Citigroup has today reported higher profit and revenue, driven by growth in its global consumer business and lower expenses. 

Citi, the most global of the US banks, said revenue in its consumer business rose 4% excluding the impact of currency fluctuations.

That outpaced the bank's division that caters to institutional clients where revenue grew 3%. 

Consumer business was padded by more US credit card customers beginning to pay interest as promotional periods wore off. North America branded card revenue jumped 11% in the quarter.

The bank said its trading revenue fell 1% as a decline in equities offset stable revenue in fixed-income trading.

Citi also reached a key efficiency target as it reported higher-than-expected earnings, driven by a lower tax rate.

The third-largest US bank by assets hit a return on tangible common equity (ROTCE) of 12.2%, above its goal of 12% it has promised investors for the year.

ROTCE is a widely watched measure of how well a bank uses shareholder money to generate profits. 

Citi has been focused on building credibility with investors after missing targets in recent years.

Estimates often hovered below the bank's stated goals, showing Wall Street analysts were skeptical the management could reach the targets it set. 

Citi said its net income applicable to the bank rose 6% to $4.9 billion, or $2.07 per share, in the third from $4.6 billion, or $1.73 per share, a year earlier.

Excluding the impact of a tax befit, the bank earned $1.97 per share. 

Revenue was up about 1% at $18.57 billion. 

Analysts were expecting a profit of $1.95 cents per share and revenue of $18.5 billion, according to IBES data from Refinitiv.