How to Pay With USDT or USDC: A Beginner's Step-by-Step Guide

To pay with USDT or USDC, buy the stablecoin on an exchange or wallet, choose the network the merchant shows (for example Tron or BNB Chain), and send the exact amount to the address or QR code provided. Always match the network and the amount, including decimals.

What stablecoins are

USDT and USDC are digital dollars: one token is designed to be worth one US dollar. That makes them practical for paying online without card fees or exchange-rate surprises.

Step by step

1. Get USDT or USDC from an exchange or a wallet app you trust.

2. On the checkout page, choose the network you'll send on — Tron (TRC-20), BNB Smart Chain (BEP-20), Polygon, Base or Solana.

3. Copy the exact amount shown, including every decimal. The small unique decimals help match your payment automatically.

4. Copy the address (or scan the QR code) and send from your wallet on the same network.

5. Wait for the network to confirm. Your balance is updated once the payment is confirmed.

Avoid the two common mistakes

Wrong network: sending on a different network than the one selected can make the payment impossible to match.

Wrong amount: rounding the amount can prevent automatic matching. Copy it exactly.

Network fees

Your wallet charges a small network fee on top of the amount. Tron and BNB Chain are usually cheap for USDT; Base, Polygon and Solana are usually cheap for USDC.

Frequently asked questions

What if I send after the timer ends?

You can leave a refund address on the payment page. If your funds reach us, they're credited to your wallet or refunded within 2 working days.

Which network is cheapest?

It changes over time; Tron, BNB Chain, Base, Polygon and Solana all tend to have low fees. Use whichever your wallet supports.

Is there a minimum top-up?

Yes, the minimum top-up on SMS Hallo is $5.

Last updated 2026-09-28 · SMS Hallo