{
  "tool_id": "art-365-compute-globe-topup-tax",
  "note": "golden_hash filled by golden-parity.test.mjs --update. ART365-GLOBE-FIX-1 (2026-08-16) rewrote vectors 2-5 and the note text of vectors 1/6 to correct four divergences from the pinned OECD Side-by-Side Package (Ch5) independently CONFIRMED by ART365-DIVERGENCE-CONFIRM-1: (1) SbS Safe Harbour deems Top-up Tax zero for BOTH IIR and UTPR, not routed to UTPR; (2) eligibility runs on a declared Central Record listing, never a hardcoded parentHq===US; (3) requires a declared Filing CE election; (4) does not apply before fiscal years commencing 1 January 2026.",
  "vectors": [
    {
      "name": "de_parent_iir_allocation",
      "description": "DE/IE/SG at fy2026, parent_hq DE with no Central Record listing and no election declared: SbS Safe Harbour does not apply. DE ETR 14% -> top_up 4.662, fully absorbed by QDMTT. IE ETR 10% -> top_up 9.374, fully absorbed by QDMTT. SG ETR 12% -> top_up 4.1508, no QDMTT enacted, so full residual routes to IIR.",
      "policy_parameters": {
        "parent_hq": "DE",
        "fy": 2026,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "DE",
        "fy": 2026,
        "us_exempt": false,
        "central_record_sbs": [],
        "sbs_election": false,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "sbie": 33.8,
            "income_net_sbie": 466.2,
            "etr": 0.14,
            "below_min_etr": true,
            "top_up_rate": 0.01,
            "top_up_amount": 4.662,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 4.662,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "sbie": 12.52,
            "income_net_sbie": 187.48,
            "etr": 0.1,
            "below_min_etr": true,
            "top_up_rate": 0.05,
            "top_up_amount": 9.374,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 9.374,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "sbie": 11.64,
            "income_net_sbie": 138.36,
            "etr": 0.12,
            "below_min_etr": true,
            "top_up_rate": 0.03,
            "top_up_amount": 4.1508,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 4.1508,
            "utpr_collected": 0
          }
        ],
        "total_income": 850,
        "total_taxes": 108,
        "aggregate_etr": 0.127059,
        "low_etr_count": 3,
        "total_top_up_tax": 18.1868,
        "total_qdmtt_collected": 14.036,
        "total_iir_collected": 4.1508,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "6fe94365311575cc1063107bcfd6f895d1186ebe8d223ec932f5e069a906c97b"
    },
    {
      "name": "sbs_eligible_parent_zero_topup",
      "description": "ART365-GLOBE-FIX-1 (2026-08-16), replaces us_parent_utpr_allocation: SAME DE/IE/SG jurisdictions, parent_hq US, ON the Central Record for a Qualified SbS Regime, Filing CE election made, fy2026 (on/after the para-28 effective date). Ch5 box item 1 + para 8 deem the jurisdiction Top-up Tax ZERO for BOTH the IIR and the UTPR -- the OLD vector expected utpr_collected 4.1508 (residual re-routed to UTPR), CONFIRMED WRONG by ART365-DIVERGENCE-CONFIRM-1 claim 1; corrected expectation is iir_collected 0 AND utpr_collected 0 on every row. QDMTT collection (14.036 total) is unaffected.",
      "policy_parameters": {
        "parent_hq": "US",
        "fy": 2026,
        "central_record_sbs": [
          "US"
        ],
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "US",
        "fy": 2026,
        "us_exempt": true,
        "central_record_sbs": [
          "US"
        ],
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "sbie": 33.8,
            "income_net_sbie": 466.2,
            "etr": 0.14,
            "below_min_etr": true,
            "top_up_rate": 0.01,
            "top_up_amount": 4.662,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 4.662,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "sbie": 12.52,
            "income_net_sbie": 187.48,
            "etr": 0.1,
            "below_min_etr": true,
            "top_up_rate": 0.05,
            "top_up_amount": 9.374,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 9.374,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "sbie": 11.64,
            "income_net_sbie": 138.36,
            "etr": 0.12,
            "below_min_etr": true,
            "top_up_rate": 0.03,
            "top_up_amount": 4.1508,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 0,
            "utpr_collected": 0
          }
        ],
        "total_income": 850,
        "total_taxes": 108,
        "aggregate_etr": 0.127059,
        "low_etr_count": 3,
        "total_top_up_tax": 18.1868,
        "total_qdmtt_collected": 14.036,
        "total_iir_collected": 0,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "875ba1f4df84b263da2e8ce5afd99cca5f4ccb46de0d57b5cc1dd5274b07b145"
    },
    {
      "name": "sbs_listed_no_election_not_exempt",
      "description": "NEW (ART365-GLOBE-FIX-1): parent_hq US IS on the Central Record and fy2026 is effective, but sbs_election is NOT declared true (defaults false). Ch5 box item 1 / para 7: the safe harbour operates only at the election of the Filing CE -- absent an explicit election it does not apply, so SG residual (4.1508) falls back to ordinary IIR routing. Exercises fix 3.",
      "policy_parameters": {
        "parent_hq": "US",
        "fy": 2026,
        "central_record_sbs": [
          "US"
        ],
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "US",
        "fy": 2026,
        "us_exempt": false,
        "central_record_sbs": [
          "US"
        ],
        "sbs_election": false,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "sbie": 33.8,
            "income_net_sbie": 466.2,
            "etr": 0.14,
            "below_min_etr": true,
            "top_up_rate": 0.01,
            "top_up_amount": 4.662,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 4.662,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "sbie": 12.52,
            "income_net_sbie": 187.48,
            "etr": 0.1,
            "below_min_etr": true,
            "top_up_rate": 0.05,
            "top_up_amount": 9.374,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 9.374,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "sbie": 11.64,
            "income_net_sbie": 138.36,
            "etr": 0.12,
            "below_min_etr": true,
            "top_up_rate": 0.03,
            "top_up_amount": 4.1508,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 4.1508,
            "utpr_collected": 0
          }
        ],
        "total_income": 850,
        "total_taxes": 108,
        "aggregate_etr": 0.127059,
        "low_etr_count": 3,
        "total_top_up_tax": 18.1868,
        "total_qdmtt_collected": 14.036,
        "total_iir_collected": 4.1508,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "2ebb3f170933392bc96aa85337ab1b58256777bcf3632cd6ac61bf94607dd950"
    },
    {
      "name": "sbs_election_without_central_record_listing",
      "description": "NEW (ART365-GLOBE-FIX-1): parent_hq US has sbs_election true and fy2026 is effective, but central_record_sbs is empty -- US is NOT declared on the Central Record. Ch5 box item 6: eligibility runs on a Central Record listing of a Qualified SbS Regime, never a hardcoded jurisdiction (the publication names none across 88 pages) -- an election alone does not create eligibility, so ordinary IIR routing applies. Exercises fix 2 (the old kernel hardcoded parentHq===US and would have granted the exemption here).",
      "policy_parameters": {
        "parent_hq": "US",
        "fy": 2026,
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "US",
        "fy": 2026,
        "us_exempt": false,
        "central_record_sbs": [],
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "sbie": 33.8,
            "income_net_sbie": 466.2,
            "etr": 0.14,
            "below_min_etr": true,
            "top_up_rate": 0.01,
            "top_up_amount": 4.662,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 4.662,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "sbie": 12.52,
            "income_net_sbie": 187.48,
            "etr": 0.1,
            "below_min_etr": true,
            "top_up_rate": 0.05,
            "top_up_amount": 9.374,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 9.374,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "sbie": 11.64,
            "income_net_sbie": 138.36,
            "etr": 0.12,
            "below_min_etr": true,
            "top_up_rate": 0.03,
            "top_up_amount": 4.1508,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 4.1508,
            "utpr_collected": 0
          }
        ],
        "total_income": 850,
        "total_taxes": 108,
        "aggregate_etr": 0.127059,
        "low_etr_count": 3,
        "total_top_up_tax": 18.1868,
        "total_qdmtt_collected": 14.036,
        "total_iir_collected": 4.1508,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "b092b13e70b311022870ab01cf00222a2c2d6446a0546fa819ad450ab3167e9d"
    },
    {
      "name": "sbs_listed_elected_pre_2026_not_exempt",
      "description": "NEW (ART365-GLOBE-FIX-1): parent_hq US is on the Central Record with sbs_election true, but fy2024 -- before the para-28 effective date (fiscal years commencing on or after 1 January 2026). The safe harbour does not affect pre-effective fiscal years, so ordinary IIR routing applies despite listing+election. Exercises fix 4 (the old kernel had no fy gate and returned us_exempt:true for fy2024).",
      "policy_parameters": {
        "parent_hq": "US",
        "fy": 2024,
        "central_record_sbs": [
          "US"
        ],
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "US",
        "fy": 2024,
        "us_exempt": false,
        "central_record_sbs": [
          "US"
        ],
        "sbs_election": true,
        "jurisdictions": [
          {
            "jur": "DE",
            "income": 500,
            "taxes": 70,
            "payroll": 200,
            "assets": 300,
            "sbie_payroll_rate": 0.094,
            "sbie": 33.8,
            "income_net_sbie": 466.2,
            "etr": 0.14,
            "below_min_etr": true,
            "top_up_rate": 0.01,
            "top_up_amount": 4.662,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 4.662,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "IE",
            "income": 200,
            "taxes": 20,
            "payroll": 80,
            "assets": 100,
            "sbie_payroll_rate": 0.094,
            "sbie": 12.52,
            "income_net_sbie": 187.48,
            "etr": 0.1,
            "below_min_etr": true,
            "top_up_rate": 0.05,
            "top_up_amount": 9.374,
            "qdmtt_enacted": true,
            "qdmtt_rate": 0.15,
            "qdmtt_collected": 9.374,
            "iir_collected": 0,
            "utpr_collected": 0
          },
          {
            "jur": "SG",
            "income": 150,
            "taxes": 18,
            "payroll": 60,
            "assets": 120,
            "sbie_payroll_rate": 0.094,
            "sbie": 11.64,
            "income_net_sbie": 138.36,
            "etr": 0.12,
            "below_min_etr": true,
            "top_up_rate": 0.03,
            "top_up_amount": 4.1508,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 4.1508,
            "utpr_collected": 0
          }
        ],
        "total_income": 850,
        "total_taxes": 108,
        "aggregate_etr": 0.127059,
        "low_etr_count": 3,
        "total_top_up_tax": 18.1868,
        "total_qdmtt_collected": 14.036,
        "total_iir_collected": 4.1508,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "5e2949605a0503927ed7efa4f0c943c891c216e6705ed350057a979fc98fe234"
    },
    {
      "name": "zero_income_edge",
      "description": "Single jurisdiction with zero GloBE income -- ETR falls back to 0, below_min_etr true by definition, income_net_sbie and top_up_amount both resolve to 0. UPDATED (ART365-GLOBE-FIX-1): parent_hq US with no declared Central Record listing or election is no longer automatically us_exempt:true (old hardcoded-US behaviour); result is unchanged (all zero) because there is no income to allocate either way.",
      "policy_parameters": {
        "parent_hq": "US",
        "fy": 2026,
        "jurisdictions": [
          {
            "jur": "JP",
            "income": 0,
            "taxes": 0,
            "payroll": 0,
            "assets": 0
          }
        ]
      },
      "output_payload": {
        "parent_hq": "US",
        "fy": 2026,
        "us_exempt": false,
        "central_record_sbs": [],
        "sbs_election": false,
        "jurisdictions": [
          {
            "jur": "JP",
            "income": 0,
            "taxes": 0,
            "payroll": 0,
            "assets": 0,
            "sbie_payroll_rate": 0.094,
            "sbie": 0,
            "income_net_sbie": 0,
            "etr": 0,
            "below_min_etr": true,
            "top_up_rate": 0.15,
            "top_up_amount": 0,
            "qdmtt_enacted": false,
            "qdmtt_rate": 0,
            "qdmtt_collected": 0,
            "iir_collected": 0,
            "utpr_collected": 0
          }
        ],
        "total_income": 0,
        "total_taxes": 0,
        "aggregate_etr": 0,
        "low_etr_count": 1,
        "total_top_up_tax": 0,
        "total_qdmtt_collected": 0,
        "total_iir_collected": 0,
        "total_utpr_collected": 0,
        "constants_version": "oecd-globe-sbie-2024-2027-transitional-v1",
        "globe_min_rate": 0.15,
        "regulatory_basis": "OECD Pillar Two GloBE Model Rules (Dec 2021) + GloBE Commentary (Mar 2022) + Administrative Guidance (2023-2024) + OECD/G20 Inclusive Framework Side-by-Side Package (approved/declassified 5 January 2026) Ch5 SbS Safe Harbour",
        "note": "SBIE payroll rate defaults to the OECD transitional table for fy when not supplied; the tangible-assets SBIE rate is held at the published steady-state 5% regardless of fy, matching the source tools. Jurisdiction-level qdmtt_rate/qdmtt_enacted are caller-supplied, not vendored. The SbS Safe Harbour (us_exempt, keeping the legacy field name) requires all three of a declared Central Record listing (central_record_sbs), a declared Filing CE election (sbs_election), and a fiscal year on or after 2026 -- it is never inferred from parent_hq alone, and when it applies the Top-up Tax for that jurisdiction is deemed zero for both the IIR and the UTPR, not routed between them."
      },
      "compliance_flags": [
        "GLOBE_ZERO_INCOME_JURISDICTION:JP",
        "GLOBE_TOPUP_DUE"
      ],
      "golden_hash": "5d44c3ae716a0039993701c3cd6559282d773c681f6a5f5600a670df1710ee9b"
    }
  ]
}
