Core banking & ledger

Banking accounting designed for traceability.

Know where the money came from, where it went and why.

Bastion's proprietary double-entry ledger provides the accounting foundation for accounts, payments, cards, fees, FX, settlements, loans and internal bank operations.

Illustrative accounting engine with balanced posting paths, account records and a reservation tray
  • Accounts
  • Balanced postings
  • Reconciliation
01

Double-entry by design

Every financial movement is represented through balanced accounting entries.

Transactions cannot simply disappear or be silently rewritten. Corrections are performed through compensating transactions, preserving the original immutable financial history.

02

One currency per posting

Each balanced accounting transaction operates within one currency.

FX is represented through separate balanced movements rather than mixing currencies inside one posting. This simplifies reconciliation, financial statements and investigation of discrepancies.

03

Pending and completed money

The platform keeps spendable funds, posted money and in-flight movements distinct throughout the transaction lifecycle.

  • Available balance
  • Ledger balance
  • Pending incoming funds
  • Reserved outgoing funds
  • Completed movements
  • Reversals
  • Rejected transactions
04

Reconciliation and reporting foundation

Transaction-level reconciliation connects customer account activity, ledger positions and individual external provider movements.

Aggregate balance reconciliation compares processor balances, bank balances and settlement accounts. Missing or inconsistent movements can be detected and investigated rather than becoming unexplained balance differences.

The same accounting model provides the foundation for financial and management reporting.

  • Customer account activity
  • Ledger positions
  • External provider transactions
  • Processor balances
  • Bank balances
  • Settlement accounts

Related capabilities

Keep the financial model connected

Payments & FX

Domestic and international payments, approval workflows, multi-currency accounts and configurable FX pricing.

Explore

Cards

Provider-neutral issuing and processing for physical and virtual consumer and business card programs.

Explore

Bank Operations & Reporting

Role-based operational interfaces, accounting, reconciliation, P&L and management reporting.

Explore

See the module in context

See how this capability works inside the complete Bastion platform.

We can demonstrate the running product and discuss how the module could fit your existing infrastructure.

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