MEXC Tax Guide 2026: CARF, TIN & Crypto Tax Reporting

The Crypto Asset Reporting Framework (CARF) is an international standard developed by the OECD to bring automatic exchange of tax information to the cryptocurrency industry. Modeled after the Common Reporting Standard (CRS) used by banks since 2017, CARF requires crypto exchanges and service providers to collect user identity data — including Tax Identification Numbers (TINs) — and report transaction details to local tax authorities, who then share this data with other participating jurisdictions.

As of January 1, 2026, 48 countries have committed to implementing CARF, including all EU member states, the United Kingdom, Canada, Australia, South Korea, Singapore, Japan, and Brazil. The United States is not a CARF signatory but enforces its own reporting via IRS Form 1099-DA starting in 2026. For MEXC users, this means the exchange is now legally obligated to collect your TIN and report your trading activity to relevant tax authorities.

The practical impact is significant: tax authorities will know your total deposits, withdrawals, and trading volumes on MEXC. The era of under-reporting crypto gains is effectively over in CARF-participating countries. Proactively organizing your tax records and using dedicated crypto tax software is no longer optional — it is essential.

MEXC has introduced a dedicated TIN submission flow as part of its CARF compliance. To add your Tax Identification Number, navigate to your Profile settings, then select "Tax Information" or "CARF Compliance" (the exact label may vary by region). You will be prompted to select your country of tax residency and enter your TIN — this is your Social Security Number (SSN) in the US, National Insurance Number in the UK, Steuernummer in Germany, or equivalent in your jurisdiction.

If you have tax residency in multiple countries, MEXC allows you to add TINs for each jurisdiction. The platform validates the format of your TIN against known patterns for your selected country but does not verify the number with tax authorities directly. Submitting an incorrect TIN may trigger compliance flags on your account later when authorities cross-reference reported data.

Users who fail to provide a TIN by the deadline set for their jurisdiction may face account restrictions, including withdrawal limits or trading suspensions. MEXC sends email notifications about TIN submission deadlines, so check your inbox regularly. If you are unsure about your TIN, consult your local tax authority website or a qualified tax advisor before submitting.

Under CARF, MEXC is required to report comprehensive transaction data for each user to the tax authority in the user's country of tax residency. The reported data includes: your full name, date of birth, address, and TIN; the total gross proceeds from sales and exchanges of crypto assets during the calendar year; the total value of crypto-to-crypto exchanges; retail payment transactions (crypto used to pay for goods/services); and transfers of crypto assets to wallets outside the exchange, including the receiving wallet address.

Notably, CARF reporting covers not just fiat off-ramps but also crypto-to-crypto trades and outbound transfers. This is more comprehensive than previous reporting frameworks. If you swap BTC for ETH on MEXC, that trade is reportable. If you withdraw crypto to a hardware wallet, the transfer amount and destination address are reportable. MEXC aggregates this data annually and transmits it to the relevant tax authority by the September 30 deadline following each calendar year.

The data is then shared between tax authorities through bilateral exchange agreements. For example, if you are a German tax resident trading on MEXC (registered in Seychelles), MEXC reports your data to the Seychelles Financial Intelligence Unit, which forwards it to Germany's Federal Central Tax Office (BZSt). This cross-border information sharing means that geographic distance from the exchange provides no protection from tax reporting.

MEXC provides several ways to export your trading history for tax reporting purposes. The simplest method is through the web interface: go to Orders > Spot Order History (or Futures Order History), set the date range to the full tax year, and click "Export". MEXC generates CSV files that include trade date, pair, side (buy/sell), price, quantity, fee, and total. You can also export deposit and withdrawal history separately from the Assets section.

For API-savvy users, the REST API endpoints GET /api/v3/myTrades and GET /api/v3/allOrders allow programmatic retrieval of complete trade history. This is useful if you need data going back more than 6 months, as the web export interface sometimes limits the lookback period. The ccxt library's fetch_my_trades() method provides a convenient wrapper for this.

A critical detail: MEXC export files use UTC timestamps. When reconciling with your local tax year (which follows your local timezone), you may need to adjust trades that fall near midnight on December 31 / January 1. Keep all original CSV exports as backup documentation — tax authorities may request source records during an audit. If you traded futures, remember that realized PnL from closing positions is the taxable event, not the opening of the position.

Three crypto tax platforms stand out for MEXC users in 2026. Blockpit, an Austrian company, offers the deepest MEXC integration with automatic API sync that pulls spot trades, futures PnL, earn rewards, and airdrops. It supports tax reports for 50+ countries and handles CARF-specific reporting requirements. Pricing starts at EUR 49/year for up to 1,000 transactions. Koinly is the most popular choice globally, supporting MEXC via both API connection and CSV import. It excels at handling complex scenarios like DeFi transactions mixed with CEX trading, and generates tax-ready reports for 30+ countries. The free tier supports up to 10,000 transactions with limited report features; paid plans start at $49/year.

CoinTracker rounds out the top three, particularly strong for US users due to its direct TurboTax and H&R Block integrations. It supports MEXC CSV imports and provides portfolio tracking alongside tax reporting. The free tier covers up to 25 transactions; paid plans start at $59/year. All three tools now support CARF-aligned reporting formats that match the data your tax authority will receive from MEXC.

When choosing a tax tool, consider: (1) Does it support your country's specific tax rules (FIFO, LIFO, ACB, etc.)? (2) Can it handle all your MEXC transaction types (spot, futures, earn, launchpad)? (3) Does it integrate with your other exchanges and wallets? Import your data early in the tax year rather than scrambling at the deadline — discrepancies are much easier to resolve when the trades are fresh in your memory.