USDT Q3 2026 Report: Supply & Regulation

Last updated: October 1, 2026. DefiLlama shows USDT circulating supply of $183.8 billion, with $92.4 billion on Tron, $73.6 billion on Ethereum, $9.2 billion on BSC, and $2.7 billion on Solana. Tether's BDO Italia assurance report as of June 30, 2026, listed reserves of $187,751,426,411 against liabilities of $183,641,897,215, including $183,622,105,630 related to digital tokens issued, for an excess of $4,109,529,196 (BDO report PDF; Tether transparency). Those sources use different clocks. Do not average them.

Key Takeaways

DefiLlama circulating USDT was $183.8 billion on October 1, 2026.
Tron held $92.4 billion of USDT and Ethereum held $73.6 billion in the same cut.
BDO Italia's June 30, 2026 report showed reserves $187,751,426,411 vs liabilities $183,641,897,215 (BDO PDF).
US Treasury bills were $114.96 billion in that attestation; excess reserves were $4,109,529,196 (Forbes summary of the BDO figures).
MiCA exclusion and GENIUS Act fit remain the regulatory frame; this update does not invent a compliance status change.

Supply in Q3 2026

This page began as a Q2 2026 report when supply was quoted near prior-quarter levels. The live market has moved. On October 1, 2026, DefiLlama counted $183.8 billion of circulating USDT. Chain split in the same snapshot: Tron $92.4 billion, Ethereum $73.6 billion, BSC $9.2 billion, Solana $2.7 billion, with smaller balances on Arbitrum, Plasma, Polygon, and TON. Tron remains the transfer-heavy leg. Ethereum remains the DeFi-heavy leg.

A stock is not a flow. High supply on Tron does not, by itself, prove adjusted economic volume leadership versus USDC. It does prove where redeemable USDT balances sit today. For corridor fees, see payment rails by network.

Reserves and the June 30 attestation

Tether publishes quarterly assurance reports. The June 30, 2026 BDO Italia report stated reserves of $187,751,426,411, liabilities of $183,641,897,215, token-related liabilities of $183,622,105,630, and excess reserves of $4,109,529,196. Forbes independently walked the same PDF and noted US Treasury bills of $114.96 billion plus reverse-repo and other reserve lines. The engagement is point-in-time ISAE 3000 assurance, not a continuous full audit.

Do not describe the October 1 DefiLlama circulating figure of $183.8 billion as the attested reserve number. Attestations lag issuance. Compare disclosure models via USDT vs USDC and stablecoin risks.

Regulatory pressure without invented outcomes

MiCA enforcement pushed major EU venues to restrict or delist USDT for EEA users. See MiCA stablecoin categories for the product taxonomy. Separately, US payment-stablecoin rules under the GENIUS Act frame reserve and issuer requirements that Bitcoin-heavy or offshore structures may fail. This page does not claim a 2026 licensing win or loss beyond what those regimes publicly require.

Emerging-market payment corridors still clear large USDT ticket flow on Tron because users optimize for fees and availability, not for EU exchange listings. That commercial split is the two-tier market: regulated venue access versus on-chain settlement depth.

How to use the figures

Quote $183.8 billion circulating from DefiLlama as of October 1, 2026, including Tron $92.4 billion and Ethereum $73.6 billion. Quote reserves $187,751,426,411, liabilities $183,641,897,215, and excess $4,109,529,196 from the June 30, 2026 BDO PDF. Do not invent a reserve ratio by dividing June reserves by October supply.

Broader market context sits in our stablecoin statistics for 2026. Refresh this page when DefiLlama ranking changes materially or when Tether publishes the next quarterly assurance PDF.

Conclusion

USDT remains the largest dollar stablecoin by circulating supply at $183.8 billion on October 1, 2026 per DefiLlama, with Tron still the deepest chain balance at $92.4 billion. The June 30, 2026 attestation showed $187,751,426,411 of reserves against $183,641,897,215 of liabilities. Regulatory exclusion in Europe and US rule fit are unresolved commercial constraints, not excuses to invent reserve math.

FAQ

1. How much USDT is in circulation now?

$183.8 billion circulating per DefiLlama on October 1, 2026.

2. Where does most USDT live on-chain?

Tron $92.4 billion and Ethereum $73.6 billion in the October 1 DefiLlama cut, followed by BSC $9.2 billion and Solana $2.7 billion.

3. What did the latest Tether attestation show?

As of June 30, 2026 per the BDO report: reserves $187,751,426,411, liabilities $183,641,897,215, excess $4,109,529,196, with $114.96 billion in US Treasury bills as summarized by Forbes.

4. Is USDT MiCA or GENIUS compliant?

This update does not assert compliance. EU MiCA venue restrictions and US GENIUS Act reserve/issuer tests remain the live constraints to monitor on primary regulatory texts and issuer filings.

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