Bull Bitcoin announced on November 5, 2026 that it is introducing Payjoin as the default for on-chain deposits and withdrawals from its BULL Wallet. In its announcement and blog post, the company says it is the first Bitcoin exchange to do so, and calls the feature “Payjoin Trading”: every on-chain buy and sell from the wallet is intended to be a Payjoin, with nothing for the user to switch on.
CEO Francis Pouliot followed on November 6 with a plain example. You start with one UTXO — an unspent transaction output, effectively a spendable piece of bitcoin. You buy Bitcoin through BULL Wallet. The coins arrive on-chain. You still have one UTXO. (Pouliot’s post; the company also posted a tutorial the same day.)
Collaborative trading by default plus automatic coin consolidation is a meaningful step for privacy and usability. It does not hide trades from the exchange. It does make the public chain harder to read, and it gives holders a cleaner wallet without a separate consolidation step.
What Payjoin Trading actually does
Payjoin is a collaborative Bitcoin transaction: both parties contribute inputs. On a buy, the user’s wallet can put an existing coin into the same transaction that delivers the newly purchased Bitcoin, so the purchase merges with what they already hold. On a sell, Bull Bitcoin can add one of its own UTXOs. The company’s blog puts it simply: the receiver adds one UTXO, while the sender can use several.
That layout weakens two heuristics chain-analysis firms lean on. The first is common-input-ownership: the assumption that every input belongs to the same person. The second is change-output detection: guessing which output is “change.” Bull Bitcoin also says its implementation reduces round-number amounts and address reuse, making salary-sized deposits or dollar-cost-averaging patterns harder to reverse-engineer from public amounts alone.
What is new is the exchange default. BULL Wallet already shipped experimental Payjoin V2 support in December 2024 with Dan Gould and the Payjoin Dev Kit team. Making on-chain exchange trades Payjoins by default is this week’s step. Lightning and Liquid orders are not Payjoins. The company says the software on both sides is free and open source.
From Bull Bitcoin’s FAQ: users need BULL Wallet, an exchange account, and a login in the app; the wallet needs at least one UTXO, so the first purchase into an empty wallet is a normal transaction; on-chain exchange orders start at 25,000 sats; the app must stay open until “Payjoin completed,” or the trade falls back to a regular on-chain send.
What this means for Bitcoin
Most exchanges still settle on-chain trades as ordinary sends, leaving a clean map of who bought what and when. Default collaborative transactions make those maps less reliable with every trade. If the pattern spreads, common-input heuristics get noisier for everyone, including people who never use it. Growth and network privacy can point in the same direction.
The important boundary is layer. Payjoin protects against blockchain observers. It does not hide the trade from Bull Bitcoin, the counterparty that knows the customer, the fiat amount, and the Bitcoin that moved. Identity verification still leaves a record with the provider. Payjoin weakens public analysis of the on-chain shape of a trade; it does not make Bitcoin anonymous.
On fees, the practical win is local. Merging a purchase into an existing UTXO can mean fewer coins to manage later, and potentially lower mining fees when those coins are spent. That is future savings for the wallet, not a guarantee that today’s trade costs less.
Paying bills from Bitcoin, without a crypto card
Separate from this week’s announcement, Bull Bitcoin already lets customers sell Bitcoin into local bank rails and pay third-party recipients through “Pay Anyone.” The recipient gets fiat. The landlord or utility does not need to accept Bitcoin. Crypto debit cards also convert to fiat before the final payment. A bank payout can settle ordinary obligations without a card network or merchant Bitcoin acceptance, while the user keeps Bitcoin until conversion. For people who hold sats and still pay rent, utilities, or remittances, that helps make self-custody livable.
Per Bull Bitcoin’s rates page and payments blog:
Canada: CAD Interac e-transfer, bill payment, and wire.
European Union: EUR SEPA and SEPA Instant, subject to EU residency rules in the company’s European terms.
Costa Rica: SINPE Móvil, plus Costa Rica IBAN / bank transfer in CRC or USD.
Mexico: SPEI in MXN.
How far that reaches depends on whether the recipient and rail are supported. Identity-verification requirements depend on jurisdiction and service. For EU bank services, the company’s European terms require KYC before use. There is no blanket anonymous path to bank payouts.
Bull Bitcoin quotes an all-inclusive rate that embeds its spread; the quote shown at confirmation is what applies, and it varies. Converting Bitcoin to fiat for a bank credit can have tax consequences under local law.
Bottom line
Payjoin Trading puts a long-standing Bitcoin privacy technique into daily exchange use, by default when the prerequisites are met. That helps individual wallet hygiene and makes public chain analysis less reliable. The bank-payout rails are not the new announcement, but they matter alongside it: privacy-by-default on the way in, and a practical way to meet fiat obligations on the way out, without waiting for every merchant to accept Bitcoin. Self-custody stays relevant either way. Holders can keep their keys, consolidate as they trade, and still pay the bills the world actually sends them.