MEMORANDUM
To: Chief Fiscal Officers
From: Martin J. Benison, Comptroller
Date: January 10, 2012
Re: Late Penalty Interest Rate
Comptroller Memo FY#2012-17
Executive Summary
The purpose of this memo is to advise departments as to the late penalty interest rate for January 1, 2012 – June 30, 2012.
The late penalty interest rate effective for January 1, 2012 – June 30, 2012 is 0.75%. This rate is applicable to invoices which are not paid on time in accordance with the Comptroller Regulations and 815 CMR 4.00. Interest for late payments is available to all vendors of the Commonwealth. Interest on late payments is not available to employees, contract employees, recipients of public assistance, cities and towns and other public instrumentalities designated as public agencies on the Commonwealth's vendor file.
See attached table for
history of rates and instructions for late penalty interest calculations 
. And Federal Reserve Discount Window for current interest rates.
cc:
MMARS Liaisons
Payroll Directors
General Counsels