Long Island Tax Resolution Services specializes in providing affordable solutions to both individuals and small businesses experiencing back tax problems. These are either IRS tax problems or State tax problems.
Long Island Tax Resolution Services (longislandtaxresolution.com) has 44 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
Also known as
longislandtaxresolution.com
Website
longislandtaxresolution.com
Category
Accounting & Tax
Location
Bohemia, New York
Listed on Five Star Index
2026
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The company replied to 2% of reviews.
Latest
Most recent review: April 2026.
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My experience is always great with Jim , even though I know I'm sometimes annoying he never seems to mind. He also gets them done very efficiently and quickly. He has a very simple way of uploading everything I don't even have to go there. I've been using him for years and this man really knows is stuff. I would highly recommend his services.
JR
JOAN R.
Extremely professional, highly knowledgeable and focused on your individual and unique concerns.
I was recently widowed and unbeknownst to me, I inherited a voluminous collection of "Unpaid, Intent to Levy" notices from both the IRS and NYS. Upon receiving a recommendation from our long term and trusted accountant, I hesitantly contacted Mr. James Grennen and informed him of my plight. In a very professional manner, he quickly understood my unique needs and concerns and with a great deal of compassion, he formalized an individualized plan required to ease my fears and apprehension. His extensive experience in dealing with the governmental agencies involved was priceless and highly effective. I will be eternally grateful for his assistance and his concern and diligence regarding any obstacle encountered while resolving my "Tax Situation". Without any hesitation, I highly recommend this gentleman for any taxation issues or concerns that you may encounter in your life.
Thank you again, Mr. Grennen.
CA
Carl
I was in trouble with the IRS mostly due to my own fear.
I was in trouble with the IRS mostly due to my being frozen by fear. I was in denial, paralyzed and didn't know where to turn. A steady stream of threatening letters were arriving in the mail and then the IRS garnished my wages. I had to do something.
Then a friend told me about Long Island Tax Resolution Services. I called their number and found a sympathetic, calming, and very professional voice on the phone at Long Island Tax Resolution Service. My contact, James Grennen, listened to my situation, understood my very sophisticated and nuanced tax law issue and gave me hope that he could help resolve the perceived misunderstanding at the IRS.
Mr.Grennen requested my tax records. Once my records were received Mr. Grennen asked clarifying questions. At the end of this process Mr. Grennen reiterated his opinion that my situation could be equitably resolved with the IRS and that he would get back in touch with me soon.
We exchanged subsequent clarifying information on several different occasions and in due time the IRS garnishment was removed and the large balance that IRS was seeking from me was cancelled. Case Closed.
MA
Mark
Jim offered me solid
Jim offered me solid, comprehensive, as well as very reassuring guidance and advice during a very stressful financial experience.
After just one initial phone call I felt like I could take a breath and trust him to guide me through it -- which he did.
"Highly Recommend" falls short.
VL
Vinny Logi Lo G.
When you're at the end of your rope…
When you're at the end of your rope with your tax returns, reach out and grab hold of one of the many lifelines that James Grennen has to offer. He is an honest,straight to the point kinda guy. Just when you think all hope is gone, James can show you different ways you can approach your particular situation and choose the one that will best suit you. And, he'll work with you until you're completely satisfied. He worked wonders for my family and me. So when you think 'there's no way out of this mess' or you just need an accountant that can get the job done for you...give James Grennen a call and put an end to your stress and worries.
KS
Kevin S.
James is very knowledgeable and has…
James is very knowledgeable and has many years dealing with the IRS with all types of cases. He continues to communicate all issues and how I have to respond back always with clarity and professionalism.
We have been working together for Five years and highly recommend his services to everyone.
GM
Glenn M.
James Grennen , A True Trustworthy Professional...
James Grennen, Tax Resolution Specialist, Is Professional , Intelligent & On-Point ...!! Jim Solved BOTH My Federal & State Tax Problems... I Was In Arrears Due To Health Issues ... Mr.Grennen Was A No-Nonsense, Yet Understanding Human Being ... His Knowledge Of The Rules & Regulations Of The United States Treasury & NYS Department Of Taxation & Finance Is Second To None ... He Explained What The Procedures Would Be & What Expectations I Should Have ... He Was Patient With Handling All Of My Questions ( And I Had ALOT ) ... He ( Himself ) Dealt Directly With The Feds & State ... My Total Balance Owed To The IRS Was Lessened By $25,000 ,Since I Was A First Time Offender..I Would Of Never Known This Could Be Done ,But Mr. Grennen Obviously Did ..!! He Set Up 2 Payment Plans For Me With Each Authority & They Were Manageable, Due To The Balances Being Lower Than If I Did Not Hire Long Island Tax Resolution Specialists ... I Believe Mr. Grennen Truly Had My Best Interest At Heart & Genuinely Was Happy For Me When All Of My Visits ,Phone Calls , E Mail & Texts Came To A End , When The Case Was Closed .... A+ For James Grennen & His Company..... Respectfully, Glenn A. Mauro
TJ
T.Janis
L.I. Tax Resolution Service is top/notch!
All I can say is “Thank God” I found Jim Grennen! Tax issues can be very alarming to say the least. I was overwhelmed and knew I needed help. Not only did I get the help I needed, but I got honest advice that helped saved me thousands of dollars!
Mr. Grennen has been my go-to accountant for the last 4 years! He is reliable, answers calls, gives excellent feedback and guides you through a process that can be scary & costly. I highly recommend, you won’t be disappointed!