Over the last few years, stablecoins have quietly become a settlement tool for cross-border business payments. Companies that struggle with card declines, slow international wires or currency controls often ask the same question: can we simply pay in USDT? The answer is usually yes, but the details matter more than most teams expect. This guide explains what Tether is, how the underlying networks differ, and what to check before you accept or send it.
What a stablecoin actually is
Tether (USDT) is a token designed to track the value of the US dollar. Unlike Bitcoin or Ethereum, it is not meant to appreciate; its purpose is to move dollar-denominated value across blockchain networks without the price volatility of ordinary crypto assets. The issuer states that tokens are backed by reserves, and the peg is maintained through issuance and redemption at the issuer level plus arbitrage on exchanges.
For a business, the practical consequence is simple: an invoice quoted in USD can be settled in USDT with roughly equivalent value, and settlement happens on a public network rather than through correspondent banks. That said, "roughly" is the operative word. Small deviations from the peg happen, and exchange or off-ramp spreads apply when you convert to fiat.
Networks: the same token, very different behaviour
One of the most common and expensive mistakes is treating USDT as a single thing. Tether is issued on multiple blockchains, and each one has its own address format, fee structure and confirmation speed. The most widely used for commercial payments are:
- TRON (TRC-20) — popular for merchant payments because network fees are typically low and confirmations are fast. Widely supported by exchanges and payment processors.
- Ethereum (ERC-20) — the oldest and most institutionally supported option, but fees depend on network congestion and can rise sharply during busy periods.
- Other networks — USDT also exists on several additional chains and layer-2 networks, each with its own trade-offs in cost, speed and wallet support.
Critically, these are not interchangeable. Sending TRC-20 USDT to an ERC-20 address, or vice versa, can result in permanently lost funds. Any business accepting USDT must state the expected network clearly on the invoice or checkout page, and any business sending it must verify the network before confirming the transaction. A useful habit: send a small test amount first when paying a new counterparty for the first time.
Fees: three layers, not one
People often say stablecoin transfers are "almost free". In reality there are three distinct cost layers, and only the first is a blockchain fee:
- Network fee — paid to the blockchain to process the transaction. Varies by network and current congestion.
- Platform or exchange fee — withdrawal fees charged by the exchange or custodial wallet you send from, which are set by that provider and are often higher than the raw network cost.
- Conversion spread — the difference between the market rate and the rate you actually receive when converting USDT to local currency.
When comparing USDT to a card payment or a SWIFT wire, compare all three layers, not just the on-chain fee. Depending on corridor, amount and provider, stablecoins can be dramatically cheaper — or, for small amounts on a congested network, not cheaper at all.
Operational and compliance considerations
Accepting stablecoins introduces obligations that a card payment does not. Points worth working through with your finance and legal teams:
- Regulatory status. Rules on holding, accepting and reporting crypto assets differ significantly by jurisdiction and continue to evolve. Check local requirements before you build a process around it.
- Accounting treatment. Decide whether you record the invoice in USD and treat USDT as settlement, and how you handle any small differences at conversion time.
- Irreversibility. Blockchain transfers cannot be reversed. This eliminates chargeback risk for the merchant but places the burden of accuracy entirely on the payer.
- Key management. If you self-custody, wallet keys are a critical business asset. Many companies prefer a reputable custodial provider precisely to avoid this operational risk.
- Counterparty screening. Know who you are receiving funds from. Many providers offer address screening tools for exactly this reason.
Where it fits well — and where it does not
Stablecoin settlement tends to work best for B2B relationships with repeat invoices, cross-border suppliers, and customers in markets where card acceptance or international wires are unreliable or slow. It also suits prepaid, top-up style products, where a customer loads a balance rather than making a one-off consumer purchase.
It fits poorly where the buyer expects consumer protection, refund flows or instalment options. In those cases, cards remain the better instrument. Most businesses end up offering both rather than choosing one.
A practical checklist
- Publish the accepted network(s) and the exact receiving address on the invoice.
- Ask for the transaction hash after payment so you can verify on a block explorer.
- Define how many confirmations you require before treating the payment as final.
- Document your conversion and reconciliation process so finance is not improvising each month.
- Run a small test transfer with every new counterparty.
At UIPAPP, credit top-ups can be paid with Visa, Mastercard or USDT, so teams that already operate in stablecoins can fund messaging balances the same way they settle other supplier invoices. Whichever method you choose, the underlying principle is the same: pick the instrument that matches your corridor, your counterparty and your reconciliation workflow — not the one that simply looks cheapest at first glance.