Accrued Interest Calculator

Calculate the interest that has accrued since the last coupon payment, and the dirty price (what you actually pay at settlement).

Annual coupon rate as printed on the bond
100 for G-Secs (price basis), 1000 for most NCDs
Market quoted price, excluding accrued interest
T+1 for G-Secs via RBI Retail Direct
Settlement must be before maturity.
Calculating…

What is accrued interest?

When you buy a bond between coupon payment dates, you owe the seller the interest that has accumulated since the last payment. This is accrued interest. The dirty price (what you actually pay) = clean price + accrued interest. On the next coupon date, you receive the full coupon — which includes the accrued interest you paid plus what you earned during your holding period.

For Indian G-Secs and most PSU bonds, the 30/360 convention applies per FIMMDA rules: each month is treated as 30 days, the year as 360. Most corporate NCDs use Actual/365.

Results are for informational purposes only. Verify against the bond’s offer document and your broker’s settlement confirmation. Not investment advice.