River's support page, retrieved September 29, 2026, lists Form 1099-DA for taxable bitcoin disposals through a broker and says River sends a copy to the IRS.

Its 2025 references concern optional cost basis and a December account statement, rather than a dated 1099-DA issuance promise.

Its learn guide, retrieved the same day, says exchanges will send Form 1099-B for 2025, then identifies River's 2025 transactions under Form 1099-DA elsewhere.

Does River issue a 1099-DA?

River's support page says a taxable disposal of bitcoin through a broker can produce Form 1099-DA. Its examples are selling, trading, or spending bitcoin during the tax year.

It also lists Form 1099-MISC, Form 1099-INT, and Form 1099-NEC for other activities. These are separate documents, with conditions explained below.

The support page does not expressly date its issuance promise to 2025. The learn guide's later passage says River may report basis for lots acquired through River using Form 1099-DA for 2025 transactions, alongside its earlier 1099-B sentence.

Separately, IRS Publication 544 (2025) requires brokers to use Form 1099-DA for 2025 digital-asset sales. That IRS obligation does not establish which document River issued for your account.

Where and when to find the form

The two River pages do not give an exact account menu path or a River-specific delivery date. Use your signed-in account or ask River support where your tax documents are available; preserve any download or message with the transaction records.

The learn guide's general late-January or early-February timing describes 1099 forms generally. It supplies no promised River delivery date for your account.

Who is named on River's form?

Neither River page identifies the payer name printed on the return. Open the actual form and inspect the payer line before entering anything from memory. Do not infer a partner, custodian, or legal entity from the River app name.

What the form reports, and what it leaves out

River's support page says basis and gain or loss can be visible on your Form 1099-DA, although River was not required to report those amounts to the IRS for tax year 2025. One disposal may show both short-term and long-term amounts when it includes bitcoin acquired at different times.

The form's contents still need to be compared with the sales record, especially when one bitcoin lot came from outside River. (River Support.)

For bitcoin deposited from another exchange or wallet, River says it may not know the original basis. The customer must calculate and report it. River's learn guide says customers can enter basis for transferred bitcoin; that feature does not establish what was reported to the IRS.

For example, a sale export from the receiving account may lack the original purchase record. Keep that purchase record beside the transfer evidence (the sale screen alone is a poor starting point).

For the tax-year phase-in, the IRS materials distinguish 2025 gross-proceeds reporting from voluntary basis reporting, while 2026 requires basis for covered assets and leaves basis optional for noncovered assets under the applicable instructions. (IRS Publication 544; Instructions for Form 1099-DA.) River's learn guide says its 2026 Form 1099-DA reporting will include both cost basis and gross proceeds, using FIFO unless another method is selected.

That is River's educational statement about future reporting, not proof of what an already-issued form contains.

The IRS instructions describe digital-asset cost basis as acquisition cost, including transaction fees, commissions, transfer taxes, and other acquisition costs. (Instructions for Form 8949.)

Form-versus-record checklist

  • Choose the tax year shown on the document.
  • Record the payer name and document type exactly as printed.
  • Compare sale dates and proceeds with the River transaction export.
  • Mark transfers into River and locate the original source basis.
  • Note what the issued form actually shows, including any short-term or long-term amounts.
  • Retain purchase records, transfer evidence, exports, and the form together.

This is a private reconciliation checklist, not a verdict that a River form is wrong. You can also check the broker form against your records.

Other River forms and account types

River separates disposals from several income activities. The dollar amounts below are River's stated thresholds for the previous calendar year, not general IRS limits.

Activity River-listed document River-stated condition What to compare
Taxable bitcoin disposal Form 1099-DA Selling, trading, or spending bitcoin through River during the tax year Disposal date, proceeds, basis shown, and River export
Referral rewards or Bitcoin Interest on Cash Form 1099-MISC At least $600 in bitcoin from these activities Reward or interest records and the calendar year
Cash interest Form 1099-INT At least $10 of cash interest Cash-interest statements and the calendar year
Mining income Form 1099-NEC At least $600 of mining income Mining records and the calendar year

River's support page names rewards and Bitcoin Interest on Cash separately from cash interest, so those activities do not belong on the same River-listed form.

It also lists mining on Form 1099-NEC. (River Support.) For the mining row, see the guide to report mining income.

Corrections and support

The River pages cited here publish no correction route. If a field differs from your records, save the original file, record the difference, and ask River support how to request a correction.

Keep the response with your form and export. A correction process documented by another exchange does not establish River's process.

What this means for your filing

Classify the activity, identify the document and year, and compare sale dates and proceeds. For deposited bitcoin, trace missing basis to the original purchase records.

Use the tool to check the broker form against your records. For a sale that needs follow-up, read why the basis field is blank and reconcile missing cost basis. Then report reconciled sales on Form 8949.

Which River document am I looking for?

  • Disposal: You sold, traded, or spent bitcoin through River. Look for Form 1099-DA.
  • Referral or Bitcoin Interest on Cash: Compare the activity with River's $600 statement and look for Form 1099-MISC.
  • Cash interest: Compare the activity with River's $10 statement and look for Form 1099-INT.
  • Mining: Compare the activity with River's $600 statement and look for Form 1099-NEC.
  • Another activity: River has not documented this case in the pages used here. Keep the activity record and ask River which document applies.

Use a separate branch for each activity (one account can have several forms).

Start with which exchanges issue Form 1099-DA.

For nearby comparisons, read Cash App's 1099-DA or 1099-B conflict, Strike's form layout, and Swan's covered and uncovered bitcoin.

Keep each company's documented process separate from River's.

The 2026 IRS Instructions for Form 1099-DA define a broker as a person who, in the ordinary course of a trade or business, stands ready to effect digital-asset sales for others.

Questions about River's form

Is my River form a 1099-B or a 1099-DA?

River's support page lists 1099-DA without expressly dating issuance to 2025. The learn guide names both forms for 2025 in separate passages; inspect your issued document.

Why is the basis blank after I deposited bitcoin into River?

River may lack the original basis of externally deposited bitcoin. Its learn guide describes a basis-entry feature; use the original acquisition records.

Does River put bitcoin interest and cash interest on the same form?

No. River lists Bitcoin Interest on Cash on 1099-MISC at $600, and cash interest on 1099-INT at $10, under its stated conditions.

What has River said about basis on a 2026 1099-DA?

River's learn guide says 2026 reporting will include basis and gross proceeds on 1099-DA. Its FIFO default applies unless another method is selected.

Save your River forms and export, then check the broker form against your records, matching each activity to its document.

Sources