9th Sep 2025

Automated Sweeping: How to Unlock Idle Cash Across Banks

The volatile macroeconomic climate, shifting regulations, and fluctuating interest rates mean that treasurers must have complete oversight of corporate liquidity. With global growth slowing, businesses are more focused than ever on preserving working capital, de-risking cash holdings, and making idle balances work harder, all while ensuring daily operational needs are covered.

 

In this environment, treasury teams are measured on their ability to safeguard liquidity and optimise excess funds. One effective approach is sweeping, where idle cash is redeployed into high-interest accounts to generate interest income. Yet many treasurers still rely on manual processes for moving funds, which are time-consuming, error-prone, and a barrier to scaling treasury payments efficiently.

 

What is automated sweeping?

Sweeping is the movement of money between multiple accounts held by the same organisation. Traditional sweeps are often limited to accounts within one bank, which restricts corporates that manage liquidity across several banking relationships. The result: businesses miss opportunities to optimise idle balances across their full estate of accounts.

 

Modern cash management technology removes these barriers. For example, AccessPay’s automated sweeping solution allows treasurers to define sweep rules across banks. Criteria can include minimum or maximum sweep amounts, maintaining liquidity thresholds, or ensuring a specific account balance is preserved once funds move out. This makes sweeping cash across banks a proactive tool for corporate liquidity management.

Automated sweeping holds the key to cash optimisation

With automation in place, treasurers gain:

  • Higher yields on idle cash across banks.
  • Reduced reliance on costly short-term borrowing.
  • Stronger protection against transfer errors.
  • Automatic maintenance of liquidity thresholds.
  • Treasury teams freed from repetitive monitoring.
  • Faster responses to market or interest rate changes.
Crucially, automated sweeping turns excess balances into a reliable income stream. By leveraging better rates, corporates can achieve a measurable financial impact.

 

Automated sweeping in action

Consider a simple cash sweep payment scenario:
  • Evening Sweep: An operational account holds £5 million. A rule sweeps £1 million into a high-interest account, respecting the £4 million liquidity threshold. At 4% annualised interest, this generates £438 overnight.
  • Morning Sweep: The £1 million is swept back for operational use, while the £438 remains to compound.
  • Annual Impact: Over 12 months, the organisation could earn £28,000 in additional returns, all without extra borrowing or manual intervention.
This illustrates how a smart cash sweep model can deliver not only time savings but tangible growth in net new income.

 

Liquidity threshold maintenance through automated sweeping

Maintaining adequate liquidity across accounts is a constant challenge. Automated sweeps help treasurers uphold minimum thresholds to prevent failed payments or unnecessary fees. With defined rules, treasury teams no longer need emergency transfers or late-night portal logins.

 

Beyond efficiency, automated sweeping tools add extra security and control by reducing reliance on manual bank access, strengthening compliance and audit trails.

 

Debt management applications

Automated sweeping also plays a role in managing debt. Many bank loans carry covenants requiring minimum liquidity levels. Falling short can trigger investigations, penalties, or even foreclosure. With automated sweeps in place, treasurers can ensure covenant compliance seamlessly.

 

Furthermore, sweeping idle cash into debt accounts accelerates repayment and reduces interest costs, supporting stronger financial discipline.

 

Automated sweeping: the ultimate tool to locate and optimise idle cash

Many organisations lack visibility of where their idle cash is sitting, especially if they operate across multiple banks and accounts. Identifying surplus balances is the first step. Automating their redeployment through sweeping drives broader benefits:

  • Optimised returns on idle balances.
  • Better debt management.
  • Improved liquidity control.
  • Lower risk of costly emergency funding.
In short, automated sweeping protects continuity, strengthens financial stability, and delivers savings that would otherwise be missed.

 

Discover how AccessPay’s cash management technology can help your team unlock idle cash across banks and take corporate liquidity management to the next level.

 

FAQs on automated sweeping

What is automated sweeping in treasury management?

Automated sweeping (sometimes called an interbank cash sweep) is the automatic transfer of funds between accounts at different banks, triggered by predefined rules. It improves corporate liquidity management by optimising idle cash, reducing manual effort, and securing better returns.

 

How does sweeping cash optimise idle balances?

Surplus funds in operational accounts can be swept into higher-interest accounts or debt repayment accounts. This ensures idle balances generate income or reduce borrowing costs, instead of remaining unused.  Can automated sweeping reduce debt costs? Yes. Treasurers can establish sweep rules that move idle cash directly into debt accounts, paying down loans earlier and cutting interest expenses.

 

Is automated sweeping secure?

Sweeping via cash management technology reduces reliance on manual logins to bank portals, lowering the risk of fraud or error. AccessPay’s platform also provides audit trails and compliance controls for added security.

 

What types of organisations benefit most from automated sweeping?

Multi-banked corporates, or businesses with frequent idle balances and complex liquidity requirements, see the biggest gains from automated sweeping. It helps them unlock cash trapped across banks and drive financial efficiency

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