Independent research on IRS digital asset rules, 1099-DA reporting, and cross-border crypto tax compliance.
THE QUIET RULE
The IRS extended specific ID relief through December 2026 — and most crypto holders never heard about it.
Notice 2026-20, issued in March, gives taxpayers seven more months to identify specific units sold using their own records — overriding the per-wallet FIFO default that was supposed to lock in on January 1, 2026. The relief is real, but the documentation requirement is stricter than most filers realize.
TL;DR
- IRS Notice 2026-20 extends specific identification relief through December 31, 2026.
- You can still pick which lot to sell at trade time using your own records — not just FIFO.
- The relief does not remove per-wallet tracking; it only relaxes how you identify the lot sold.
- 61% of crypto investors are unaware of 1099-DA rules (Forbes, April 2026) — the gap is widening, not closing.
- After January 1, 2027, broker-default FIFO becomes mandatory unless specific ID is documented at trade time.
The 61% who never got the memo
In April 2026, Forbes published a survey of 3,000 US crypto investors. Sixty-one percent did not know that brokers were now reporting their crypto sales to the IRS on Form 1099-DA. Among those aware, fewer than half understood that the broker's basis number would be reconciled automatically against their tax return.
This matters because the rules are not standing still. The IRS issued Notice 2026-20 in March, extending one of the most important taxpayer-friendly provisions of the entire 1099-DA framework — and almost no major crypto outlet covered it in plain language. The result is a compliance gap that compounds: investors who do not know about 1099-DA also do not know about the relief that protects them from its harshest defaults. They will file using whatever method TurboTax or their broker presents, and discover the consequence only when the IRS sends a CP2000 notice in 2027.
This article is the plain-language version of Notice 2026-20: what it changed, what it did not change, and what to do with the seven months remaining.
What Notice 2026-20 actually says
The original relief came in Notice 2025-7, which let taxpayers identify specific units of crypto sold during 2025 using their own books and records — not the broker's default FIFO assumption. Notice 2026-20, issued March 2026, extends that relief period through December 31, 2026.
The mechanics: under the proposed regulations from 2023, brokers would have been required to apply FIFO at the wallet level and report it on 1099-DA, with no easy way for taxpayers to override the broker's chosen lot. The relief notices say the opposite — for the entire 2025 and 2026 tax years, taxpayers may treat any disposition as a sale of the specific units they choose, as long as they document the choice in their own records contemporaneously with the trade.
Three things to understand precisely:
First, the relief is taxpayer-side, not broker-side. Brokers will still issue 1099-DA forms using their own default method (usually FIFO). The relief lets you report a different basis on your tax return, with the difference reconciled via Form 8949 adjustment codes. Your records become the controlling document if you have them.
Second, the relief requires contemporaneous documentation. "Contemporaneous" is the key word. The IRS does not accept a spreadsheet you build in March 2027 explaining what you "would have" identified. The lot must be identified at or before the time of the trade, in records you can produce on audit. CoinTracker, Koinly, CoinLedger, and similar tools that let you tag lots before disposition satisfy this requirement. A retroactive accountant reconstruction does not.
Third, the relief expires December 31, 2026. Starting January 1, 2027, the broker's reported method becomes the binding default unless you have specifically identified the lot at the trade time using a recognized method. Per-wallet FIFO becomes the practical reality for anyone without a real-time tracking system.
Specific ID vs. FIFO default: what the difference looks like
The dollar difference between specific identification and FIFO is rarely small. Consider a holder who bought BTC in three lots: 1 BTC at $20,000 in 2021, 1 BTC at $45,000 in 2023, and 1 BTC at $90,000 in 2025. In June 2026, they sell 1 BTC at $80,000.
Under FIFO (the broker default): The broker reports the 2021 lot as sold. Cost basis $20,000, proceeds $80,000, taxable gain $60,000 — long-term capital gain at up to 20% federal rate.
Under specific identification (Notice 2026-20 relief): The taxpayer identifies the 2025 lot as sold. Cost basis $90,000, proceeds $80,000, taxable loss $10,000 — short-term capital loss usable against other gains.
The same trade. A $70,000 swing in tax outcome. Specific ID flips a $12,000 tax bill into a $10,000 deductible loss. This is why Notice 2026-20 matters even when the rule sounds technical: it preserves the optimization that disappears the moment broker FIFO becomes binding.
The catch is that specific identification only works if the lot is documented at trade time. If the holder sells in June 2026 without tagging which lot, then tries to reconstruct it in April 2027, the IRS position is that no specific identification was made — and the broker's FIFO number controls.
What this changes — and what it does not
What the relief does not change: Per-wallet basis tracking is still mandatory. Notice 2026-20 does not let you go back to a universal pool across all wallets and exchanges. Each wallet, each exchange account, each self-custody address still maintains its own basis ledger. The relief only affects which lot within a given wallet you may identify as sold.
What the relief does change: Within each wallet, you can override the broker's default lot selection on your tax return by reporting specific identification on Form 8949 with the appropriate adjustment codes. Code B is used when basis reported on 1099-DA differs from your records. The broker number stays as filed; your number becomes the controlling figure on your return.
What expires December 31, 2026: The taxpayer-side override. Starting January 1, 2027, brokers are expected to support specific identification at trade time through their own platforms (with the holder making the lot selection in the broker's interface before submitting the order). Holders who do not use platforms supporting this feature will be locked into broker FIFO for 2027 and forward.
This is the part most coverage misses. The relief is not a permanent extension of taxpayer flexibility — it is a runway. The IRS is using 2025 and 2026 to give taxpayers and brokers time to build the systems that will be required from 2027 onward. If you are not building that system now, you will inherit the default in seven months.
Action steps for the rest of 2026
You have roughly seven months until the relief period ends. The actions that matter most depend on whether you have already sold in 2025 or 2026, are still holding, or are actively trading.
Step 1 — Document specific identification per disposition. For every sale already completed in 2025 or 2026, write down which specific lot you intended to sell and the basis attached to it. Date the document at or near the trade date. Use crypto tax software (CoinTracker, Koinly, CoinLedger) to tag lots before any future trade. The IRS accepts contemporaneous software records as documentation.
Step 2 — Reconcile against 1099-DA reports as they arrive. Brokers will issue 1099-DA forms in February 2027 for the 2026 tax year. The basis number on those forms will use broker default methods, not your specific identification. When the forms arrive, build a reconciliation worksheet showing broker-reported basis, your specifically identified basis, and the adjustment code (B) to use on Form 8949.
Step 3 — Build a per-wallet ledger before December 2026. Even with specific ID relief, per-wallet tracking is required. If you have not yet built a per-wallet basis ledger covering all your holdings, this is the single highest-leverage task before the relief period ends. The ledger needs: wallet identifier, lot acquisition date, lot quantity, lot basis, and disposition history.
Step 4 — Prepare for default FIFO post-2027. If you cannot or will not implement real-time lot tagging through your broker's platform, accept that broker FIFO will apply to your 2027 trades. In that scenario, the optimization shifts from lot selection to wallet selection — choosing which wallet to sell from based on which has the most favorable FIFO position. Plan your 2026 deposits accordingly.
BOTTOM LINE
Notice 2026-20 is a runway, not a permanent reprieve. You have until December 31, 2026 to build the documentation system that will determine your tax outcome from 2027 onward.
The 61% of investors unaware of 1099-DA will discover the rule when they receive a CP2000 notice. The smaller group that documents specific identification this year will keep the optimization. The difference between the two groups is not knowledge of crypto — it is whether they kept records the IRS accepts as contemporaneous.
FAQ
Does Notice 2026-20 apply to crypto sold in 2025 or only going forward?
It applies to both. The relief period is defined as January 1, 2025 through December 31, 2026. If you sold crypto in 2025 and identified specific lots in your own records contemporaneously, you can report those identifications on your 2025 return regardless of what the broker reported on 1099-DA.
What counts as "contemporaneous" documentation for specific identification?
The IRS has not published a precise standard, but the prevailing interpretation is: records created at or before the time of the trade, in a system that timestamps entries and cannot be retroactively altered. Crypto tax software with audit trails (CoinTracker, Koinly, CoinLedger), exchange-side lot selection features, or dated written notes attached to trade confirmations all qualify. A spreadsheet built after receiving the 1099-DA does not.
What happens if my 1099-DA basis differs from my specifically identified basis?
Report the broker basis on Form 8949 column (e), then enter your adjustment in column (g) with adjustment code B. The IRS reconciliation system flags the difference but accepts the adjustment if your documentation supports it. Keep the contemporaneous records — the IRS may request them in a CP2000 notice.
Does the relief apply to crypto held in self-custody wallets, not just exchange accounts?
Yes. Notice 2026-20 applies to all digital asset dispositions by US taxpayers, regardless of whether a 1099-DA is issued. Self-custody holdings are not reported by any broker, so the taxpayer's records are the only source of basis information. Specific identification operates the same way: tag the lot at trade time, retain documentation, report on Form 8949.
What changes on January 1, 2027?
The relief period ends. Brokers' default reporting methods become the binding figures on tax returns unless taxpayers identify specific units through broker-supported mechanisms at trade time. The taxpayer-side override via Form 8949 adjustment is expected to remain available, but the IRS has signaled that contemporaneous broker-side identification will be the primary path. Holders without real-time lot tagging through their platform will effectively be on FIFO.
Related Reading
| Per-Wallet Cost Basis | 1099-DA Mismatch Defense | Crypto Estate Planning | About Davit Cho |
Official Sources
- IRS Notice 2026-20 (full text PDF)
- Form 1099-DA — Digital Asset Broker Reporting
- Form 8949 — Sales and Other Dispositions of Capital Assets
- IRS Digital Assets Hub
Editorial perspective by Davit Cho. This article is for educational purposes only and does not constitute legal, tax, or financial advice. Crypto tax rules are jurisdiction-specific and change frequently; verify current IRS guidance and consult a CPA with digital asset experience before acting. Notice 2026-20 references current as of May 9, 2026.
