I had a great experience with Costello. I worked with Justin on my elderly mother’s taxes. He was very kind and patient with her. We had her returns done in just a couple days and it was an easy process. I highly recommend him.
November 2025
Justin and his team at Costello Tax Resolution very successfully handled a decade-long IRS issue that was seemingly insurmountable, resulting in a very positive outcome. What we thought would be a tremendous burden turned out to be very manageable with their expert guidance. Justin and his team were incredibly prompt, trustworthy, knowledgeable, and professional throughout the entire experience. If you're feeling overwhelmed or uncertain about a tax situation—no matter how big or small—please don't hesitate to reach out to Costello Tax. They transformed what felt like an impossible situation into something we could actually handle. I cannot recommend them... read full review
August 2025
I contacted Justin about a tax filing and resolution problem. He was very upfront with steps I needed to take and though he could not help with the filing issue, he recommended several agencies that could help with that. Once I get the filing problem resolved I will definitely go to Justin to help with the resolution issue.
I had a great experience with Costello. I worked with Justin on my elderly mother’s taxes. He was very kind and patient with her. We had her returns done in just a couple days and it was an easy process. I highly recommend him.
Justin and his team at Costello Tax Resolution very successfully handled a decade-long IRS issue that was seemingly insurmountable, resulting in a very positive outcome. What we thought would be a tremendous burden turned out to be very manageable with their expert guidance. Justin and his team were incredibly prompt, trustworthy, knowledgeable, and professional throughout the entire experience. If you're feeling overwhelmed or uncertain about a tax situation—no matter how big or small—please don't hesitate to reach out to Costello Tax. They transformed what felt like an impossible situation into something we could actually handle. I cannot recommend them... read full review
I contacted Justin about a tax filing and resolution problem. He was very upfront with steps I needed to take and though he could not help with the filing issue, he recommended several agencies that could help with that. Once I get the filing problem resolved I will definitely go to Justin to help with the resolution issue.