USDC vs USDT: which should you earn yield on?
USD Coin (USDC) and Tether (USDT) are the two largest stablecoins in the world, together accounting for the vast majority of all stablecoin value. If you're deciding which to hold — or whether to hold both — here's an honest, side-by-side comparison.
| Factor | USDC | USDT |
|---|---|---|
| Issuer | Circle (US-based) | Tether Limited |
| Reserve transparency | Monthly attestations, conservative mix | Quarterly attestations, broader mix |
| Regulatory footprint | Strong US + EU posture | More offshore-oriented |
| Market size | Large | Largest |
| Liquidity / exchange support | Very broad | Broadest |
| Primary networks | Ethereum, Solana, Base, more | Ethereum, Tron, Solana, more |
| Historical depeg events | Brief (SVB, Mar 2023) | Several brief dips |
| Yield on Northvault | Up to 16% APY | Up to 16% APY |
The case for USDC
USDC, issued by Circle, has built its reputation on transparency. Its reserves are held largely in cash and short-dated US Treasuries, with monthly third-party attestations. Circle operates with a clear US regulatory posture and has pursued compliance proactively. For users who prioritise reserve quality and regulatory clarity, USDC is the conservative pick.
The case for USDT
USDT, issued by Tether, is the largest and most liquid stablecoin in the world. It is accepted virtually everywhere and dominates trading pairs on most exchanges, and is especially dominant on the Tron network. Tether has improved its reserve disclosures over time. For users who prioritise liquidity and universal acceptance, USDT is hard to beat.
Our recommendation: hold both
The single biggest risk with any stablecoin is issuer risk — the possibility that the entity behind it has a reserve, regulatory, or operational problem. You can't eliminate that risk, but you can avoid concentrating it. Holding a mix of USDC and USDT means a problem with one issuer affects only part of your balance.
That's why Northvault supports both, at the same APY, and lets you split your deposit however you like.
Frequently asked questions
USDC, issued by Circle, is generally regarded as having more transparent and conservative reserves, with monthly attestations and a US regulatory footprint. USDT, issued by Tether, is larger and more liquid but has historically faced more questions about reserve composition. Neither is risk-free; both have experienced brief depeg events. Splitting exposure across both is a reasonable way to reduce single-issuer risk.
The stablecoin itself doesn't determine the yield — the platform and its strategy do. On Northvault, USDC and USDT earn the same base APY. Differences in yield between platforms reflect differences in how deposits are deployed, not the choice of stablecoin.
Yes, and both have temporarily. USDC briefly fell to about $0.87 in March 2023 during the Silicon Valley Bank crisis before recovering. USDT has had several brief dips below $1. Pegs are usually restored, but a depeg is a real risk you accept when holding any stablecoin.
Diversifying across both reduces your exposure to any single issuer's problems. Northvault supports both and lets you split your balance, which many users do specifically for this reason.
Both are available on many blockchains. Northvault uses Solana as its primary network because transaction fees are a fraction of a cent and confirmations take about a second. USDC has slightly broader native multi-chain support; USDT is especially dominant on Tron.
Same 16% APY base rate. Split your balance to reduce issuer risk.