“…Interest in the volatility dimension of corporate tax planning has accelerated in recent years (Drake et al., 2019; Delis, Hasan, & Karavitis, 2020; Guenther, Matsunaga, & Williams, 2017; Neuman, 2019). Providing evidence on the determinants of tax rate volatility is critical because recent studies find that firms with volatile tax rates face significant consequences, such as higher costs of capital (Saavedra, 2018), lower firm valuation (Jacob & Schütt, 2020), more information asymmetry (Bratten, Gleason, Larocque, & Mills, 2017), less value relevant after‐tax earnings and cash flows (Drake et al., 2019), and higher audit fees (Abernathy, Finley, Rapley, & Stekelberg, 2019). Despite the heated discussion about the association between non‐tax costs and volatile tax outcomes, little evidence is available about why some firms exhibit substantially more volatile tax rates than others (Wilde & Wilson, 2018).…”