> ## Documentation Index > Fetch the complete documentation index at: https://docs.uselim.com/llms.txt > Use this file to discover all available pages before exploring further. # Document Management > Electronic Bookkeeping Act compliance, document upload, and timestamping. # Document Management lim provides document management that complies with Japan's Electronic Bookkeeping Act (電子帳簿保存法 / 電帳法), which requires businesses to store and manage electronic records properly. ## Electronic Bookkeeping Act Overview Since January 2024, all businesses receiving electronic transaction data (invoices, receipts via email/web) must store them electronically with: 1. **Searchability** — by date, amount, and counterparty 2. **Timestamping** — proof that the document existed at a specific time 3. **Tamper prevention** — documents cannot be altered after storage 4. **Retention** — 7 years minimum (10 years for some) lim handles all four requirements automatically. Upload your documents and lim takes care of compliance. ## List Documents ```bash theme={null} lim docs list ``` ``` ID Type Date Amount Counterparty Entry doc_01KG... invoice 2026-03-01 11,000 AWS je_01K3... doc_01KH... receipt 2026-03-14 1,200 Cafe (unlinked) doc_01KI... receipt 2026-03-15 3,400 Taxi (unlinked) ``` ## Show Document Details ```bash theme={null} lim docs show doc_01KG... ``` ``` Document: doc_01KG... File: invoice-aws-march.pdf Type: invoice Date: 2026-03-01 Amount: ¥11,000 Counterparty: Amazon Web Services Timestamp: 2026-03-16T10:30:00+09:00 Hash: sha256:a1b2c3d4... Entry: je_01K3... Status: verified ✓ ``` ## Upload Documents ```bash theme={null} # Attach a document to a journal entry lim docs upload --file invoice-aws-march.pdf --entry je_01K3... ``` ``` ✅ Document uploaded: doc_01KG... File: invoice-aws-march.pdf Timestamp: 2026-03-16T10:30:00+09:00 Hash: sha256:a1b2c3d4... Linked to: je_01K3... (AWS monthly) ``` ### Upload Without Linking ```bash theme={null} # Upload first, link later lim docs upload --file receipt.jpg ``` ``` ✅ Document uploaded: doc_01KH... Pending journal entry linkage. ``` ## Metadata Requirements lim extracts and stores the required metadata automatically: | Field | Source | Required by | | ------------- | --------------------------------------- | ----------- | | Date | Extracted from document or entry date | 電帳法 | | Amount | Extracted from document or entry amount | 電帳法 | | Counterparty | Extracted from document or vendor name | 電帳法 | | Document type | Classified (invoice, receipt, contract) | 電帳法 | ## Search Documents Search by the required fields — date, amount, and counterparty: ```bash theme={null} # Search by counterparty lim docs search --counterparty "AWS" # Search by date range lim docs search --from 2026-03-01 --to 2026-03-31 # Search by amount range lim docs search --min 10000 --max 50000 # Combine search criteria lim docs search --counterparty "AWS" --from 2026-01-01 --to 2026-12-31 ``` ``` ID Type Date Amount Counterparty Entry doc_01KG... invoice 2026-03-01 11,000 AWS je_01K3... doc_01KL... invoice 2026-02-01 11,000 AWS je_01J9... doc_01KM... invoice 2026-01-01 11,000 AWS je_01H2... ``` ## Timestamping lim timestamps every document on upload with a cryptographic hash. This proves the document existed at the recorded time and has not been modified. ```bash theme={null} # Verify a document's timestamp lim docs verify doc_01KG... ``` ``` ✅ Document verified Original hash: sha256:a1b2c3d4... Current hash: sha256:a1b2c3d4... Timestamp: 2026-03-16T10:30:00+09:00 Integrity: intact ✓ ``` Documents cannot be deleted or modified once uploaded. This is by design — the Electronic Bookkeeping Act requires tamper-proof storage. If a document was uploaded in error, mark it as void instead. ## Bulk Upload ```bash theme={null} lim docs upload --dir ./receipts-march/ ``` ``` ✅ Uploaded 23 documents from ./receipts-march/ Auto-linked: 18 (matched by amount + date) Pending: 5 (manual linkage required) ``` ## Unlinked Documents Report ```bash theme={null} lim docs unlinked ``` ``` Unlinked Documents ──────────────────────────────────────────────── ID File Date Amount doc_01KH... receipt-cafe.jpg 2026-03-14 1,200 doc_01KI... receipt-taxi.jpg 2026-03-15 3,400 ``` ## Compliance Report ```bash theme={null} lim docs compliance --year 2026 ``` ``` Document Compliance Report: 2026 ──────────────────────────────────────────────── Total journal entries: 245 With documents: 230 (93.9%) Without documents: 15 (6.1%) ⚠️ Unlinked documents: 5 Timestamp verification: All passed ✓ Retention policy: 7-year minimum ✓ ``` ## Next Steps e-Tax export uses linked documents for audit trail. Attach files directly with `lim add --file`.