mcp server
Arc & Ledger Tax Reference
Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.
Description as published by the maintainer. Source
- version 0.15.1
- active
active — Most recent push to the repository was 2026-07-31.
What this server can do
13 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
check_5472_obligation(entity_type, formed_in_us, foreign_owned, had_reportable_transaction)- Use to screen common Form 5472 triggers for a foreign-owned US disregarded entity or corporation. The result is a general filing screen and does not prepare or file the form. Required: entity_type, foreign_owned.
check_fbar_fatca(lives_abroad, account_count, filing_status, unfiled_years, max_aggregate_foreign_balance_usd)- Use to screen general FBAR and Form 8938 thresholds from aggregate balance, filing status, residence, and account-count facts. Do not request account numbers, institution names, or statements. Required: max_aggregate_foreign_balance_usd, filing_status, lives_abroad.
check_itin_eligibility(reason, has_ssn, is_foreign_national)- Use to screen general ITIN reason categories, whether a return is commonly attached, and supporting-document requirements. Never request or process an actual ITIN, passport, or identity document. Required: has_ssn, reason.
check_resolution_options(brief, ability_to_pay, balance_owed_usd, tax_account_type, all_required_returns_filed, balance_includes_penalties)- Use to screen general IRS payment and collection alternatives from a rough balance, filing-compliance status, ability-to-pay category, and coarse tax-account type when known. This is an educational fit screen, not a promise that the IRS will approve an option. Required: balance_owed_usd, ability_to_pay.
check_treaty_withholding(payee_type, income_type, payee_country)- Use to explain general US withholding rules, documentation, and supported US-Turkey treaty rates for a payment category. Treaty eligibility and source rules depend on the full facts. Required: income_type, payee_country.
deadline_calendar(entity_type, filing_year, formed_in_us, has_us_source_wages, has_foreign_bank_over_10k)- Use to return common federal filing and payment dates for a selected filer or entity type. The user must verify the date for weekends, holidays, extensions, fiscal years, and special facts. Required: entity_type.
decode_irs_notice(brief, notice_code, amount_shown, received_date)- Use when a user provides the code from an IRS notice or letter and wants a general explanation, the usual response window, or the next procedural step. Do not request the notice itself or any taxpayer identifier. Required: notice_code.
estimate_accountable_plan(business_miles, cell_internet_usd, marginal_tax_rate_pct, business_mileage_period, home_office_expense_usd, other_business_expense_usd)- Use to estimate potentially reimbursable business expenses under an accountable-plan scenario, including the split 2026 business-mileage rates. The result does not establish a plan or determine substantiation.
estimate_augusta_rule(days_rented, marginal_tax_rate_pct, fair_daily_rental_rate_usd)- Use to screen the fewer-than-15-days home-rental rule under IRC 280A(g) and calculate conditional amounts. Keep the owner-side income exclusion separate from the business-side requirements for ordinary and necessary use and reasonable rent. Required: fair_daily_rental_rate_usd, days_rented.
estimate_irs_penalty(months_late, return_filed, balance_owed_usd)- Use to estimate selected federal failure-to-file, failure-to-pay, and underpayment amounts from nonidentifying figures. The result is an estimate and does not replace an IRS account transcript. Required: balance_owed_usd, months_late.
estimate_quarterly_taxes(state, entity, prior_year_agi_usd, ytd_net_income_usd, ytd_withholding_usd, prior_year_total_tax_usd)- Use to estimate federal quarterly tax payments from nonidentifying income, entity, withholding, and prior-year tax figures. Return the assumptions, safe-harbor context, and due dates. Required: ytd_net_income_usd, entity.
estimate_rental_income(rental_days, rental_type, land_percent, filing_status, other_income_usd, personal_use_days, operating_expenses_usd, annual_rental_income_usd, real_estate_professional, property_purchase_price_usd)- Use to estimate a basic rental-income result from nonidentifying figures and identify the modeled depreciation, passive-loss, and personal-use limitations. Required: annual_rental_income_usd.
explain_tax_document(brief, document)- Use when a user names a US tax form or information document and wants to understand its purpose, common fields, or usual return treatment. Do not request or accept the document itself. Required: document.
Last successful function declaration observed on . Source: https://mcp.arcandledger.com/directory/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://mcp.arcandledger.com/directory/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| GitHub stars | 0 | Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. | cumulative, all time | GitHub | |
| Last commit | 2026-07-31 | Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. | point in time | GitHub | |
| Open issues | 0 | Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. | as of fetch | GitHub | |
| Latest published version | 0.15.1 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-28 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-28 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| repository status | active | The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. | as of fetch | GitHub | |
| mcp tools declared | 13 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | mcp.arcandledger.com | |
| mcp endpoint status | ok | The server listed 13 functions when asked. | as of probe | mcp.arcandledger.com |
Where to get it
Also from bgenc48
-
Arc & Ledger Tax Tools
— last commit 2026-07-31
Enrolled Agent tax tools: IRS notices, FBAR, LLC vs S-Corp, quarterly estimates & more.
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json