Dragon Gate bookkeeping

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Dragon Gate bookkeeping is a Chinese double-entry accounting system that began in the late Ming dynasty (roughly 1570–1640). It grew from the older three-leg system and, by the mid‑18th century, led to a more advanced four‑leg form. It is considered the first purely double‑entry system in China and developed independently of European methods.

Originating with local bankers, it later spread to merchants and manufacturing during the Ming–Qing transition. Unlike European methods, it built on China’s traditional practices. The three‑leg system mixed single‑entry and double‑entry: receivables and internal transfers used double‑entry, but cash transactions were recorded only once. Dragon Gate, by contrast, uses double‑entry for all operations and groups transactions into income, expenditure, receivables, and payables.

The system used many journals—purchases, sales, cash, transfers—and ledgers, including general ledgers and specialized ledgers for purchases, sales, and inventory. Accounts were divided into four categories and entries were placed in a two‑part layout: the upper part (shou, “increase” or asset side) and the lower part (fu, “outflow” or liability side). All entries appear in double form, with both parts recorded in the journal.

At closing, which happened monthly, journals were summarized and moved to the general ledgers. There were two ways to calculate cost of goods sold: an inventory‑valuation method and the higher‑price method (usually the latter). Profit or loss was the difference between increases and decreases (or between assets and liabilities). The balance must stay in balance at closing.

Dragon Gate bookkeeping helped users see the true nature of transactions, clarify how profits were made, detect errors, and better connect capital, income, assets, expenses, and liabilities.