IRS Certified Acceptance Agent
Founder & Lead Consultant, Business Globalizer
Abdullah Al Mamun is the first IRS Certified Acceptance Agent (CAA) in Bangladesh and the Founder of Business Globalizer. With over 10 years of international corporate consulting experience, he has personally helped 5,000+ non-US residents form fully compliant US, UK, and UAE companies, secure ITINs and EINs, unlock global payment gateways like Stripe and PayPal, and navigate complex IRS tax filings. Recognized by Bloomberg, AP News, and Benzinga, Abdullah is on a mission to make global business expansion accessible, transparent, and fully legal for entrepreneurs across 50+ countries.
Learn how to check if ITIN is expired, why ITINs expire, what happens when they do, and how to renew safely through an IRS Certified Acceptance Agent.
Learn how to apply for an ITIN from Bangladesh. Eligibility, documents, step-by-step process, and common mistakes to avoid.
Let’s learn how ITIN renewal works, when ITINs expire, how to check, renew, and avoid penalties if your number is no longer active.
See 10 real LLC examples from popular companies — Amazon, Google, Chrysler, Hertz, and more — why the structure works, and how it can give your business liability protection and tax flexibility.
Learn when an ITIN for spouse is required, how to apply with Form W-7, what documents are required, and how joint filing can help.
Got your ITIN application rejected? Let’s find out why it happens, how to fix it, and what to do before reapplying. The smart, stress-free way.
Learn how to apply for ITIN for dependents, required documents, benefits, and common mistakes when filing for a child or family member.
Confused about ITIN for international students? Here’s when you need it, how to apply, what documents to include, and how to avoid rejections.
Find out everything about Airwallex supported countries & currencies. An ideal guide for nonresident entrepreneurs wanting global payment access.
