Why companies use multiple banks
Common reasons include deposit-insurance planning, lender relationships, regional branch coverage, acquisition history, specialized treasury products and operational resilience.
Concentration methods
| Method | Best use |
|---|---|
| Scheduled ACH | Routine low-cost transfers |
| Wire transfer | High-value or time-sensitive concentration |
| Bank sweep | Automated within supported relationships |
| TMS/aggregator | Central visibility and instructions across banks |
Set minimum operating balances
Do not drain every account to zero unless the structure is intentionally designed that way. Maintain enough liquidity for local payroll, checks, card settlement and unexpected debits.
Watch cutoff and holiday mismatches
Two banks can have different customer cutoffs even when both ultimately use the same payment network. International or regional accounts add holiday and time-zone complexity.
Measure concentration economics
Compare transaction fees and staff effort with the interest saved on debt or yield gained by centralizing excess balances. The most elaborate structure is not automatically the most economical.
Primary sources and reference material
Design treasury around controls and exceptions, not only speed.
The strongest treasury setup combines the right payment rail with role separation, verification, reconciliation and enough visibility to catch unusual activity before it becomes a loss.