Domestic
PAYMENTS SIGNAL · REFERENCE CARDA Brazil STR reserve transfer (BR RTGS)
A high-value real payment settles one-for-one across the banks' reserve accounts at the Banco Central do Brasil, in real time and with finality — no netting, no waiting for a cycle.
Actors
- Bank Alfa (sending bank)bank
- STR (Reserve Transfer System)infrastructure
- Banco Central do Brasilinfrastructure
- Nordbank (receiving bank)bank
Messages
No standard message — a book / internal transfer.
The sequence
| # | Step | Route | Kind |
|---|---|---|---|
| 1 | STR transfer — Bank Alfa submits the STR transfer | Bank Alfa → STR | message |
| 2 | Reserve check — STR checks Bank Alfa's reserve balance | STR → BCB | message |
| 3 | Gross settlement — The BCB settles the payment in central-bank reserves | Bank Alfa → Nordbank | settlement |
| 4 | Settlement confirmation — Nordbank is confirmed of the settled payment | STR → Nordbank | message |
| 5 | Book the funds — Nordbank books the funds | Nordbank | posting |
Exception rails
| Rail | Trigger | Where the money ends up | Next action |
|---|---|---|---|
| Not enough in the reserve account | Bank Alfa's reserve account at the Banco Central do Brasil does not hold BRL 3,000,000.00 at the moment the STR checks it. | The obligation is still owed; Nordbank is paid only once Bank Alfa funds its reserve account and the transfer settles. · Settlement waited on liquidity — the payment did not settle until the reserve account was covered. | Bank Alfa — Bank Alfa manages its intraday liquidity and uses the interbank market so high-value transfers do not stall before the STR closes for the day. |