jpcite for tax advisors (zeirishi)

Special Measures Act search + tax incentives + e-bookkeeping / invoice-system revision alerts. Add source-linked Evidence Packets to 80 client-review workflows in 30 minutes.

Sized for a 5-person firm with ~80 SMB clients. Wire the MCP server into Claude Desktop or your AI workflow and retrieve compact evidence across 50 tax rulesets, e-Gov law metadata and article references (coverage varies by record), and 14,472 programs. Revision alerts keep e-bookkeeping (denshi-chobo), invoice-system (qualified-invoice), and consumer-protection law changes from slipping past you.

jpcite does not perform tax representation, tax document preparation, or tax consultation.

This service only provides information on publicly available tax incentive programs.

For specific tax judgments, please consult a 税理士 (Certified Public Tax Accountant).

Why jpcite

Primary-source coverage

NTA, MOF, e-Gov

tax_rulesets come from NTA primary documents; laws are e-Gov CC-BY; the Special Measures Act and related circulars are referenced at the article level. No aggregators (no second-hand sources). You can show the URL when explaining a position to a client.

181 exclusion rules

Catch incompatible measures up front

Combinations like wage-increase promotion + SME investment promotion + DX investment promotion are encoded as 181 exclusion / prerequisite rules. Avoid the "filed in combination, denied later" failure mode.

Revision alerts

e-bookkeeping, invoice-system, consumer-protection law

Register the articles you care about and receive revision, circular, and effective-date notifications by email. Monthly digest is free; real-time is ¥3/notification. Designed to prevent filing-season incidents.

Primary use cases

1. "Which special measures apply this year?"

Feed industry, headcount, and planned investment, and the prescreen endpoint returns the top 5 (wage-increase promotion, SME investment promotion, DX investment, special depreciation). Have Claude Desktop call search_tax_incentives via MCP and produce a proposal that cites article numbers, expiration dates, and exclusion rules.

2. Special Measures Act lookup + circular links

Look up an article like Article 42-12-5 (wage-increase promotion) and get its revision history. search_by_law reverse-resolves related programs (subsidies and tax incentives).

3. Catching e-bookkeeping / invoice-system revisions

Register the articles you care about and the alert arrives. Examples: revisions to Article 7 of the e-bookkeeping law (electronic-transaction data retention), the extension of the 2-percent special invoice-system rule, transitional measures for qualified invoices. Each comes with the primary-source URL.

4. Filing-season acquisition (widget)

Drop a one-line <script> on the firm site to embed an "applicable special measures" search box. ¥3/search metered (with logo) or ¥3/search metered (no logo). Visitors discover their own applicable measures, which converts to engagement.

5. Subsidy + tax-incentive cross-checks

When a client stacks a subsidy with a tax incentive, run combined_compliance_check to confirm "monozukuri subsidy + wage-increase promotion" doesn't trip the exclusion ruleset.

Start in 5 minutes

curl (anonymous, 3/day)

curl 'https://api.jpcite.com/v1/programs/search?q=賃上げ促進税制&tier=S,A&limit=5'

No signup, JST daily reset. Check remaining quota via X-RateLimit-Remaining.

Python (commercial, ¥3/billable unit)

import httpx
H = {"X-API-Key": "jc_..."}
# 1. Search NTA-sourced tax rulesets
r = httpx.get(
 "https://api.jpcite.com/v1/tax_rulesets/search",
 params={"q": "電帳法 7 条", "limit": 10},
 headers=H)
for row in r.json["items"]:
 print(row["name"], row["source_url"])

# 2. Pull tax incentives (DX, wage-increase, etc.)
r2 = httpx.get(
 "https://api.jpcite.com/v1/am/tax_incentives",
 params={"limit": 10}, headers=H)
for row in r2.json["items"]:
 print(row["name"], row.get("sunset_at"))

Use tax rulesets for source-backed tax references and structured entity tools for connected evidence. Issue API keys from your dashboard.

Claude Desktop (MCP)

// ~/Library/Application Support/
// Claude/claude_desktop_config.json
{
 "mcpServers": {
 "jpcite": {
 "command": "uvx",
 "args": ["autonomath-mcp"],
 "env": {"JPCITE_API_KEY": "jc_..."}
 }
 }
}

All 261 tools are callable from Claude. search_tax_incentives et al.

Tax-advisor pricing

¥3/billable unit metered (¥3.30 tax inclusive). The only fixed-fee item is the law-revision alert.

Tax-advisor recommended interface pricing
Interface Free quota Paid (tax excl.) Tax incl.
API + MCP3 req/day per IP¥3 / unit¥3.30 / unit
Law-revision alertsMonthly digest¥3 / notification¥3.30 / notification
Embedded widget (optional)3 req/day per IP¥3 / search¥3.30 / search
Professional-advisor affiliate (optional)Free signup¥3,000 / closed intro¥3,300 / closed intro

Estimate: 80 clients → 400-800 req/month → ¥1,200-¥2,400 tax exclusive. Full pricing →

FAQ (tax advisors)

What's the request volume for a firm with 80 clients (60 corporate / 20 individual)?

Roughly 5-10 inquiries per client per month → 400-800 req/month → ¥1,200-¥2,400 (tax exclusive). The March filing season can spike; use the spend cap if you want a hard ceiling.

How much tax law is covered?

tax_rulesets are 50 entries as of 2026-04 (centered on invoice and e-bookkeeping rules) and growing. The laws table exposes e-Gov law metadata and article references; coverage varies by record. See the API reference.

Are circulars and Q&A precedents available?

For now, statute text (e-Gov, CC-BY) and tax rulesets (NTA primary source) are available. Circulars and Q&A precedents have the schema in place; data load is in progress.

How detailed are the law-revision alerts?

Statute name, revised article, effective date, and related program IDs delivered by email and RSS. Monthly digest free; real-time ¥3/notification. Bodies are summaries with primary-source URLs.

Can I take inquiries via the professional-advisor affiliate?

Yes. Advisor signup is free; ¥3,000 per closed introduction (tax exclusive). List specialty, region, and rate card; consented SMB consultations route in from the web/API/Playground handoff flow.

How does this fit Article 38 zeirishi-law confidentiality?

jpcite does not use submitted search queries as training data. Inference logs are used for billing reconciliation only. When entering client-specific business details, follow your firm's internal policy.

Related audiences?

Administrative scriveners (permits + subsidy paperwork) and AI agent developers (evidence-layer workflows) overlap.

Tax advisor resources