In comparison with the previous four singles from PCD, "I Don't Need a Man" was slightly less commercially successful. In the United Kingdom, the song debuted at number 21, with first-week digital sales of 5,448 units in the last week of September 2006. The following week, it sold 13,220 copies after its physical release and peaked at number seven, becoming the Pussycat Dolls' fifth consecutive top-ten single as PCD surpassed sales of one million copies in the country. The same week, the song reached the summit of the UK R&B Chart and number eight on the Scottish Singles Chart.
