One of the most common questions in crypto is: should I use ERC20 or TRC20 for USDT and stablecoin transfers? The short answer is that TRC20 transfers on the Tron network are typically far cheaper than ERC20 transfers on Ethereum — but there are important tradeoffs to understand before choosing.
ERC20 Fee (Ethereum Network)
ERC20 USDT transfers on Ethereum require approximately 65,000 gas units. At current gas prices of 2–5 Gwei with ETH at $1,800, this works out to roughly $0.23–$0.58 per transfer under normal conditions. However, during periods of high network congestion, ERC20 fees can easily climb to $5–$20 or more.
ERC20 is widely recognized as the most expensive option for simple stablecoin transfers — but also the most widely supported and trusted standard in DeFi.
TRC20 Fee (Tron Network)
TRC20 USDT transfers on Tron use a resource model based on "Energy" and "Bandwidth" rather than gas. If your wallet has sufficient staked TRX energy, transfers can be nearly free. For wallets without staked energy, the cost is approximately 13.4 TRX per transfer (reduced from 27.25 TRX following Tron Proposal #104 in August 2025). At a TRX price of $0.10–$0.15, this means TRC20 transfers cost roughly $1.34–$2.00 per transaction without energy.
Side-by-Side Fee Comparison
- ERC20 (Ethereum): $0.01 – $20+ (highly variable based on congestion)
- TRC20 (Tron): ~$0 with staked energy; ~$1.34 without energy
- BEP20 (BNB Chain): $0.05 – $0.30 per transfer
- Polygon ERC20: $0.001 – $0.01 per transfer
Which Should You Use?
For simple, large-value stablecoin transfers, TRC20 is generally cheaper — especially if you stake TRX for energy. For DeFi interactions, lending protocols, and DEX trading, ERC20 on Ethereum or a Layer-2 network is the standard. If cost is your primary concern and both the sender and receiver support TRC20, it remains the dominant choice for pure USDT movement.