OpenChainGraph Suite · ART-455 · Pillar Two / GloBE

GloBE SBIE & Top-up Tax Calculator

Computes the OECD Pillar Two substance-based income exclusion (SBIE) for a jurisdiction from declared payroll costs and tangible-asset carrying value against a versioned transition-year rate table, derives excess profit against a declared GloBE income figure, the resulting top-up tax, and the final jurisdictional top-up after a QDMTT-paid offset. Downstream of the jurisdictional ETR calculation (ART-454) in the intended chain but runs standalone from direct inputs.

Substance-Based Income Exclusion Top-up Tax QDMTT Offset
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
⚠ The transition-year rate table below is an illustrative default, not an OECD-sourced feed — verify current OECD Annex rates at claim/use time before relying on this output. Election choices and GloBE-income adjustments are human judgment and belong upstream of this node.
Substance Inputs
Payroll costs (eligible employees)
Tangible asset carrying value
Target year
Transition-Year Rate Table (illustrative default — policy input)
YearPayroll rateTangible-asset rate
202410.0%8.0%
20259.6%7.4%
20269.2%6.8%
Jurisdictional Top-up Inputs
GloBE income (jurisdictional)
Top-up tax percentage (decimal)
QDMTT paid
Computation Detail
Execution Hash (SHA-256)

Ask your agent

Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

Run the AINumbers MCP tool `compute_globe_sbie_topup`. Task: Compute the OECD Pillar Two substance-based income exclusion (SBIE) for a jurisdiction from a caller-declared payroll-cost figure, tangible-asset carrying value, and a versioned transition-year rate table (payroll % + tangible-asset % looked up by target year, table supplied whole as a policy input -- not hardcoded).
Call it with arguments: {"policy_parameters":{"payroll_costs":10000000,"tangible_asset_carrying_value":20000000,"target_year":2025,"policy_rate_table":[{"year":2024,"payroll_rate":0.1,"tangible_asset_rate":0.08},{"year":2025,"payroll_rate":0.096,"tangible_asset_rate":0.074},{"year":2026,"payroll_rate":0.092,"tangible_asset_rate":0.068}],"globe_income":5000000,"top_up_tax_percentage":0.03,"qdmtt_paid":20000}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-455-globe-sbie-topup.html#p=v1.H4sIAAAAAAAA_wFtAZL-eyJwYXlyb2xsX2Nvc3RzIjoxMDAwMDAwMCwidGFuZ2libGVfYXNzZXRfY2FycnlpbmdfdmFsdWUiOjIwMDAwMDAwLCJ0YXJnZXRfeWVhciI6MjAyNSwicG9saWN5X3JhdGVfdGFibGUiOlt7InllYXIiOjIwMjQsInBheXJvbGxfcmF0ZSI6MC4xLCJ0YW5naWJsZV9hc3NldF9yYXRlIjowLjA4fSx7InllYXIiOjIwMjUsInBheXJvbGxfcmF0ZSI6MC4wOTYsInRhbmdpYmxlX2Fzc2V0X3JhdGUiOjAuMDc0fSx7InllYXIiOjIwMjYsInBheXJvbGxfcmF0ZSI6MC4wOTIsInRhbmdpYmxlX2Fzc2V0X3JhdGUiOjAuMDY4fV0sImdsb2JlX2luY29tZSI6NTAwMDAwMCwidG9wX3VwX3RheF9wZXJjZW50YWdlIjowLjAzLCJxZG10dF9wYWlkIjoyMDAwMH1lVWmcbQEAAA