com.arcandledgerPublished by arcandledger.comOfficial publisherv0.15.1Updated Oct 24, 2026
Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.
A read-only US tax reference server that explains IRS notices, forms and deadlines and produces clearly labeled estimates from nonidentifying figures.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/com.arcandledger%2Ftax-tools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"arc-ledger-tax-reference": {
"type": "http",
"url": "https://mcp.arcandledger.com/directory/mcp"
}
}
}This repository has no README.
Decode an IRS notice
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.
briefnotice_coderequiredamount_shownreceived_dateCheck IRS resolution options
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.
briefability_to_payrequiredbalance_owed_usdrequiredtax_account_typeall_required_returns_filedbalance_includes_penaltiesEstimate IRS penalties and interest
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.
months_laterequiredreturn_filedbalance_owed_usdrequiredExplain a tax 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.
briefdocumentrequiredUS filing deadlines for founders
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.
entity_typerequiredfiling_yearformed_in_ushas_us_source_wageshas_foreign_bank_over_10kCheck FBAR and FATCA obligations
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.
lives_abroadrequiredaccount_countfiling_statusrequiredunfiled_yearsmax_aggregate_foreign_balance_usdrequiredCheck US withholding and treaty rates (W-8BEN)
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.
payee_typeincome_typerequiredpayee_countryrequiredScreen an ITIN reason and application path
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.
reasonrequiredhas_ssnrequiredis_foreign_nationalCheck Form 5472 obligation
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.
entity_typerequiredformed_in_usforeign_ownedrequiredhad_reportable_transactionEstimate quarterly taxes
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.
stateentityrequiredprior_year_agi_usdytd_net_income_usdrequiredytd_withholding_usdprior_year_total_tax_usdEstimate accountable-plan reimbursements
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.
business_milescell_internet_usdmarginal_tax_rate_pctbusiness_mileage_periodhome_office_expense_usdother_business_expense_usdScreen the 14-day home-rental rule
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.
days_rentedrequiredmarginal_tax_rate_pctfair_daily_rental_rate_usdrequiredEstimate rental property taxes
Use to estimate a basic rental-income result from nonidentifying figures and identify the modeled depreciation, passive-loss, and personal-use limitations.
rental_daysrental_typeland_percentfiling_statusother_income_usdpersonal_use_daysoperating_expenses_usdannual_rental_income_usdrequiredreal_estate_professionalproperty_purchase_price_usd75% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
Declare a license in the repository or the registry entry.