Trusted Accounting and Tax Services
“Exceptional customer service combined with the knowledge necessary to complete and file taxes for anyone.”
Best Tax Preparation Services in Thornton, CO
15 companies listed · 7 in Thornton · 5 open weekends · 13 rated 4.5+
Data verified October 18, 2026
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5 Stars Taxes By Angela Valencia
“Excellent professional, very kind, it helped us a lot that she was for my first statement, I hope to have her for many more years, I recommend her 1000%”
Balanced Ledgers
“He was able to fix all the mistakes another bookkeeper made on my late fiance's estate taxes.”
Latinos Tax & Multiservice
“Fixed my taxes quickly and helped start a resolution to my previous years tax problem.”
America Latina Taxes
Smartax Service
“Order took some time but was worth the Waite!!!”
The 15 companies listed for Thornton, CO prepare and file tax returns for individuals and small businesses. What each says about its services and credentials comes from its own website; ratings and quotes come from public reviews.
Area overview: Thornton, CO
Of the 15 companies we list here, 7 are in Thornton itself and 8 come from towns including Commerce City (2, 7 mi), Westminster (2, 7 mi) and Denver (2, 11 mi). 14 of the companies on this page have a rating, from 4.4 to 5.0 across 998 reviews; 9 have 50 or more reviews and 13 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (98%), quality (88%) and responsiveness (88%). The topics that come up most in reviews of the companies on this page are "communication", "knowledge" and "attention to detail". 5 are open on Saturdays and 3 on Sundays. 4 have a BBB rating of A or A+. Domain records put 8 websites of the companies on this page at ten or more years old; the oldest dates from 1995. 1 offers a free initial consultation. We have a website on file for 13 of the companies on this page; 11 publish a contact page; 8 list a public email and 5 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
Why are tax preparers outside Thornton shown on this page?
7 of the 15 companies are located in Thornton. The others come from other towns within 15 mi. Since most returns are handled through a portal, what matters is whether the preparer files in your state. Distances are straight-line.
YTD Bookkeeping Service
Reliance Tax Group
“It was too much stress and detail for me to do myself - What a Relief to know its been Done Right!”
Atlas Cpas & Advisors
“I have been using this firm for close to 20 years”
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Spies Tax Connections
“Creighton is a genuine person that helped me navigate through this stressful process with confidence, understanding, and care.”
Taxplus Financial
“The most thorough tax return i have ever filed was last year when i filed with him the first time.”
Redpoint Financial Group | CPA
“We had a complicated return this year and Jeff knocked it out of the park.”
Choice1 Accounting and Tax Services
“She helped me with multiple intricacies that I needed, like multiple states (including California) multiple rental properties, selling of one rental property out of state, multiple property capital improvements, itemizing, having a new dependent, etc.”
Latin Tax Center
“I always come do my taxes with them and they provide a good service always leave feel good about my tax return I recommend their service”
Blue Bear Tax Solutions
“The pricing was reasonable and transparent, and they even helped me identify potential tax deductions that I had missed in the past.”
Why these companies made our list
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