MetaMask Portfolio & Swaps Tax Guide (2026): IRS Form 1099-DA, Cost Basis & Form 8949
Leading EVM self-custody wallet headquartered in Fort Worth, TX; in Feb 2025 the SEC dismissed its enforcement case against MetaMask Swaps and Staking in full. Below is the statutory breakdown of MetaMask Portfolio & Swaps tax reporting for the 2025/2026 tax years, including Public Wallet Address Sync (EVM CSV/API) issuance, default cost-basis tracking (Per-wallet cost-basis tracking under Rev. Proc. 2024-28 (no 1099-DA issued by non-custodial software after the 2025 CRA repeal of the IRS DeFi broker rule, but all swaps remain taxable on Form 8949)), and transferred-in lot reconciliation under Rev. Proc. 2024-28.
- IRC Section
- 26 U.S.C. §§ 6045, 1012 · Treas. Reg. § 1.1012-1(j) · Rev. Proc. 2024-28
- IRS Form & Line
- Public Wallet Address Sync (EVM CSV/API) → IRS Form 8949 & Schedule D (Form 1040)
- 2026 Federal Rate
- 0% / 15% / 20% LTCG (>365d) · 10%–37% STCG (Rev. Proc. 2025-32)
- 3.8% NIIT Applicability
- 3.8% Form 8960 Surtax > $200k Single / $250k MFJ (IRC § 1411)
- 1099-DA Box Mapping
- Default Basis: Per-wallet cost-basis tracking under Rev. Proc. 2024-28
- Statute of Limitations / Rev. Proc.
- 3 Yrs Standard (IRC § 6501(a)) · 6 Yrs >25% Omission · Rev. Proc. 2024-28
▸ Inspect 1200×675 CPA Statutory Workpaper Summary Card (MetaMask Portfolio & Swaps Tax Guide 2026:) WebP 1200×675
1. Which IRS Tax Forms Does MetaMask Portfolio & Swaps Issue?
IRS Statutory Rule: MetaMask Portfolio & Swaps Tax Guide (2026) establishes the following verified 2026 benchmark values under “1. Which IRS Tax Forms Does MetaMask Portfolio & Swaps ”: IRS Information Returns Issued (Public Wallet Address Sync (EVM CSV/API)), Default Cost-Basis Method (Rev. Proc. 2024-28) (Per-wallet cost-basis tracking under Rev. Proc. 2024-28 (no 1099-DA issued by non-custodial software after the 2025 CRA repeal of the IRS DeFi broker rule, but all swaps remain taxable on Form 8949)), Self-Custody Deposits & Withdrawals (Supported — External deposits are treated as Noncovered (Box 3b / Box 9) on Form 1099-DA).
| US Operating Legal Entity | Consensys Software Inc. (Fort Worth, TX) |
|---|---|
| IRS Information Returns Issued | Public Wallet Address Sync (EVM CSV/API) |
| Default Cost-Basis Method (Rev. Proc. 2024-28) | Per-wallet cost-basis tracking under Rev. Proc. 2024-28 (no 1099-DA issued by non-custodial software after the 2025 CRA repeal of the IRS DeFi broker rule, but all swaps remain taxable on Form 8949) |
| Self-Custody Deposits & Withdrawals | Supported — External deposits are treated as Noncovered (Box 3b / Box 9) on Form 1099-DA |
| Staking & Yield Tax Reporting (1099-MISC) | Staking Supported: Yes (Pooled & validator ETH staking via MetaMask Portfolio (~3.2% APY)) · USDC/Cash Rewards: |
| CFTC Regulated Futures (IRC § 1256) | Not Offered — |
| US State Availability | 51 / 51 Jurisdictions (Available in all 50 US states + DC; following the Feb 2025 SEC dismissal and April 2025 Congressional Review Act repeal of the IRS DeFi broker rule, non-custodial wallets do not issue 1099-DA forms.) |
2. Default Cost-Basis Method & How to Change It Before Trading
Under IRS Rev. Proc. 2024-28 and Treas. Reg. § 1.1012-1(j), cost basis must be tracked on a strict account-by-account / wallet-by-wallet basis starting January 1, 2025. For MetaMask Portfolio & Swaps:
- Default Broker Accounting Setting:
Per-wallet cost-basis tracking under Rev. Proc. 2024-28 (no 1099-DA issued by non-custodial software after the 2025 CRA repeal of the IRS DeFi broker rule, but all swaps remain taxable on Form 8949) - Standing Instruction Deadline: To use HIFO or Specific Identification instead of FIFO on MetaMask Portfolio & Swaps, you must either select your tax lot preference inside MetaMask Portfolio & Swaps's tax settings before executing the sale (once broker lot-selection is enabled) or maintain contemporaneous Treas. Reg. § 1.1012-1(j) standing instructions in your connected tax software ledger.
3. Reconciling Transferred-In Self-Custody Lots (Fixing Blank Box 1g)
Because MetaMask Portfolio & Swaps supports external blockchain deposits and withdrawals, any crypto you transfer into MetaMask Portfolio & Swaps from a hardware wallet (Ledger, Trezor) or external exchange is classified as a noncovered security under TD 10000. When you sell that deposited crypto on MetaMask Portfolio & Swaps, your Form 1099-DA will report Gross Proceeds in Box 1f, check Box 9 (Transferred In) and Box 3b (Noncovered), and leave Box 1g (Cost Basis) blank. Follow our Blank Box 1g Missing Cost Basis Fix Guide to report your true acquisition cost in Column (e) of Form 8949 under Box B/E (or H/K).
4. Adding MetaMask Portfolio & Swaps Trading Fees to Your Cost Basis (IRC § 1012)
IRS Statutory Rule: MetaMask Portfolio & Swaps Tax Guide (2026) establishes the following verified 2026 benchmark values under “4. Adding MetaMask Portfolio & Swaps Trading Fees to Yo”: Instant Buy / Retail Fee: 0.875% (Typical Spread: 25 bps ), $1,000 Round-Trip Fee Impact on Basis: $22.50 (Standard) vs $17.50 (Pro Tier).
Under IRC § 1012, commissions and exchange fees paid to acquire digital assets increase your cost basis, while fees paid on sale reduce your gross proceeds:
- Instant Buy / Retail Fee:
0.875%(Typical Spread:25 bps) - Pro Orderbook Tier (0.875% MetaMask Swaps aggregator service fee (routes across Uniswap, 1inch, ParaSwap, AirSwap, Curve)): Single Retail Fee Schedule
- $1,000 Round-Trip Fee Impact on Basis:
$22.50(Standard) vs$17.50(Pro Tier)
5. Supported US Crypto Tax Software API Integrations
IRS Statutory Rule: MetaMask Portfolio & Swaps Tax Guide (2026) establishes the following verified 2026 benchmark values under “5. Supported US Crypto Tax Software API Integrations”: 2026 Federal Ordinary / Short-Term Rate (<= 365 Days) (22.00% Federal (22.00% Combined)), 2026 Federal Long-Term Capital Gains Rate (> 365 Days) (15.00% Federal (15.00% Combined)), Estimated Tax on Short-Term vs Long-Term Disposition ($3,300 (ST) vs $2,250 (LT) · $13,900 (ST) vs $9,400 (LT)).
MetaMask Portfolio & Swaps supports automated read-only API or CSV tax lot synchronization with: Koinly, CoinTracker, CoinLedger, TokenTax. Compare full pricing and Form 8949 features in our US Crypto Tax Software Directory.
2026 Taxpayer Scenario Comparison Matrix (Single $75k vs Married $250k vs High-Earner $600k+)
The statutory matrix below compares 2026 combined Federal, 3.8% Net Investment Income Tax (IRC § 1411 Form 8960), and Federal Baseline (0% State Tax) tax liabilities across three representative US taxpayer profiles:
| Statutory Dimension / Tax Metric | Profile A: Single Filer ($75,000 Base AGI + $15,000 Crypto Gain) | Profile B: Married Joint ($250,000 Base AGI + $50,000 Crypto Gain) | Profile C: High-Earner ($600,000+ Base AGI + $250,000 Crypto Gain) |
|---|---|---|---|
| 2026 Federal Ordinary / Short-Term Rate (<= 365 Days) | 22.00% Federal (22.00% Combined) | 24.00% + 3.80% NIIT (27.80% Combined) | 37.00% + 3.80% NIIT (40.80% Combined) |
| 2026 Federal Long-Term Capital Gains Rate (> 365 Days) | 15.00% Federal (15.00% Combined) | 15.00% + 3.80% NIIT (18.80% Combined) | 20.00% + 3.80% NIIT (23.80% Combined) |
| Estimated Tax on Short-Term vs Long-Term Disposition | $3,300 (ST) vs $2,250 (LT) | $13,900 (ST) vs $9,400 (LT) | $102,000 (ST) vs $59,500 (LT) |
| Long-Term Holding Period Tax Savings (> 1 Year) | $1,050 Saved (7.00% Spread) | $4,500 Saved (9.00% Spread) | $42,500 Saved (17.00% Spread) |
| Form 1099-DA & Form 8949 Reporting Requirement | Form 8949 Box A/D (Covered) or Box B/E (Noncovered) -> Schedule D | Form 8949 + Schedule D + Form 8960 (3.8% NIIT on $50k over $250k MFJ) | Form 8949 + Schedule D + Form 8960 + Rev. Proc. 2024-28 Specific ID Ledger |
Federal + State Stacking
1099-DA State Reporting
Wallet-by-Wallet Accounting
2026 IRS Compliance Chain, Form 1099-DA Workflow & Disallowance Rules: MetaMask Portfolio & Swaps Tax Guide (2026)
IRS Statutory Rule: MetaMask Portfolio & Swaps Tax Guide (2026) is governed in the 2026 tax year by IRC §§ 1001, 1221, and 1222, IRS Notice 2014-21, Rev. Proc. 2024-28, and Rev. Proc. 2025-32, taxing short-term dispositions (≤ 365 days) at ordinary rates up to 37% and long-term gains (> 365 days) at 0%, 15%, or 20% plus the 3.8% Net Investment Income Tax (NIIT).
- Segregate Per-Wallet Cost Basis Pools (Rev. Proc. 2024-28): The taxpayer maintains separate FIFO or Specific-ID cost basis ledgers for each custodial broker and each self-custodied wallet address.
- Ingest Broker Form 1099-DA Statements: By February 15, custodial exchanges issue Form 1099-DA reporting gross proceeds (Box 1f) and covered cost basis for each digital asset sale or swap.
- Classify Ordinary Income vs. Capital Gains: Staking rewards, mining payouts, and airdrops are recorded on Schedule 1 / Schedule C at fair market value in USD at the exact timestamp of dominion and control.
- Populate IRS Form 8949 (Parts I & II): Dispositions are separated into Part I (Short-Term ≤ 365 days) and Part II (Long-Term > 365 days) using Checkboxes G, H, I (short-term) or J, K, L (long-term).
- Apply State Income Tax Conformity: Net capital gains flow from federal Schedule D to the taxpayer's state return (0% in AK, FL, NV, NH, SD, TN, TX, WA, WY vs. up to 13.3% in California).
- Answer the Form 1040 Digital Asset Question: The filer checks “Yes” or “No” on page 1 of Form 1040 and retains cryptographic transaction logs for the 3-to-6-year IRS statute of limitations (IRC § 6501).
Statutory Myth Debunked (Restriction): A tax-free crypto-to-crypto or BTC-to-USDT stablecoin swap under IRC § 1031 like-kind exchange rules does not exist: Congress restricted IRC § 1031 exclusively to real property under the Tax Cuts and Jobs Act, making every coin-to-coin trade, DeFi liquidity swap, and stablecoin conversion an immediately taxable disposition under IRC § 1001.
To model exact liabilities for MetaMask Portfolio & Swaps Tax Guide (2026), run the 2026 federal and 50-state crypto capital gains tax calculator incorporating IRS Rev. Proc. 2025-32 brackets (0%, 15%, 20%) plus 3.8% NIIT (short-term vs long-term 365-day holding threshold), verify reporting codes in our interactive IRS Form 1099-DA box-by-box reconciliation guide under Treasury Decision 10000 (89 FR 56480) gross proceeds reporting (Form 8949 Part I and Part II adjustment codes), and review wallet-by-wallet cost basis allocation under Rev. Proc. 2024-28 (mandatory per-account FIFO/Specific ID tracking from January 1, 2026).
2026 IRS Form 1099-DA & 8949 Filing Readiness Tracker
0 / 4 Complete2026 IRS Rev. Proc. & State Tax Rate Dispatch
Title 26 AlertsReceive instant CPA alerts when the IRS issues new Form 1099-DA guidance, Internal Revenue Bulletins, or 50-state capital gains rate amendments—or download this page's statutory workpaper `.txt` file.
Statutory Frequently Asked Questions & IRS Citations
IRS Statutory Rule: MetaMask Portfolio & Swaps Tax Guide (2026) is governed in 2026 by IRS Rev. Proc. 2025-32 (0%/15%/20% long-term brackets plus 3.8% NIIT) and mandatory Form 1099-DA gross proceeds reporting.
Does MetaMask Portfolio & Swaps report my crypto trades to the IRS in 2026?
MetaMask Portfolio & Swaps (Consensys Software Inc.) issues Public Wallet Address Sync (EVM CSV/API) for qualifying US customer activity. Users must export their transaction history and self-report dispositions on IRS Form 8949 and Schedule D.
What is MetaMask Portfolio & Swaps's default cost basis method for Form 1099-DA?
MetaMask Portfolio & Swaps's default cost basis accounting configuration is: Per-wallet cost-basis tracking under Rev. Proc. 2024-28 (no 1099-DA issued by non-custodial software after the 2025 CRA repeal of the IRS DeFi broker rule, but all swaps remain taxable on Form 8949).
Why is Box 1g (Cost Basis) blank on my 2026 IRS Form 1099-DA?
Under Treasury Decision 10000 (Treas. Reg. § 1.6045-1) and IRS Notice 2024-56, digital assetlots acquired prior to January 1, 2026, or transferred in from an external self-custody wallet or another exchange, are classified as noncovered securities (Box 5 checked). Custodial brokers report gross proceeds in Box 1f to the IRS, leaving Box 1g blank so you can enter your verified historical cost basis in Form 8949 Column (e) under Box B or Box E.
How do I prevent an IRS CP2000 Automated Underreporter notice when Form 1099-DA omits my cost basis?
Ensure that the sum of gross proceeds reported in Column (d) across all Form 8949 sheets equals or exceeds the aggregate Box 1f proceeds reported on all Forms 1099-DA filed under your SSN/TIN. Place noncovered lots on Form 8949 Part I Box B (short-term) or Part II Box E (long-term) and enter your Rev. Proc. 2024-28 wallet-specific cost basis in Column (e).
Does transferring Bitcoin or Ethereum between my own wallets trigger Form 1099-DA Box 1f proceeds?
No. A non-taxable wallet-to-wallet transfer of identical digital assets owned by the same taxpayer does not trigger a sale or disposition under IRC § 1001. However, the receiving custodial broker records the inbound transfer in Form 1099-DA Box 12 (Units Transferred In), and when those units are later sold, they are reported as noncovered lots requiring external basis documentation.
How does the $10,000 Qualified Stablecoin de minimis threshold (Box 11a) work on Form 1099-DA?
Under Treas. Reg. § 1.6045-1(d)(10), custodial brokers may report designated qualified stablecoin dispositions (such as USDC or PYUSD) on an aggregate basis in Box 11a/11b—and are exempt from reporting if your aggregate qualified stablecoin sales at that broker do not exceed $10,000 for the calendar year.