MCP Server

site

com.expatriationtaxcalculator/site
Finance & Investing Legal & Compliance Public & reachable MCP 2025-11-25

What this MCP does

Calculates potential US Section 877A expatriation tax exposure and can initiate a consent-based enquiry with human providers.

calculate
Section 877A exit tax calculator
Run the Section 877A exit tax calculator calculator: Covered expatriate status; Test met (first that applies); Section 877A(a)(3) exclusion applied; Gain subject to the exit tax. Missing inputs fall back to their documented defaults.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'gain': {'type': 'number', 'default': 5000000, 'maximum': 500000000, 'minimum': 0, 'description': 'Net unrealized gain on worldwide property'}, 'rate': {'type': 'number', 'default': 20, 'maximum': 45, 'minimum': 0, 'description': 'Assumed federal rate on the deemed gain'}, 'avgTax': {'type': 'number', 'default': 250000, 'maximum': 10000000, 'minimum': 0, 'description': 'Average annual net income tax, 5 years before expatriation'}, 'netWorth': {'type': 'number', 'default': 3000000, 'maximum': 500000000, 'minimum': 0, 'description': 'Net worth on the expatriation date'}, 'certified': {'type': 'string', 'default': '1', 'description': 'Can you certify 5 years of federal tax compliance on Form 8854?'}}, 'additionalProperties': False}
calculator_describe
What Section 877A exit tax calculator computes
The inputs this calculator takes (with units, ranges and defaults), the outputs it returns, and the assumptions and tables behind it.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
enquiry_describe
What you get: an ENQUIRY with a human (not a purchase, not a guaranteed quote)
Read first. States plainly what submit_enquiry does on Expatriation Tax Calculator: it starts an enquiry with human providers who quote directly. Nothing is bought, ordered or paid; no quote is guaranteed; it is free. Also returns who receives the details, the consent wording, and how the person confirms.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
enquiry_fields
The questions the enquiry asks
Every field of the Expatriation Tax Calculator enquiry: key, label, type, whether required, help text and the allowed options where there are any. Pass answers to submit_enquiry keyed by field key.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
submit_enquiry
Submit an ENQUIRY to human providers (two steps; not a purchase)
Submits an enquiry to Expatriation Tax Calculator — NOT a purchase, NOT a guaranteed quote. Step 1: call with the answers (keyed by field key from enquiry_fields) and consent=true; it validates and returns a summary, the consent line and a confirmation token — show the person the summary and the consent line. Step 2: only if the person agrees, call again with the same answers, consent=true and the confirmation token; the enquiry is then submitted, and the person receives an email with a link they must click before any provider sees it. Consent means the person has read and agreed to: "Happy for my details to go to a relevant cross-border tax adviser, who'll contact me directly."
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answers', 'consent'], 'properties': {'answers': {'type': 'object', 'description': "the person's answers, keyed by field key", 'additionalProperties': {'type': ['string', 'number', 'boolean']}}, 'consent': {'type': 'boolean', 'description': "true only when the person has agreed to: Happy for my details to go to a relevant cross-border tax adviser, who'll contact me directly."}, 'confirmation': {'type': 'string', 'description': 'the confirmation token from step 1, after the person has approved the summary'}}, 'additionalProperties': False}
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submit_enquiry
Sept. 23, 2026, 2:40 a.m.
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enquiry_fields
Sept. 23, 2026, 2:40 a.m.
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enquiry_describe
Sept. 23, 2026, 2:40 a.m.
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calculate
Sept. 23, 2026, 2:40 a.m.
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calculator_describe
Sept. 23, 2026, 2:40 a.m.