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What withholding rates apply to royalty payments under their treaty, and are there any MLI changes that might affect how we structure this?"},{"title":"Dual residency individual tax residency","prompt":"I have a client who's resident in both Canada and the US for tax purposes. Which country gets to tax them under their tax treaty, and what's the process for resolving this dual residency situation?"},{"title":"Interest payment treaty optimization","prompt":"Our Australian parent company wants to make an interest payment to our Singapore financing subsidiary. What's the treaty withholding rate on that interest, and does the MLI impact the anti-avoidance rules we need to worry about?"}],"resultDescription":"Returns structured treaty analysis including applicable withholding rates by income type (dividends, interest, royalties, capital gains), residency tiebreaker rules for dual residents, MLI modifications affecting the treaty pair, anti-avoidance provisions, and practical scenario outcomes with references to specific treaty articles.","failureModes":["Treaty pair not found — no bilateral treaty exists between the specified countries","Invalid country code or unrecognized jurisdiction name","MLI data unavailable for specific treaty pair","Income type not recognized or not covered by treaty","Rate data may be stale if treaty has been recently amended or superseded"],"whenToPreferThis":"Use this endpoint when an agent needs precise, bilateral treaty-level tax data including withholding rates and MLI modifications for a specific country pair, rather than general country-level tax overviews. 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