An Advance Pricing Arrangement (APA) is a formal, binding agreement between a taxpayer and one or more tax authorities — such as India's Central Board of Direct Taxes (CBDT) — that pre-determines the transfer pricing methodology and the arm's length price for specified international transactions between related parties (such as a parent company and its Indian subsidiary) for a fixed future period, typically three to five years. APAs eliminate uncertainty and transfer pricing disputes by establishing agreed-upon pricing rules in advance, providing both the taxpayer and the tax authority with certainty on how cross-border intra-group transactions will be taxed. India's APA programme, launched in 2012, has become one of the most active globally. For multinational corporations operating in India and investors analysing India-listed companies with significant related-party transactions, APAs are a critical mechanism for reducing tax litigation risk and improving earnings predictability.