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Explainer: Lynx wire payments and the Payment Confirmation Reference Number

Learn more about Lynx, Canada’s high-value payment system.

Imagine you are sitting in a lawyer’s office waiting for the keys to your new home. For that door to unlock, thousands of dollars need to move from your bank account to the seller's lawyer's trust account, instantly and safely.

While most Canadians use other payment methods for smaller purchases, larger purchases (like buying a home) benefit from a payment system meant for moving “the big stuff,” like your mortgage down payment. That’s where Lynx wire transfers come in, processed by Lynx. In fact, a 2021 study of the Canadian real estate industry revealed that digital payment methods, such as Lynx wire payments, tend to be used for the final stages of the transaction.


What is Lynx?

Lynx is Canada’s high-value payment system, owned and operated by Payments Canada. It is an electronic wire system used by participating financial institutions to safely send wire payments on behalf of their customers in Canadian dollars.1 While Lynx is a domestic system, it plays a critical role in cross-border transactions as it is used for the Canadian leg of international wire transfers.


As a real-time gross settlement system, Lynx requires participating financial institutions to have sufficient liquidity to back every payment. While the system only sees a very small subset of transaction data, Lynx is essential for sending high-value, time-sensitive payments that are final and irrevocable as between Lynx participants. For end users, Lynx is used to send a variety of large-value payments. A payment could be for:

  • a down payment on a house;
  • wiring money to a relative; or
  • a large corporation paying an expense.

A system this important needs a robust legal framework to ensure the safety, soundness and efficiency of Lynx wire payments. This legal framework includes Payments Canada’s By-law No. 9 - Lynx (Lynx By-law) and the Lynx rules. The Lynx By-law sets out key rights and responsibilities of Lynx participants and Payments Canada, and the Lynx Rules include detailed operational requirements.

Curious about how Lynx supports Canada’s economy? Read the Bank of Canada's Lynx overview.


Who is a Lynx participant?

There are 16 Payments Canada members, including the Bank of Canada, that are Lynx participants. Lynx participants use the system to send payments to one another. These payments settle the debts they owe each other, which result from their own business and their customers' transactions.

There are also over 50 non-participant financial institutions that are not direct Lynx participants but have clearing relationships with Lynx participants for their Lynx wire payments. Under the Lynx legal framework, these non-participants that receive a payment via a Lynx participant are considered to be “payees.” A payee may be the end user, but it may also be a non-participant that then sends the funds onwards to its customer.


Payment Confirmation Reference Number (PCRN)

As defined in Lynx Rule 1, a PCRN is the unique alphanumeric confirmation number generated by Lynx to identify a Lynx wire payment that has been settled through Lynx. For a payee, the PCRN demonstrates the finality and irrevocability of a Lynx wire payment. If a wire payment has been settled in Lynx, the system will automatically assign a PCRN. 

It is important to be aware that only wire payments settled through Lynx will have a PCRN associated with the payment. Some wire transfers are not processed through Lynx and will not have a PCRN associated with the payment. For example, wire transfers between customers of the same financial institution are not processed through Lynx and therefore will not have a PCRN associated with them. 

As an end user, you may be entitled to the PCRN if:

  1. Your financial institution is a Lynx participant;
  2. You have specifically requested the PCRN from your financial institution; and
  3. Your financial institution has the PCRN.

Sometimes a financial institution may also assign a unique, institution-specific transaction reference number when crediting your account — the format of which is unique to that institution. This number is not the PCRN, so if you would like the PCRN, reach out to your financial institution for support.


Why Lynx wire payments may take more than a day to be processed

While Lynx provides time-sensitive payments that are typically made available on the same business day, some exceptions may cause additional processing time before the end user receives funds:

  • Lynx operating hours: If the wire payment is processed through Lynx, it is subject to specific business day operating hours. Any payment request submitted after the cut-off time that day, on a weekend or on a federal statutory holiday cannot be finalized until the next business day.
  • Financial institution cut-off times: While the Lynx system operates on set business hours, individual financial institutions often set their own internal cut-off times for processing Lynx wire payments. If a Lynx wire payment request is submitted after the financial institution's specific daily deadline, even if the Lynx system is still technically open, the transfer may be held and processed the following business day.
  • Intermediary financial institutions: If your financial institution is not a Lynx participant, there is an extra step before you receive your funds. Once your financial institution receives a Lynx wire, it may have its own payment processing procedures, such as checks for anti-money laundering compliance. This can introduce additional processing time before the funds are made available to you, the end-user.
  • Incomplete information: Proper formatting with complete routing information is critical to efficient payment processing. If this information is incomplete or missing, there may be delays in sending or receiving funds.

The next time you sign the closing papers on your new home, think of Lynx, Canada’s high-value payment system working behind the scenes, ensuring your money moves finally and irrevocably.


1 Not all wire payments are Lynx wire payments. A Lynx wire payment can only be sent between accounts held at two Lynx participants.

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