I'm using Excel XP on a Win2k PC & I get the results you seek.

What version are you using?

"Onurali_k" wrote:

I applied the ACCRINT formula to a security with

maturity: 09 Feb 2010
issue: 09 Feb 2005 (adjusted to exclude coupons already paid)
first interest: 09 Feb 2005
settlement: 25 Mar 2005
coupon rate: 9.25%
frequency: 1
basis: 1 (ACT/ACT)

the formula should yield

9.25 x (25 Mar 2005 - 09 Feb 2005) / (09 Feb 2006 - 09 Feb 2005) =
9.25 x 44 / 365 = 1.1150685

but Excel calculates it as 1.112021858

upon exploration, I found out that it takes the day count of year as 366
mistakenly.

Is there a solution for this bug?