This document summarizes the features and functionality of Tally, an accounting software that uses double-entry bookkeeping. Tally allows users to record financial and inventory transactions through vouchers, and features modules for accounting, budgets, business management, inventory, manufacturing, payroll, purchasing, sales, and tax compliance. It supports both offline and online/multi-user modes. The document outlines how to open a company, alter company master data, enter vouchers for various transaction types, view monthly ledger summaries, and generate trial balances.