Official websites use .mass.gov
A .mass.gov website belongs to an official government organization in Massachusetts.
Secure websites use HTTPS certificate
A lock icon (
) or https:// means you’ve safely connected to the official website. Share sensitive information only on official, secure websites.
Top-requested sites to log in to services provided by the state
Log in links for this page
Find information on interest rates.
Here you can find current and past interest rates for security deposits and late payment charges by year for non-residential customers of investor owned utilities and municipal light plants.
The feedback will only be used for improving the website. If you need assistance, please contact the Department of Public Utilities. Please limit your input to 500 characters.
Thank you for your website feedback! We will use this information to improve this page.
If you need assistance, please contact the Department of Public Utilities.
If you would like to continue helping us improve Mass.gov, join our user panel to test new features for the site.