International & Cross Border Tax

International activity creates opportunity. It also introduces complex tax risk. Whether you’re expanding business operations across borders or managing personal income, property, or financial interests outside of the United States, you need tax advisors who understand the rapidly changing rules governing international and cross-border taxation.

Lumsden McCormick works with U.S. companies with foreign operations, Canadian and other foreign entities doing business in the U.S., and individuals with international tax obligations. Leveraging deep technical expertise and national and international resources through the BDO Alliance, we proactively help manage compliance, reduce tax exposure, and plan strategically. That means you can navigate global tax issues with clarity and confidence, wherever your interests take you.

Our Approach

Integrated Global Tax Strategy

We align international, federal, state, and local tax planning to reduce tax liability while supporting your long-term business goals. When foreign tax considerations arise, we coordinate with your local-country advisors or help connect you with a trusted professional to ensure a fully aligned global approach.

Latest Insight

CAPE Opens in ACE: What Importers Need to Know About IEEPA Refund Processing

U.S. Customs and Border Protection (CBP) activated the Consolidated Administration and Processing of Entries (CAPE) functionality in the Automated Commercial Environment (ACE) on April 20, 2026, marking the first operational mechanism for processing refunds of duties paid under tariffs illegally imposed pursuant to the International Emergency Economic Powers Act (IEEPA).