BTC to USDT Swap Fees Compared

Three non-custodial protocols dominate the native BTC-to-stablecoin swap market in 2026: BOB Gateway, THORChain (currently paused the trading) and NEAR Intents. All three let you convert Bitcoin to USDT without a centralized exchange, without wrapping and without identity verification. But their fee structures are completely different - and for large trades, the difference compounds into hundreds of dollars.

Key Takeaways

• BOB Gateway charges zero protocol fees; total fees run approximately 0.025% for BTC↔USDT swaps between 0.05 and 2 BTC - the lowest of any non-custodial protocol.

• THORChain's slip-based fee scales with trade size, so larger swaps cost proportionally more: a ~2 BTC swap can incur ~0.3–0.4% in slip — roughly 12x BOB Gateway's fee.

• Near Intents' market maker model is competitive at standard sizes but keeps fees low through solver competition rather than pool depth.

• BOB Gateway's RFQ model is uniquely suited to large trades: no structural slippage increase as size grows.

• Settlement time matters as a cost factor: Longer settlement allows for more market volatility. BOB Gateway settles in ~10 minutes [limited by Bitcoin's confirmation time] vs 15–40 minutes on THORChain.

How Each Protocol's Fee Model Works

BOB Gateway

BOB Gateway uses a Bitcoin intents-based request-for-quote (RFQ) model. Solvers fill each swap with the tightest available rate. The protocol charges zero platform fees. The only costs are:

• Solver fee - kept competitive through BOB's solver network and real-time LP bidding.
• Network fees - covering any routing fees and destination chain gas fees.

There is no slip fee, and no protocol fee on top. The rate shown is the best market rates, with fees averaging at about 0.025% for swaps above 0.05BTC.

THORChain

THORChain is a decentralized liquidity protocol that routes cross-chain swaps through RUNE as the intermediate asset. Fees include:

• Slip-based fee - scales with trade size relative to pool depth. Total fees between 0.3–0.4% based on BOB's own quote analysis across trade sizes of 0.05 to 2 BTC.
• Two-pool routing — because every swap goes asset → RUNE → asset, it incurs slippage on both legs and depends on RUNE pool depth, a cost single-hop intents-based protocols avoid.

Near Intents

Near Intents routes BTC-to-USDT swaps through an intents-based model where market makers compete to fill each swap. Fees include:

• Solver spread - the market maker's margin, competitive and driven by solver competition; embeds destination-chain gas.
• Protocol fee - 1 pip per transaction

Total average fees - 0.05-0.09% for swaps above 0.05 BTC.

Side-by-Side Fee Breakdown

(Table comparing effective swap fees for BOB Gateway, THORChain, and Near Intents. $10K swap: $2.50, $41, $5. $50K swap: $11, $161, $29. $100K swap: $22, $319, $83. BOB Gateway is lowest at every size)

How Fees Scale With Trade Size

• Under $5,000: All three protocols are competitive. BOB Gateway has the edge.
• $5,000–$50,000: BOB Gateway maintains stable LP margins. THORChain's fee begins to increase meaningfully - a $20K swap may incur 0.3-0.4% in slip.
• Above $50,000: BOB Gateway's RFQ model offers a 0.022% fee for $100k trades, significantly undercutting THORChain (0.3%) and Near intents (0.075%).

Which Protocol Is Cheapest for Your Trade Size?

(Table recommending a protocol by trade size. Under $1,000: any of the three (BOB slightly better). $1,000–$10,000: BOB Gateway or Near Intents. $10,000–$100,000: BOB Gateway. Above $100,000: BOB Gateway)

FAQ

Which protocol has the lowest fees for converting BTC to USDT? BOB Gateway has the lowest total fees for most BTC-to-USDT swap sizes in 2026, averaging about 0.025% for swaps of between 0.05 and 2 BTC in size. It charges zero protocol fees and its RFQ model keeps LP margins competitive through real-time solver bidding.

Does THORChain charge fees for BTC to USDT swaps? Yes. THORChain charges a slip-based fee that scales with trade size. Based on BOB's quote analysis, total fees can reach up to 0.3–0.4% for larger swaps.

Does Near Intents have slippage on BTC to USDT swaps? Near Intents' intents-based model minimises slippage by having market makers compete to fill each swap rather than routing through a pool. Fees consist of a 0.01% base protocol fee plus competitive market maker spreads, totalling between 0.05% and 0.09% for typical swap sizes.

What is zero-conf on BOB Gateway? Zero-confirmation technology will allow BOB Gateway to offer zero-slippage swaps, where users receive the exact expected amount of USDT even before the Bitcoin blockchain confirms the BTC transaction. Swaps settle in under 10 seconds. Currently under development and testing.

Can I swap large amounts of BTC to USDT non-custodially? Yes. BOB Gateway supports large BTC-to-USDT swaps through its professional solver network. The RFQ model is specifically well-suited to large trades.

Compare live BTC-to-USDT rates and swap at the lowest fees at app.gobob.xyz