2026 → 2027 authority guide

2026 Coinbase 1099-DA Cost Basis: Covered vs. Noncovered

The new question is no longer just “where is basis?” It is “is this asset covered, and does the broker have the same lot history I do?”

Direct answer: Beginning with 2026 transactions, brokers report basis for covered digital assets. Coinbase describes covered crypto as acquired on or after January 1, 2026 and continuously held at Coinbase until sale. Transferred-in crypto can remain noncovered because Coinbase does not have the original purchase history.

Covered vs. noncovered in plain English

Record situationCoinbase status described in current guidanceWhat you still need
Bought on Coinbase on/after Jan. 1, 2026 and held there until salePotentially coveredReview the reported basis for accuracy.
Bought on Coinbase before Jan. 1, 2026NoncoveredYour own acquisition records.
Transferred in from an outside wallet/exchangeNoncoveredOriginal purchase records + transfer trail.

Why 2026 is not “broker basis means stop keeping records”

The IRS’s 2026 Form 1099-DA instructions require basis reporting for covered digital assets sold after 2025. But transferred assets and other noncovered holdings can still leave the taxpayer responsible for basis records.

The lot-identification issue most people will miss

IRS Notice 2026-20 extends temporary relief through December 31, 2026 for certain ways of making an adequate identification of digital-asset units held by a broker. The notice also says that, when its conditions are met, the units identified on a taxpayer’s books and records can control for federal income tax purposes even if the broker’s information does not match those books and records.

This is a technical tax rule. This site does not determine which identification method applies to you. If lot selection materially changes your return, take your contemporaneous records and broker documentation to a qualified professional.

Records worth keeping during 2026

Frequently asked questions

What is covered?

Coinbase describes covered assets as crypto acquired on or after January 1, 2026 and held at the same exchange until sold.

Why is transferred crypto noncovered?

Coinbase says assets transferred from another wallet or exchange are noncovered because Coinbase does not have the original purchase records.

Can broker basis differ from my records?

IRS Notice 2026-20 provides temporary relief for certain adequate-identification methods through December 31, 2026 and explains that broker-reported information may not match a taxpayer's books and records in those circumstances.

Primary sources