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MINIMIZE YOUR TAX LIABILITY.

Consider us your external tax department.

What we do

We understand that each individual and business has unique needs. As an added benefit, we are available to answer your questions and help with your ongoing tax planning and changing business needs.

Tax Planning | Tax Preparation | IRS Tax Problem Resolution | Business Consulting

Who we are

Taxvantage Advisors, LLC., located in O Fallon, MO, is a full-service, tax preparation firm focusing on small business and personal IRS taxation. We offer a broad range of services for business owners, executives, and independent professionals. We are affordable, experienced, and friendly.

Please call us today at (636) 379-1500 - we'll be happy to offer you a free initial consultation. Thanks for visiting!

Our Mission

We promise to be responsive to your every move. We never lose sight to what really makes us valuable to you as a client, our genuine expertise.

Taxvantage Advisors, LLC. has evolved into a successful tax preparation firm by providing the kind of support you may not find in other tax accounting firms.

We genuinely care about making life easier for our clients. So you can spend more time doing what you love, while we handle the rest.

Get Started

What Can We Help You With Today?

Our team of tax professionals is here to help you navigate the complex world of tax laws and ensure that your situation is optimized to meet your goals. Check out the list of services we can offer and then reach out to us to get started.

What Type of Appointment Would Work Best For You?

If you need a tax planning & tax preparation service that fits your time constraints and busy schedule, then Taxvantage Advisors can make it easy by giving you options.

Our Clients Have Some Great Things To Say About Us!

Pauline M.

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Cara F.

I've been going to the Richardson's over 16 years. They are all always trustworthy and very knowledgeable. I am always kept up to date with new rules/laws the IRS may have from year to year. I know I can always count on Richardson's Pro Tax for prompt and friendly service. They're always will to help and answer questions which is such a plus. Thank you to the Richardson's for being the best people around! Highly recommended!
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Cynthia F.

I have had my taxes prepared by Richardsons for the last 3 years. I am very happy with them and would recommend them to any of my friends and family. They do it right and are the most reasonable tax preparers I know.
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Valerie W.

Wonderful place to go.and get your tax return done.the owners are very kind. and helpful.i would recommend this company to others.
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Joan G.

I have had the pleasure of working with these awesome professionals for 4 years and will continue to have them do my taxes. They are very pleasant and welcoming as I walk in the door. Great work Richardsons Pro Tax!!
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Valerie W.

very nice place to get your tax returns done. If family is nice very helpful I would recommend this company to my friends and family you guys are awesome
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Katie K.

My mom has been going to Richardson pro tax since I was a kid, still do today. Once I started working as teen I been going to him and still do. It's family business you can feel the love and good energy. Today as I'm married with kids my husband and I go and we sit down with rob and he does what he can for you . We have been happy and I recommend them to family and friends.
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Tameka T.

I been going to Richardson for the pass 18 plus years. I love the service my family and I receives.
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Jasmine J.

have been going through this company since 2010 to file my taxes, my mom referred me to this family and have been going though them for years. Staff is very friendly and knowledgeable. I have never had a compliant always walked away a satisfied customer. They are like an extended family that you look forward to seeing and communicating with
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William R.

Rob does a great job, professional and always gets things done in a timely manner. We have recommended him to all our friends and family and several of them use him.
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Joan M.

I received excellent service and will highly recommend him to friends and family.
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AMANDA S.

Unparalleled service and results! RJ far surpassed my highest expectations. He most definitely knows the business and how to clearly communicate with clients so that they are in the know every step of the way!
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Tameka T.

I love working with the Richardsons family. For the pass 18yrs they did an phenomenal job with my taxes. See you guys next year.
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Jasmine J.

have been going through this company since 2010 to file my taxes, my mom referred me to this family and have been going though them for years. Staff is very friendly and knowledgeable. I have never had a compliant always walked away a satisfied customer. They are like an extended family that you look forward to seeing and communicating with
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Mandy M.

Couldnt speak more highly about Rob amp the excellent work he does! Loyal, knowledgeable, amp attentive- with meticulous attention to detail. I will continue to use Rob amp refer Richardsons to everyone I know.
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Rich/Donna M.

This is the second year we have chosen TAXVANTAGE ADVISORS LLC., to do our taxes. We consider them to be very knowledgeable and trustworthy. They can be sure we will be bringing our taxes back to them again next year!
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Lisa S.

Awesome experience as always! Wonderful to work with Rob! We will be life long customers!!!
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fred P.

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Katie O.

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Brandon O.

Excellent service!
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Jon M.

The Richardson's will be the only place you'll have your taxes done for now on if you give them a shot. Great at what they do!
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Jim R.

They deliver actual results here. Why deal with some 1-800 number when you can see these people face-to-face and get the assistance you need? Also, they will help you no matter how much you owe taxing agencies. Most national referral services only handle debts above $10,000 because anyone with less isn't so desperate to pay their crazy fees!
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Nick J.

Professional, courteous, made getting our taxes much easier! Have used Richardsons many times in the past and will continue to do so.
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joseph R.

Very professional and dedicated. You will get great service and they dont drag their feet which is great. You wont be disappointed if you pick richardsons pro tax
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Jeremy L.

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Kenzie B.

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Chris N.

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Trinity S.

They have been doing my taxes for over 10 years. Highly recommend them.
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Rudy G.

Well pleased with service 5 stars
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Angela S.

This is a family business, not a corporate pop-up. The level of professionalism and sometimes brutal honesty (Pam😇), is what this business was founded on. Over 30yrs of providing my family with their services. Our hearts, prayers and business will always be with you.
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Sally B.

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Kelly H.

We have been with Richardson's tax family for over 15 years. They have helped us with all of our financial changes and challenges. Now they take care of our son. I will never go back to a fast food tax service. Having a tax pro in our corner has made a huge difference.
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Deborah’s A.

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Laura M.

Knowledgeable and efficient, a great experience all around.
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CHERIE N.

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JB B.

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Taylor M.

Super friendly and fast service!
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Chris G.

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Kaycee B.

Very fast, efficient, and made my best interest a main priority. Thank you Rob for the perfect service.
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Thomas M.

I've been using Richardsons Tax Service since 2000, and every year since that time. I'm left with a sense of confidence and peace of mind, that it will be taken care of, efficiently, correctly, and in a timely manner. This family lives and breathes tax returns. It doesn't matter which member of the family is entrusted with doing your personal taxes. Rest assured it will be done correctly and at a reasonable rate. If I could give more than 5 stars I would. Trust all your tax affairs to Richardsons....You'll thank yourself in the long run.
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Sarah B.

Rob is very friendly/personable, has flexible hours, and works on getting the most back possible with your return. You wont be disappointed!
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Mark C.

I have been with this company for over 20 years and they always do a great job. Rob has recently taken over and has done a wonderful job as well. He had everything finished in a couple days and I can’t be happier with his service. I will continue to use them and recommend them to friends and family.
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Joan R.

They are always friendly and do the best for you. I have been using them for about 20 years and you go back to people who you trust.
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Kenny L.

Have been going to Richardson Pro Tax for years now great service always ready to lend a helping hand.
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Katherine F.

Very diligent and quick to answer questions and send documents. Highly recommend!
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Judy H.

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Debbie R.

We have had our taxes prepared here for many years, and even our extended family use them. Very thorough and have never had any issues with how our taxes and privacy was handled. Highly reccomend Rob and Richardson's Pro Tax Service.
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Alexis J.

Richardson tax service is a very professional and trust worthy and dependable tax service. I been filing with them over 8 years got introduced to them through my mom, who been with them over 40 years. Every year I get nothing but the best service. Fast and very excellent work will recommend to anybody!!
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Harriett J.

Very trust worthy and dependable tax services. I being filing with Richardson tax service over 40 years.
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Amy Y.

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Josh C.

I've always had a good experience with this company. They are more than willing to help with any questions no matter what time of the year.
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Mr G.

Could not have asked for a more simple return ! Thanks Rob !
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Mz A.

Richardson Pro Tax is the best place to get your taxes done and the correct way. I was referred to them by my grandmother 20 yrs ago and I haven't turned away since. I was in tax trouble when I first went to them. They saw the problem, told me what I needed to do and prepared me so when each year came I didn't have to owe. Their customer service is always on point. I referred family and friends and they too are satisfied. Even though I've moved to a different state, they still prepare my taxes each year. When it comes to them, I trust them completely. They will always be my tax family. 🤗
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Glenn M.

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Morgan B.

Have been using this service for years, if I could give them 10 stars I would. Always courteous and they go out of there way. Love love love
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Venus P.

I have been going through this company since 2010 to file my taxes, my mom referred me to this family and have been going though them for years. Staff is very friendly and knowledgeable. I have never had a compliant always walked away a satisfied customer. They are like an extended family that you look forward to seeing and communicating with.
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Kelly M.

Awesome supper friendly and really great service
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Joe A.

Incredible service! I will be doing business here again. Very knowledgeable people.
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Matt K.

I've been doing business with Richardson's Pro tax for more than ten years now, and I plan to continue into the foreseeable future. The service has always been great! I've always felt a great family vibe working with everyone there.
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Katie K.

My mom has been going to Richardson pro tax since I was a kid, still do today. Once I started working as teen I been going to him and still do. It's family business you can feel the love and good energy. Today as I'm married with kids my husband and I go and we sit down with rob and he does what he can for you . We have been happy and I recommend them to family and friends.
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david M.

Great Family Business!
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sherrell J.

I've been a customer for almost 10 years now and I am sad to see a couple of bad reviews for this company. Although, I've only worked in direct connection with Rob I can attest to his character and professionalism. He is personable, professional, and I haven't had any issues with any of my returns they've prepared. The preparation price is a little steep only in comparison to others I know who do their returns online themselves, but I'm not confident enough to do them on my own and to me the price is fair. I use to go to their office off Lewis and Clark, then the New Town location, but can't travel the distance any longer. I e-mail all of my documents to Rob and there is usually a response back in a day or two and completed no longer than a week. I love how everything is so conveniently done through email exchange, organized, and great response times. Rob certainly makes it easy!
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patrick S.

very nice people great with taxes and help you with any questions or problem you may have.
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William A.

They are the best at what they do...hands down! Thanks guys
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Emily S.

Used them for the first time and was well pleased. They found quite a bit more on our tax return than we had ourselves with an online program.
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CALL

(636) 379-1500

TEXT

(636) 379-1500

EMAIL

info@taxvantageadv.com

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