Total group like-for-likes fell 1% in the period to 8 November. They dipped 3% in the previous financial year from £1.19bn to £1.16bn.
Total high street sales fell 5% and like-for-likes dipped 4%, dragging down group sales.
The company said gross margin had increased in line with its plan, and cost-saving initiatives were on track.
WH Smith has bought 600,000 shares and returned £6.1m to shareholders as part of previously announced intention to return up to £50m of cash to shareholders via a rolling share buyback programme. “We remain focused on profitable growth, cash generation and investment in new opportunities” the trading update said.