No. Bitcoin is priced by the market, while a stablecoin is built to stay at one dollar. For a merchant, Bitcoin taken at checkout can be worth fewer dollars by payout time than it was when the customer paid, and a stablecoin will be worth the same. Which coin you take and which you keep are separate choices.
Why Bitcoin cannot be a stablecoin
A stablecoin has an issuer. That issuer is a company holding reserves against every token in circulation, and it exchanges the token for a dollar on demand. Bitcoin has no issuer, so there is nobody to redeem it with, and its price rests on what buyers and sellers agree to.
The gap shows up in the numbers. Over the twelve months to 11 August 2026, Bitcoin traded between $58,290 and $126,011 on Binance data, a range of more than two to one. Across the same period, USDT never sat more than 0.51 percent away from one dollar. Its price was checked every hour against Coinbase data, and that was the worst of 8,749 readings across the year.
What is a stablecoin?
A stablecoin is a cryptocurrency token that tracks the value of an outside asset, most often the US dollar, through reserves or an on-chain mechanism that maintains the link. It moves on the same public networks as any other token, settles in seconds to minutes, and holds a price that a merchant can quote against.
Total supply across all stablecoins stood at roughly $308 billion on 12 August 2026 according to DeFiLlama, up from $270 billion a year earlier. The segment peaked at $322.4 billion on 17 May 2026 and has contracted about 4.5 percent since, the first sustained decline in four years.
Why the price comes back to a dollar
The price comes back through redemption at the issuer. If USDC trades below a dollar, holders buy it on the open market and bring it to the issuer, who pays a dollar per token, which takes tokens out of circulation and pulls the price back up. Above a dollar it runs the other way: buyers take new tokens from the issuer at a dollar and sell them higher on the market.
This only works while redemption at the issuer is genuinely available, which is why reserve reports matter more than any marketing claim about stability. Tether publishes quarterly attestations prepared by BDO. The report for the quarter ended 30 June 2026 put USDT in circulation at $184.6 billion against total assets of $187.75 billion, leaving a surplus of $4.11 billion over liabilities. That cushion was $8.23 billion three months earlier, so it halved in a single quarter while supply barely moved.
The measured record is narrow. USDT sat a median 0.044 percent away from one dollar over the twelve months to 11 August 2026, checked hourly, with a worst single reading of 0.51 percent. USDC stayed inside 0.05 percent of a dollar on every daily reading over the same window on Kraken data.
What backs a stablecoin
Three backing models exist and two of them reach a checkout. In the first, an issuer holds reserves against every token in circulation. In the second, crypto collateral sits locked in a smart contract with a margin on top. The third ran on an algorithm, and almost nothing of it is left.
Fiat-backed stablecoins hold cash and short-term government debt against every token issued. USDT, USDC, PYUSD and RLUSD all work this way, and they account for the overwhelming majority of supply in circulation.
Crypto-backed stablecoins lock volatile collateral in smart contracts and over-issue against it, so $1 of token sits behind more than $1 of deposited crypto. DAI and its successor USDS follow this design, together holding about $11.4 billion on 12 August 2026.
Algorithmic stablecoins carried no meaningful collateral and relied on a second token to absorb selling pressure. The largest of them collapsed in May 2022, and the category never recovered a serious share of supply. A merchant has no reason to accept one, and no gateway of any size routes payments through them.
Stablecoin vs Bitcoin: the differences that matter to a merchant
Five differences change what happens at your checkout. Price movement between payment and settlement is the one that costs money. The other four shape how the payment is handled afterwards.
Volatility inside your settlement window. Annualised volatility figures tell a merchant nothing useful. What matters is how far the price can travel between the moment a customer confirms payment and the moment the funds become yours to spend. Measured on 105,120 five-minute and 8,760 hourly price readings for BTCUSDT over the twelve months to 11 August 2026:
| Settlement window | Median move | 90th percentile | 99th percentile | Windows with a fall over 2% |
|---|---|---|---|---|
| 10 minutes (one confirmation) | 0.08% | 0.28% | 0.71% | 0.01% |
| 1 hour | 0.19% | 0.68% | 1.72% | 0.32% |
| 24 hours (daily payout) | 1.20% | 3.43% | 7.18% | 17.2% |
| 72 hours (weekend) | 2.32% | 5.82% | 10.84% | 30.8% |
USDT moved 0.014 percent in a median 24-hour window over the same period, and 0.46 percent in its worst one. A merchant holding Bitcoin receipts over a weekend faced a drop of more than 2 percent in roughly one window out of three.
Liquidity. Neither coin is hard to sell, so liquidity is not what separates them. Bitcoin’s market value stood near $1.28 trillion on 12 August 2026, calculated from 20,068,928 coins in issue, and USDT and USDC together carried $255 billion in supply on the same date.
Fees and speed by network. This is where the common story is wrong. A standard Bitcoin transfer cost $0.27 to $0.36 on 12 August 2026, with the network running at 3 to 4 satoshis per virtual byte. That is cheaper than a USDT transfer on Ethereum at most hours of most days. The reason to put a stablecoin at the checkout is what happens to the amount afterwards, not what the transfer costs. Confirmation times do differ: Bitcoin needs roughly ten minutes per block, while USDT on Tron confirms in seconds. Our breakdown of USDT networks compared covers the per-network trade-offs in detail.
What payers actually hold. Customers pay in what sits in their wallet. USDT alone carried $183 billion across 130 chains on 12 August 2026, and it functions as the default dollar on exchanges across Asia, Latin America and the CIS. Bitcoin holders exist in large numbers, but Bitcoin is saved more often than it is spent.
What the payment leaves in your books. A stablecoin payment posts as a dollar-denominated amount that matches the invoice. A Bitcoin payment posts as a quantity of BTC whose dollar value has to be fixed at some moment, and every subsequent revaluation shows up in your books. The first payment closes on arrival, the second keeps generating entries.
USDC vs USDT: which stablecoin to accept
Accept both if your customers are spread across regions, and default to whichever one dominates where your traffic comes from. The choice is a question about your customer base rather than a question about token quality.
Supply, liquidity and where each one lives
USDT held $183.0 billion in supply on 12 August 2026, against $72.2 billion for USDC, per DeFiLlama. The distribution splits sharply. Just under half of USDT sits on Tron, at $90.7 billion, with $74.0 billion on Ethereum and $9.2 billion on BNB Smart Chain. USDC concentrates on Ethereum, which holds 64 percent of its supply, followed by Solana at 9 percent and Base at $4.2 billion.
Supply ranks one way and turnover ranks the other. Artemis data reported through Bloomberg in January 2026 put USDC transfer volume for 2025 at $18.3 trillion against $13.3 trillion for USDT, out of roughly $33 trillion across all stablecoins before exchange and bot transfers are filtered out. USDT is the larger float; USDC is the faster-moving one.
Network coverage
USDT is available on more chains in absolute terms, but the practical coverage question is narrower: which networks your gateway actually opens for you, and what each costs your customer to use. You can accept USDT payments with Speend on five networks, Tron, Ethereum, BNB Smart Chain, Polygon and Solana, confirming in under 30 seconds on Tron, 5 to 15 seconds on BNB Smart Chain and Polygon, and under a second on Solana.
USDC coverage looks different in practice than on paper. Its supply concentration on Ethereum means an EU merchant defaulting to USDC will see more customers arriving on a network where fees rise with congestion, so opening a second USDC route matters more than it does for USDT.
Where each one dominates
Geography decides this. In the European Union, venues have delisted USDT for retail users under the MiCA framework while Circle registered USDC as a compliant issuer, so a European customer is far more likely to hold USDC. Across Asia, Latin America and the CIS, USDT on Tron is the working dollar, and asking those customers for USDC adds a conversion step they will resent.
A merchant selling into both should open both rather than pick a winner. If you want the underlying detail on the larger of the two, our guide to what USDT is covers issuance, reserves and network behaviour.
Stablecoins list 2026: supply, backing and networks
Twelve tokens carry almost all of the supply that matters for payments. Figures are DeFiLlama circulating supply on 12 August 2026.
Want to accept crypto payments on your website?
Fast setup and KYC/KYB, fee starts from 0.5%
Contact Us| Stablecoin | Supply | Type | Main networks |
|---|---|---|---|
| Tether (USDT) | $183.0B | Fiat-backed | Tron, Ethereum, BNB Smart Chain, Solana |
| USD Coin (USDC) | $72.2B | Fiat-backed | Ethereum, Solana, Base, Arbitrum |
| Sky Dollar (USDS) | $6.6B | Crypto-backed | Ethereum, Arbitrum, Solana, Base |
| Dai (DAI) | $4.8B | Crypto-backed | Ethereum, Polygon, Arbitrum, BNB Smart Chain |
| World Liberty Financial USD (USD1) | $4.0B | Fiat-backed | BNB Smart Chain, Ethereum |
| Ethena USDe (USDe) | $4.0B | Crypto-backed | Ethereum, Solana, Base |
| Global Dollar (USDG) | $3.4B | Fiat-backed | Solana, Ethereum, X Layer |
| PayPal USD (PYUSD) | $2.8B | Fiat-backed | Ethereum, Solana, Arbitrum |
| Ondo US Dollar Yield (USDY) | $2.1B | Fiat-backed | Ethereum, Solana, Mantle |
| Ripple USD (RLUSD) | $1.6B | Fiat-backed | XRP Ledger, Ethereum |
| TrueUSD (TUSD) | $0.5B | Fiat-backed | Ethereum, Tron, BNB Smart Chain |
| Euro Coin (EURC) | $0.5B | Fiat-backed, euro | Ethereum, Solana, Base |
Two exclusions are deliberate. Tokenised money-market funds such as BUIDL and USYC appear high in supply rankings but redeem on fund schedules rather than on demand, which makes them unusable at a checkout. One token in the top 25 by supply is left out for a different reason: parties connected to its issuance are under sanctions.
What to accept versus what to keep
These are two separate decisions, and most comparisons collapse them into one. Accept whatever your customers want to pay with, because refusing a payment method costs a sale. Keep only what you are willing to watch move, because everything on your balance sheet is a position whether you chose it or not.
A merchant who accepted Bitcoin through the last twelve months and held the proceeds saw them fall by roughly half at the low, from $126,011 down to $58,290. The same revenue converted at receipt sat unchanged in dollar terms. Neither outcome was a payment decision. Both followed from what happened after the payment landed.
The rule that follows is short. Take every coin your checkout can support. Convert at settlement unless you have a reason to hold that someone in the company is willing to write down and own. Put a cash ceiling on any crypto balance you do keep, and stay under it.
How auto-conversion removes volatility from the equation
Auto-conversion fixes the value at the moment the payment is received, so later price moves no longer reach your revenue. The customer pays in Bitcoin or in any supported coin, the gateway converts at receipt, and the merchant balance holds a stable-value amount that matches the invoice.
Conversion pricing depends on the coin, so it is worth reading closely. Speend charges from 0.5 percent on payments, and network fees pass through at blockchain cost with no markup. Bitcoin converted to a stablecoin at receipt carries no conversion charge; converting USDT or Ethereum into a different payout currency costs 1 percent. There is no setup fee and no monthly fee, and a coin becomes available on your account within one business day after verification.
What this changes operationally: the 17.2 percent of days when Bitcoin fell more than 2 percent stop being your problem, because you never held the position across one. Settlement can also be split, with part converted and part retained, if you want a defined crypto exposure rather than none. You can auto-convert to USDT at settlement and pay out to a self-custodial wallet, an exchange account or a supported banking channel.
When accepting Bitcoin still makes sense
Bitcoin belongs at the checkout in several real cases, and a comparison that ends at “always take stablecoins” is not honest about them.
High-ticket sales to Bitcoin-native buyers are the clearest one. Someone buying a car, a property deposit or a luxury watch with BTC is not going to convert to USDT first, and refusing the payment method loses the whole transaction rather than a percentage of it.
Donations and tipping follow similar logic, since the payer is choosing the asset deliberately. Lightning changes the arithmetic for small amounts, settling in seconds at a fee close to zero, which makes low-value Bitcoin payments practical in a way on-chain transfers are not. Businesses that intend to hold BTC on the balance sheet as a matter of policy also have a coherent reason to receive it directly.
In each of these cases the line is the same: taking Bitcoin is a checkout decision, keeping it is a decision about company money. Our guide to accepting Bitcoin as a business covers the setup side, and you can accept Bitcoin payments with conversion applied at receipt.
FAQ
Is Bitcoin a stablecoin?
No, and neither is wrapped Bitcoin, which is regularly mistaken for one. Wrapped Bitcoin is a token backed one for one by BTC, so its price follows Bitcoin rather than the dollar. A token that holds a dollar value needs an issuer redeeming it at par.
What is a stablecoin in simple terms?
A token that is meant to always be worth the same as one dollar, backed either by reserves held at an issuer or by crypto collateral locked in a contract. You send it like any other cryptocurrency and it arrives worth what it said on the invoice.
Which stablecoin is the safest?
Safety here means how dependable redemption is and how fully the issuer reports, since the major tokens all track a dollar equally closely. USDC and PYUSD publish under US regulatory frameworks; Tether publishes quarterly attestations by BDO showing $4.11 billion of assets above liabilities as of 30 June 2026.
What is the difference between USDT and USDC?
Size, issuer and geography. USDT holds $183.0 billion in supply and dominates Asia, Latin America and the CIS, mostly on Tron; USDC holds $72.2 billion, concentrates on Ethereum, and has become the default in the European Union.
Should my business accept Bitcoin or stablecoins?
Both, if your customers pay in both. The decision that actually matters is what you do after receipt, and converting at settlement gives you the same dollar amount regardless of which coin arrived.
What are the two main types of stablecoins?
Fiat-backed, which hold cash and short-term government debt against every token issued, and crypto-backed, which lock excess volatile collateral in smart contracts. Fiat-backed tokens carry nearly all of the supply used in payments today.
Can a stablecoin lose its peg?
Yes, and several have. The measured record for the largest tokens is narrow: the worst hourly reading for USDT over the past twelve months was 0.51 percent away from a dollar, and USDC stayed within 0.05 percent on daily readings.
Do I have to hold crypto if I accept stablecoins?
No. With auto-conversion at receipt you hold a stable-value balance and withdraw on demand, to a self-custodial wallet, an exchange or a supported banking channel in the jurisdictions where fiat payout is available.
Which stablecoin has the lowest transfer fees?
Fees depend on the network rather than the token. USDT on Tron and on Solana costs a fraction of the same transfer on Ethereum, and a merchant removes a step for the customer by opening more than one network for the same coin.
Are stablecoins regulated?
Frameworks now exist on both sides of the Atlantic, and both of them are addressed to issuers rather than to the merchants who accept the coins. The GENIUS Act was signed on 18 July 2025 and covers payment stablecoin issuers in the United States. In Europe the practical effect for a merchant has been a change in which token local customers hold.
Accept both with Speend
Speend takes Bitcoin, USDT, USDC, Ethereum and more than 300 other coins across 18 networks, with settlement converted at receipt so the amount on your balance matches the amount on the invoice.
Integration runs through plugins for WooCommerce, Shopify and Magento, a REST API with a sandbox that mirrors production, or payment links and hosted invoices that need no code. Merchant verification takes one to three business days, and coins become available on your account within a business day after that.
Start by setting up crypto payments, or go straight to the coin pages to accept USDT payments on five networks.
