Choosing a crypto payment processor comes down to one question: how much of each sale disappears into fees? The answer varies dramatically across providers, especially when you factor in network costs, volume discounts, and hidden charges that only appear during payouts. This guide breaks down the actual processing rates for BTCPay Server, NOWPayments, CoinGate, and BitPay so merchants can pick the option that keeps the most money in their pockets.
NOWPayments
NOWPayments sits at the lower end of the fee spectrum with a standard rate of 0.5% per transaction, which is already competitive among hosted gateways. The platform supports over 100 cryptocurrencies and offers both fixed-rate and float-rate conversion modes, letting merchants lock in an exchange rate for up to fifteen minutes while customers complete checkout. For businesses looking to minimize costs further, the crypto payment gateway lowest fees btcpay integration allows self-hosted setups that eliminate gateway fees entirely for on-chain payments.
Withdrawals from NOWPayments are free when sent to external wallets, though currency conversions during checkout may carry a spread above interbank rates. There are no monthly fees or setup charges, and the platform does not impose minimum transaction amounts beyond what individual blockchains require. High-volume merchants on enterprise agreements can negotiate custom rates below the published 0.5%.
The trade-off is that NOWPayments operates as a custodial gateway — funds pass through their systems before reaching your wallet. This adds a layer of counterparty risk compared to non-custodial alternatives but simplifies compliance since NOWPayments handles KYC on the merchant side.
BTCPay Server
BTCPay Server is the only fully non-custodial option among the major players, running as open-source software on your own infrastructure. There are zero processing fees from the platform itself because it connects directly to your node or third-party payment forwarder. You pay only the blockchain network fee for each transaction, which typically ranges from a few cents to a couple of dollars depending on network congestion.
This makes BTCPay Server the clear winner for high-volume merchants who process thousands of dollars per month. A store moving $500,000 monthly through BTCPay pays effectively nothing in gateway fees, compared to $5,000+ with a 1% provider or $10,000+ with BitPay’s base tier. The cost advantage grows proportionally with volume.
The downside is technical complexity. Running a full Bitcoin node requires significant storage and bandwidth, and even using light client connections or payment forwarders introduces trust assumptions similar to custodial services. Setup takes hours of configuration, and ongoing maintenance demands familiarity with Linux servers, Lightning Network routing, and security hardening. Smaller merchants without developer resources often find the time cost outweighs the fee savings.
Self-hosted vs. third-party forwarders
Merchants who run their own nodes avoid all intermediary fees but need to manage uptime, backups, and security. Those who use third-party forwarders like Bloq or Mercuryo pay the forwarder a small markup on network fees while still avoiding gateway-level percentages. Neither approach matches the pure zero-fee model of direct-to-node operation, but both remain substantially cheaper than percentage-based processors for stores above roughly $50,000 monthly volume.
CoinGate
CoinGate charges 1% on its Standard plan with no fixed per-transaction surcharge, placing it between NOWPayments and BitPay on the fee scale. The platform supports fiat on-ramps and off-ramps, allowing merchants to receive payouts in euros via SEPA transfers or keep funds in cryptocurrency. Crypto withdrawals to external wallets are free, and SEPA withdrawals carry no fee above a 50 EUR minimum transaction amount. SWIFT international transfers cost 0.50% with a 50 EUR minimum fee.
Manual currency conversions through the dashboard incur a 1% fee, while automatic conversions at checkout are excluded from this charge. Payouts to sellers or affiliates cost 0.50 EUR plus 0.5%, and refunds run 0.25 EUR per transaction with an additional 0.1% if the refund currency differs from the original payment currency. These ancillary fees add up quickly for marketplaces or businesses with frequent cross-currency operations.
CoinGate holds funds in a platform balance rather than forwarding directly to your wallet, which means withdrawal timing and limits depend on your account verification level. The custody model simplifies accounting but introduces the same counterparty considerations as NOWPayments.
BitPay
BitPay publishes the highest starting rates among mainstream processors at 2% plus $0.25 per transaction for merchants processing under $500,000 monthly. Rates decrease with volume: 1.5% + $0.25 for $500,000 to $999,999, and 1% + $0.25 from $1,000,000 onward. The fixed per-transaction component makes BitPay particularly expensive for low-value orders — a $10 purchase incurs a $0.45 total fee, equivalent to 4.5%.
BitPay supports fewer cryptocurrencies than competitors, focusing on Bitcoin, Ethereum, Litecoin, Bitcoin Cash, and stablecoins like USDC. Fiat settlement is available in USD, EUR, GBP, and several other currencies, though settlement options vary by region and regulatory status. The platform processes billions annually and has established banking relationships that simplify tax reporting for US-based merchants.
BitPay applies higher rates to industries classified as high-risk, and its terms allow unilateral changes to supported coins and pricing structures with notice. Merchants seeking maximum control over their fee structure will find BitPay’s opaque pricing less attractive than transparent tiered models.
Fee Comparison
| Provider | Standard Rate | Fixed Fee Per Txn | Volume Discount | Network Fees |
|---|---|---|---|---|
| BTCPay Server | 0% | None | N/A | Blockchain only |
| NOWPayments | 0.5% | None | Yes (enterprise) | Blockchain only |
| CoinGate | 1% | None | Custom (enterprise) | Blockchain + withdrawal |
| BitPay | 2% + $0.25 | $0.25 | Tiered by volume | Included in rate |
For merchants processing under $50,000 monthly, NOWPayments at 0.5% generally offers the best balance of low fees and ease of use. Stores above $100,000 monthly should evaluate whether the technical overhead of BTCPay Server justifies the near-zero gateway costs. CoinGate works well for businesses that need regular fiat conversion, while BitPay remains viable for merchants prioritizing brand recognition and fiat settlement speed over fee optimization.
Hidden Costs That Change the Math
Processing percentages tell only part of the story. Network fees alone can exceed gateway charges on certain blockchains — a Tron or Solana transfer might cost more in gas than a 0.5% gateway fee on a small order. Currency conversion spreads add another layer of expense when merchants accept volatile assets but price products in stablecoins or fiat. Withdrawal fees compound the problem if a provider charges per outgoing transfer.
Some gateways build their margins into exchange rate markups rather than explicit fees, making comparisons harder. Always request a written quote that covers processing, network forwarding, conversion, withdrawal, payout, and refund charges before committing. The cheapest headline rate can become the most expensive once every transaction type is accounted for.