Nexus

Tax nexus is the legal and economic concept that determines whether a business has established a sufficient physical or financial presence in a specific state to trigger mandatory tax obligations. Understanding state nexus is a critical compliance requirement for multi state and international companies operating in the U.S., as it dictates exactly where a business is legally required to register, collect, report, and remit corporate and sales taxes.

Does Hiring One U.S. Employee Create Tax or Payroll Obligations?

Yes. Hiring even one employee who works in the United States can create U.S. payroll, tax, registration, insurance, and employment-law obligations.

U.S. Subsidiary Setup Checklist: What International Companies Need

Forming a U.S. subsidiary is only the beginning. To operate properly, it also needs core infrastructure (an EIN, a bank account and registrations), it...

EIN and ITIN for Foreign Founders: What You Need to Know

An EIN identifies your U.S. company for federal tax purposes. An ITIN identifies you as an individual when you have a U.S. federal tax purpose but are...

Estate and Gift Tax Exemption 2026: New $15 Million Limit Explained

For 2026, the federal estate and gift tax exemption is $15 million per person, or $30 million for a married couple, up from $13.99 million in 2025. Th...

Key U.S. Business Dates for the Second Half of 2026

The most important U.S. business dates in the second half of 2026 are July 31 (Q2 Form 941), September 15 (extended partnership and S corporation retu...