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The synthesis of tertiary alkyl fluorides through a formal radical deoxyfluorination process is described herein. This light-mediated, catalyst-free methodology is fast and broadly applicable allowing for the preparation of C-F bonds from (hetero)benzylic, propargylic, and non-activated tertiary alcohol derivatives. Preliminary mechanistic studies support that the key step of the reaction is the single-electron oxidation of cesium oxalates-which are readily available from the corresponding tertiary alcohols-with in situ generated TEDA 2+. (TEDA: N-(chloromethyl)triethylenediamine), a radical cation derived from Selectfluor®., (© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)