Methodology
How the numbers are computed.
Ironlake shows its work. These pages document the assumptions, sources, and - just as important - the limitations behind each calculation, so you can judge the math for yourself.
- How the projection engine works
Ironlake's projection is deterministic first - three explicit scenarios from inputs you can see and change - plus an optional Monte Carlo stress view with its method disclosed.
- Tax-character and after-tax math
How Ironlake computes after-tax yield by tax character - every category, the federal/state/NIIT treatment of each, the sources, and the limitations.
- How all-in cost is computed
How Ironlake builds one annual all-in cost from advisor fee, fund expense ratios, trading cost, and tax drag - the tax-drag method and what it deliberately skips.
- How the Year-End Checklist is built
The Year-End Checklist is an orchestrator, not a calculator - a situational, severity-ordered list that links each item to the tool owning the precise math.