"Mike is truly passionate about what he does. I've never met someone so smart about all thing financial in all my life. I've been a client of Mike's for more than 7 years now. Mertz-International has been handling my taxes since 2012 and my companies' finances as well.

Mike has worked personally with me and always goes above and beyond to make sure I have all areas of my financial life in place regarding insurance, wills, investments, tax planning etc which has made a difference in my financial life as I'm not very good about those things. It's not just Michael, his whole team is great. They are really proactive, accommodating and a pleasure to work with.

It really gives me the peace of mind to know that I entrusted this work to the right company. He is an important partner in my business. I always recommend the services of Mertz-International and Michael to other business owners."

"I have enjoyed working with Mike who has helped me prepare not only this year’s taxes, but also the past 3 years of both my US federal and Massachusetts state taxes.

He and his team are very knowledgeable in both returns, especially considering some of the complexities of offshore accounts and onshore investments in standard brokerage accounts as well as real estate. He has managed to save me ~$7K+ USD on federal taxes and $2K+ USD (MA State) taxes after amending my 2013-2015 tax returns. Not only is the money being saved an obviously massive perk but the time I am able to save and overall confidence in “getting it right” has also been a huge save.

Mike is wonderful to work with, dedicated to helping his clients, organized, efficient and very easy to communicate with. I would highly recommend Mike and I am looking forward to a long-term relationship with him. Thanks Mike!"

"I have had the privilege of being Michael Mertz’s client since 2016.

As a US Citizen and a small business owner in Singapore who has been an expatriate living in Asia Pacific since 1996, it is critical to have a professional team you can depend on to stay on top of international tax matters and constant changes in tax laws for expatriates both in your home country and abroad. I travel a lot and have investments in multiple locations which makes my tax filing complex. Michael and his team have been absolutely brilliant!

They have saved me so much time, money and energy. Most importantly, I have peace of mind with them safely guiding me through what often feels like a minefield. Michael is masterful. He and his team always go the extra mile, are highly responsive all throughout the entire year and are always available to answer questions. I really appreciate the fact that they stay on top of me with reminders to meet filing and tax payment deadlines that are not normally top of mind.

I would highly recommend Mertz International to anyone! "