Sep <var data-var='date'>30</var>, <var data-var='time'>15:29</var> PDT Monitoring - To comply with USPS standards and avoid label errors or future USPS <a href="https://about.usps.com/postal-bulletin/2026/pb22700/html/updt_001.htm" target="_blank" rel="noopener noreferrer">non-compliance fees</a>, please be sure to enter all package dimensions (L x W x H) when creating your label.

USPS Dimension Requirements

Sep <var data-var='date'>22</var>, <var data-var='time'>17:46</var> PDT Resolved - Stamps.com Engineers have fixed the cubic rating issue and all systems are functioning normally. Thank you for your patience. Sep <var data-var='date'>21</var>, <var data-var='time'>13:27</var> PDT Investigating - We are aware of reports of inaccurate rates for some USPS mailing services through Stamps.com. Our engineering team is actively investigating, and we will post another update as soon as more information is available.

Issues With Cubic Rates for Some Users

Sep <var data-var='date'>22</var>, <var data-var='time'>16:09</var> PDT Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience. Sep <var data-var='date'>22</var>, <var data-var='time'>13:29</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to generate rates for Priority Mail and UPS services through our Windows Clients. The website is unaffected and should be used as a workaround for now. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Issues Generating Rates for Some Services Through Windows Clients

Sep <var data-var='date'>16</var>, <var data-var='time'>13:54</var> PDT Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience. Sep <var data-var='date'>16</var>, <var data-var='time'>09:34</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Issues Printing Postage

Jun <var data-var='date'>19</var>, <var data-var='time'>12:00</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'>19</var>, <var data-var='time'>08:35</var> PDT Investigating - We are aware of a problem that may impact some customers’ ability to use Stamps.com API. We are monitoring this issue and will provide an update when it is available. We apologize for the inconvenience.

Stamps API Technical Issue

Apr <var data-var='date'>21</var>, <var data-var='time'>10:00</var> PDT Resolved - Stamps.com Engineers have fixed the UPS postage rating and printing issues within the Windows client. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us. Apr <var data-var='date'>20</var>, <var data-var='time'>15:44</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to rate and print UPS shipping labels through our classic Windows client application. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Issues Rating and Printing UPS Postage

Apr <var data-var='date'>20</var>, <var data-var='time'>11:57</var> PDT Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience. Apr <var data-var='date'>20</var>, <var data-var='time'>11:46</var> PDT Investigating - We are aware of a problem that may impact some customers’ ability to use Stamps.com service. We are monitoring this issue and will provide an update when it is available. We apologize for the inconvenience.

Unexpected Technical Problem

Mar <var data-var='date'>26</var>, <var data-var='time'>13:31</var> PDT Resolved - This incident has been resolved. Mar <var data-var='date'>26</var>, <var data-var='time'>13:06</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Mar <var data-var='date'>17</var>, <var data-var='time'>07:26</var> PDT Resolved - Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience. Mar <var data-var='date'>17</var>, <var data-var='time'>06:57</var> PDT Investigating - We are aware of a problem that may impact some customers’ ability to use Stamps.com service. We are monitoring this issue and will provide an update when it is available. We apologize for the inconvenience.

Mar <var data-var='date'>11</var>, <var data-var='time'>13:24</var> PDT Resolved - This incident has been resolved. Mar <var data-var='date'>11</var>, <var data-var='time'>10:41</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Feb <var data-var='date'>13</var>, <var data-var='time'>08:42</var> PST Resolved - This incident has been resolved. Feb <var data-var='date'>13</var>, <var data-var='time'>07:39</var> PST Investigating - We are aware of a problem that may impact some customers’ ability to sign up for a new Stamps.com account. We are monitoring this issue and will provide an update when it is available. We apologize for the inconvenience.

Feb <var data-var='date'>11</var>, <var data-var='time'>14:17</var> PST Resolved - This incident has been resolved. Feb <var data-var='date'>11</var>, <var data-var='time'>14:02</var> PST Investigating - Our Engineers have identified an issue that may affect some of our customers' ability to reset passwords on their Stamps.com account. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Password Reset Issues

Jan <var data-var='date'>21</var>, <var data-var='time'>06:17</var> PST Resolved - This incident has been resolved. Jan <var data-var='date'>20</var>, <var data-var='time'>18:00</var> PST Update - Stamps.com Engineers are working towards implementing a fix. Jan <var data-var='date'>20</var>, <var data-var='time'>10:15</var> PST Update - Stamps.com Engineers are working towards implementing a fix. Jan <var data-var='date'>20</var>, <var data-var='time'>14:13</var> PST Monitoring - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to connect new store profiles or import orders within the Stamps Classic Software. Stamps.com Engineers have identified the issue and are working at implementing a fix. Jan <var data-var='date'>19</var>, <var data-var='time'>08:30</var> PST Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to connect new store profiles or import orders within the Stamps Classic Software. Stamps.com

Stamps Classic Order Page Auth Failure

Jan <var data-var='date'> 6</var>, <var data-var='time'>17:19</var> PST Resolved - Stamps.com Engineers have fixed the postage printing issue. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us. Jan <var data-var='date'> 6</var>, <var data-var='time'>16:51</var> PST Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Nov <var data-var='date'>10</var>, <var data-var='time'>14:08</var> PST Resolved - Stamps.com Engineers have resolved the log in issue. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us. Nov <var data-var='date'>10</var>, <var data-var='time'>12:37</var> PST Investigating - Our Engineers have identified an issue that may affect some of our customers' ability to login into their Stamps.com account through the Stamps.com Classic Windows Client application. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Login Issues

Nov <var data-var='date'> 6</var>, <var data-var='time'>10:12</var> PST Resolved - This incident has been resolved. Nov <var data-var='date'> 6</var>, <var data-var='time'>09:34</var> PST Investigating - We are aware of an issue impacting the ability to add a new payment method to your Stamps account. Our engineers are currently investigating and an update will be provided as soon as one is available.

Customers are currently unable to add new payment methods.

Oct <var data-var='date'>20</var>, <var data-var='time'>18:22</var> PDT Resolved - The earlier AWS-related service disruption has been resolved. Endicia software and API operations have returned to normal as of 15:53 PDT, according to AWS. We’ll continue to monitor for stability, but no further impact is expected. Oct <var data-var='date'>20</var>, <var data-var='time'>18:03</var> PDT Update - We are continuing to monitor for any further issues. Oct <var data-var='date'>20</var>, <var data-var='time'>18:00</var> PDT Update - We are continuing to monitor for any further issues. Oct <var data-var='date'>20</var>, <var data-var='time'>17:30</var> PDT Update - We are continuing to monitor for any further issues. Oct <var data-var='date'>20</var>, <var data-var='time'>17:00</var> PDT Update - We are continuing to monitor for any further issues. Oct <var data-var='date'>20</var>, <var data-var='time'>16:30</var> PDT Update - We are continuing to monitor for any further issues. Oct <var data-var='date'>20</var>, <var data-var='time'>16:00</var> PDT Monitoring - Stamps software may currently be experiencing some performance issues due to the ongoing AWS service issue. We are actively monitoring their status and its impact on our platform. We will provide updates as they become available. You can view the AWS Health Dashboard here: https://health.aws.amazon.com/health/status?path=service-history

Stamps/AWS Service Disruption

Oct <var data-var='date'>10</var>, <var data-var='time'>11:11</var> PDT Resolved - The issue impacting some customers’ ability to view transactions in their Printed Postage History Report, Refund Section, and SCAN Forms has been resolved. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us. Oct <var data-var='date'>10</var>, <var data-var='time'>10:35</var> PDT Update - We are continuing to investigate this issue. Oct <var data-var='date'>10</var>, <var data-var='time'>10:33</var> PDT Investigating - Stamps.com Engineers have identified an issue that may affect some of our customers' ability to login, as well as see transactions in their Printed Postage History Report, Refund Section, and SCAN Form. We are working to quickly resolve this issue and will provide an update when it's available.  We apologize for the inconvenience.

Transaction Print History Delays

Oct <var data-var='date'> 9</var>, <var data-var='time'>09:49</var> PDT Resolved - This incident has been resolved. Oct <var data-var='date'> 8</var>, <var data-var='time'>12:59</var> PDT Update - We are continuing to investigate this issue. Oct <var data-var='date'> 8</var>, <var data-var='time'>08:12</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. An error message of "Conversation-out-of-sync" intermittently appears when attempting to print. NOTE: Attempting to print again will allow you to continue printing, however, you may intermittently see the error message appear. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Oct <var data-var='date'> 8</var>, <var data-var='time'>08:07</var> PDT Resolved - This incident has been resolved. Oct <var data-var='date'> 7</var>, <var data-var='time'>18:11</var> PDT Investigating - Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. An error message of "Conversation-out-of-sync" intermittently appears when attempting to print. NOTE: Attempting to print again will allow you to continue printing, however, you may intermittently see the error message appear. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Sep <var data-var='date'>29</var>, <var data-var='time'>12:32</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'>29</var>, <var data-var='time'>10:17</var> PDT Investigating - Our Engineers have identified an issue that may affect some of our customers' ability to login into their Stamps.com account. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Sep <var data-var='date'>26</var>, <var data-var='time'>06:33</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'> 1</var>, <var data-var='time'>13:43</var> PDT Update - We are continuing to monitor for any further issues. May <var data-var='date'>15</var>, <var data-var='time'>16:00</var> PDT Monitoring - CUPW-represented employees to vote on Canada Post’s final offers between July 21 and August 1. Canada Post will keep customers informed about the results of the vote and remains committed to delivering reliable service as the trusted delivery partner. Learn more: https://www.canadapost-postescanada.ca/cpc/en/our-company/news-and-media/corporate-news/negotiations-list.page U.S. Carrier Update Effective Sunday, May 18, 2025, UPS will implement a Surge Fee for Air and Ground for UPS shipments as follows: UPS Standard® to Canada: $0.49 USD /pkg, All Other Services to Canada: $0.49 USD/per pound. If a Canada Post labour disruption does occur, the UPS Service Guarantee will be suspended for all services in Canada, and Same Day On-Call Pickup service for UPS Standard® will be suspended. Same Day On-Call Pickup will be available for all other services as well as for next or future-day requests.

Canadian Disruption Updates

Sep <var data-var='date'>24</var>, <var data-var='time'>08:41</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'>23</var>, <var data-var='time'>17:42</var> PDT Update - Stamps.com Engineers have resolved the login issues with the web and downloadable clients, however, the history page will be temporarily unavailable for a brief period. We are working to quickly restore this functionality and will provide an update when it's available.  We apologize for the inconvenience. Sep <var data-var='date'>23</var>, <var data-var='time'>11:16</var> PDT Investigating - Our Engineers have identified an issue that may affect some of our customers' ability to login into their Stamps.com account. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.

Sep <var data-var='date'> 2</var>, <var data-var='time'>09:45</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'>29</var>, <var data-var='time'>17:45</var> PDT Investigating - We are aware of a problem that may impact some customers’ ability to use the Stamps.com Rate Advisor service. We are monitoring this issue and will provide an update when it is available. We apologize for the inconvenience.

Aug <var data-var='date'>28</var>, <var data-var='time'>14:00</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'>28</var>, <var data-var='time'>12:00</var> PDT Investigating - Stamps.com Engineers have identified an issue that may affect some of our customers' ability to see transactions in the Stamps.com Classic History page. We are working to quickly resolve this issue and will provide an update when it's available.  We apologize for the inconvenience.

Is Status.Stamps.com down?

Status.Stamps.com status is UP

Lastest published events

USPS Dimension Requirements

Issues With Cubic Rates for Some Users

Issues Generating Rates for Some Services Through Windows Clients

Status.Stamps.com Services, Components and Regions

Recent Status.Stamps.com events

USPS Dimension Requirements

Issues With Cubic Rates for Some Users

Issues Generating Rates for Some Services Through Windows Clients

Issues Printing Postage

Stamps API Technical Issue

Issues Rating and Printing UPS Postage