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.
Understand the real difference between zero tax return and no income tax filing, when filing is required, and how IRS rules treat each case.
Explore Zero Income Tax return in the US; when filing is required or optional, how to file, and the common mistakes to avoid if you earned no income.
Your complete 2025 guide to the ITIN Mortgage Program; how it works, requirements, lenders, and tips for non-SSN borrowers buying homes in the U.S.
Wondering how much an ITIN costs in 2025? Discover real ITIN application fees, renewal costs, and safe ways to apply without overpaying.
Got a CP567 Notice? Learn why your ITIN application was rejected, what it means, and how to fix it quickly with expert help from IRS-verified CAA.
Got a CP566 Notice from the IRS? Learn what it means, which ITIN documents you missed, and how to fix it fast without reapplying.
Understand your CP565 Notice from the IRS; what it means, why it’s issued, and how to replace a lost or missing ITIN confirmation letter
Essential 2025 guide on ITIN for foreign investors. Why it’s needed, how to apply, and how it keeps your U.S. investments tax-compliant.
Foreign buyers and sellers of U.S. property essential guidance for ITIN; understand FIRPTA, taxes, and how to apply for your ITIN the right way.
