Target issued a statement to CBS News thanking customers for their patience and employees for their quick response.
Concerned shoppers were reassured their details were not at risk during the time when staff counters and self-checkout registers were down.
Earlier on Saturday, Target tweeted that it was aware guests could not make purchases and apologized for the inconvenience.
Target registers are back up and running after going dark on Saturday.
At around 2 p.m., Target customers across the USA reported cash registers crashing on Instagram and other online outlets.
Trump's paper hints at deal to share burden on refugees with Mexico
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Some stores were reported to be handing out free snacks and beverages. "The glitch is causing delays at some checkouts, but it is not in any way related to a security issue".
Social media reports indicate Target stores may be suffering a significant technology outage this afternoon. Shoppers said employees across the country sprung into action - they handed out samples of mascara and shampoo in OH, fruit snacks in Missouri and strawberry chocolate chip Frappuccinos in Oklahoma.
"To my fellow target employees, stay strong in this dark time".
Many users addressed their fellow customers, asking Target visitors to be kind to the employees who were trying to control the situation.