A complete finance back office: invoices and payments with automatic tax resolution across countries, vendor bills tracked to partial payment, budgets checked against live ledger activity, and an optional real double-entry General Ledger every one of those flows can auto-post to.
Tax resolved by the client's country via the Global Tax Engine; GL posts Accounts Receivable (debit) against Sales Revenue and Tax Payable (credit) if GL is enabled.
Recorded against the invoice, partial payments supported; GL posts Cash (debit) against Accounts Receivable (credit).
Tracked in Accounts Payable; GL posts an Expense (debit) against Accounts Payable (credit).
GL posts Accounts Payable (debit) against Cash (credit) -- the mirror of the payment-received entry.
Pulls the real income statement for the budget's period -- the "actual" side is never a separately-tracked number.

The General Ledger's chart of accounts, seeded automatically the moment it's enabled.
Enterprise deployment, workflow design, and data migration — talk to the team that builds it.