Start a Tax Preparation Business in Illinois
Tax return preparation at $147-$490 per return.
Starting a tax preparation business in Illinois requires an IRS Preparer Tax Identification Number (PTIN) and registration with Illinois Department of Financial and Professional Regulation, professional tax software, and strong knowledge of tax law. Illinois requires tax preparers to register through the Illinois Department of Financial and Professional Regulation. No mandatory state registration for basic tax prep, but voluntary registration available. Local jurisdictions may require business licenses. Startup costs range from $2,950 for a home-based seasonal operation to $19,600 for a year-round tax and accounting office. Tax preparers in Illinois charge $147-$490 per return depending on complexity.
Important Notices
Illinois Requires Tax Preparer Registration
Illinois is one of the few states that regulates tax preparers. No mandatory state registration for basic tax prep, but voluntary registration available. Local jurisdictions may require business licenses. N/A for state registration; local penalties may apply. Verify requirements at https://idfpr.illinois.gov/
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 Illinois LLC registration | $150 | $150 |
| Tax Software (Annual) Drake Tax, Lacerte, ProSeries, or UltraTax | $500 | $2,950 |
| IRS PTIN Annual federal preparer identification | $20 | $20 |
| Illinois Tax Preparer Registration Illinois Department of Financial and Professional Regulation | $100 | $100 |
| Professional Liability Insurance (E&O) Annual—essential for tax preparers | $400 | $1,175 |
| General Liability Insurance Annual, $1M coverage | $250 | $600 |
| Surety Bond (If Required) Required in some states (CA, NV) | $0 | $500 |
| Computer & Equipment Computer, printer, scanner, shredder | $500 | $1,950 |
| Office Space (Seasonal) Jan-April rental or home office | $0 | $5,875 |
| Enrolled Agent Exam Prep (Optional) Gleim, Surgent, or Fast Forward Academy | $0 | $1,475 |
| Marketing & Advertising Google Ads, flyers, local advertising | $200 | $1,475 |
| Continuing Education Annual tax law updates and CE credits | $100 | $500 |
| Total | $2,220 | $16,770 |
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 Illinois Secretary of State
1-2 weeks
EIN
Required for business banking and employer obligations
Instant online
Illinois Tax Preparer Registration
Illinois Department of Financial and Professional Regulation. No mandatory state registration for basic tax prep, but voluntary registration available. Local jurisdictions may require business licenses.
2-6 weeks
General Business License
Check Illinois 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
Chicago
2.7MChicago 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
180KAurora 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.
Naperville
150KNaperville 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.
Rockford
145KRockford 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 statesIllinois Tax Prep Tips
Start Seasonal, Expand Year-Round
Most new tax preparers in Illinois 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 Illinois practice with 200+ returning clients generates strong seasonal income.
Offer Tax Planning Services
Tax planning (not just preparation) commands premium fees. Help Illinois clients minimize their tax liability through strategic planning, retirement contributions, business deductions, and timing of income/expenses. Charge $200-$975 for an annual tax planning session.
Illinois 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.
Complete Illinois Registration Requirements
Illinois requires registration recommended. No mandatory state registration for basic tax prep, but voluntary registration available. Local jurisdictions may require business licenses. Complete this before your first tax season.
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 Illinois.
Register Your Business
File LLC ($150) with Illinois 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 Illinois preparers start with Drake or ProSeries for the best value. Ensure your software handles both federal and Illinois state returns.
Get Insurance & Bonding
Professional liability (E&O) insurance is critical—one error on a return can lead to costly client claims. Budget $400-$1175/year in Illinois.
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 Illinois 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 Illinois. 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.