Voiced/docs/voiced-invoice-v1.md

voiced.invoice.v1

A neutral export of issued invoices for software Voiced has no direct integration with. Choose invoices in the History list (checkboxes) or open one, then use "Export selected (voiced.invoice.v1 JSON)" or "(line items CSV)". The code is src/lib/invoiceExportV1.ts; src/lib/__golden__/invoice-v1.golden.json is a full example.

Rules

• Money is exact. Every amount appears twice: <name>_paise (an integer) and <name> (a decimal string with two places, e.g. "7310.10"). Nothing is a float. Rates (percent) are decimal strings such as "9" or "6.25".
• Deterministic. The same invoices give the same bytes: fixed key order, no timestamps, input order kept.
• JSON file is an array with one object per invoice; each object carries "schema": "voiced.invoice.v1".
• Cancelled invoices are included with "cancelled": true (their figures are kept; filter them out of sums).
• An unregistered supplier's plain "Invoice" has document_type: "invoice", all tax heads zero and no supplier GSTIN.

Invoice object

Key	Meaning
schema, number, issue_date, due_date	YYYY-MM-DD dates; due_date is null when unset
document_type	tax_invoice or invoice
status, cancelled, cancelled_at, cancel_reason	status is issued or cancelled
currency, po_number	always INR
supplier	name, address, gstin (null if none), pan, gst_registration, state {code, name}; frozen at issue
client	name, gstin, gst_category, address {text, line1, line2, city, pincode, state}, place_of_supply {code, name}
items[]	line, description, hsn_sac, quantity (decimal string), unit, rate, taxable_value (each with _paise)
tax	cgst, sgst, utgst, igst, each {rate, amount_paise, amount}; heads that do not apply are zero
totals	subtotal, discount, taxable_value, tax, total (each with _paise), amount_in_words
reverse_charge, notes
payments[]	date, amount (cash), tds, mode, reference (amounts with _paise)

Notes on the fields:

• Items. taxable_value of a line is the line amount before the invoice-level discount. totals.taxable_value is subtotal - discount, the base the tax is charged on. A fixed-amount line has quantity "1" and unit null.
• Units. On a rate line unit is a built-in id (unit, piece, set, session, second, minute, hour, day, week, month, km, m, sqft, sqm, kg, litre) or the custom text typed on the invoice (at most 12 characters: letters, digits, spaces and . / -). quantity may be fractional; a time typed as 4:20 hours is stored as the exact repeating decimal.
• UTGST. When the supplier is in a union territory without a legislature (state codes 04, 26, 31, 35, 38) the second head is reported under utgst and sgst is zero.
• Client details. The name, GSTIN, printed address and place of supply are frozen on the invoice. The structured address parts and gst_category come from the client's saved record at export time (null or derived from the GSTIN when the invoice has no saved client).
• Supplier snapshot. Only name, address, GSTIN, PAN, registration and state are exported; logo paths, e-mail and phone are not.

Line-items CSV

One row per line item, UTF-8 with a byte order mark and CRLF line ends; text cells that a spreadsheet would read as a formula get a leading apostrophe. Columns: invoice_number, issue_date, due_date, document_type, status, cancelled, currency, supplier_name, supplier_gstin, client_name, client_gstin, client_gst_category, place_of_supply_code, place_of_supply, reverse_charge, line, description, hsn_sac, quantity, unit, rate, taxable_value, invoice_discount, invoice_cgst, invoice_sgst, invoice_utgst, invoice_igst, invoice_total. The invoice_* amounts are filled on the first row of each invoice only, so summing a column never counts an invoice twice.