Is USDT halal? Stablecoins, reserves and the sarf question

USDT, the dollar stablecoin issued by Tether, is the most traded token in crypto. Many people who never think of themselves as holding it touch it every day, because so many trading pairs are priced in it. That makes the question "is USDT halal?" more practical than it first looks. The honest answer is that it raises issues that Bitcoin does not: where the reserves are invested, whether USDT should be treated as money, and what that means for every trade that uses it.

The short answer

The permissibility of USDT is contested, and the debate is less developed than for Bitcoin. Three issues sit at its centre. First, the issuer earns interest on the reserves that back the token. Second, if USDT is treated as money, exchanging it is subject to the rules of currency exchange (sarf). Third, the Darul Uloom Karachi fatwa of June 2026 named USDT explicitly when it held that crypto is not wealth. USDT is also absent from the Securities Commission Malaysia's table of Shariah-compliant digital currencies. None of this settles the matter for you; it tells you which questions to bring to your scholar.

What you actually hold

A USDT token is designed to be worth one US dollar. Tether issues and redeems tokens directly for verified customers, and holds a pool of reserve assets that is meant to cover the tokens in circulation. Most people never deal with Tether itself; they buy and sell USDT on exchanges. In substance, you hold a claim on a private issuer, backed by that issuer's reserves.

Those reserves are mostly interest-bearing. According to reporting on Tether's report for the second quarter of 2026, at 30 June 2026 it held about US$115 billion in US Treasury bills and about US$25.6 billion in reverse repurchase agreements, alongside gold, bitcoin and around US$13.5 billion in secured loans. It reported a quarterly operating profit of about US$1.5 billion, driven by Treasuries and reverse repo. Holders of USDT receive none of that income; the issuer keeps it.

The reserve interest question

Does holding USDT make you a party to riba? We are not aware of a major fatwa body that has issued a dedicated ruling on this specific point, so it helps to see the two lines of reasoning clearly, without pretending either is settled.

• The holder is not the lender. You do not lend to anyone at interest, and you receive no interest. On this reading, what the issuer does with its reserves is the issuer's affair, much as people use national currencies issued by central banks that themselves operate with interest.
• The token is built on interest. The other reading looks at substance. USDT exists as a business because reserves earn interest, part of the reserve book is lending, and holding the token supports that model. On this view, a stablecoin whose reserves sit in interest-bearing debt carries the problem with it.

A related point draws much wider agreement: earning a return by lending your USDT, whether through an exchange "earn" product or a lending protocol, is widely treated as lending at interest in a new wrapper. Our article on staking explains how to tell a fee for work from interest on a loan.

It is also worth knowing that stablecoins can be designed differently. In August 2026, the Shariyah Review Bureau in Bahrain certified the AXBHD stablecoin, a token regulated by the Central Bank of Bahrain, stating that its reserves are held in Shariah-compliant instruments. We mention it to show that reserve management is the heart of the question, not to recommend any token.

If USDT is money, sarf applies

Classical fiqh sets special rules for exchanging money. They come from the hadith narrated by Muslim from 'Ubadah ibn al-Samit: "(Exchange of) gold for gold, silver for silver, wheat for wheat, barley for barley, dates for dates, salt for salt (shall be) in equal quantities and hand to hand (spot). If they differ in type, you may trade in them as you wish provided it is hand to hand." Modern currency is treated as falling under the same rules because it functions as a measure of value.

The Shariah Advisory Council of the Securities Commission Malaysia applies this directly to crypto. Its 2020 resolution distinguishes a digital currency with no underlying asset, which it treats as goods, from one backed by gold, silver or currency, which it treats as currency. Trading the second kind "is subject to the principle of bai' al-sarf". A dollar-backed stablecoin fits that second description.

In practice, sarf asks two things of every exchange:

• Hand to hand. Both sides must be settled in the same session, with no deferral on either side. Instant matching on an exchange ledger may satisfy this through constructive possession (qabd hukmi); a peer-to-peer trade where one side pays now and the other releases later needs more care.
• Equal amounts for the same kind. Ringgit for USDT is an exchange of different currencies, so the price can be anything agreed, provided it is spot. Dollars for a dollar token is harder: if your scholar treats USDT as a dollar, the question becomes whether paying 1,001 dollars for 1,000 USDT, or the reverse, is permissible. This is exactly the kind of point to ask about rather than assume.

Trading BTC/USDT pairs

A spot trade on a BTC/USDT pair is a sale of Bitcoin priced and paid in USDT. How it is classified depends on the view of each side:

• On the SC SAC's approach, Bitcoin is goods, so a spot BTC/USDT trade is a sale of goods for a price. The sale is valid if both the goods and the price are permissible and the trade completes immediately.
• If your scholar treats Bitcoin as money too, the trade is an exchange of two currencies, and the sarf condition of immediate settlement applies to it.
• If your scholar follows the Darul Uloom Karachi view, neither side is wealth, and the trade does not work as a valid sale at all.

Two practical points follow. First, the "USDT" in a contract name does not make the contract a spot trade. Perpetual futures margined in USDT are derivatives. SeekersGuidance held in October 2025 that crypto perpetual contracts are impermissible even without interest, because the trader does not own the underlying asset, and IslamQA's 2024 answer excluded leverage and futures from its permission. Second, while your money sits in USDT between trades, the reserve question above applies to it as well. Our day trading article covers the wider issues of short-term trading.

The Darul Uloom Karachi fatwa names USDT

The fatwa from the Darul Ifta of Jamia Darul Uloom Karachi, dated 10 June 2026 and signed by six scholars including Mufti Muhammad Taqi Usmani, describes crypto as merely the recording of fictitious numbers in an account, "whether in the form of USDT or other crypto tokens", and holds that it is not maal. The cases it answered involved books and a course bought with crypto, and it held both purchases invalid. Published reports do not quote it addressing trading directly. For anyone who follows this position, USDT is not a special case to be weighed; it falls within the general ruling. The full range of positions is in our map of scholarly views.

Gold-backed tokens: what would need to be true

Some readers ask whether a token backed by gold avoids these problems. It can remove the reserve-interest issue, but it brings the strict rules on trading gold. The SC SAC treats a gold-backed digital currency as subject to sarf. AAOIFI's Shari'ah Standard No. 57 on gold, issued in November 2016, does not mention tokens, but its principles show what scholars would look for:

• Gold exchanged for currency must be settled on the spot, with no deferral on either side, and no forward or futures arrangement.
• Possession can be physical or constructive. Constructive possession relies on specified, identifiable gold, such as allocated bars with serial numbers, or a certificate for a specified bar that allows physical collection on request.
• Selling unspecified, unallocated gold without possession is a problem. A token that is only a general claim on a pool needs close scrutiny.
• Custody, audit and redemption should be real and verifiable: who holds the metal, who audits it, and whether you can actually take delivery.

A token that meets these conditions on paper is still a market asset with its own risks, including the price of gold itself. Passing a screen is not a reason to buy.

Questions to take to your scholar

• Do you treat USDT as money, as a claim on the issuer, or as not wealth at all?
• Does the interest earned on the reserves affect my holding of the token, even though I receive none of it?
• Is it permissible to use USDT only as a brief bridge between spot trades, and does that differ from holding it for months?
• How do the rules of sarf apply when I buy USDT with ringgit, dollars or another currency, on an exchange or peer to peer?
• Would a gold-backed or Shariah-reviewed stablecoin change your answer, and what evidence would you want to see?

If you hold stablecoins at the end of a lunar year, zakat may also be due on them; see zakat on crypto and the zakat calculator. To see how we score USDT, USDC and gold-backed tokens against our five questions, use the screener, read the methodology, and check the halal crypto list for what Malaysia's official table covers. For price context without calls, there is our markets page, and for the most-asked single coin, Is Bitcoin halal?

Frequently asked questions

Sources

Last updated: 12 Oct 2026.

• Tether reserves and profit, Q2 2026: ForkLog summary of Tether's report (31 Jul 2026); primary disclosures at tether.to/transparency
• SC Malaysia SAC resolutions on digital currency, goods and sarf (2020): Digital Assets from Shariah Perspective (PDF); hadith text and ribawi items: SC FAQ (PDF)
• SC Malaysia list of tradeable digital assets and Shariah status: sc.com.my/digital-assets
• Darul Uloom Karachi fatwa (Jun 2026): Dawn, 10 Jul 2026; The Block, 12 Jul 2026
• AAOIFI Shari'ah Standard No. 57, Gold and Its Trading Parameters (Nov 2016): English text via World Gold Council (PDF)
• Crypto perpetual contracts: SeekersGuidance, 2 Oct 2025
• IslamQA.info answer 504160 (26 Jul 2024): islamqa.info
• AXBHD stablecoin certification: FF News, 3 Aug 2026