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Annual Percentage Yield Calculation Program for Windows (APYWIN)
The Windows-based version of the Annual Percentage Yield program (APYWIN v2.1 - Release May 2009) is an efficient tool for verifying annual percentage yields pursuant to the Truth in Savings Act (12 U.S.C. 4301 et seq.) and its implementing regulation (Regulation DD, 12 CFR 230).
The APYWIN 2.1 program is only available for download.
For questions about the APYWIN application, please provide a detailed description of the issue, your operating system, your name and a contact number via e-mail to APYAssistance@occ.treas.gov.
You can also provide comments and feedback to the address below:
Office of the Comptroller of the Currency
Although great care has been taken in the preparation of this APY program, the OCC makes no warranty of complete accuracy. Further, the OCC does not recommend this program over other methods to calculate annual percentage yields.
The APYWIN 2.1 installation will automatically uninstall any earlier version of the APY program from your computer. If you have APY v1.0 (DOS) and would like to keep this version, please follow the steps below before installing the new version.
Download the Program
To download APYWIN 2.1 to your machine, follow the instructions below. (Note: The file size is approximately 3MB.)
Please note that the APYWIN 2.1 application is not currently supported on Windows Vista.