The fastest and easiest way to find answers to your questions is through our Online Support section. If you do not find the answer to your question here, we encourage you to call us for immediate assistance toll-free at 1-888-434-0055, Monday - Friday, 6 a.m. - 6 p.m. Pacific Time. Most customers find support via the phone is the fastest and most effective way to get an issue resolved, but if you cannot call you may email your question by entering in the question you are looking to answer into the text box below. We answer phone calls with the highest priority, so email questions may not receive a response for 1 to 2 business days (please allow a full 3 business days before contacting us again).

Email Support responds in 24 hours or less.

Telephone support is available Monday - Friday, 6 a.m. - 6 p.m. Pacific Time, and can be reached toll-free at 1-888-434-0055.

If you are interested in linking multiple Stamps.com accounts or a complete enterprise-level postage reporting solution, please click here for more information.

Would you like to make money by referring customers to Stamps.com? Sign up for our Affiliate network today by using the Affiliate Program Form.

If you would like to discuss a strategic alliance or marketing opportunity, please contact us by using our Strategic Alliances Form.

If you are interested in integrating Stamps.com features into your software, please click here for more information.

For investor relations information please contact us by using the Investor Relations Contact Form.

For inquiries related to public relations, or if you are with the press or media, please contact us by using the Public Relations Form.

For inquiries related to our website please use the Webmaster Form.

Stamps.com
12959 Coral Tree Place
Los Angeles, CA 90066-7020