# Exact unsent Grok prompt — EM-FIN-07 Independent enterprise metamodel review. Do not browse, state current law or rates, invent identifiers or claim publication readiness. EM-FIN-07 covers TaxProfile, TaxObligation, TaxCalculation, TaxReturn and TaxFiling. Complete adjacent drafts cover WM-POL-011 Tax Obligation / Assessment, WM-ECO-032 Tax Return / Filing, WM-ACT-052 Tax Filing / Assessment Process, legal rules, jurisdiction, organization, legal registration and payment. Assess this proposal: reuse WM-POL-011 for obligation and authority assessment; reuse WM-ECO-032 for return revisions, filing attempts and acknowledgements; profile Tax Calculation as an owned assertion in a return or obligation; create one identifier-unassigned Tax Registration / Account root with separate residence, source/place and nexus basis assertions; demote WM-ACT-052 to a thin case-correlation profile. Allocate no identifier. Separate taxpayer, legal registration, tax registration/account, jurisdictional bases, legal rule, obligation, taxable event, period, calculation, return revision, filing attempt, acknowledgement, assessment, notice, balance, payment/allocation, dispute and process case. Decide whether the tax-registration candidate truly has independent identity and whether WM-ACT-052 adds anything beyond duplicate ownership. Pin law/rule/rate/form/schema/taxonomy/code-set versions to effective periods and knowledge time. Preserve immutable submitted revisions and attempts, append-only corrections, multiple concurrent jurisdictional grounds, and distinct declared/assessed/payable/paid/final states. Reject office address as an automatic source of every tax obligation. Test two jurisdictions and an amended return with distinct grounds, calculations, attempts, receipts and authority responses. Return <=900 words with: Verdict; strongest evidence; strongest counterexample; identity/mastership; registration/nexus; obligation/rules; calculation; return/filing; assessment/payment/dispute; multi-jurisdiction; time/version/provenance; privacy/governance; scenario; at least 10 invariants; minimum model set; blockers. Explicitly identify independent roots and duplicate boundaries.