Why Cross-Border Payments Are Slow and Expensive

Anyone who's sent money internationally through a bank has probably noticed it takes longer and costs more than moving money domestically. The reason is structural, not incidental — it comes down to how the correspondent-banking system actually works.

The correspondent-banking chain

Most banks don't have a direct relationship with every bank in every other country. When yours doesn't have one with the recipient's bank, your payment routes through one or more intermediary ("correspondent") banks that do have relationships on both ends. Each hop in that chain:

• Adds processing time (often a full business day per hop).
• Takes its own fee or spread.
• Requires its own compliance checks, which can add delay unpredictably.

A payment that looks simple from the sender's side might cross three or four institutions before it reaches the recipient, and the sender usually can't see that chain or know in advance exactly how long it'll take.

Pre-funded accounts and idle capital

To offer faster international transfers without routing through a long chain, some institutions pre-fund local-currency accounts ("nostro accounts") in the countries they serve regularly. This speeds up the transfers that use those accounts, but it ties up capital that sits idle most of the time, and it only works for the specific corridors the institution has bothered to pre-fund — a smaller or newer payment corridor may not get this treatment at all.

Where currency liquidity fits in

Even setting aside the banking chain, currency conversion itself is a factor: two currencies without a deep, directly-traded market between them require either a longer conversion chain or wider spreads to compensate market makers for the risk of holding less-liquid currency pairs. Emerging-market and cross-regional currency pairs are more likely to fall into this category than a heavily-traded pair like USD/EUR.

How a bridge-currency approach targets this

A bridge-currency system — see our explanation of Ripple's On-Demand Liquidity — addresses two of these problems directly: it removes the need for pre-funded destination-currency accounts (liquidity is sourced on demand instead), and it replaces a potentially long correspondent chain with two fast conversions through a single liquid intermediate asset. It doesn't eliminate currency risk, and it isn't automatically cheaper or faster for every corridor — particularly ones that already have deep, direct, liquid markets — but for corridors that currently rely on a long correspondent chain or thin direct liquidity, it's a structurally different approach to the same problem.