The Solo Founder's Legal and Financial Setup Guide

You shipped the product. Users are signing up. Stripe is collecting money. Now the unsexy question hits: are you operating as a real business, or are you personally liable when something goes wrong?

Most solo founders ignore the legal and financial setup until it's urgent - or until they get their first tax bill and realize they should have incorporated six months ago. This guide walks through the essentials: entity formation, banking, taxes, and the compliance tasks that keep you out of trouble. No legal jargon. Just decisions you need to make and steps you need to take.

This is general information for founders, not legal or tax advice. Confirm entity, tax, and compliance choices with a qualified professional in your jurisdiction.

LLC vs C-Corp: Which One for a Bootstrapped SaaS?

The short answer: if you're not raising venture capital, you probably want an LLC.

LLC (Limited Liability Company) is the default choice for bootstrapped indie hackers. It's simple, flexible, and passes income through to your personal tax return - no corporate tax filing. You get liability protection (your personal assets are separate from business debts), and you can always convert to a C-Corp later if you decide to raise funding.

C-Corp makes sense if you're raising money from investors, planning to issue stock options, or targeting an acquisition by a larger company. It's more complex - separate tax filings, board meetings, corporate formalities - but it's what VCs expect.

For context, Stripe Atlas¹ only incorporates Delaware C-Corps by default. If you want an LLC through Stripe Atlas, you need to specify it. Many solo founders go with the C-Corp because Stripe Atlas makes it easy, then regret the extra tax complexity later.

Practical rule: Start as an LLC. Convert to C-Corp when a VC writes a check. Not before.

Stripe Atlas: The Fastest Path to Incorporation

Stripe Atlas is the most popular incorporation path for indie hackers and remote founders. For a $500 one-time fee, you get:

• Delaware C-Corporation (or LLC if specified)
• Federal EIN from the IRS
• Stripe account ready to accept payments
• Post-incorporation paperwork (83(b) election, stock issuance)

The whole process takes 1-2 weeks. Compare that to hiring a traditional lawyer ($2,000-5,000) or using a generic online service that doesn't integrate with your payment processor.

Alternatives worth considering:

• Clerky² - Specialized for Delaware C-Corps, startup-focused legal templates. More expensive but more guidance.
• Doola³ - Popular with international founders. Handles LLC formation + registered agent + annual compliance.
• Firstbase.io⁴ - Similar to Stripe Atlas with more post-incorporation support.

Stripe Atlas's real advantage isn't price - it's integration. Your Stripe account, your incorporation documents, and your banking relationships all connect.

Getting Your EIN and Opening a Business Bank Account

Your EIN (Employer Identification Number) is your business's Social Security number. You need it to open a business bank account, file taxes, and hire contractors. Stripe Atlas handles this for you. If you're incorporating on your own, apply at irs.gov⁵ - it's free and takes 10 minutes.

For banking, three options dominate the indie hacker space:

I use Mercury. Free, no minimum balance, integrates with Stripe, and the debit cards work everywhere. The API access is useful if you ever want to automate financial reporting.

Important: Keep business and personal finances completely separate. Use your business account for all business income and expenses. This isn't just good practice - it's required to maintain your liability protection. Mixing funds is called "piercing the corporate veil" and it can make you personally liable.

The Tax Obligations Nobody Warns You About

Here's what shocked me: even if your company makes $0, you still have to file taxes.

Federal taxes: All US entities must file a federal tax return annually. LLCs file through your personal return (Schedule C). C-Corps file Form 1120. Deadlines vary - LLCs follow the April 15 personal deadline, C-Corps typically March 15.

State taxes: Delaware requires an annual Franchise Tax ($300 minimum for LLCs, $400+ for C-Corps). If you operate in other states, you may have filing obligations there too.

Quarterly estimated taxes: If you expect to owe more than $1,000 in taxes for the year, the IRS requires quarterly estimated payments. These are due April 15, June 15, September 15, and January 15. Miss them and you'll pay penalties - even if you're due a refund at year-end.

How to calculate quarterly payments: Take last year's total tax liability, divide by four, and pay that each quarter. If this is your first year in business, estimate conservatively - 25-30% of net profit is a safe rule of thumb.

Sales tax: If you sell to customers in the US, you may owe sales tax in states where you have "economic nexus" - typically $100,000 in revenue or 200 transactions annually. Stripe Tax (add-on to Stripe) handles this automatically for 1% of revenue. Worth it once you're processing meaningful volume.

Contracts and Legal Documents You Actually Need

Three documents are non-negotiable. Everything else is optional until you scale.

1. Terms of Service Your ToS limits liability, defines what users can and can't do, and establishes jurisdiction if there's a dispute. Don't copy-paste from another site - use a generator specific to your business model.

• For SaaS: TermsFeed⁹ or GetTerms¹⁰ - $50-150 for a generated ToS
• For marketplaces or high-risk products: hire a lawyer. The $2,000 you spend could save you $200,000 later.

1. Privacy Policy Required by law if you collect any personal data - emails, cookies, analytics, payment info. Also required if you serve EU users (GDPR) or California users (CCPA). GDPR fines can reach 4% of global revenue, so this matters even for small products.
2. Contractor Agreements If you hire freelancers (designers, developers, copywriters), you need a contract that establishes: work ownership (you keep the IP), confidentiality, payment terms, and independent contractor status. Stripe Atlas provides a template. Otherwise, use Bonsai¹¹ or PandaDoc¹².

Accounting: How to Track Money Without Losing Your Mind

You don't need an accountant on day one. You do need a system.

Month 1-6: DIY with Wave¹³ (free) or QuickBooks Self-Employed¹⁴ ($15/month). Connect your business bank account, categorize transactions, and track revenue and expenses. That's enough for tax time.

Month 6-12: As revenue grows, consider Pilot¹⁵ or Bench¹⁶ - both offer bookkeeping + tax prep starting around $200/month. They specialize in startups and integrate with Stripe.

What to track from day one: - All revenue (Stripe makes this easy - export monthly) - All expenses (hosting, tools, domains, contractor payments) - Miles driven for business (if applicable) - Home office percentage (if you work from home - deductible)

Deductions most solo founders miss: - Software subscriptions (every SaaS tool you use for business) - Internet and phone bills (business-use percentage) - Conference tickets and travel - Health insurance premiums (self-employed health insurance deduction) - Retirement contributions (SEP-IRA or Solo 401(k) - huge tax saver)

Intellectual Property: Should You Trademark?

For most indie hackers, trademarking the product name is a "nice to have" in year one, not a "must have." The risk of someone stealing your name is lower than the $250-400 filing cost would suggest.

Exception: If your brand is a major asset - you're building a consumer product, investing heavily in content/SEO, or operating in a space with copycats - file a trademark within the first 90 days. Use Trademark Engine¹⁷ or file directly at uspto.gov¹⁸.

What you don't need: patents. They're expensive ($10,000-30,000), slow (2-3 years), and irrelevant for most software products. Your code is automatically protected by copyright. Your competitive advantage is speed and execution, not legal barriers.

When to Hire a Professional (and When to DIY)

The trigger to hire professionals: when the cost of getting it wrong exceeds the cost of hiring help. A $500 CPA fee to avoid a $2,000 penalty is obvious math. Same with a $2,000 lawyer fee to protect a $50,000 MRR business.

The 90-Day Action Plan

Here's your concrete timeline:

Week 1-2: Decide LLC vs C-Corp. File incorporation (Stripe Atlas or alternative). Apply for EIN.

Week 3: Open business bank account (Mercury, Relay, or Wise). Connect to Stripe.

Week 4: Set up accounting system (Wave or QuickBooks). Connect bank and Stripe accounts.

Month 2: Generate Terms of Service and Privacy Policy. Add to your app/website. Set up quarterly tax reminders.

Month 3: Review first month's numbers. Categorize all transactions. If revenue is growing, trademark your name. File first quarterly estimated tax payment if applicable.

Focus on building - let launchbuddy.com handle the launch readiness assessment so you can ship with confidence.

Related Content

• How to Add Stripe Payments to Your Vibe-Coded App in 30 Minutes - Connect your legal entity to a working payment flow
• How to Set Up Payments via Your Agent in Codex - Automate payment infrastructure through your AI agent
• Why Haven't You Launched Yet? (And How AI Agents Fix It) - If legal complexity is what's holding you back

Sources and notes

1. Stripe Atlas: https://stripe.com/atlas
2. Clerky: https://www.clerky.com/
3. Doola: https://www.doola.com/
4. Firstbase.io: https://firstbase.io/
5. irs.gov: https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online
6. Mercury: https://mercury.com/
7. Relay: https://relayfi.com/
8. Wise: https://wise.com/
9. TermsFeed: https://www.termsfeed.com/
10. GetTerms: https://getterms.io/
11. Bonsai: https://www.hellobonsai.com/
12. PandaDoc: https://www.pandadoc.com/
13. Wave: https://www.waveapps.com/
14. QuickBooks Self-Employed: https://quickbooks.intuit.com/self-employed/
15. Pilot: https://pilot.com/
16. Bench: https://bench.co/
17. Trademark Engine: https://www.trademarkengine.com/
18. uspto.gov: https://www.uspto.gov/