For applications of MgB2 wires or tapes, high critical currents in high magnetic fields are essential. By using tapes insuperconducting coils the anisotropic behaviour of the critical current, i.e. the dependenceon the direction of the external field in relation to the tape surface, has to be taken intoaccount.The anisotropy of MgB2 tapes with mechanically alloyed (MA) precursor powder and different sheath materials which canbe much higher than the intrinsic anisotropy is discussed. Furthermore tapes with pure and C dopedMA-MgB2 precursor are compared. Tapes with a hard Fe-sheath and undopedprecursor show a high extrinsic anisotropy of the critical current densitywhich can be reduced considerably by carbon doping. A texture of theMgB2 phase in the tape filaments introduced by flat rolling was observed by synchrotronx-ray diffraction. Using this texture information the observed macroscopicIc-anisotropy of the tapes can be explained by calculations based on the percolation model.