Formal Harmonization, Persistent Accounting Uncertainty: Practitioner Evidence on Crypto-Asset Valuation After MiCA in Slovakia

The Markets in Crypto-Assets Regulation (MiCA) harmonizes market rules across the European Union, but it does not itself determine how entities should classify, measure, document, and tax crypto-asset transactions. This study examines whether Slovakia’s recent implementation measures have translated formal harmonization into operational accounting clarity. An anonymous online survey of 34 accounting, tax, finance, and business professionals recruited through purposive and convenience sampling was analyzed using counts, percentages, a descriptive cross-tabulation with Cramér’s V, and a documented but limited coding of two open-ended items. Because the sample is small and non-probability, all results are interpreted as indicative of the observed respondents rather than as population estimates. In the sample, 52.9% assessed the direction of legislative development positively, 72.7% of valid respondents considered current valuation rules inadequate, 60.6% reported that the reforms had not increased accounting clarity, and 60.6% perceived greater uncertainty. Tax obligations (50.0%) and record-keeping and documentation (35.3%) were selected more often than bookkeeping mechanics (14.7%). Practical experience co-varied with legislative monitoring in the realized sample (Cramér’s V = 0.62), although no population-inferential p -values or confidence intervals are reported. The pattern suggests a regulatory–operational clarity gap: legal taxonomy and market supervision have advanced faster than implementable valuation and documentation guidance. The proposed implementation framework combines survey indications with regulatory analysis, prior literature, and the authors’ professional judgment; it is a non-ranked proposal for consultation and further testing rather than a set of empirically validated policy priorities. Although derived from Slovakia, the framework is relevant to other EU jurisdictions translating MiCA’s common market rules into national accounting and tax practice.