polkat is a semi-automated routine for dealing with polarimetric radio data taken with the MeerKAT telescope. The polkat workflow is based on another widely used MeerKAT calibration package, oxkat (ascl:2009.003), but shifts its focus towards automating full polarisation calibration and snapshot (i.e., second-scale) imaging. Accepting raw visibilities in Measurement Set format, polkat performs the necessary data editing, calibration (reference and self-calibration), and imaging to extract the complete polarisation properties for user-defined target sources. Using Apptainer/Singularity, we containerize the required software packages, including, but not limited to, CASA (ascl:1107.013), WSClean (ascl:1408.023), and QuartiCal (ascl:2305.006). Moreover, polkat can be run locally or on high-performance computing that uses a slurm job scheduler; for the latter option, polkat will generate the necessary job submission files.