"For more than 10 years, John and his team have given us peace of mind with their excellent work. They are reliable, organized, and very attentive. I recommend them without hesitation." read more

We all know tax season can be stressful, but with Jon at the helm, filing this year turned into a surprisingly pleasant experience! From the moment we walked into Jon's office, his entire team made us feel welcome and comfortable. It was like having a friendly and supportive family helping us navigate the tax maze (something we definitely needed!). Jon himself is a true tax whiz. He patiently reviewed every document with a keen eye, explaining everything in a way that even a complete tax novice like me could grasp. Beyond his knowledge, Jon's patience and kindness were truly remarkable. No question felt insignificant, and he took the time to break down complex concepts for both me and my business partner until everything clicked. Honestly, he took care of everything! And a big shoutout to Marco and Dulce too! Marco was a fantastic behind-the-scenes support throughout the whole process. Dulce helped me with my personal taxes as well so patiently. If you're looking for a tax team who treats you like family, explains things clearly, and gets the job done right, look no further than Jon and his team! They truly relieved our tax season stress and made the experience surprisingly enjoyable. From your friends at Mirage Co., Jonathan M. read more

ISTAX Pro - The ISTAX PRO TEAM is kicking butt and taking names. Thank you, Jon, Rosie, Dulce, Marco + Everyone. - Accountants Near Me - Burbank, California

At the commencement of 2019, John Ismerio graciously took me in as his intern to assist him during the interim tax season. In my orientation, he emphasized the importance and value of staying up-to-date on tax law, especially during a year where we were introduced to such an extensive tax reform (Tax Cuts and Jobs Act). He was adamant about me being educated with the many changes to the tax laws, but more importantly, he wanted to make sure that that knowledge was shared and translated just as well to our clients. ISTAX Pro offers services in both English and in Spanish. In fact, John works extensively within the Latin community in the San Fernando Valley. John Ismerio is a very giving, honest, and hard-working individual who offers great services and is a scholar in the world of business. He introduced this great character not only to me, but I also witnessed him share the same cordial demeanor with all of his clients. It was a true blessing to have worked under his supervision and guidance and I am grateful to have received the opportunity. Revisión en español: Al comienzo de 2019, John Ismerio me recibió gentilmente como interno para ayudarlo durante la temporada de impuestos. En mi orientación, enfatizó la importancia y el valor de estar al día con la legislación fiscal, especialmente durante un año en el que nos presentaron una reforma fiscal tan extensa (Ley de recortes de impuestos y empleos). Se mostró inflexible en mi educación con los muchos cambios a las leyes fiscales, pero lo más importante, quería asegurarse de que ese conocimiento se compartiera y se tradujera tan bien para nuestros clientes. ISTAX Pro ofrece servicios en inglés como en español. De hecho, John trabaja extensamente dentro de la comunidad latina en el Valle de San Fernando. John Ismerio es una persona muy generosa, honesta y trabajadora que ofrece excelentes servicios y es un erudito en el mundo de los negocios. Presentó este gran personaje no solo a mí, sino que también lo vi compartir el mismo comportamiento cordial con todos sus clientes. Fue una verdadera bendición haber trabajado bajo su supervisión y orientación, y estoy agradecido de haber recibido la oportunidad. read more

John at Istax is professional, reliable and knowledgeable. He returns our calls or emails promptly every single time. His work ethic is admirable. We wouldn't trust our business needs with anyone else. read more

Do not use this firm for your tax services!!! I used to use John about seven years ago before I was married and I never had issues. I stopped using him once I got married to someone who was self employed and we used another firm. Fast forward to this year and I'm divorced so I figured I would go back to using John. I had an appointment to file my 2018 taxes on 10/09/19. A few red flags that I didn't think much of at the time. John was extremely cold (whatever, I don't need my tax preparer to be my bff) and he asked for $395 dollars up front. Again, I used John several years back so there WAS trust that I was going to get the service I paid for. We go through the motions, he notifies me of the tax amounts I will owe the IRS and CA FTB (mindful I was 90 % done with filing my own taxes through turbo tax so I saw more or less what I was going to owe, I just wanted to get an expert to review and ensure I was taking advantage of tax deductions I may have missed, John saved me no money, I was better off filing myself) I give him my checking account info to go ahead and pay off my state taxes and he said he would send me confirmation of my tax submittals no later than Friday 10/11/19. I didn't think of it, but in previous appointments with John I would sign my e file forms and leave with a copy of my tax forms he submitted. None of this happened. I began to get really concerned when Friday came around and I heard nothing from John and my CA taxes had not been deducted from my account. I call John, no answer, all I get back is a text that he was in a conference and that he would be back to me Monday. Mindful that I'm 3 business days away from 2018 deadline. No information on if my taxes were submitted or even an email to give me a copy of my tax forms. It would have taken minutes out of his day to give me something. If I'm going to pay someone $395 for an hour of work (if that) I expect service. I wasn't asking for the moon and stars. I spent hours on the phone with the irs then the CA FTB to see if they had a record of my filing. They did not. It was only when I told him I was going to file a claim with my cc company to not pay the $395 fee for services not rendered did he submit my taxes. How do I know? The text message I sent John telling him this and his submittal time of my taxes were right after that message. He hadn't submitted anything that whole time! I don't have a lot of time to write yelp reviews like this but I was damn sure going to write one for this experience and hopefully save someone else from going through the same thing. read more

John gave me the opportunity to join his team as an intern in June 2018. I am extremely grateful for the valuable experience I have gained while at ISTAX Pro. Before this internship, I knew close to nothing in the subject of taxation and accounting. Even though I am majoring in the subject itself, I was able to learn more in 10 months than what I have learned in 4 years in the school setting. Tax season was an unpredictable experience I will never forget. John was always open to answer any questions we had and spent countless hours making sure we learned everything we needed through trainings and other opportunities. I highly recommend his services to anyone looking for a dedicated, trustworthy accountant that besides demonstrating his expertise, he offers a personal relationship with his clients. Thank you John, thank you ISTAX Pro! read more

I've been working with John for several years. Working with John actually makes me look forward to tax season! His team is always professional and friendly and best of all, very organized. We have a checklist of requirements before we meet and this makes the process go quickly and painlessly. I highly recommend John to be entrusted with your tax planning. Cheers!! read more

I want to thank ISTAX Pro for expanding my horizon throughout this tax season. John is very experienced in this field and yet very humble to lead, educate, and most importantly, he brings me to the whole new level of professionalism. John is always happy to answer all your tax related questions. Anybody that wants to have their taxes done without any headache should go to ISTAX Pro as this company is now 100% paperless and virtual. read more

I've been doing my taxes with Johnny for years & the results have always been fantastic! He is extremely knowledgeable & up to date with all tax laws. This year for some unknown reason, I decided to file with a friend but almost immediately felt very strongly that my taxes were done incorrectly. I waited about a month before reaching out to Johnny & he immediately reviewed my taxes. I discovered some inconsistencies so I decided to Amend my taxes. Instead of paying I was actually owed a refund. Lesson learned! Stick with ISTAXPRO! Always! read more

I have been a dentist 20 years, but this is the first time I am beginning to understand the business aspect of owning a dental practice. John and his team at Istax spend countless hours making sure all the numbers add up. They have given me a new level of financial literacy and have helped me understand my business better for future growth, estate planning, budgeting, payroll, taxes, etc. I can't thank them enough! Highly recommend this professional and experienced team for all your financial guidance needs!! read more

I have been going to John and his team for my income tax preparation services for several years now and I must say I always feel confident that my taxes are being handled with care and professionalism. John makes himself available for questions and I never feel rushed during my appointments. It is very important for me to feel that I can trust the Team handling my tax filings. With John and his Team trust is and always has been there. read more

John and the ISTAX team are fantastic, I've been going to John for all my tax needs/advice for 17 years and without a doubt always a great experience. If you haven't had the pleasure of joining one of his seminars you are missing out on valuable information. Thanks again ISTAX for all the years of tax services and looking forward to setting up our family's living trust. read more

I have been going to John from Istax for a lot of years now. He has a wealth of knowledge and is always up to date on anything tax as well as business, accounting etc... amongst other things. His attention to detail is unmatched. His customer services is the best. I highly recommend Istax Pro for all your business needs. read more

ISTAX as a business has been around for a long time, however I have been receiving my tax service from John way back to even think how life has unfolded for so many years. I just have one thing to add and that is he does without a doubt provide excellent service that you will not regret have faith in the process. Thank you! read more

John is the best!! Come see him for all your tax needs opened new office on sepulveda and Plummer!! Awesome!!

Tax Season can always be a little nerve wrecking from some but John made my experience this year nice and easy! His great hospitality and expertise made this Tax year a great one :) read more

John is great at what he does! I've been having my returns prepared there for 7 years and followed him as he moved to another location and back. He acquired all the info he needed to prepare my taxes involving income tax laws from several different states. I'm very confident in his. Cpa abilities, And even though I'm quite a distance away from burbank, the peace of mind is worth the trip. read more

ISTAX Pro has been completing my tax returns for at least a decade! John Ismerio is knowledgeable, complete and honest. It is always great to see him each year. read more

While we had great expectations with John, he did not live up to his professional word. He made a few errors which cost us penalties, missed the filing date and made promises to fix it all. Even now he has not contacted us to fix the many issues and we paid other accountants a great deal of cash to dig us out. While his demeanor up front was good, the end result was not. Disappointing. He never did respond to us. read more

What a nightmare!!! Do not put your taxes in the hands of this incompetent tax accountant! John prepared our taxes for 2012 and 2013, when we met in October 2015 to prepare our 2014 taxes I discovered through our conversation that he had not carried over the depreciation from my previous taxes. This had originally caused us to owe taxes which we paid, only to discover now that the money was not owed. Upon this discovery John accepted responsibility for his error and prepared amended returns at no cost. For that reason we had him prepare our 2014 return. He missed our extension deadline but assured me he would pay any fines that were assessed. After one month I called both the state and IRS to see if our return had been processed only to find out that he never sent the electronic filing. After contacting him regarding this issue he assured me that is was a "hiccup" in the system and that he would file them immediately. That was five days ago and they have still not been filed. Fortunately I have a paper copy and will be mailing them my self this morning. Although I have questions regarding the return itself. My husband and I are going to investigate whether he is even a licensed accountant and it he is we will be filing a complaint to the IRS and filing a legal action to have all our of money returned. I never write negative posts. But people should be aware of this level of incompetence when dealing with something as important as their taxes! read more