Adyen N.V. — Open Ledger

Adyen's financial history, FY2020–FY2024, modeled as a public, auditable plain-text Beancount ledger, converted directly from Adyen's own ESEF/iXBRL regulatory filings. Part of the Open Ledger project on beancount.io — public companies' income statements and balance sheets, reconstructed from primary filings and version-controlled in git.

Quick Start

bash
make install   # install dependencies (uv sync)
make check     # validate main.bean with bean-check
make serve     # start Fava web UI at localhost:5000

Zero output from make check means the ledger is internally consistent — every income statement sums to zero, and every balance-sheet snapshot reconciles to Adyen's own filed totals.

What's Inside

main.bean contains one balance sheet and one income statement transaction per fiscal year, FY2020 through FY2024, sourced from Adyen's investor relations financial reports.

Adyen's fiscal year ends December 31, and figures are reported in EUR.

Methodology

This repository is unusual among Open Ledger entries in that it is generated by a small conversion pipeline rather than hand-curated:

1. Fetcher — downloads Adyen's ESEF packages and extracts the iXBRL files
2. Parser — extracts FinancialFact objects (concept, value, date, currency)
3. Mapper — translates IFRS taxonomy concepts (e.g. ifrs-full:Revenue) into Beancount accounts
4. Generator — produces main.bean with account declarations and transactions

Beancount sign convention: assets/expenses are positive (debit balance); liabilities/equity/income are negative (credit balance). See CLAUDE.md for the account hierarchy and IFRS-to-Beancount concept mapping.

About Open Ledger

This repository is part of a growing library of public-company ledgers published at beancount.io/ledger — plain-text, git-versioned, and fully auditable. Explore more companies, or read the analysis behind the numbers, on the beancount.io blog.