U.S. TAX IQ is a tax boutique firm specializing in U.S. and international tax. With headquarters in Oakville, ON, the firm also has offices in downtown Toronto, and Washington D.C. Our experienced U.S. tax and international tax advisors offer effective and practical U.S. tax and cross-border tax consulting, planning and tax return preparation services. Whether you are a U.S. citizen or a green card holder in Canada, or a business owner with operations and investments in the United States, we can assist you with your cross-border and U.S. tax questions and needs. U.S. TAX IQ welcomes partner referrals.