The company trades from around 620 B&M branded stores and 281 stores under the Heron Foods and B&M Express brands in Britain as well as the Jawoll chain in Germany and Babou brand in France.
B&M, a general goods retailer which sells everything from furniture to electricals to food, said on Thursday it made a pretax profit of 249.4 million pounds in the year to March 30, on revenue up 17.1% to 3.49 billion pounds.
In contrast to a host of UK retailers who are closing stores, due to rising costs and the shift to internet sales, the group opened a net 44 new B&M fascia stores during the year and plans at least a further 50 new openings in 2019-20. It said it was benefiting from plentiful availability of new store opportunities.
B&M said it had made a "pleasing" start to its new financial year with first quarter like-for-like sales up "mid-single digit" in B&M UK fascia stores.
"We just achieved our best ever Easter trading season, with healthy positive like-for-likes, but it would be prudent to expect more moderate like-for-like growth in the full year as a whole," said Chief Executive Simon Arora.
Shares in B&M, up 35% so far this year, were down 0.2% in early trading on Thursday, valuing the business at 3.82 billion pounds.
(Reporting by James Davey; editing by Kate Holton and Paul Sandle)