TS 12997

TS 12997 is a banking services standard that sets rules and terminology for the value date, meaning the date from which interest starts to run, in TL deposit and loan accounts and in foreign-currency deposit accounts. In banking operations, the start date for interest matters because the economic effect of a transaction may begin on a different day from the date the cash movement is recorded.

Value date and the start of interest

Value date is a core banking concept used to determine when a balance begins to generate or incur interest. In general technical terms, this helps distinguish between booking date, settlement date, and the date on which interest accrual actually begins. The standard covers the rules and definitions related to credit and debit interest start dates, providing a common basis for understanding how interest timing is handled in day-to-day banking practice.

Accounts and transaction types in scope

The scope includes Turkish lira deposit accounts, Turkish lira loan accounts, and foreign-currency deposit accounts opened in foreign currency. These account types differ in how balances are held and how interest is applied, especially where currency denomination and transaction timing influence the calculation basis. As a service standard, TS 12997 is intended to align terminology and timing principles across these common banking account structures.

• Rules for the date from which interest starts to accrue
• Separate treatment of credit and debit interest
• TL deposit accounts
• TL loan accounts
• Foreign-currency deposit accounts
• Related terms and definitions