Belgium: Statbel fiscal income distribution 2023 (income classes, deciles, declaration types)

[MaxGhenis]

Statbel's Fiscale statistiek van de inkomsten, income year 2023 (IPCAL / SPF Finances administrative tax-return data): one fact per published cell, 14,600 facts (Belgium + the three regions), entity: return, provenance_class: administrative.

• A.1: declarations and amounts for all six components across the 101 published €1,000 income classes (+ the separately reported 523,770 zero-income declarations).
• B.1: deciles 01–10 with published upper bounds, taxable income, total tax (negative low-decile cells preserved), average rates; top-decile percentiles 091–100 as a separate record set so the two partitions cannot be mixed.
• B.3/B.4/B.5: declaration type × professional-income category / exact age category / dependants × decile.
• All eight NL workbooks hash-pinned as raw artifacts (R2 uploaded at the manifest keys); curator keeps workbook/worksheet/cell provenance and the exact XML numeric lexeme; no aggregates, reconciliation, aging, or targets — banding happens downstream.
• Publisher inconsistencies preserved, not reconciled: A.1 €274,707,991,587.37 vs B.1 €….39 vs the commune package sum €…​.82 — the test pins the €0.45 residual.

Purpose: the Microcosm-BE v0.5 distributional calibration surface (tax returns by income class and decile tax masses). Built by a sol lane; reviewed by fable.

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