"Santa Baby" entered several of the "Billboard" charts in the twenty-first century. In 2005, the song had its best week on the Digital Songs chart, reaching number 28 in the month of December. It returned to the chart in December 2007, when it re-entered in number 59. During the week of December 21, 2012, "Santa Baby" peaked at number 11 on "Billboard"s seasonal Holiday Digital Song Sales chart in the United States. In total, the single has spent 101 weeks ranking on the chart. It also reached the similar Holiday Streaming Songs chart where it peaked at number 6. On December 9, 2008, the mastertone recording of "Santa Baby" received a gold certification from the Recording Industry Association of America, denoting shipments of 500,000 copies or more. Sony BMG reported that "Santa Baby" is one of the holiday season's most popular ringtones, and that it in addition to six other holiday songs have sold an accumulated 2.3 million units in one year later. The "Billboard"-published Ringtones chart later listed Kitt's version of the song peaking at number 6 in December 2010. According to the German database "Statista", Kitt's version of "Santa Baby" has sold 620,000 copies in the United States as of 2014.