Bank Account Types

Overview

Banks offer a range of account types tailored to different customer needs — from everyday transactional accounts to savings, lending, and investment products. Understanding account types is essential for payment routing, posting rules, and product configuration.

Core Account Types

1. Transaction / Current Account (Cheque Account)

The primary account for everyday banking — deposits, withdrawals, and payments.

Characteristics:
├── No restrictions on number of transactions
├── Debit card and internet banking access
├── Direct debit and credit authority
├── BSB + Account Number (AU) / IBAN (international)
├── Typically low or no interest
├── May have monthly fee (waived on minimum balance)
└── Used as: Debtor or Creditor account in payments

Payment types supported: All — NPP, BECS, RTGS, SWIFT, BPAY, Direct Debit

2. Savings Account

An account designed to accumulate funds with interest.

Characteristics:
├── Higher interest rate than transaction accounts
├── May have withdrawal limits (e.g., 6 per month)
├── Some restrict outbound payments (no direct debit allowed)
├── Linked to transaction account for transfers
├── Balance-dependent bonus interest tiers
└── Term conditions may apply (e.g., no withdrawals for bonus)

Important for payments: Some savings accounts cannot be the debtor account for outgoing payments or direct debits.

3. Term Deposit (Fixed Deposit)

Funds locked in for a fixed term at a fixed interest rate.

Characteristics:
├── Fixed term: 1 month to 5 years
├── Fixed interest rate agreed at opening
├── Cannot withdraw before maturity without penalty
├── Interest paid at maturity or periodically
├── Automatically rolls over (or matures) at end of term
└── Secure, APRA-guaranteed up to $250,000 (FCS)

Payment relevance: Cannot be used as source of funds for payments during the term.

4. Offset Account

A transaction account linked to a home loan where the balance offsets the loan principal for interest calculations.

Home Loan: $500,000
Offset Balance: $50,000
Interest calculated on: $450,000 (net)

Payments work normally — it's a transaction account with a loan linkage.

5. Overdraft / Line of Credit

An account that allows the balance to go below zero up to an approved limit.

Overdraft Limit: $10,000
Current Balance: -$3,000 (in use)
Available Funds: $7,000

Payment validation: Check available balance = Balance + Overdraft limit

Business Account Types

Account	Purpose
Business Transaction	Everyday business payments, payroll
Business Savings	Short-term cash reserves
Corporate Trust	Holds client funds (solicitors, real estate agents)
Operating Account	Main business account for expenses/receipts
Payroll Account	Dedicated account for salary payments
Foreign Currency	Holds balances in currencies other than AUD

Account Identifiers

Australian Accounts

Identifier	Format	Example	Used In
BSB	6 digits (XXX-XXX)	062-000	BECS, NPP
Account Number	6–10 digits (bank-specific)	12345678	BECS, NPP
PayID	Phone / Email / ABN / OrgID	0412345678	NPP only
BSB + Account	Combined	062-000 / 12345678	All domestic

International Accounts

Identifier	Format	Example	Used In
IBAN	Up to 34 alphanumeric	GB82WEST12345698765432	SEPA, SWIFT
BBAN	Country-specific	12345698765432	Domestic subset of IBAN
Account + BIC	Account + SWIFT code	123456 + ANZBAU3M	SWIFT

Account Status Values

Status	Meaning	Payment Impact
`ACTIVE`	Normal operating account	Accept debits and credits
`DORMANT`	No activity for defined period (e.g., 7 years)	May require reactivation; credits may be redirected to ASIC
`BLOCKED` / `FROZEN`	Restricted by bank (fraud, AML, legal)	No debits or credits allowed
`CLOSED`	Account terminated	Reject all payments; return inbound
`PENDING_CLOSE`	Closure in progress	Credits may still apply; debits rejected
`OVERDRAWN`	Balance below zero (no overdraft)	Payments may be rejected

Account Balance Types

A single account has multiple balance views:

LEDGER BALANCE          All posted entries (booked)
      │
      - HOLDS / RESERVED  Funds reserved for pending authorisations
      │
      = AVAILABLE BALANCE  What the customer can actually spend
      
CLEARED BALANCE         Subset of ledger that has cleared (no reversal risk)

VALUE-DATED BALANCE     Balance as of a specific value date (for interest)

@Entity
public class AccountBalance {
    private BigDecimal ledgerBalance;      // All booked entries
    private BigDecimal availableBalance;   // Ledger - holds
    private BigDecimal clearedBalance;     // Final, no-reversal-risk entries
    private BigDecimal uncleared;          // Pending (cheques, etc.)
    private BigDecimal holds;              // Reserved for authorisations
    private BigDecimal overdraftLimit;     // Approved overdraft
    
    public BigDecimal getEffectiveAvailable() {
        return availableBalance.add(overdraftLimit);
    }
    
    public boolean canPay(BigDecimal amount) {
        return getEffectiveAvailable().compareTo(amount) >= 0;
    }
}

Account Flags Relevant to Payments

Flag	Meaning	Payment Impact
`DEBIT_BLOCKED`	Account cannot be debited	Reject outbound payments
`CREDIT_BLOCKED`	Account cannot be credited	Return inbound payments
`DIRECT_DEBIT_ALLOWED`	Customer authorised direct debits	Required for pull payments
`INTERNATIONAL_PAYMENTS`	Allow cross-border payments	Block SWIFT if false
`HIGH_RISK_FLAG`	Enhanced monitoring	Additional fraud/AML checks
`DORMANCY_FLAG`	Account dormant (ASIC reporting required)	Special handling
`JOINT_ACCOUNT`	Multiple signatories	May require dual authorisation

Financial Claims Scheme (FCS) — APRA Guarantee

The Australian Government guarantees deposits up to AUD $250,000
per person per ADI under the Financial Claims Scheme (FCS).

Covers: Transaction accounts, savings accounts, term deposits
Does NOT cover: Investments, managed funds, superannuation

Relevant for: Risk assessment, product documentation

Account Types in ISO 20022

In pacs.008 / pain.001, account type is specified in CdtrAcct:

<CdtrAcct>
    <Id>
        <IBAN>GB82WEST12345698765432</IBAN>    <!-- International -->
        <!-- OR -->
        <Othr>
            <Id>123456789</Id>
            <SchmeNm>
                <Cd>BBAN</Cd>    <!-- Domestic -->
            </SchmeNm>
        </Othr>
    </Id>
    <Tp>
        <Cd>CACC</Cd>   <!-- Current Account -->
        <!-- SVGS = Savings, TRAD = Trade, NREX = Non-Resident External -->
    </Tp>
    <Ccy>AUD</Ccy>
</CdtrAcct>

Account Type Codes

Code	Account Type
`CACC`	Current Account
`SVGS`	Savings Account
`TRAD`	Trade Account
`NREX`	Non-Resident External Account
`LOAN`	Loan Account
`MGLD`	Marginal Lending

debtor.md — Account holder roles
inbound.md — Account lookup on credit
outbound.md — Balance check on debit
debit_post.md — How entries are posted to accounts
reconciliation.md — Balance reconciliation

Overview​

Core Account Types​

1. Transaction / Current Account (Cheque Account)​

2. Savings Account​

3. Term Deposit (Fixed Deposit)​

4. Offset Account​

5. Overdraft / Line of Credit​

Business Account Types​

Account Identifiers​

Australian Accounts​

International Accounts​

Account Status Values​

Account Balance Types​

Account Flags Relevant to Payments​

Financial Claims Scheme (FCS) — APRA Guarantee​

Account Types in ISO 20022​

Account Type Codes​

Related Concepts​