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Landau-Khalatnikov-Fradkin transformations (LKFTs) yield the gauge dependenceof correlation functions within the class of linear covariant gauges. We derivethe LKFT for the quark propagator and explicitly evaluate it up to the two looplevel in the chiral limit. Although the number of diagrams to be evaluated issignificantly larger than with the conventional computational scheme, thediagrams are simpler in nature, thereby leading to a considerably fasterevaluation of the gauge dependent part than naively expected. Finally, we alsoresum the LKFT generated terms and compare our results with earlier work in theliterature.

Landau-Khalatnikov-Fradkin transformations for the two loop massless quark propagator