Going Global: why cross-border eCommerce needs a smarter tax and compliance infrastructure

By Dulles Krishnan, General Manager, India Operations, Avalara

Cross-border eCommerce continues to expand rapidly, with global B2C eCommerce projected to exceed $16 trillion and B2B eCommerce more than $62 trillion by 2030. For Indian businesses, this creates significant opportunities to reach new customers and diversify revenue beyond domestic markets. However, global expansion is often more complex than businesses anticipate. While customer acquisition and logistics frequently command the greatest attention, tax obligations, regulatory requirements, and shifting trade policies can be just as important in determining success. As businesses enter new markets, compliance becomes a critical part of the infrastructure supporting cross-border commerce.

Regulatory complexity varies significantly across jurisdictions, and businesses increasingly feel that complexity at the transaction level. An Indian business selling internationally may need to manage product classification, customs declarations, import duties, and a range of trade compliance obligations across markets. Beyond moving goods across borders, businesses must also contend with jurisdiction-specific tax obligations that can arise as sales volumes grow. In the United States, economic nexus rules can create state-level sales tax obligations, while expansion into the European Union or the United Kingdom introduces VAT requirements and digital reporting obligations. Without connected systems and automation, these obligations can quickly outpace manual finance processes and create operational risk.

As transactions flow through payment networks, marketplaces, and finance systems, cross-border commerce has become far more interconnected. Tax determination, reporting, and documentation increasingly need to be embedded within transaction workflows and integrated with the systems handling payments, invoicing, fulfilment, and financial reporting. When that data moves across systems in real time, organisations gain greater visibility, reduce manual effort, and improve resilience.

Consider an Indian eCommerce brand scaling its US presence through digital marketplaces and affiliate channels. As sales volumes grow across multiple states, the business may trigger economic nexus and create new sales tax obligations without ever establishing a physical presence. Layer on customs, duties, and documentation requirements, and compliance can begin to affect fulfilment timing, landed cost visibility, and margin. This is why tax can no longer sit in a spreadsheet or remain a disconnected back-office task. What businesses need is compliance infrastructure that integrates with the systems they already use, from payment platforms and invoicing tools to ERPs and the broader commerce stack.

This is where automation, and increasingly AI-enabled compliance systems, become important. Modern solutions can determine applicable taxes and duties in real time, monitor regulatory changes, support registration and filing workflows, maintain auditable records, and increasingly use AI to help identify compliance risks before they become operational issues. Instead of relying on periodic reviews and fragmented spreadsheets, businesses can embed compliance into the same workflows that support payments, invoicing, and finance operations.

Building a more connected compliance framework

Businesses are embedding tax determination, regulatory monitoring, product classification, and documentation management into the systems already supporting payments, eCommerce, invoicing, and financial operations. This reduces manual effort while improving accuracy, scalability, and control across markets. Looking ahead, AI-driven agentic compliance will increasingly help organisations monitor obligations, identify regulatory triggers, and initiate compliance workflows across markets in real time. However, this level of automation depends on a strong deterministic AI foundation. As commerce becomes more connected, businesses need platforms that deliver the speed and efficiency of AI, while maintaining the accuracy, consistency, and auditability that compliance demands. By building on this deterministic cornerstone, companies can confidently meet increasingly complex regulatory obligations. Ultimately, when tax is integrated into the broader commerce ecosystem, organisations can enter new markets with greater confidence, respond faster to regulatory change, and support growth without adding unnecessary operational friction.