loss Tax Deduction: 2026 Status and Three Paths to Claim It

TLDR

FTX customers can claim a tax loss for their lost crypto. Three paths: (1) capital loss at sale or determination of worthlessness (most conservative, limited to $3K/yr against ordinary income), (2) §165 theft loss deductible against ordinary income if you can show theft occurred (broader deduction, requires meeting Code §165(e) elements), or (3) §165 Ponzi-scheme safe harbor under Rev. Proc. 2009-20 (75-95% of loss deductible in the year of “discovery” if the activity is investigated by SEC/DOJ for fraud). The bankruptcy proceeding affects timing — filing a proof of claim may preserve a “reasonable prospect of recovery” that disqualifies the theft-loss claim. Most ETS-client engagements analyze the specific facts

position memo before deciding.

In this guide, you’ll learn:

See the three deduction paths — capital loss, §165(e) theft loss, Rev. Proc. 2009-20 Ponzi safe harbor
Understand how the FTX bankruptcy distribution (90%+ recovery) affects each path
Work through four worked scenarios from $10K retail loss to $5M whale loss
Recognize what’s still uncertain (discovery year, “fixed and determinable” timing, USD vs. crypto basis allocation, state conformity)
Get the standard ETS workflow — reconstruct deposits, document claim, position memo, return implementation, audit-defense file

#Quick context

FTX collapsed in November 2022, filed Chapter 11 bankruptcy. Approximately $8B-$10B+ of customer funds were missing. Founder Sam Bankman-Fried convicted on multiple counts of fraud in November 2023.

For affected customers, this is the largest crypto-related tax-loss event in U.S. history. By late 2024-2025, the bankruptcy is paying out customers a percentage of pre-collapse value (estimates range 90-118%+ depending on case posture, paid in USD at petition-date prices — meaning customers get back roughly the November 2022 USD value, not the current value of their lost crypto).

This creates a complex tax picture. Was the loss “theft” or just “investment loss”? When does the loss “happen” for tax purposes? Does receiving a partial bankruptcy distribution affect the deduction?

#The three claim paths

The three paths differ on how much you can deduct, what form you file, and how much IRS attention they draw. Here’s the comparison at a glance.

Three ways to claim an FTX loss
	Capital loss	§165(e) theft loss	§165 Ponzi safe harbor
Deduction limit	$3K/yr vs. ordinary income (offsets capital gains first)	Ordinary income, no cap	Ordinary income, 75-95% of loss
Form	Form 8949 / Schedule D	Form 4684	Form 4684 + safe-harbor election
Best for	Small losses; offsetting other capital gains	Large losses; strong fraud evidence	Rev. Proc. 2009-20 fact pattern; large losses
Audit risk	Lowest	Higher (theft position)	Higher (Ponzi characterization)

#Path 1: Capital loss (most conservative)

The simplest treatment: customer’s deposit was a personal property investment that became worthless or was sold at a loss.

Mechanics:

Determine cost basis (your purchase price + fees of the crypto deposited at FTX)
Determine date of loss recognition (typically when worthlessness was determined, or when partial recovery was finalized)
Calculate capital loss = cost basis − amount recovered (if any)
Report on Schedule D / Form 8949
Long-term or short-term based on hold period

Limits:

Capital losses offset capital gains first
Excess loss up to $3,000/yr offsets ordinary income
Remaining loss carries forward to future years

Best for:

Customers with significant capital gains in other years (to offset)
Customers wanting the simplest, lowest-audit-risk treatment
Smaller losses (under $20K where $3K/yr offset still resolves it in reasonable time)

#Path 2: §165(e) theft loss

If customer funds were stolen by FTX management, the loss may qualify as a theft loss under IRC §165(e).

Requirements:

Occurrence of a theft (under state criminal law)
Quantifiable loss
Date taxpayer discovered the theft

Mechanics:

Deductible against ordinary income (no $3K/yr cap)
Reported on Form 4684 (Casualty and Theft Losses)
Subject to TCJA limitations: pre-TCJA hobby-type theft losses were eliminated, but investment theft losses remain deductible
“Discovery date” determines the tax year — typically the year of the theft discovery, not the year FTX failed

Strategic considerations:

A theft-loss claim creates a position that the FTX collapse was a “theft” (not just investment failure)
The SBF conviction strengthens this argument
Filing a proof of claim in bankruptcy may impact eligibility — if you have a “reasonable prospect of recovery,” the theft loss is reduced by the recovery amount

Best for:

Large losses where capital-loss $3K/yr offset would take many years
Customers with strong evidence of fraud at FTX management level
Customers whose tax preparer / attorney is comfortable taking the position

#Path 3: §165 Ponzi-scheme safe harbor (Rev. Proc. 2009-20)

For losses qualifying as Ponzi-style fraud, Revenue Procedure 2009-20 provides a streamlined safe harbor:

Mechanics:

75% of qualified loss deductible in year of discovery if customer is pursuing recovery (lawsuit, claim, etc.)
95% of qualified loss deductible in year of discovery if customer has waived all recovery
Reported on Form 4684 with specific safe-harbor election
Deductible against ordinary income (not capital-loss limited)
“Discovery year” is the year of the indictment / charges by federal authorities (or year of bankruptcy in some interpretations)

Eligibility:

The lead figure must be charged or convicted of a fraud crime (SBF was)
Must be a “qualified investor” under Rev. Proc. definition (most retail customers qualify)
Must follow the procedural elections required

Best for:

Customers fitting the Rev. Proc. 2009-20 fact pattern
Large losses where 75-95% of the loss in year of discovery dramatically improves tax position
Customers comfortable with the Ponzi-scheme characterization

#The bankruptcy proceeding complication

FTX’s bankruptcy is paying out customers a significant percentage of pre-collapse USD value. This affects all three paths:

For capital loss: the recovery reduces the deductible loss. You only deduct the net (cost basis − recovery).

For §165(e) theft loss: the recovery creates a “reasonable prospect of recovery” that historically disqualified the loss. With substantial recovery happening, the IRS may treat the FTX loss as not yet “fixed and determinable” until recovery is finalized.

For Ponzi safe harbor: the recovery amount affects whether you elect 75% or 95% — you’re “pursuing recovery” if you filed a proof of claim. Rev. Proc. 2009-20 specifically contemplates this.

Operational guidance for 2025-2026:

For ETS clients with FTX losses, the standard approach:

Document the original deposit (cost basis, dates, currency, USD value)
Document the bankruptcy distribution (date received, amount, percentage of claim)
Determine the net loss (cost basis − recovery)
Choose the path: position memo evaluating capital-loss vs. theft-loss vs. Ponzi-safe-harbor based on specific facts + risk tolerance
File the position: Form 8949 (capital) or Form 4684 (theft/Ponzi) on the appropriate year’s return
Maintain documentation: bankruptcy proof of claim, account statements, settlement statements

#Common scenarios

Here’s how the path choice plays out across four real loss sizes. Net loss is cost basis minus what the bankruptcy recovered.

Path choice by loss size
	Your situation	Net loss	Recommended path
$10K loss, recovered $9K	$1K	Capital loss	Report on Form 8949 in year of recovery; offset gains, or $1K vs. ordinary income.
$150K loss, recovered $130K	$20K	Theft loss	$20K vs. ordinary income in year of discovery, vs. ~6+ years of $3K capital-loss offsets.
$5M loss, recovered $4.5M	$500K	Ponzi safe harbor	~$375K via 75% election in year of SBF conviction; capital loss would take 166 years.
$50K loss, no claim filed	$50K	Theft loss (stronger)	Potential full $50K theft loss (no reasonable prospect of recovery) — but not filing a claim was a costly mistake.

#Scenario 1: Small retail customer, $10K loss, recovered $9K

Total loss: $1K (cost basis $10K − recovery $9K). Capital-loss treatment is straightforward. Report as long-term capital loss on Form 8949 in year of recovery. $1K offset against capital gains; if no gains, $1K against ordinary income.

#Scenario 2: Mid-size investor, $150K loss, recovered $130K

Total loss: $20K. Capital-loss path: $3K/yr against ordinary income, with carryforwards lasting ~6+ years (assuming no capital gains to offset against). Theft-loss path: $20K deductible against ordinary income in year of discovery (better tax outcome).

#Scenario 3: Whale, $5M loss, recovered $4.5M

Total loss: $500K. Capital-loss path is slow ($3K/yr means 166 years of $3K offsets). Theft-loss or Ponzi-safe-harbor required for meaningful current deduction. Likely 75% Ponzi safe-harbor election in year of SBF conviction (2023) = $375K deduction.

#Scenario 4: Customer who never filed proof of claim

Cost basis $50K, no recovery. Theft-loss claim arguably stronger (no “reasonable prospect of recovery” because you’ve waived). Could potentially claim full $50K theft loss in year of discovery.

But strategically: 90%+ recovery from FTX bankruptcy suggests value should have been claimed. Not filing a proof of claim was a costly mistake for most customers.

#What’s still uncertain

Several FTX-specific tax questions remain unsettled:

1. The “discovery year” for §165(e). Was the discovery November 2022 (FTX collapse)? November 2023 (SBF conviction)? When the bankruptcy plan was confirmed? Different years produce different tax outcomes.

2. Whether the bankruptcy is “complete enough” to determine the loss. Per §165, the loss must be “fixed and determinable.” With ongoing recovery, the loss isn’t truly final until recovery completes.

3. Allocation between USD basis and crypto basis. If you deposited 1 BTC at $20K but FTX’s bankruptcy values it at petition-date USD ($18K at filing), how do you reconcile the basis vs. recovery?

4. State tax conformity. Some states conform to federal §165 treatment. Some don’t. State analysis is separate.

The IRS has not issued specific FTX guidance (as of late 2025). Expect formal guidance over time, similar to the Madoff Ponzi guidance issued after that fraud.

#What ETS does for FTX-affected clients

For ETS clients with FTX exposure:

1. Reconstruct deposit history. Pull all deposits to FTX (dates, amounts, asset types, USD values at deposit). Tools like CoinTracker can help recover this.

2. Document the bankruptcy claim. Proof of claim filed, distribution received, current claim status.

3. Position memo. Written analysis of which of the three deduction paths fits the specific facts. Conservative position vs. aggressive position laid out with citations.

4. Tax-return implementation. File the appropriate forms in the appropriate years. Amended returns where needed to claim losses in earlier years.

5. Maintain audit-defense file. Documentation of every decision + supporting authority. If the IRS challenges, the response is ready.

Standard engagement scope for FTX-loss positioning: $2K-$5K depending on complexity + whether amended prior-year returns are needed.

#Common questions

Should I have filed a proof of claim? Yes. Filing a proof of claim is how you participate in the bankruptcy + receive any distribution. Even if it complicates the theft-loss position, the recovery is meaningful (90%+ for most customers).

What about FTX-EU customers vs. US customers? The U.S. and offshore FTX entities have separate bankruptcy proceedings. Recovery rates may differ. Tax treatment for U.S. taxpayers is the same regardless of which entity held the funds.

Can I deduct losses from Celsius / Voyager / BlockFi too? Similar analysis but each case is different. Celsius bankruptcy + Voyager bankruptcy + BlockFi bankruptcy each had different fact patterns (no fraud convictions for those leaders; recovery percentages vary).

Does the loss affect my future-year crypto cost basis? For tokens you DIDN’T lose (held elsewhere), no. For the FTX tokens specifically, the loss is recognized + the basis is zeroed when recovered.

What if my account had multiple cryptos? Treat each asset separately. Cost basis for each, fair value of recovery allocated to each based on the bankruptcy’s valuation approach.

Is this still a high-audit-risk position? Theft loss + Ponzi safe-harbor claims do attract IRS attention, especially when claimed without solid documentation. Capital loss is the lowest-risk treatment. For larger claims, professional preparation + position memo is critical.

If you have FTX losses (or losses from Celsius, Voyager, BlockFi, or similar crypto bankruptcies) and want to optimize the tax position, the Discovery call is the right next step. We’ve handled FTX-loss positioning for multiple clients and quote engagement based on complexity.