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5 (55 Reviews)

Small Business Tax Preparation Services in Thornton

Stay ahead of deadlines with small business tax preparation tailored for Thornton owners who need accurate books, organized filings, and fewer surprises. Sound Advice Bookkeeping helps you prepare for quarterly estimates, annual returns, and Colorado tax obligations with practical support that keeps your finances clear and your business moving.

Small business tax preparation consultation

Our Tax Preparation Services

Focused tax and bookkeeping support that helps Thornton small businesses stay compliant, organized, and prepared year-round.

Tax Preparation

Prepare for quarterly estimated taxes and annual filings with organized records, timely support, and guidance designed to help small businesses avoid penalties and interest.

Sales Tax Filing

Manage sales tax payments and filing requirements with accurate tracking and dependable processing to support ongoing compliance for Colorado small businesses.

1099 Filing

Handle year-end contractor reporting with 1099 filing support that helps your business meet IRS requirements and stay ready for tax season.

Expense Categorization

Organize and code expenses correctly so deductions are easier to identify, records stay clean, and tax preparation becomes faster and more accurate.

Financial Statements

Get clear balance sheets, income statements, and cash flow reports that support tax preparation and give you a better view of business performance.

Monthly Bookkeeping

Keep your books current throughout the year so tax filings are less stressful and your business has reliable financial data when deadlines approach.

Year-Round Readiness

Tax Preparation Built for Small Businesses

Small business tax preparation works best when your books are accurate long before filing deadlines arrive. Sound Advice Bookkeeping helps Thornton businesses organize records, prepare for quarterly estimates, and stay ready for annual returns, sales tax obligations, and contractor reporting. With Colorado-based experience and bookkeeping support behind the numbers, clients gain clearer financial visibility and fewer last-minute tax season problems.

Bookkeeper preparing small business tax documents
Trusted By Businesses

Success Stories

See why small businesses rely on Sound Advice Bookkeeping for organized, tax-ready financial support.

"I own a small business. After having sub-par experiences with prior bookkeeping services, I went with Sound Advise and have been with them for the last couple of years. Their service is outstanding and their pricing is below anything else I found. My bookkeeper, Beth, was very knowlegable and terrific..."

Bob O'Day
Bob O'Day

"I really appreciate the help we got setting up QuickBooks for our very small business. I feel like a pro now and can easily prepare my books for tax purposes and our own planning and evaluation. Thank you Sound Advice Bookkeeping!"

Ellyn Hutt
Ellyn Hutt

"If you have bookkeeping needs for a small business and you want a team that is patient, detail oriented, solution focused ......This is the team you want to work with! They have exceeded our needs and expectations and are truly a joy to work with."

Danielle Gentry
Danielle Gentry

"Jason and the entire Sound Advice team have been wonderful to work with. We were under a time pinch with an upcoming board meeting and our bookkeeper, Anna, was able to provide all necessary financials right on time. They are very responsive to communication and really care about their customers...."

Nicole Barbera
Nicole Barbera

"I had a positive experience with Sound Advice. The whole process went extremely smooth. Jason found a great job for me that was a good fit. I would recommend friends to contact him in their job search!"

Melissa Marie
Melissa Marie

"As a small business, we needed some help getting our bookkeeping in order. We reached out to Sound Advice Bookkeeping and they are fantastic! They helped us streamline things with QuickBooks. If you are in the market for a reliable bookkeeping service we would recommend Sound Advice Bookkeeping."

Colorado Platform Tennis Association
Colorado Platform Tennis Association

"I'm so happy to give a review for Sound Advice. The team is absolutely incredible. Hardworking and provides accurate information. Love working with them."

Kyrie Sanchez
Kyrie Sanchez

"I wish I had hired them earlier into running my business and not years after doing the work myself. It’s great having all of my bookkeeping reliably done so I can focus more on what my business is about."

Sean Hawkins
Sean Hawkins

"Great experience working with Jason and crew at Sound Advice. Solid leadership who goes above and beyond for their consultants."

Joe Paulson
Joe Paulson

"I want to let everyone know that we are so happy that we found Sound Advice Bookkeeping. It allows us to do our job and they take care of our money flow and prepare everything for our CPA. It takes the stress out of my late nights and allows me..."

Cynthia Nelson
Cynthia Nelson

"Jason and his team are true professionals in the business."

E. Miller
E. Miller

"We had a great experience with Sound Advice; very easy to scale and flex their services for the needs of your business."

Kate Wessels
Kate Wessels

"I can't recommend working with Sound Advice Bookkeeping enough! The entire team is so customer focused, going above and beyond consistently. Anna was my main bookkeeper for years and I honestly couldn't have run my business without her and Jason's support (and handholding when necessary!). They are truly the top..."

Chelsea Hayzlett
Chelsea Hayzlett

"The Sound Advice Bookkeeping team has time and time again demonstrated par excellence with those that I have referred to them. The feedback that I have gotten from my clients and prospective clients is that the work is detailed and thorough. If you are in need of a boutique bookkeeping..."

vidal peoples
vidal peoples

"After researching bookkeepers for months, I finally decided to call Sound Advice Bookkeeping (SAB). The owner Jason was extremely responsive, knowledgeable and helpful setting me up with the perfect bookkeeper for my individual and business needs. My bookkeeper, Anna, has been terrific and so easy to work with from the..."

Tara Slidell
Tara Slidell

"I own a small business. After having sub-par experiences with prior bookkeeping services, I went with Sound Advise and have been with them for the last couple of years. Their service is outstanding and their pricing is below anything else I found. My bookkeeper, Beth, was very knowlegable and terrific..."

Bob O'Day
Bob O'Day

"I really appreciate the help we got setting up QuickBooks for our very small business. I feel like a pro now and can easily prepare my books for tax purposes and our own planning and evaluation. Thank you Sound Advice Bookkeeping!"

Ellyn Hutt
Ellyn Hutt

"If you have bookkeeping needs for a small business and you want a team that is patient, detail oriented, solution focused ......This is the team you want to work with! They have exceeded our needs and expectations and are truly a joy to work with."

Danielle Gentry
Danielle Gentry

"Jason and the entire Sound Advice team have been wonderful to work with. We were under a time pinch with an upcoming board meeting and our bookkeeper, Anna, was able to provide all necessary financials right on time. They are very responsive to communication and really care about their customers...."

Nicole Barbera
Nicole Barbera

"I had a positive experience with Sound Advice. The whole process went extremely smooth. Jason found a great job for me that was a good fit. I would recommend friends to contact him in their job search!"

Melissa Marie
Melissa Marie

"As a small business, we needed some help getting our bookkeeping in order. We reached out to Sound Advice Bookkeeping and they are fantastic! They helped us streamline things with QuickBooks. If you are in the market for a reliable bookkeeping service we would recommend Sound Advice Bookkeeping."

Colorado Platform Tennis Association
Colorado Platform Tennis Association

"I'm so happy to give a review for Sound Advice. The team is absolutely incredible. Hardworking and provides accurate information. Love working with them."

Kyrie Sanchez
Kyrie Sanchez

"I wish I had hired them earlier into running my business and not years after doing the work myself. It’s great having all of my bookkeeping reliably done so I can focus more on what my business is about."

Sean Hawkins
Sean Hawkins

"Great experience working with Jason and crew at Sound Advice. Solid leadership who goes above and beyond for their consultants."

Joe Paulson
Joe Paulson

"I want to let everyone know that we are so happy that we found Sound Advice Bookkeeping. It allows us to do our job and they take care of our money flow and prepare everything for our CPA. It takes the stress out of my late nights and allows me..."

Cynthia Nelson
Cynthia Nelson

"Jason and his team are true professionals in the business."

E. Miller
E. Miller

"We had a great experience with Sound Advice; very easy to scale and flex their services for the needs of your business."

Kate Wessels
Kate Wessels

"I can't recommend working with Sound Advice Bookkeeping enough! The entire team is so customer focused, going above and beyond consistently. Anna was my main bookkeeper for years and I honestly couldn't have run my business without her and Jason's support (and handholding when necessary!). They are truly the top..."

Chelsea Hayzlett
Chelsea Hayzlett

"The Sound Advice Bookkeeping team has time and time again demonstrated par excellence with those that I have referred to them. The feedback that I have gotten from my clients and prospective clients is that the work is detailed and thorough. If you are in need of a boutique bookkeeping..."

vidal peoples
vidal peoples

"After researching bookkeepers for months, I finally decided to call Sound Advice Bookkeeping (SAB). The owner Jason was extremely responsive, knowledgeable and helpful setting me up with the perfect bookkeeper for my individual and business needs. My bookkeeper, Anna, has been terrific and so easy to work with from the..."

Tara Slidell
Tara Slidell

"I own a small business. After having sub-par experiences with prior bookkeeping services, I went with Sound Advise and have been with them for the last couple of years. Their service is outstanding and their pricing is below anything else I found. My bookkeeper, Beth, was very knowlegable and terrific..."

Bob O'Day
Bob O'Day

"I really appreciate the help we got setting up QuickBooks for our very small business. I feel like a pro now and can easily prepare my books for tax purposes and our own planning and evaluation. Thank you Sound Advice Bookkeeping!"

Ellyn Hutt
Ellyn Hutt

"If you have bookkeeping needs for a small business and you want a team that is patient, detail oriented, solution focused ......This is the team you want to work with! They have exceeded our needs and expectations and are truly a joy to work with."

Danielle Gentry
Danielle Gentry

"Jason and the entire Sound Advice team have been wonderful to work with. We were under a time pinch with an upcoming board meeting and our bookkeeper, Anna, was able to provide all necessary financials right on time. They are very responsive to communication and really care about their customers...."

Nicole Barbera
Nicole Barbera

"I had a positive experience with Sound Advice. The whole process went extremely smooth. Jason found a great job for me that was a good fit. I would recommend friends to contact him in their job search!"

Melissa Marie
Melissa Marie

"As a small business, we needed some help getting our bookkeeping in order. We reached out to Sound Advice Bookkeeping and they are fantastic! They helped us streamline things with QuickBooks. If you are in the market for a reliable bookkeeping service we would recommend Sound Advice Bookkeeping."

Colorado Platform Tennis Association
Colorado Platform Tennis Association

"I'm so happy to give a review for Sound Advice. The team is absolutely incredible. Hardworking and provides accurate information. Love working with them."

Kyrie Sanchez
Kyrie Sanchez

"I wish I had hired them earlier into running my business and not years after doing the work myself. It’s great having all of my bookkeeping reliably done so I can focus more on what my business is about."

Sean Hawkins
Sean Hawkins

"Great experience working with Jason and crew at Sound Advice. Solid leadership who goes above and beyond for their consultants."

Joe Paulson
Joe Paulson

"I want to let everyone know that we are so happy that we found Sound Advice Bookkeeping. It allows us to do our job and they take care of our money flow and prepare everything for our CPA. It takes the stress out of my late nights and allows me..."

Cynthia Nelson
Cynthia Nelson

"Jason and his team are true professionals in the business."

E. Miller
E. Miller

"We had a great experience with Sound Advice; very easy to scale and flex their services for the needs of your business."

Kate Wessels
Kate Wessels

"I can't recommend working with Sound Advice Bookkeeping enough! The entire team is so customer focused, going above and beyond consistently. Anna was my main bookkeeper for years and I honestly couldn't have run my business without her and Jason's support (and handholding when necessary!). They are truly the top..."

Chelsea Hayzlett
Chelsea Hayzlett

"The Sound Advice Bookkeeping team has time and time again demonstrated par excellence with those that I have referred to them. The feedback that I have gotten from my clients and prospective clients is that the work is detailed and thorough. If you are in need of a boutique bookkeeping..."

vidal peoples
vidal peoples

"After researching bookkeepers for months, I finally decided to call Sound Advice Bookkeeping (SAB). The owner Jason was extremely responsive, knowledgeable and helpful setting me up with the perfect bookkeeper for my individual and business needs. My bookkeeper, Anna, has been terrific and so easy to work with from the..."

Tara Slidell
Tara Slidell
The Sound Advice Difference

Why Choose Sound Advice Bookkeeping?

Thornton businesses choose a team that combines bookkeeping accuracy with practical business insight.

Proven Experience

Serving small businesses since 2007 with systems built for accurate records and smoother tax preparation.

Local Insight

Based in Denver and serving Thornton, the team understands Colorado filing rhythms and regional business needs.

Structured Process

A 3-phase approach helps clean up books, assess needs, and support ongoing tax-ready reporting.

Strategic Support

Beyond forms and deadlines, clients get guidance that improves cash flow visibility and financial decision-making.

Meet The Thornton Team

Experienced advisors supporting small business financial clarity.

Jason M. Hill

Founder, MBA, PMP, CSM

Jason M. Hill has spent more than 20 years helping small and midsized businesses identify the real issues affecting growth, profitability, and operational efficiency. As founder of Sound Advice Bookkeeping, he brings a practical, problem-solving mindset to financial systems, business processes, and tax readiness. His background includes a BA in Political Science from the University of Massachusetts Amherst and an MBA from Baruch College. Jason is also a Certified Project Management Professional and Certified Scrum Master. Clients value his ability to connect bookkeeping accuracy with broader business performance, helping owners move from uncertainty to informed decision-making. His leadership has helped shape a boutique firm focused on customized support, clear expectations, and dependable service for growing businesses.

Dr. Ali Hill

Managing Partner

Dr. Ali Hill is a business leader and managing partner known for building strong organizational infrastructure and effective processes. Over the past two decades, she has led non-profit organizations and supported business growth through data-informed decision-making, operational design, and strategic planning. Her academic background includes degrees from Tufts University, Columbia University, and a PhD in Sociology from The Graduate Center at CUNY. At Sound Advice Bookkeeping, she helps shape systems that support sustainable growth for startups and small to midsized businesses. Clients benefit from her thoughtful approach to process improvement, leadership, and long-term business health. Her experience adds depth to the firm's ability to support companies that need more than basic bookkeeping and want stronger financial and operational foundations.

Chris Gibson

Senior Controller/Bookkeeper

Chris Gibson brings more than 15 years of experience helping clients improve bookkeeping workflows, understand QuickBooks more effectively, and build stronger day-to-day financial habits. Known for his empowering teaching style, Chris helps business owners gain confidence in the systems behind their books rather than simply handing over reports. He earned his Bachelor of Fine Arts from New York University and combines creativity with a sharp eye for functionality and process improvement. At Sound Advice Bookkeeping, he supports clients with practical solutions that make bookkeeping more useful, organized, and actionable. His work helps businesses prepare for tax season with cleaner records, better reporting, and fewer avoidable issues. Clients appreciate his ability to explain financial processes clearly and uncover efficiencies they may have overlooked.

Frequently Asked Questions

What is included in small business tax preparation services?

Small business tax preparation typically includes organizing financial records, reviewing income and expenses, preparing for quarterly estimated taxes, supporting annual tax filings, and identifying missing documentation that could delay filing. At Sound Advice Bookkeeping, tax preparation is also supported by bookkeeping services such as reconciliations, expense categorization, financial statements, and sales tax tracking so your records are cleaner before deadlines arrive.

Do you help with quarterly estimated tax payments?

Can you help my business avoid IRS penalties?

Do you prepare sales tax filings for Colorado businesses?

Can you file 1099s for contractors and vendors?

Do I need bookkeeping before tax preparation?

How much do your tax preparation-related services cost?

What types of businesses do you work with?

Still Have Tax Questions?

Talk with our team about filings, deadlines, and tax-ready bookkeeping support.

Areas We Serve

Supporting small businesses across Thornton and surrounding Denver-area communities with remote and hands-on bookkeeping guidance.

Thornton & Denver Metro

Service Area

Since 2007

Business Experience

1,000+ Small Businesses

Businesses Helped

Need Service In Your Area?

Ask if your business location is within our service coverage.

Certified & Trusted

Awards and Recognition

PMP certification logo

PMP Certified

Project leadership and process expertise.

CSM certification logo

CSM Certified

Agile systems and workflow knowledge.

5-star rating badge

5-Star Google Rating

Trusted by local business clients.

Get Reliable Tax Preparation Support

Tell us about your business, current bookkeeping, and upcoming tax deadlines. Our team will help you understand the next best step.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 303.228.8911. You can also send us a quick email at info@soundadvicebookkeeping.com