Facebook today reported $1.59 billion in revenue for the fourth quarter of 2012 ended Dec. 31 — a 40 percent increase from the $1.13 billion reported in Q4 2011. Net income was $64 million down year-over-year from $302 million, but up from the net loss of $59 million in Q3 2012. Generally Accepted Accounting Principles (GAAP) earnings per share (EPS) for the fourth quarter was $0.03, compared to $0.14 for the same quarter in the prior year.

Revenue from advertising was $1.33 billion, representing 84 percent of total revenue and a 41 percent increase from the same quarter last year. Payments and other fees revenue for the fourth quarter was $256 million.

Monthly active users (MAUs) were 1.06 billion as of Dec. 31, 2012, an increase of 25 percent year-over-year. Daily active users (DAUs) were 618 million on average for December 2012, an increase of 28 percent year-over-year. Mobile MAUs were 680 million as of Dec. 30, 2012, an increase of 57 percent year-over-year.

Mobile revenue represented approximately 23 percent of advertising revenue for the fourth quarter of 2012, up from approximately 14 percent of advertising revenue in the third quarter of 2012.

Although ad revenues have been increasing significantly, particularly on mobile, the growth of Facebook’s payments business has been stagnant. Adjusting for $66 million of additional revenue in the month of December because of accounting reasons, Payments and other fees revenue remained flat year-over-year.