I will now turn the call over to Mr. Richard Carrión.
Good morning and thank you all for joining the call. Please turn to the second slide. For the second quarter, we reported net income of $66 million, compared with the profit of $48 million in first quarter, our sixth consecutive profitable quarter.
We remain on track in executing our strategy by improving credit, building our asset portfolios to maintain our strong revenues, optimizing operating expenses, and continuing improvements on our U.S. operations. Our revenue generating capacity was clearly displayed in the second quarter with a net interest margin of 4.33% that stands well above our peer average and gross revenues amounting to $435 million.
A major takeaway from the results of the second quarter is that credit metrics continued to improve. Excluding bulk sales, the quarterly decline of $120 million in non-performing loans is our largest quarterly decrease in this credit cycle, while charge-offs reached their lowest level since 2008. The decrease in NPLs was experienced across the board in both Puerto Rico and the U.S. mainland and NPLs inflows fell to their lowest level in four years. We continued to add high quality portfolios to our asset base by completing purchases of $273 million in U.S. mortgages and $225 million in Puerto Rico consumer loans. The pipeline of foreign portfolio opportunities remains active.
We continued to generate internal capital and boost liquidity. Higher cash flows from our covered portfolio are expected to boost our original net revenue assumptions for the entire life of their portfolio while in the second quarter we received the cash dividend of $131 million from EVERTEC, of which we own approximately 4.09%.
Our tangible common equity and Tier 1 common ratios are strong at 9.09% and 12.29% respectively. The economic situation in our markets have stabilized as evidenced by recent economic indicators and our credit trends, but we are still seeing weak loan demand both in Puerto Rico and the U.S. mainland. Combination of this weak loan demand, higher cost related to collection efforts, and the current negative accretion of the covered portfolio, which I will cover later are the three main challenges that we face as we move ahead.