The invention relates to a multi-ratio transmission provided with eight forward gears and one reverse gear, comprising an input shaft (1), an output shaft (2), three planetary gear sets (P1, P2, P3), a first and a second spur gear stage (S1, S2) which are connected to a countershaft which is arranged parallel to the longitudinal axis of the planetary gear sets (P1, P2, P3) and which forms the output shaft (2) of the transmission, and at least five shift elements (03, 15, 56, 58, 59) and nine rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8, 9), wherein the input shaft (1) is connected to the planet carrier of the first planetary gear set (P1) and can be detachably connected by means of a first clutch (15) to the fifth shaft (5) which can be detachably connected by means of a third clutch (59) to the ninth shaft (9) which is connected to the sun gear of the third planetary gear set (P3) and which can be detachably connected by means of a second clutch (58) to the eighth shaft (8) which is connected to the ring gear of the second planetary gear set (P2).