Coinbase USDT conversion to USDC on 30 October: what to do

On 30 October 2026 Coinbase will convert the remaining balances in USDT and thirteen other stablecoins held by retail customers in the European Economic Area (EEA) into USDC, at the market rate at that moment. Until then, the only thing you can still do with those coins at Coinbase is withdraw them to your own wallet. Coinbase is not alone: on 8 October the European markets supervisor ESMA asked the national supervisors to have all authorised crypto platforms wind down such stablecoins, no later than three months later. That works out at 8 January 2027.

USDT at Coinbase and the ESMA opinion in short

• 30 October: Coinbase makes a one-off conversion of whatever is left at that point into USDC, or into another coin or currency if USDC is not suitable.
• Fourteen coins: USDT, PAX, PYUSD, GUSD, GYEN, DAI, BUST, UST, RAI, PAXG, MUSD, USD1, USDS and TGBP.
• Already now: buying, selling and converting these coins is restricted at Coinbase. Withdrawing them is the only option if you want to keep them.
• After 30 October: anything you still send to Coinbase will not be credited. Getting it back does not always work.
• ESMA: platforms must stop all services for such stablecoins, including custody, which was still allowed in January 2025.
• USDC: on 14 October the European Banking Authority (EBA) designated USDC as the first ‘significant’ e-money token. From 12 November the EBA itself will supervise the reserves and redemption.
• Tax: whether the conversion is taxed depends on your country.

What Coinbase will do on 30 October

Coinbase serves customers in the EEA through Coinbase Luxembourg, which has been listed in ESMA’s register since 20 June 2025 with a MiCA authorisation from the Luxembourg supervisor, the CSSF.

Coinbase counts fourteen stablecoins among the coins it can no longer support under the European MiCA law. You can read what a stablecoin is in our explainer on stablecoins. According to Coinbase, this is what happens on 30 October:

• Your balance on that day is converted once, at the market rate at that moment.
• You receive USDC ‘where suitable’, otherwise another coin or currency that Coinbase supports.
• If a stablecoin later becomes MiCA-compliant, Coinbase will not reverse a conversion that has already taken place.

If you send one of these coins to Coinbase after 30 October, it will be neither credited nor converted. Coinbase can sometimes return it through a recovery process, but that is not guaranteed.

What ESMA decided on 8 October

On 8 October ESMA published an opinion addressed to the national supervisors, such as the AFM in the Netherlands and BaFin in Germany. It concerns stablecoins that do not meet the requirements of MiCA: e-money tokens, which track a single currency such as the dollar, and tokens that reference a basket of assets. ESMA does not name any coins in the opinion.

The core of it: authorised platforms should no longer provide any service at all for such tokens, from trading to custody. According to ESMA, a warning to customers is not enough, because customers cannot properly judge what protection is missing.

For existing positions, supervisors may still allow a short wind-down: selling, converting, transferring or withdrawing only. Those positions must be cleared ‘as soon as possible’, and no later than three months after the opinion was published.

The biggest difference is custody: in January 2025 ESMA still wrote that ‘mere custody and transfer’ had to remain possible. What happened in July, when MiCA’s transitional period ended, is covered in USDT is leaving European exchanges.

How other platforms wound down

How that went at Revolut is covered in Revolut drops USDT in Europe. Which platforms hold a MiCA authorisation is shown in our register of authorisations.

USDC becomes ‘significant’: what changes

On 14 October the EBA designated USDC as the first ‘significant’ token among the 45 e-money tokens notified under MiCA. In the EU, USDC is issued by Circle Internet Financial Europe. From 12 November the EBA takes over from the French supervisor, the ACPR, the supervision of own funds, reserves, liquidity and the recovery and redemption plans.

According to Circle’s European white paper, as an EEA resident you are entitled to redemption at par value at any time, provided you comply with the anti-money-laundering rules. USDC is not covered by the deposit guarantee scheme or by investor compensation, and the white paper has not been approved by any supervisor, only notified.

ESMA’s register of e-money tokens, updated on 16 October, lists 50 white papers from 25 issuers, including Circle with USDC and EURC.

What does this mean for you as a European investor?

You still hold USDT or another listed coin at Coinbase. If you do nothing, you will have USDC after 30 October. Alternatively, withdraw the coins to your own wallet before 30 October, if Coinbase supports the network. Pay attention to the network and the withdrawal fees; after that, you are responsible for access yourself.

You hold USDT on another European platform. Read the messages from your platform: according to ESMA, all authorised platforms in the EU should have finished winding down by early January. If you wait until the last moment, the platform will often convert your balance itself, at a time of its own choosing.

You hold USDT in your own wallet. The ESMA opinion is about what platforms may do, not about what you as a holder may do. It does become harder to get back into euros through a European platform. Coinbase asks you not to send these coins any more; OKX Europe currently only accepts USDT in order to convert it into USDC.

The euro-dollar rate matters. USDT and USDC both track the dollar, so their value in euros moves with the exchange rate. On 31 August 1,000 dollars was worth 862.37 euros, on 19 October 890.87 euros (ECB reference rates 1.1596 and 1.1225): 28.50 euros or 3.3% more, assuming exactly 1 dollar per coin. Where a crypto-to-crypto swap counts for tax purposes, such a difference may be taxable.

Tax by country. Coinbase itself writes that the conversion may be a taxable event in some countries.

According to tax specialists at DVD Tax Law, in Belgium gains from exchange-rate movements on USDT or USDC can also fall under the capital gains tax. You can read about the French proposal in our piece on the French stablecoin tax, and about all countries, with sources, in our overview of crypto tax in Europe.

What is not certain yet

• Which coin you receive and what it costs. Coinbase does not say for each stablecoin what it becomes if USDC is not suitable, and does not mention any fees.
• The exact end date. An ESMA opinion is not law; the national supervisors implement it. 8 January 2027 is three months after publication; platforms can stop earlier.
• The route at OKX Europe. OKX writes that the conversion is ‘currently’ available and gives no end date.
• Other platforms. Kraken, Bitpanda, Bybit and Crypto.com are in the ESMA register. We could not check their approach to remaining balances with the platforms themselves at the time of writing.
• Tax. Taxing exchange-rate gains in Belgium is the reading of tax specialists, not a position of the tax authority. The French proposal is not law yet.

This article is not investment or tax advice. Crypto, including a stablecoin, can fall sharply in value and you can lose your entire stake.

Frequently asked questions

What happens to my USDT on Coinbase?

On 30 October 2026 Coinbase makes a one-off conversion of the balance into USDC, at the market rate. If you want to keep USDT, withdraw it to your own wallet before that date. Anything you send to Coinbase after that will not be credited.

Can I still hold USDT in Europe?

The ESMA opinion is about platforms, not holders. Authorised platforms in the EU should have wound down remaining positions by around 8 January 2027 at the latest.

Is converting USDT to USDC taxed?

That depends on your country. In Belgium, Spain and Germany (within a year of purchase), a crypto-to-crypto swap counts. In the Netherlands, France, Portugal and Poland, the swap itself is not a taxable event.

What does it mean that USDC is ‘significant’?

From 12 November the EBA directly supervises the reserves and redemption. It is not a guarantee: USDC is not covered by the deposit guarantee scheme.

Sources

Read on 19 October 2026.

• ESMA: opinion ESMA75-113276571-1742, 8 October 2026, paragraphs 12, 19, 21–24 and 27.
• Coinbase: help page on the conversion.
• ESMA: statement on stablecoins and news item, 17 January 2025.
• EBA: press release on USDC, 14 October 2026.
• Circle: USDC MiCA white paper, sections I.02, I.04, I.07 and D.1.
• ESMA: interim MiCA register, CASP register (updated 19 October) and e-money token register (16 October).
• OKX: USDT One Way Convert FAQ, updated 10 September 2026.
• Bitvavo: news item on USDT, 24 January 2025.
• Cointelegraph, 4 July 2026, updated 9 July: Revolut’s message to customers.
• ECB: euro-dollar reference rates of 31 August and 19 October 2026.
• Tax: Belastingdienst, Finanzamt NRW, impots.gouv.fr, Agencia Tributaria, Autoridade Tributária, Polish Ministry of Finance, PIT-38 brochure and DVD Tax Law via Legalnews, 23 February 2026.