Time Deposit Logic and Taxation
Time deposits map your cash to specific term commitments in exchange for guaranteed banking interest. However, standard quoted rates are annualized, which means calculating precise periodic returns requires formulaic precision.
Gross vs Net Returns
Advertised interest rates are predominantly Gross Rates. Under realistic banking flows, governments mandate taxation withheld at source (Withholding Tax).
Formula: Daily Deposit Interest
Gross = (Principal / 100) × (Rate / 365) × Term
Net = Gross - (Gross × Tax%)
The 365-Day Banking Rule
Modern banking systems rely exactly on a 365-day denominator (as opposed to legacy 360-day yields) to offer hyper-accurate daily returns for their clients.
Frequently Asked Questions
How is Deposit Interest calculated?
Gross interest is calculated as: (Principal / 100) × (Annual Rate / 365) × Term in Days. The legal withholding tax is deducted from this to find the Net Return.
What is the difference between Gross and Net Interest?
Gross interest is the raw income provided by the bank. A portion of this (Withholding Tax) is paid to the government. The amount you actually receive is the Net Interest Return.
What is Withholding Tax (Stopaj)?
It is an income tax deducted at the source. In Turkey, TRY deposit accounts are taxed at 7.5% for up to 6 months, 5% for up to 1 year, and 2.5% for over 1 year.
What should I consider when opening a deposit account?
Remember that rates are universally given annually. You should explore compounded rate offers or promotional short-term rates offered by banks to maximize your return.