Over the years, industry, breeding programs and research initiatives have invested heavily in the phenotyping and genotyping of large numbers of animals across the various SNP platforms. Since sequencing is still relatively expensive and to make the most of the historical data already collected; a widely used strategy is to sequence key representative animals from a population and then use this information to impute the sequence of the others. In this paper, we describe the main steps currently used in the Korean Hanwoo cattle pipeline to impute 50k SNP data up to sequence level assisted by a set of reference animals which were sequenced using Illumina sequencing technology. PLINK, VCFtools, Eagle and Minimac3 are used for the imputation steps. Code and a small example dataset are provided to illustrate the process in practice. This simple roadmap can be used for phasing and imputation of livestock genomic datasets, adding additional value to the datasets already collected across the various platforms.