Platform · Simulation Lab

Price the uncertainty
your spreadsheet hides.

50,000-iteration Monte Carlo for structures, treaties and Pillar Two.

Most cross-border decisions get modelled on a single base case. Simulation Lab lets you sweep the assumption space — rates, FX, audit outcomes, treaty renegotiation — and see the full distribution of ETR, cash tax and post-tax cash flow, with confidence intervals you can put on a board deck.

50,000
Max iterations / run
40+
Stochastic variables
< 8s
Engine latency
Unlimited
Scenarios per project

Capabilities

Built to replace the spreadsheet — not to be one.

Monte Carlo on tax variables

Treat rate changes, FX paths, assessment outcomes and treaty renegotiation as distributions — not point estimates. Get P10/P50/P90 outputs on every KPI.

Structure branching

Fork a base structure into alternative holding chains, debt-push-down variants or IP-migration paths. FiscalEyes simulates them in parallel and ranks them.

Probability-weighted ETR

A single headline ETR hides the tails. Simulation Lab produces probability-weighted effective tax rates with uncertainty bands regulators and CFOs respect.

Pillar Two overlay

Bolt Pillar Two top-up tax onto any scenario with one toggle. Stress-test qualifying domestic minimum taxes, undertaxed profits rule and safe harbours.

Audit-risk scoring

Each scenario is scored on authority-attention signals (PPT likelihood, substance gaps, thin cap) so you can balance efficiency against defensibility.

Board-ready outputs

Export charts, sensitivity tornadoes and narrative summaries to PDF, PowerPoint or an embed link — all with live links back to the model.

Workflow

From question to citation-grade answer in minutes.

01

Build the base case

Pull your structure from Globe Explorer or upload from Excel. FiscalEyes validates flows and flags gaps.

02

Add uncertainty

Convert assumptions into distributions — rate bands, FX paths, assessment probabilities — with pre-built templates.

03

Run and compare

Simulate, compare scenarios, and export the output that fits your audience: partner, CFO, auditor or regulator.

What's inside

Everything your team needs, out of the box.

  • Up to 50,000 iterations per run with deterministic seeds for reproducibility
  • Built-in distributions (normal, lognormal, triangular, empirical, custom)
  • Pillar Two top-up tax and QDMTT modelling out of the box
  • Correlation matrices across FX, rates and macro variables
  • Audit-risk scorecards per scenario with explanation trails
  • Sensitivity tornadoes and contribution analysis
  • Scenario versioning with diff views and reviewer sign-off
  • Export to PDF, PowerPoint, Excel and embeddable live links

Stop defending a single-point ETR.

Run your first 50k-iteration simulation on us — or book a modelling workshop with one of our tax engineers.

Start a free trialBook a demo