The dollar was firm on Thursday but was on track for a monthly decline versus a basket of major currencies as investors cautiously watch progress on U.S. tax reform.
The dollar index was stable on the day at 93.151, losing 1.5 percent for November.
The greenback inched up 0.1 percent versus the yen to 111.99, retreating from a 10-week trough of 110.85 yen scaled on Monday, though still sliding 1.5 percent for the month.
Sterling advanced 0.5 percent to $1.3471 after jumping as high as $1.3480, its top since Sept. 26. It was on course for a monthly rise of 1.4 percent.
The euro rose 0.2 percent to $1.1864, set to increase 1.9 percent for the month.