5 calculators · free · no signup

Finance calculators for the cross-border desk.

Built for the questions Mercury and Bloomberg don't answer. All inline, all free, all without an account.

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Cross-Border Tax Estimator

US dividend → CA TFSA / RRSP withholding. W-8BEN modeling. §871(m) handling. Treaty-aware.

CRA · IRS · Treaty

FTS Tax Credit Calculator

Flow-through share tax credit for Canadian mining investors. Federal + provincial METC stacking.

CRA · Mining · TSX-V

Sharia Purification Calculator

Haram revenue percentage → dollar purification across AAOIFI / DJIM / MSCI / S&P standards.

4 standards · Halal-first

Wash Sale / Superficial Loss

US wash-sale + CA superficial-loss (ITA §54) windows tracked across both jurisdictions.

30-day · dual-resident

MJDS Spread Calculator

TSX vs NYSE/NASDAQ spread on dual-listed names, FX-adjusted, fee-aware.

Cross-listed · FX-adjusted
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More coming

Suggest a calculator we should build next. We ship on user demand.