Guides › 1099-DA vs Form 8949: How They Fit Together
1099-DA vs Form 8949: How They Fit Together
This site provides general information, not tax, legal or financial advice. Consult a qualified tax professional. Last verified against IRS pages: October 17, 2026. Examples use made-up numbers for illustration only.
Short answer: Form 1099-DA is what a broker sends you and the IRS. Form 8949 is where you list your digital asset sales and reconcile them with what was reported. The totals then flow to Schedule D and Form 1040.
What each form is
- Form 1099-DA (broker → you and the IRS): reports gross proceeds and, for covered assets, basis. Whether or not you receive one, you must report all income, gains and losses from digital asset transactions.
- Form 8949 (you → IRS): "allows you and the IRS to reconcile amounts that were reported to you and the IRS on Form 1099-B, Form 1099-DA, or Form 1099-S ... with the amounts you report on your return."
- Schedule D: totals the Form 8949 results (and certain transactions that can be summarized directly).
Which Form 8949 box to check
The 1099-DA has an "Applicable checkbox on Form 8949" code to help you.
| 1099-DA code | Meaning | Form 8949 box |
|---|---|---|
| G | Short term, basis reported to the IRS | Part I, box G |
| H | Short term, basis not reported to the IRS | Part I, box H |
| J | Long term, basis reported to the IRS | Part II, box J |
| K | Long term, basis not reported to the IRS | Part II, box K |
| Y | Holding period unknown to the broker | Use your own records to decide between H and K |
| (no 1099-DA received) | Short term / long term | Box I (short term) or L (long term) |
Digital asset transactions should not be reported in boxes C or F; the instructions say to use G/H/I (short term) and J/K/L (long term). Use a separate Part I or Part II for each box. Short term means one year or less; long term means more than one year.
The Form 8949 instructions we read are the 2025 revision; they describe boxes G–L. Re-check the current form and instructions when you file.
What to copy from the 1099-DA
| Form 8949 column | 1099-DA source |
|---|---|
| (a) Description | Box 1b (name) and 1c (units) |
| (b) Date acquired | Box 1d (may be blank or "VARIOUS") |
| (c) Date sold | Box 1e |
| (d) Proceeds | Box 1f (already reduced by transaction costs) |
| (e) Cost or other basis | Box 1g if basis was reported to the IRS; otherwise your own correct basis |
| (f), (g) Code and adjustment | Only if something must be corrected (see wrong cost basis) |
| (h) Gain or loss | (d) − (e) ± (g) |
When you may not need Form 8949 ("Exception 1")
Per the Form 8949 instructions, you may report summary totals directly on Schedule D (line 1a short term / line 8a long term) if, for those transactions: the 1099-DA shows basis was reported to the IRS and shows no adjustments in box 1h or 1i; the "Ordinary" box in box 6 is not checked; you need no adjustments to basis or type of gain; and you are not making QOF deferral elections. If any of that does not apply, use Form 8949.
Where gain or loss goes
Form 8949 → Schedule D → Form 1040. The Form 1040 also asks a digital asset question; answer it based on your own activity, not on whether you received a form.
Example 1: basis reported (made-up numbers)
1099-DA: asset "ABC", acquired 03/10/2026, sold 11/20/2026, box 1f $1,400, box 1g $1,000, box 2 checked, code G.
- Short-term (held one year or less), box G. Gain = $1,400 − $1,000 = $400.
- If you have no adjustments, Exception 1 may let you report it directly on Schedule D, line 1a.
Example 2: basis not reported (made-up numbers)
1099-DA: asset "XYZ", acquired 2024, sold 2026, box 1f $5,000, box 1g blank, box 9 checked, code K.
- Long-term, box K. You enter your own basis in column (e). If your records show $2,000, gain = $3,000.
Common mismatches
- Proceeds differ from your exchange export: box 1f is net of transaction costs; check how your export treats fees.
- Acquisition date blank: brokers may leave box 1d blank for assets acquired on various dates or noncovered assets.
- Short/long term disagrees with your records: if the type of gain is wrong, the instructions say to report it in the correct part (code T in column (f)).
- Two forms for one trade: a broker may issue separate 1099-DAs for covered and noncovered units sold together.
FAQ
Do I attach my 1099-DA to my return? Not described on the pages we read; follow the Form 1040 and Form 8949 instructions for your filing method.
What if my 1099-DA shows wrong basis? See 1099-DA wrong cost basis.
Does a missing 1099-DA mean I don't report? No. See the first section.
Staking rewards? The instructions say rewards and staking payments are not reported on Form 1099-DA; income from them is still yours to report separately.
What we could not verify
- The final 2026 Form 8949 layout (we read the 2025-revision instructions).
- How a specific e-file product places these entries.
Sources
- IRS, Understanding your Form 1099-DA — https://www.irs.gov/businesses/understanding-your-form-1099-da (page updated June 28, 2026; read October 17, 2026)
- IRS, Instructions for Form 1099-DA (2026) — https://www.irs.gov/instructions/i1099da (read October 17, 2026)
- IRS, Instructions for Form 8949 (2025 revision) — https://www.irs.gov/instructions/i8949 (read October 17, 2026)
Not tax advice. Examples use made-up figures. Nothing here has been reviewed by a tax professional. We may earn commissions from affiliate links where marked; see the disclosure.