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Cross-border tax & residency

ATLAS

Cross-border taxes, computed - before the stakes get high.

RoadmapOn the roadmap

ATLAS helps newcomers and their accountants make sense of cross-border tax and residency. Individuals get plain-language checklists, calculators, and scenarios; accountants get client profiles, workpapers, and scenario comparisons - with treaty, DTAA, and T1135 logic computed deterministically.

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Rule logicTreaty / DTAA / T1135Verified input
Runtime costNear-zero per scenarioEfficient by design
Built forNewcomers + accountantsBuilt for real users

One brain, two surfaces

Who ATLAS is for

For newcomers

Understand your residency and reporting obligations in plain language - and what each choice could mean before you commit.

  • Residency and tax-status checklists
  • Cross-border scenario calculators
  • Treaty relief and T1135 explainers
  • A clear handoff point to a licensed pro
For accountants

Standardize cross-border intake and scenario work - so your team spends time on judgment, not lookups.

  • Client profiles and workpapers
  • Side-by-side scenario comparisons
  • Treaty and residency rule references
  • Documentation ready for review
Why it's accurate

Computed, not guessed.

High-stakes tax is no place for a guessing AI. ATLAS maps intake answers into published treaty articles, residency tests, and reporting thresholds - explicit, traceable decision paths, not advice. It is a screening and documentation tool; a licensed professional makes the final call.

Built and operated by Shrish Manglik - Toronto, Canada

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