RBS posted a large rise third quarter profit compared to the same period a year earlier, though profits slid compared to the second quarter.
Third-quarter pre-tax profit was £871m, more than triple the £255m posted a year earlier, but down on the £1.24b recorded in the second quarter.
Net attributable profit was £392m, swinging from a loss of £469m a year earlier.
Revenue slipped to £3.16b from £3.31b in the previous corresponding quarter.
The bank's net interest margin, a key measure of profitability, fell by 1 basis point to 2.12 compared with the second quarter.
RBS said it remained on track to achieve all of its 2017 financial targets.