About ccpcrate — Canadian CCPC corporate tax
Deterministic Canadian CCPC rate stack: small business deduction and grinds, Part IV, RDTOH
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
Endpoint
https://ccpcrate.ca/mcpCopy install command
Claude CodeTerminal
claude mcp add --transport http ca-ccpcrate-ccpcrate https://ccpcrate.ca/mcpCursor.cursor/mcp.json
{"mcpServers":{"ca-ccpcrate-ccpcrate":{"type":"http","url":"https://ccpcrate.ca/mcp"}}}Open in CursorVS Code.vscode/mcp.json
{"servers":{"ca-ccpcrate-ccpcrate":{"type":"http","url":"https://ccpcrate.ca/mcp"}}}Open in VS CodeClaude Desktopclaude_desktop_config.json
{"mcpServers":{"ca-ccpcrate-ccpcrate":{"type":"http","url":"https://ccpcrate.ca/mcp"}}}Windsurf~/.codeium/windsurf/mcp_config.json
{"mcpServers":{"ca-ccpcrate-ccpcrate":{"serverUrl":"https://ccpcrate.ca/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
4| Parameter | Type | Required | Description |
|---|---|---|---|
| qc | object | No | Québec inputs (CO-771) |
| qc.instalmentsPaid | number | No | Acomptes provisionnels paid (CO-17 line 440) — enables the balance lines |
| qc.taxableIncomeQc | number | No | CO-17 taxable income when it differs from federal |
| qc.hours07aCurrentYear | number | No | CO-771 line 07a: remunerated hours, current year (required with 07b for the CO-771 layer) |
| qc.plafondGroupAllocated | number | No | CO-771 plafond allocated to this corporation (defaults to businessLimitAllocated) |
| qc.hours07bGroupPriorYear | number | No | CO-771 line 07b: remunerated hours, associated group, prior year |
| qc.capitalVerseGroupPriorYear | number | No | Capital versé of the associated group, prior year (CO-17 line 426a) |
| taxYear | object | Yes | |
| taxYear.end | string | Yes | Last day of the taxation year |
| taxYear.start | string | Yes | First day of the taxation year |
| province | enum | Yes | Province of the permanent establishment (two-letter code)AB | BC | MB | NB | NL | NS | NT | NU | ON | PE | QC | SK | YT |
| cdaOpening | number | No | Capital dividend account opening balance (returns cda_closing) |
| rdtohOpening | object | No | Opening ERDTOH / NERDTOH in T2 terms. Omitted = 0 with a warning when it matters |
| rdtohOpening.erdtohLine520 | number | No | Prior year's closing ERDTOH, T2 line 530 (printed before that year's refund) |
| rdtohOpening.nerdtohLine535 | number | No | Prior year's closing NERDTOH, T2 line 545 |
| rdtohOpening.erdtohRefundPrev | number | No | Prior year's dividend refund out of ERDTOH (line 570) |
| rdtohOpening.nerdtohRefundPrev | number | No | Prior year's dividend refund out of NERDTOH (line 575) |
| taxableIncome | number | No | Part I taxable income (T2 line 360). Omit for a holdco and supply the income lines instead; the engine derives it |
| netIncomeForTax | number | No | Holdco: net income for tax purposes (Sch 1 result) — overrides the derivation |
| propertyExpenses | number | No | Holdco: deductible property expenses of the year (total) |
| groupAaiiPriorYear | number | No | T2 line 417: Σ Sch 7 line 745 of the associated group for taxation years ending in the preceding calendar year. REQUIRED whenever a business limit is claimed |
| netIncomeAccounting | number | No | Holdco: net income per financial statements |
| otherPropertyIncome | number | No | Holdco: property income other than dividends and capital-gains dividends |
| taxableCapitalGains | number | No | Sch 6: taxable capital gains (the included half) |
| activeBusinessIncome | number | No | T2 line 400: income from an active business carried on in Canada |
| lossesByYearOfOrigin | object | No | Sch 4 Part 6: opening balances by year of origin, e.g. {"2011": 263564} |
| provincialProportion | number | No | Share of taxable income allocated to the province (Reg. 402). Default 1 |
| capitalGainsDividends | number | No | Capital-gains dividends received (full amount; half to CDA) |
| dividendsPaidEligible | number | No | Eligible dividends paid (designated) in the year |
| allowableCapitalLosses | number | No | Sch 6: allowable capital losses of the year |
| businessLimitAllocated | number | No | Business limit allocated to this corporation (Sch 23 line 410 if associated, else the statutory limit). 0 = allocation zero |
| foreignInvestmentIncome | number | No | T2 line 445: foreign investment income |
| nonCapitalLossesOpening | number | No | Sch 4: non-capital loss pool at the start of the year |
| dividendsPaidNonEligible | number | No | Non-eligible taxable dividends paid in the year |
| foreignBusinessTaxCredit | number | No | T2 line 636: foreign business income tax credit |
| aggregateInvestmentIncome | number | No | T2 line 440: aggregate investment income (s.129(4)) |
| dividendsReceivedConnected | array | No | Dividends from connected corporations (s.186(4)) — Part IV only through the payer's refund |
| foreignNonBusinessTaxCredit | number | No | T2 line 632: foreign non-business income tax credit |
| taxableCapitalGroupPriorYear | number | No | T2 line 415: taxable capital employed in Canada of the group, prior year. Omit when under 10 M |
| dividendsPaidOfWhichConnected | number | No | How much OF the dividends paid above went to connected corporations — a portion of dividendsPaidEligible + dividendsPaidNonEligible, never an amount on top of them. Raises the cascade warning on the payer side. In a ccpcrate_group call the recipients' own dividendsReceivedConnected amounts govern the 186(1)(b) share; this field is then cross-checked against them |
| dividendsReceivedPortfolioEligible | number | No | Eligible taxable dividends from non-connected payers (Part IV → ERDTOH) |
| nonCapitalLossesClaimedAgainstPartI | number | No | Non-capital losses claimed against Part I income |
| nonCapitalLossesClaimedAgainstPartIV | number | No | Non-capital / farm losses claimed against Part IV (s.186(1)(c),(d)) — the loss amount |
| dividendsReceivedPortfolioNonEligible | number | No | Non-eligible taxable dividends from non-connected payers (Part IV → NERDTOH) |
Details
The maintainer has not added details yet. Check the README in the repository.
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