Start a Tax Preparation Business in Colorado
Tax return preparation at $158-$525 per return.
Starting a tax preparation business in Colorado requires an IRS Preparer Tax Identification Number (PTIN), professional tax software, and strong knowledge of tax law. Colorado does not have a specific state tax preparer registration requirement beyond the federal IRS PTIN. You need a general business license and IRS Preparer Tax Identification Number (PTIN) to prepare tax returns for compensation. Startup costs range from $3,150 for a home-based seasonal operation to $21,000 for a year-round tax and accounting office. Tax preparers in Colorado charge $158-$525 per return depending on complexity.
Important Notices
IRS PTIN is Mandatory
Anyone who prepares or assists in preparing federal tax returns for compensation must have a valid PTIN from the IRS. Preparing returns without a PTIN is illegal and can result in penalties. Renew annually before each tax season.
Consider Becoming an Enrolled Agent
An Enrolled Agent (EA) is the IRS's highest credential for tax professionals. EAs have unlimited representation rights before the IRS, can represent clients in audits and appeals, and command higher fees. The 3-part Special Enrollment Exam is challenging but career-changing.
Important Notices
| Item | Low | High |
|---|---|---|
| LLC Filing Colorado LLC registration | $50 | $50 |
| Tax Software (Annual) Drake Tax, Lacerte, ProSeries, or UltraTax | $525 | $3,150 |
| IRS PTIN Annual federal preparer identification | $20 | $20 |
| State Registration (If Applicable) Colorado does not require separate state registration | $0 | $0 |
| Professional Liability Insurance (E&O) Annual—essential for tax preparers | $425 | $1,250 |
| General Liability Insurance Annual, $1M coverage | $275 | $625 |
| Surety Bond (If Required) Required in some states (CA, NV) | $0 | $525 |
| Computer & Equipment Computer, printer, scanner, shredder | $525 | $2,100 |
| Office Space (Seasonal) Jan-April rental or home office | $0 | $6,300 |
| Enrolled Agent Exam Prep (Optional) Gleim, Surgent, or Fast Forward Academy | $0 | $1,575 |
| Marketing & Advertising Google Ads, flyers, local advertising | $200 | $1,575 |
| Continuing Education Annual tax law updates and CE credits | $100 | $525 |
| Total | $2,120 | $17,695 |
PTIN & State Requirements
IRS PTIN (Preparer Tax Identification Number)
Federally required for all paid tax preparers. Renew annually.
15 minutes online
Business Registration
Register LLC with Colorado Secretary of State
1-2 weeks
EIN
Required for business banking and employer obligations
Instant online
General Business License
Check Colorado city/county requirements
1-2 weeks
Professional Liability Insurance (E&O)
Covers claims of tax preparation errors
Same day
EFIN (Electronic Filing Identification Number)
Required from IRS to e-file returns on behalf of clients
2-4 weeks
Enrolled Agent Certification (Optional)
IRS credential with unlimited representation rights. Pass 3-part SEE exam.
3-12 months
PTIN & State Requirements
Denver
715KDenver has a large population of individuals and small businesses needing tax preparation. Focus on underserved communities, self-employed individuals, and small business owners who need more than just DIY software but can't afford big CPA firms.
Colorado Springs
490KColorado Springs has a large population of individuals and small businesses needing tax preparation. Focus on underserved communities, self-employed individuals, and small business owners who need more than just DIY software but can't afford big CPA firms.
Aurora
390KAurora has a large population of individuals and small businesses needing tax preparation. Focus on underserved communities, self-employed individuals, and small business owners who need more than just DIY software but can't afford big CPA firms.
Boulder
105KBoulder has a large population of individuals and small businesses needing tax preparation. Focus on underserved communities, self-employed individuals, and small business owners who need more than just DIY software but can't afford big CPA firms.
Tax Preparation Costs in Other States
View all 50 statesColorado Tax Prep Tips
Start Seasonal, Expand Year-Round
Most new tax preparers in Colorado start as seasonal operations (January-April). As you build your client base, add year-round services: tax planning, bookkeeping, payroll, and quarterly estimated tax preparation. Year-round services create steady income beyond tax season.
Become an Enrolled Agent
The EA credential is the best investment a tax preparer can make. It gives you unlimited IRS representation rights, commands higher fees, and differentiates you from uncredentialed preparers. Study 3-6 months, pass 3 exams, and your earning potential jumps 30-50%.
Focus on Client Retention
Tax prep is a recurring business—clients return every year if you do good work. Send reminders in January, offer prior-year return discounts, and provide year-round tax tips. A Colorado practice with 200+ returning clients generates strong seasonal income.
Offer Tax Planning Services
Tax planning (not just preparation) commands premium fees. Help Colorado clients minimize their tax liability through strategic planning, retirement contributions, business deductions, and timing of income/expenses. Charge $200-$1050 for an annual tax planning session.
Colorado Tax Prep Tips
Get Your IRS PTIN
Apply for your Preparer Tax Identification Number at irs.gov/ptin. It costs $19.75 and takes about 15 minutes online. You must renew annually before each tax season. This is the minimum federal requirement to prepare returns for pay.
Check State Requirements
Colorado does not require a separate state tax preparer registration. However, check local business license requirements for your city/county. Consider voluntary IRS Annual Filing Season Program for credibility.
Get Tax Education & Consider EA Certification
Complete tax preparation training through an accredited program. Consider becoming an IRS Enrolled Agent (EA)—pass the 3-part Special Enrollment Exam for unlimited IRS representation rights. EA certification significantly increases your earning potential and credibility in Colorado.
Register Your Business
File LLC ($50) with Colorado Secretary of State. Get EIN from IRS (free). Apply for EFIN (Electronic Filing Identification Number) to e-file returns. Open a business bank account.
Purchase Tax Software
Choose professional tax software: Drake Tax ($1,500-$3,000/season), Lacerte ($400-$4,000), ProSeries ($500-$2,000), or UltraTax. Most Colorado preparers start with Drake or ProSeries for the best value. Ensure your software handles both federal and Colorado state returns.
Get Insurance & Bonding
Professional liability (E&O) insurance is critical—one error on a return can lead to costly client claims. Budget $425-$1250/year in Colorado.
Set Up Your Office
Set up a secure workspace with a reliable computer, printer/scanner, shredder (for sensitive documents), and locked filing for client records. Many Colorado preparers start from home offices during January-April and expand later.
Build Your Client Base
Start marketing in November/December before tax season. Offer early-bird discounts in Colorado. Partner with bookkeepers, financial advisors, and real estate agents for referrals. Register on Google Business Profile and local directories. Word-of-mouth from satisfied clients is your best long-term growth strategy.