Chicago · Startups
CPA for Startups in Chicago
Chicago's startup ecosystem — from West Loop SaaS to Fulton Market biotech — runs on Delaware C-corps with Illinois operations. The right CPA handles 1120, the Illinois replacement tax, and R&D credits without surprising you at year-end.
Get help with QuickBooks, bookkeeping, payroll, tax planning, controller support, and CFO advisory from professionals who understand your business needs.
Who this is for
Who hires a Chicago startup CPA
Founders raising in the Midwest typically work with a local CPA fluent in Delaware corporate tax and Illinois compliance.
- Pre-seed and seed-stage founders
- Series A / B SaaS and fintech companies
- Biotech and hardtech startups
- Founders relocating to Illinois from CA or NY
- Companies preparing for SAFE conversions
What's included
Services a Chicago startup CPA provides
Tax + equity + R&D, delivered by a firm that has shipped a 1120 and an Illinois IL-1120 in the same year.
- Federal Form 1120 (Delaware C-corp)
- Illinois IL-1120 and replacement tax
- R&D tax credit (Section 41) studies
- 409A valuations and ISO/NSO tracking
- SAFE and convertible note accounting
- Chicago and Cook County registrations
How to choose
How to choose a Chicago startup CPA
Local presence helps; venture experience is mandatory.
- How many funded startups do you serve?
- Have you filed R&D credits at our stage?
- Can you coordinate with our 409A provider?
- How do you bill — fixed monthly or hourly?
- Do you work in Quickbooks Online with Stripe and Brex feeds?
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FAQ
Common questions
Should a Chicago startup incorporate in Delaware or Illinois?
Venture-backed companies almost always incorporate in Delaware for corporate-law predictability and investor expectations, then register as a foreign corporation in Illinois.
What is the Illinois replacement tax?
A 2.5% (corp) / 1.5% (pass-through) tax on Illinois net income, separate from the 9.5% corporate income tax. It applies to most entities doing business in Illinois.
Can a pre-revenue startup claim the R&D credit?
Yes — qualified small businesses can apply up to $500K of R&D credit against payroll taxes annually, even with no income-tax liability.
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Advisor-grade guides
Downloadable ebooks & templates
CPA-ready playbooks and templates you can use today — instant downloads, no signup required.
The Small Business Tax & Profit Playbook
A CPA-ready guide to deductions, quarterly taxes, S-Corp strategy, owner pay, cash flow, and year-round tax planning.
Business Tax Deduction Checklist
A CPA-curated checklist of 80+ business deductions most owners miss — organized by category so you can sweep it before filing.
The Definitive Bookkeeping Cleanup & Recovery Guide
The CPA's step-by-step playbook for diagnosing messy books, reconstructing missing history, and restoring a clean, audit-ready ledger.
The Freelancer Tax Guide
The practical tax playbook for freelancers, contractors, and solo creatives — deductions, quarterly estimates, and self-employment strategies.
The Year-End Tax Planning Guide
The CPA's December playbook — practical strategies to reduce your tax bill before the year closes.
The Premium Bookkeeping Template Pack
Automated dashboards, multi-account reconciliations, and CPA-ready reporting workbooks for serious owners and bookkeepers.
Tax & Bookkeeping Resource Library
Our complete advisor-grade collection — every premium asset an owner needs to run clean books, lower taxes, and recover messy ledgers, in one bundle.