Williamson & Co PC

Williamson & Co PC

Reviews Summary

Williamson & Company receives overwhelmingly positive feedback for their professional, knowledgeable, and trustworthy tax services. Clients praise their responsiveness, long-term reliability, and expertise in both personal and business taxes, with many highlighting their ability to simplify complex financial matters. A few negative reviews cite billing issues, communication gaps, and rare errors, but the majority emphasize consistent competence, friendly staff, and exceptional support for startups and audits. The firm is widely recommended for its dependable, detail-oriented approach.

About This Listing

Bookkeeping
Accounting
Business Consulting
Financial Statements
Payroll
Tax Preparation
Tax Planning
Estate and Trust Tax
Small Businesses
Individual Taxpayers
Non-profits
Real Estate
Technology
Agriculture
QuickBooks
Multi-state Experience
Local Tax Credits

Who Can Work with a CPA?

Individuals seeking tax prep, retirement planning, or financial advice
Small business owners needing bookkeeping, payroll, or tax compliance
Freelancers and contractors with 1099 income or complex returns
Couples planning finances together or managing joint returns
Investors with capital gains or rental property income
Anyone looking for year-round financial guidance and peace of mind

*Note: CPAs may specialize in different areas. Be sure to check credentials and service offerings.*

First-Time Clients

If this is your first time working with a CPA, don’t worry — most professionals offer a free consultation and will walk you through what to expect. You may be asked to complete an intake form, share financial documents, or set clear goals for your session.

What to Know Upfront:

Documentation Bring your most recent tax returns, income details, and any financial concerns
Availability Appointments fill up quickly during tax season — book early if possible

*Note: Every CPA operates a bit differently. Don’t hesitate to ask questions before committing.*

What to Bring

Government-issued ID for verification
Tax documents (W-2s, 1099s, investment summaries, etc.)
Receipts or logs for deductible expenses, donations, or mileage

*Tip: Organize your documents in advance to save time and ensure accuracy.*

Preparing for Your Appointment

Write down any financial goals or questions in advance
Check if your CPA offers virtual sessions or document uploads
Bring a notebook or use a notes app for key takeaways
Know your deadlines for filing, payments, or compliance

*Note: Preparation helps you make the most of your CPA’s expertise.*

How to Get Started

Use our directory to find highly reviewed CPAs near you. Reach out directly to schedule your consultation.

Other Helpful Info

Many CPAs offer both in-person and remote consultations
Fees may be flat-rate, hourly, or based on service complexity
Some CPAs specialize in industries like healthcare, real estate, or tech
Check for client reviews and credentials (CPA license, EA, etc.)

*Note: Every CPA is different — take time to find one who fits your goals and style.*

Features

Bookkeeping
Accounting
Business Consulting
Financial Statements
Payroll
Tax Preparation
Tax Planning
Estate and Trust Tax
Small Businesses
Individual Taxpayers
Non-profits
Real Estate
Technology
Agriculture
QuickBooks
Multi-state Experience
Local Tax Credits

Contact Information

Address

400 McCaslin Blvd #205

Louisville, Colorado 80027

Hours

Sunday Closed
Monday 9AM-5PM
Tuesday 9AM-5PM
Wednesday 9AM-5PM
Thursday 9AM-5PM
Friday 9AM-5PM
Saturday Closed

Customer Reviews

I've called 4 times, and left two contact messages on their web site form and have no return calls in over 7 business days. Do they not have a receptionist? Is everyone out with the flu? Guess I shall go elsewhere.

The entire team, including Alan, always made themselves available and answered all questions thoroughly. They always responded same day, if it was a business day. As with any startup, I'm insanely business and I was admittedly slow getting them information and not once did they complain or get frustrated. Goska did my taxes and her customer service was superb. For that, I'll consider using them again. My biggest qualm, and the reason I docked a star, was I felt that they mislead on pricing. I'm a ten month

I have been working with Williamson & Co for the past 6 years and have nothing but positive things to say about my experiences with the group. I have worked primarily with Wendy, but also with Alan, and have been impressed with their responsiveness and attention to my personal tax-related needs, as well as any questions I have had. My tax returns are quite complex--I have to file in several different states each year--and over the years I have felt increasingly confident and comfortable with the process. I'

We have been clients at Williamson & Co. for over a decade, and are continually impressed with their level of service and expertise. Alan is incredibly dedicated, and the staff are genuinely friendly and helpful. They are particularly savvy with small business taxes, and we have used them to do payroll as well. They've helped us through audits and many other dealings with the IRS, making the whole process easy on us. There is an air of "don't worry, we'll take care of it" that I truly appreciate in all my d

Easily the worst experience I've had with a CPA. lack of communication aside, they over charge you for tax preparation. They do not review your taxes with you, instead tell you to review it for correctness. If I knew that, I wouldn't need a CPA! For business and personal tax preparation, I was charged over 2K! Never had that before. Constantly receive messages from the IRS about money owed and late fees. This place just isn't worth your time or money. Find someone who will actually do a good job and isn't

I've been using Williamson for my personal and corporate tax preparation for many years. They have a good team that is courteous and competent, and they've maintained the same quality of service as the company has grown. Alan is always available to answer my questions. And unlike other companies that I've dealt with, I don't get billed for asking questions, or requesting basic advice.

I have been a customer of Williamson and Co since 2003. Allan and his team are great to work with--they are always there to help me when needed. I've had instances to resolve with taxes and the IRS in the past and the team at Williamson have always come through for me to get the issue addressed to my satisfaction. I highly recommend their services--you won't be disappointed.

Williamson CPA and Kayla Asher have been handling my company payroll and taxes for 3 years. In addition, they also prepare my personal taxes. They have been a real pleasure to work with. Very friendly, professional, courteous and competent. Kayla is always happy to take the time to answer any question I throw at her. They make me feel comfortable and that I am a valued customer. I would highly recommend Kayla Asher and Williamson CPA to anyone.

Williamson & Company has been a pleasure to work with for over 10 years. They have been my accounting firm for my two companies and personal needs. I have referred my whole family to the firm. We appreciate his highly competent staff, professionalism and knowledge they bring to complex accounting matters. I highly recommend Williamson & Co.

Williamson & Co, has been instrumental in making all aspects of filing taxes an enjoyable experience. Alan and his employees are very professional and always have great attitudes, very easy to work and communicate with. We have referred several people to Williamson & Co and will continue to do so. I highly recommend Williamson & Co to anyone looking for great service. thanks again John Marrs and Candace Newlove

It has been a complete pleasure working with Alan Williamson and his team of professionals. We needed help forming and maintaining our corporation. They helped us set up our corporation and helped us work through many of the the tough matters new business owners go through. Working with Williamson & Co gives us confidence in our business knowing that we are covering all of our bases. We are grateful!

Williamson & Co has managed both our household and business taxes for the past 4 years. They are all wonderful to work with, organized, trustworthy, helpful, reasonably priced and communicate every step of the way.

I have been a client of Williamson and Co for a long time and have complete trust in how they handle my business and personal taxes. They are professional, timely and always available for questions. I would highly recommend Williamson and Co for any tax preparation or questions.

Kind, courteous, helpful, and responsive are the words I use to describe the service I have received from Willamson and Company for many, many years now. As an owner of a business we don't always know what the tax law is for certain transactions. The team at Williamson has consistently provided me and my partners with the latest information so we are in compliance. When we aren't, they are swift to make solid recommendations so our exposure to the taxing authorities are kept to a minimum. As with our corpo

Williamson & Co has been preparing both our personal returns and our S Corp returns for many years. I feel they do a competent job but I don't feel I get much tax advice during the process. I wish communications were more open.

Williamson and Company have done my business and personal taxes for about 10 years now. They take my piles of paperwork sort and organize it and prepare my taxes well. They also are super easy to work with and respond to emails and phone calls within a day usually even during high tax season. This company cares about you and your money. I moved from Colorado to Minnesota and they still do my taxes because I like working with them.

We are very pleased with Williamson&Co as they have smoothly handled both our personal and business accounts for the last 5 years and counting. The team has been extremely competent in advising and helping administrate our company as it evolved from a small startup into a viable business.

My companies have worked with Alan and his team since our business began. They have been most helpful in offering advice and direction for corporate financial questions as well as preparing and filing all our required forms. I have to do very little work to meet their requirements for filings and submissions. They are highly responsive and persistent in accomplishing needed tasks. I would recommend them highly.

I own a bookkeeping practice and Williamson & Company does the tax preparation for several of my clients. Williamson & Company is a valuable resource for my practice all year long. I will turn to Alan and his staff - especially Wendy & Kayla - whenever I have questions about the tax implications of a transaction. They always respond quickly and take the time to explain how the transaction should be recorded as well as the 'why'. Recently one of our mutual clients had a complicated taxable event with mul

Williamson & Co have been incredibly helpful and efficient for our company. They are always available for questions and help us through difficult times. We have complicated tax returns and we could not have gotten everything done without their help.

We have been working with Williamson & Co for years. They have provided sound advice, accounting and tax services for some complex real estate as well as company organization issue. We highly recommend Alan and his staff.

We had our taxes done by this company for many years - since the company was purchased from the previous owner - until last year. Whereas the completion of our tax returns was excellent and the level of service was very professional, we had a HUGE issue with the cost of our returns. The price escalated by huge leaps and bounds each year. This, in itself, was unreasonable, but it was particularly irritating because we never got a straight answer regarding how the cost was determined and never got a reason

Alan and Wendy at WIlliamson & Co. have been preparing our tax returns for several years. We have been very pleased with their knowledge, professionalism and responsiveness. Due to our real estate holdings, our return is very long and complicated and we appreciate their extensive knowledge about the tax implications of rental properties.

Williamson and Company PC a name I can trust. For years now they have provided excellent guidence as well as fast and accurate service for my personnel and Business financial needs. My Tax can be complex and Williamson and Company takes the time to do an accurate job and I appreciate that. Thank you!

Master scammers. I have been doing my taxes for over 20 years, and have NEVER dealt with the incompetence, unprofessionalism, and exorbitant costs that we dealt with working with this company. For our tax preparation alone, we were charged $4,500 (business & personal) when we had never previously paid more than $2,000 in a year for tax preparation. As if the costs weren't outrageous enough, there were multiple mistakes with a clear lack of communication/documentation internally. We received multiple letters

We love working with Alan and his team at Williamson & Co PC. Whether it's setting up a new business or managing our existing ones, Alan and his team give us the confidence that we are doing things right and take the worries away. Thanks Williamson & Co PC for having our backs and always being there for us!

Top notch service, friendliness, kept me informed. I sold 3 pieces of real-estate, converted some investment, and they straightened out a complex income-tax mess I had. Made something that was understandable. THANK YOU SO VERY MUCH, Steven Burr

We have been having our taxes prepared by Alan and his team for many years. As our company has grown and our business and personal tax returns have become more complicated, including the recent sale and acquisition of properties through a 1031 exchange, their assistance has been invaluable. I believe in them and have referred many of my clients to them for guidance. Rick Staufer, Owner/Associate Broker, Staufer Team Real Estate

I had my taxes done for 2013 here. My taxes aren't too complicated; some investments and interest earnings really. I know as much about taxes as a high school government student, so when they returned my taxes to me and told me how much I owed, I was willing to believe them. It seemed like way too much, even to me, so I glanced through everything. It took me 10 seconds to see that they had added a large sum under taxable income that should not have been there. There was a large amount added in my previ

Alan and his staff have been a critical part of our business over the years. They help us with both our personal and business returns. They are also always available to help our clients when they have questions outside my area of expertise. Greg Smith Broker/Owner RE/MAX Alliance.

Wendy Johnston with Williamson & Co has done our taxes for several years. Wendy is very thorough and patient as we gather our information. We are happy to return to Williamson & Co and Wendy Johnston every year for our tax needs.

Experienced what it looks like many others did unfortunately, they even shared another clients social security numbers with me on accident which was rather shocking. Constantly billed me for hours but nothing got done it felt like. I left the office each time more unclear on what next steps where. I wouldn't recommend using them for any small business tax help!

Being a new software startup, I didn?t know what to expect for first year tax obligations. Williams & Co.?s knowledgeable and personable staff provided me with professional filings - both business and personal; huge savings; ample management advice; and really made this year?s tax filing a complaisant experience.

My husband and I have been working with Williamson & Co / Wendy Johnston for many years. We have found them to be professional, knowledgeable, and a pleasure to work with. We would highly recommend them.

Our company has been working with Kayla Asher on various accounting items. She has been very helpful in explaining questions in detail no matter how small. Kayla has an outgoing and friendly demeanor and is a fun to work with.

Kayla is the best CPA we have ever worked with. She is knowledgeable, polite and a super positive person. I can not recommend this firm enough.

I was very impressed with the quality of the work and the timeliness in which they were able to process my request. I would highly recommend Williamson & Co PC to anyone. Extremely responsive and professional.

Alan has been such a resource to us as a family and business. With a disabled daughter his advice has been invaluable in helping us plan and stay in the lines where federal regulations are involved. Thanks Alan!

Williamson & Company is a knowledgeable firm that has done a good job with our business taxes for several years now.

Alan, Gayle and Kayla make a great team for bookkeeping and tax preparation needs, we have used them for many years and plan to continue.

The folks at Williamson are real neighbors, they are quick to return calls and always go that extra bit to help work out the details that seem to be so complicated! Just about like Family!

Quick, attentive and personable. We will definitely be using Williamson & Co PC for future accounting needs and would recommend them to anyone.

Always prompt, professional and pleasant. One thing to look forward to in tax season is working with Wendy and the team at Williamson.

We've had great experiences working with both Kayla and Alan. Very happy with the work they've done for us.

Williamson & Co did a phenomenal job working through my return and specifically the Options I exercised in 2015.

Always a good experience - I am confident that they do the absolute best they can for us every single year. Long term staff, easy access and responsive to every request.

I have worked with this company for many years. They do my personal and business taxes, tax planning and bookkeeping. They are very knowledgeable and professional.

Williamson and team are always there for us and help keep our business running smoothly!

This is a wonderful company - as well as extra-wonderful people that woked right by my side through some very difficult and personal matter. Everyone gets my highest marks...

Was very welcoming and asked plenty of questions and timing did not seem to be an issue. Very pleasant to work with.

Very professional. Proactive communication. Great people and great company.

Very nice office - very easy to work with - knowledgeable and professional

Alan answered our questions clearly and thoroughly and also gave the extra effort to answer follow-up questions by phone.

Scam, don?t do work with Alan.

Great team and great company!

Professional, knowledgeable, experienced and trustworthy.

Frequently Asked Questions

What qualifications should I look for in a CPA?

Look for a Certified Public Accountant (CPA) license, which ensures they’ve passed rigorous exams and meet state requirements. Check for relevant experience in your industry, additional certifications like CFA or CMA, and membership in professional organizations like the AICPA. Verify their credentials through state licensing boards.

How do I find a CPA in my area?

Use online directories like the AICPA, CPAverify, or state CPA societies. Search platforms like Yelp or Google for local CPAs with reviews. Ask for referrals from business associates, friends, or financial advisors. Local chambers of commerce can also provide recommendations.

What’s the difference between a CPA and an accountant?

A CPA is a licensed professional who has passed the CPA exam and met state requirements for education and experience. An accountant may lack this certification and could have varying levels of expertise. For complex tasks like tax audits or financial reporting, a CPA is typically more qualified.

How do I know if a CPA specializes in my needs?

Ask about their experience with your specific financial needs, such as tax preparation, small business accounting, or estate planning. Review their website or LinkedIn for case studies or client testimonials. Inquire about their client base to ensure they handle similar financial situations.

Should I check a CPA’s reviews before hiring?

Yes, reviews provide insight into a CPA’s reliability, communication, and performance. Check platforms like Google, Yelp, or the Better Business Bureau for client feedback. Look for patterns in reviews, but verify their authenticity, as some may be biased or outdated.

How can I verify a CPA’s license?

Visit your state’s Board of Accountancy website or use CPAverify.org to check a CPA’s license status. Confirm their license is active and check for any disciplinary actions or complaints. This ensures they’re in good standing and meet professional standards.

What questions should I ask during a CPA consultation?

Ask about their experience with your financial needs, fee structure, availability, and communication style. Inquire how they handle tax filings, audits, or financial planning. Ask for references or examples of similar work to assess their expertise and fit.

How much should I expect to pay for a CPA’s services?

Fees vary based on location, services, and complexity. Basic tax preparation may cost $150-$500, while business accounting or audits can range from $1,000 to $10,000+. Request a detailed fee structure upfront and compare quotes from multiple CPAs.

Can I work with a CPA remotely?

Yes, many CPAs offer remote services through secure online platforms for document sharing and virtual consultations. Ensure they use encrypted tools for data security. Remote CPAs can be effective if they understand your local tax laws or business regulations.

How do I assess a CPA’s communication skills?

During consultations, evaluate their ability to explain complex financial concepts clearly. Ask sample questions about taxes or financial strategies and note their responsiveness and clarity. Good communication ensures you understand their advice and fosters a productive relationship.

What red flags should I watch for when screening a CPA?

Beware of CPAs who guarantee specific tax refunds, lack a valid license, or have disciplinary actions on record. Avoid those with poor communication, vague fee structures, or negative reviews highlighting unethical behavior. Always verify their credentials independently.

Should I choose a CPA from a large firm or a solo practitioner?

Large firms offer more resources and specialized teams but may charge higher fees. Solo practitioners often provide personalized service and lower costs but may have limited availability. Choose based on your needs, budget, and preference for personalized attention.

How often should I meet with my CPA?

For individuals, annual meetings for tax preparation may suffice. Businesses may need quarterly or monthly check-ins for bookkeeping, tax planning, or financial reporting. Discuss your needs upfront to establish a meeting schedule that aligns with your financial goals.

Can a CPA help with both personal and business finances?

Yes, many CPAs handle both, but confirm their expertise in both areas. Ask about their experience managing personal taxes and business accounting simultaneously. Ensure they can balance both without compromising attention to your specific financial needs.

What should I do if I’m not satisfied with my CPA?

Discuss concerns directly with your CPA to resolve issues. If unresolved, check your contract for termination terms. Seek a new CPA by researching reviews, credentials, and referrals. Request your financial records to ensure a smooth transition to a new professional.

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