--- # === IDENTITY === id: business/startup/legal-formation-playbook/2026 canonical_question: "How to form a startup legal entity — Delaware C-Corp, LLC, or international — with exact steps, costs, tools, and deadlines?" aliases: - "startup incorporation step by step" - "LLC vs C-Corp vs GmbH formation guide" - "how to incorporate a startup US and EU" - "Stripe Atlas vs Clerky vs DIY incorporation" - "83b election filing guide for founders" - "startup company registration costs and timeline" entity_type: execution_recipe domain: business > startup > Legal Formation Playbook region: global jurisdiction: global temporal_scope: 2024-2026 # === VERIFICATION === last_verified: 2026-03-11 confidence: 0.88 version: 2.0 first_published: 2026-03-10 # === TEMPORAL VALIDITY === temporal_validity: status: evolving last_breaking_change: "IRS Form 15620 enables electronic 83(b) filing from June 2025; UK Companies House fees rose to GBP 100 from Feb 2026; Clerky repriced to $427/$819 tiers" next_review: 2026-09-07 change_sensitivity: high # === CONSTRAINTS === constraints: - "Delaware C-Corp is mandatory for US VC-track startups — LLCs cannot issue preferred stock required by VCs" - "83(b) election has a hard 30-calendar-day deadline from restricted stock grant — no extensions, no exceptions" - "Legal entity must exist before accepting payment, signing contracts, or opening business bank accounts" - "State filing fees are government-set and non-negotiable — legal service fees are where costs vary" - "Multi-jurisdiction operations require registered agents and compliance filings in each jurisdiction" - "German GmbH requires EUR 25,000 share capital (EUR 12,500 upfront) — use UG (EUR 1) if capital-constrained" # === SKIP CONDITIONS === skip_this_unit_if: - condition: "User already has a legal entity and needs to restructure or convert" use_instead: "Search knowledgelib.io for entity restructuring and conversion — no dedicated unit yet" - condition: "User needs employment law guidance, not entity formation" use_instead: "business/startup/first-10-hires-playbook/2026" - condition: "User needs full startup launch sequence, not just legal formation" use_instead: "business/startup/startup-launch-checklist/2026" # === AGENT HINTS === inputs_needed: - key: primary_jurisdiction question: "Where will the company primarily operate?" type: choice options: ["United States", "European Union", "United Kingdom", "other"] - key: funding_path question: "What is the planned funding approach?" type: choice options: ["venture capital track", "bootstrapped / self-funded", "grants / government funding", "undecided"] - key: founder_count question: "How many co-founders?" type: choice options: ["solo founder", "2 co-founders", "3+ co-founders"] - key: tool_preference question: "Preferred formation method?" type: choice options: ["Stripe Atlas (speed + simplicity)", "Clerky (VC-grade docs)", "DIY state filing (lowest cost)", "attorney (complex situations)", "no preference — auto-select"] # === EXECUTION METADATA === execution: required_inputs: - name: "Funding path decision" source: "Founder strategy or startup-launch-checklist Step 1" format: "document" - name: "Co-founder equity split agreement" source: "Founder negotiation" format: "document" outputs: - name: "Registered legal entity with certificate" format: "document" description: "State/country-issued certificate of incorporation or formation with entity number" - name: "Tax ID (EIN or equivalent)" format: "document" description: "Federal employer identification number for tax filing and bank account opening" - name: "Executed founder agreements" format: "document" description: "Restricted stock purchase agreements, IP assignment, vesting schedules, 83(b) elections filed" - name: "Operational banking and payment processing" format: "configured platform" description: "Business bank account open, payment processing active (Stripe), ready to accept revenue" tools_required: - name: "Stripe Atlas" purpose: "All-in-one Delaware C-Corp or LLC formation" tier: "paid" cost: "$500 one-time" alternatives: ["Clerky ($427-$819)", "DIY state filing ($89-$200)", "Firstbase ($399)"] - name: "Clerky" purpose: "VC-grade formation documents and ongoing legal paperwork" tier: "paid" cost: "$427 (pay-per-use) or $819 (lifetime)" alternatives: ["Stripe Atlas ($500)", "startup attorney ($2,000-$5,000)"] - name: "Mercury / Relay" purpose: "Startup-friendly business banking" tier: "free" cost: "$0/month" alternatives: ["Wise Business", "SVB", "Brex"] credentials_needed: - service: "Delaware Division of Corporations" type: "online account" where_to_get: "https://corp.delaware.gov/" free_tier_limits: "N/A — pay per filing" - service: "IRS (for EIN)" type: "online application" where_to_get: "https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online" free_tier_limits: "Free — one EIN per responsible party per day" estimated_duration: "2-4 weeks (US standard); 1-2 weeks (US expedited); 4-8 weeks (EU with notarization)" estimated_cost: "$500-$6,000 (US) or EUR 300-EUR 30,000 (EU) depending on entity type and jurisdiction" # === DISTRIBUTION === canonical_source: "https://knowledgelib.io/business/startup/legal-formation-playbook/2026" suggested_citation: "Source: knowledgelib.io — AI Knowledge Library (verified 2026-03-11)" # === RELATED UNITS === related_kos: depends_on: - id: "business/startup/idea-validation-playbook/2026" label: "Validate the idea before committing to entity formation" feeds_into: - id: "business/startup/first-10-hires-playbook/2026" label: "Hiring requires an active legal entity" - id: "business/startup/financial-model-template-library/2026" label: "Financial modeling requires entity type context" related_to: - id: "business/startup/startup-launch-checklist/2026" label: "Entity formation is Step 2 of the launch checklist" - id: "business/startup/mvp-scoping-framework/2026" label: "MVP scoping begins after entity is formed" alternative_to: [] # === SOURCES === sources: - id: src1 title: "How to Start a Delaware C Corporation in 2026" author: Andrew S. Bosin LLC url: https://www.njbusiness-attorney.com/how-to-start-a-delaware-c-corporation-in-2026-a-step-by-step-guide-for-startup-founders/ type: official_docs published: 2025-12-01 reliability: authoritative - id: src2 title: "Delaware C-Corp and LLC Fees: Tax and Annual Filing Fees for 2026" author: Doola url: https://www.doola.com/blog/delaware-llc-fees/ type: industry_report published: 2025-11-01 reliability: high - id: src3 title: "Clerky Pricing — Formation and Legal Products for Startups" author: Clerky url: https://www.clerky.com/pricing type: official_docs published: 2025-01-01 reliability: authoritative - id: src4 title: "Stripe Atlas — Incorporate Your Startup in Delaware" author: Stripe url: https://stripe.com/atlas type: official_docs published: 2025-06-01 reliability: authoritative - id: src5 title: "IRS Adds Electronic Filing for 83(b) Elections in 2025" author: LBMC url: https://www.lbmc.com/blog/electronic-filing-for-83b-elections/ type: industry_report published: 2025-07-01 reliability: high - id: src6 title: "Corporate Fee Schedule — Division of Corporations, State of Delaware" author: State of Delaware url: https://corp.delaware.gov/fee/ type: official_docs published: 2025-01-01 reliability: authoritative - id: src7 title: "Companies House Fees Are Changing from 1 February 2026" author: UK Government url: https://www.gov.uk/government/news/companies-house-fees-are-changing-from-1-february-2026 type: official_docs published: 2025-11-01 reliability: authoritative - id: src8 title: "Company Formation in Estonia: The Ultimate Guide" author: Rozenberg Partners url: https://rozenberg.ee/the-ultimate-guide-to-company-formation-in-estonia-2026/ type: industry_report published: 2025-01-15 reliability: high --- # Legal Entity Formation: Startup Incorporation Recipe ## Purpose This recipe produces a fully registered legal entity — certificate of incorporation, tax ID, business bank account, founder equity agreements, and compliance calendar — ready to accept revenue and sign contracts. It covers US (Delaware C-Corp, LLC), EU (Estonian OU, German GmbH/UG), and UK (Ltd) jurisdictions with exact costs, tool paths, and hard deadlines including the critical 83(b) election window. [src1] ## Prerequisites - [ ] **Business idea validated** — do not form an entity for an untested concept -> If not: [Idea Validation Playbook](/business/startup/idea-validation-playbook/2026) - [ ] **Funding path decided** — VC-track vs bootstrapped determines entity type (no ambiguity allowed) - [ ] **Co-founder equity split agreed** (if multiple founders) — resolve before incorporation, not after - [ ] **Primary operating jurisdiction identified** — where customers and founders are located - [ ] **Government-issued ID** for all founders — required for state filings and EIN application ## Constraints - Delaware C-Corp is mandatory for US VC-track startups — VCs require preferred stock issuance, which LLCs and S-Corps cannot provide. [src1] - 83(b) election must be filed within 30 calendar days of restricted stock grant — hard deadline, no extensions. Missing this triggers income tax on stock as it vests at increasing valuations. [src5] - Founder equity agreements (vesting, IP assignment) must be executed at or before incorporation — not retroactively. [src1] - Filing fees are government-set and non-negotiable: Delaware Certificate of Incorporation $89; UK Ltd GBP 100; Estonian OU EUR 265. [src6] [src7] [src8] - Annual compliance obligations begin immediately upon formation — budget for ongoing costs, not just formation. Delaware franchise tax minimum: $175-$400/year. [src2] ## Tool Selection Decision ``` Which path? ├── VC-track AND want speed + simplicity │ └── PATH A: Stripe Atlas — $500 all-in, 1-2 business days ├── VC-track AND want maximum legal quality │ └── PATH B: Clerky — $427-$819, VC-grade Cooley-style docs ├── Bootstrapped AND want lowest cost │ └── PATH C: DIY State Filing — $89-$200, 3-5 business days └── Complex situation (regulated industry, multi-jurisdiction, non-US) └── PATH D: Startup Attorney — $2,000-$5,000, customized ``` | Path | Tools | Cost | Speed | Output Quality | |------|-------|------|-------|---------------| | A: Stripe Atlas | Stripe Atlas + Mercury | $500 + $0/mo bank | 1-2 days | High — includes Cooley-drafted docs, EIN, bank setup | | B: Clerky | Clerky + separate bank | $427-$819 | 2-3 days | Excellent — most comprehensive legal doc set | | C: DIY Filing | State portal + templates | $89-$200 + agent | 3-5 days | Basic — requires separate legal docs | | D: Attorney | Law firm + state filing | $2,000-$5,000 | 1-3 weeks | Custom — best for complex cap tables | [src3] [src4] ## Execution Flow ### Step 1: Choose Entity Type and Jurisdiction **Duration**: 1-2 days **Tool**: Decision matrix (no tool required) Apply the decision logic based on funding path and geography: - **VC-track (US)**: Delaware C-Corp — no exceptions. VCs require preferred stock and QSBS eligibility. [src1] - **Bootstrapped (US)**: LLC (pass-through tax, simpler compliance) or S-Corp (salary + distribution tax optimization if profitable) - **VC-track (EU)**: Dutch BV, Estonian OU, or incorporate Delaware C-Corp + foreign-qualify in EU - **Bootstrapped (EU)**: Estonian OU (EUR 265, 100% remote), German UG (EUR 1 capital), or UK Ltd (GBP 100) | Factor | Delaware C-Corp | US LLC | Estonian OU | German GmbH | UK Ltd | |--------|----------------|--------|-------------|-------------|--------| | VC fundable | Yes — required | No | Yes | Yes | Yes | | Formation cost | $89-$500 | $90-$500 | EUR 265-500 | EUR 1K-3K | GBP 100 | | Min capital | $0 | $0 | EUR 0.01 | EUR 25,000 | GBP 1 | | Annual tax | $175-$400 | $300 (DE) | 0% retained | ~30% | 19-25% | | Remote formation | Yes | Yes | Yes (e-Residency) | No (notary) | Yes | | Timeline | 1-5 days | 1-5 days | 1-2 days | 2-6 weeks | 1-2 days | [src2] [src6] [src7] [src8] **Verify**: Entity type and jurisdiction selected; rationale documented; all founders agree **If failed**: If founders disagree on entity type, resolve before proceeding — do not file with unresolved disputes ### Step 2: File Formation Documents **Duration**: 1-5 business days (US), 1-6 weeks (EU) **Tool**: Per path selected in Tool Selection Decision **Path A — Stripe Atlas ($500):** 1. Go to stripe.com/atlas and complete application (15 minutes) 2. Atlas files Certificate of Incorporation with Delaware 3. Entity active in 1-2 business days 4. Includes: Certificate of Incorporation, EIN, bylaws, restricted stock purchase agreements (Cooley-drafted), 83(b) election forms, and $2,500 in Stripe credits [src4] **Path B — Clerky ($427 pay-per-use or $819 lifetime):** 1. Create account at clerky.com, select Delaware C-Corp formation 2. Clerky files with Delaware expedited processing (included in price) 3. Certificate returned in 2-3 business days 4. Add Post-Incorporation Setup ($299): bylaws, board consent, restricted stock agreements, 83(b) forms, IP assignment agreements [src3] **Path C — DIY State Filing ($89-$200):** 1. Check name availability at corp.delaware.gov 2. File Certificate of Incorporation online ($89 state fee) 3. Appoint registered agent in Delaware ($50-$300/year) 4. Processing: 3-5 days standard; 24-hour expedited +$100; same-day +$1,000 [src6] 5. Draft bylaws and stock agreements separately (use Cooley GO free templates or hire attorney) **Path D — Attorney ($2,000-$5,000):** 1. Engage startup-experienced attorney (Cooley, Gunderson, Wilson Sonsini, or boutique startup firm) 2. Attorney handles all filings, custom cap table, complex structures 3. Best for: regulated industries, international founders, complex co-founder arrangements [src1] **Verify**: Stamped Certificate of Incorporation or Formation received from state; entity appears in state database **If failed**: If filing rejected, check for name conflicts at corp.delaware.gov and refile. Common cause: name too similar to existing entity — add distinguishing word and retry ### Step 3: Post-Formation Setup (EIN, Banking, Payment Processing) **Duration**: 1-5 days **Tool**: IRS.gov (EIN), Mercury/Relay (banking), Stripe (payments) 1. **EIN Application**: Apply online at irs.gov — free, immediate for US-based applicants. International founders: fax Form SS-4 (4-6 weeks) or use formation service. [src1] 2. **Business Bank Account**: Open with Mercury (recommended — startup-friendly, no minimums, free), Relay, or Brex. Requires: EIN, Certificate of Incorporation, founder ID. 3. **Payment Processing**: Set up Stripe account linked to business bank. Stripe Atlas users get this automatically with $2,500 in credits. [src4] 4. **Accounting**: Set up QuickBooks or Xero ($0-$30/month). Start tracking expenses from day zero — retroactive accounting is expensive and error-prone. [src2] **Verify**: EIN received; bank account active and accepting deposits; Stripe processing a test payment **If failed**: If EIN application fails online, apply by fax (Form SS-4). If bank application rejected, try Mercury or Relay — they have lower barriers than traditional banks ### Step 4: Execute Founder Agreements and 83(b) Elections **Duration**: 3-7 days **Tool**: Clerky/Atlas (templates) or attorney (custom) 1. **Issue Restricted Stock** to all founders with vesting: standard 4-year vesting, 1-year cliff. Even solo founders should vest (signals maturity to investors). [src1] 2. **File 83(b) Election — HARD 30-DAY DEADLINE**: File IRS Form 15620 within 30 calendar days of stock grant. As of June 2025, electronic filing is accepted. Alternatively, send via certified mail to IRS and keep proof of mailing. Give a copy to the company. [src5] 3. **IP Assignment (IIPR)**: Execute Confidential Information and Invention Assignment Agreement — all IP created by founders belongs to the company. [src1] 4. **Operating Agreement (LLC)** or **Bylaws (C-Corp)**: Execute and store. Operating Agreement is not filed with the state but is legally essential. 5. **Option Pool** (if hiring soon): Reserve 10-15% equity for future employees. Set up stock option plan (ISO for US employees, NSO for contractors). 409A valuation required before first option grant. **Verify**: Stock certificates or cap table reflect correct ownership; 83(b) filed with proof of receipt; IP assignment signed by all founders; agreements stored securely **If failed**: If 83(b) deadline approaching, file immediately — this is the single most time-critical action. If founders cannot agree on equity split, engage mediator before issuing stock ### Step 5: Set Up Compliance Calendar **Duration**: 2-4 hours **Tool**: Google Calendar or Notion Calendar all recurring obligations by entity type: - **Delaware C-Corp**: Annual franchise tax + annual report (March 1) — minimum $175 (authorized shares method) or $400 (assumed par value method); $50 annual report fee; $125 late penalty + 1.5%/month interest [src6] [src2] - **Delaware LLC**: Annual franchise tax (June 1) — $300 flat [src2] - **Estonian OU**: Annual report due 6 months after fiscal year end [src8] - **German GmbH/UG**: Annual financial statements, trade tax, corporate tax filings - **UK Ltd**: Confirmation statement (annual, GBP 50); corporation tax return (12 months after accounting period); annual accounts [src7] Set reminders 30 days before each deadline. Missing Delaware franchise tax: $125 penalty + 1.5%/month interest. [src6] **Verify**: Calendar entries created for all compliance dates; reminders set; first-year deadlines identified **If failed**: If uncertain about obligations, engage a startup CPA within 60 days of formation ## Output Schema ```json { "output_type": "legal_entity_formation_package", "format": "document collection", "columns": [ {"name": "entity_type", "type": "string", "description": "Legal entity type formed (C-Corp, LLC, OU, GmbH, Ltd)", "required": true}, {"name": "jurisdiction", "type": "string", "description": "State/country of formation", "required": true}, {"name": "certificate_number", "type": "string", "description": "State-issued entity or file number", "required": true}, {"name": "ein_or_tax_id", "type": "string", "description": "Federal tax ID (EIN) or equivalent", "required": true}, {"name": "bank_account_status", "type": "string", "description": "Active/pending/not yet opened", "required": true}, {"name": "eighty_three_b_filed", "type": "boolean", "description": "Whether 83(b) election was filed (C-Corp only)", "required": false}, {"name": "formation_date", "type": "date", "description": "Official date entity was formed", "required": true}, {"name": "formation_cost_total", "type": "number", "description": "Total cost of formation in USD", "required": true} ], "expected_row_count": "1", "sort_order": "N/A", "deduplication_key": "certificate_number" } ``` ## Quality Benchmarks | Quality Metric | Minimum Acceptable | Good | Excellent | |---------------|-------------------|------|-----------| | Time from decision to entity active | < 4 weeks | < 2 weeks | < 1 week | | 83(b) filed before deadline | Filed (any method) | Filed with 10+ days remaining | Filed electronically within 7 days | | Founder agreements completeness | Stock issued + vesting | + IP assignment + 83(b) | + option pool + NDA + board consent | | Bank account operational | Within 3 weeks | Within 2 weeks | Within 1 week | | Compliance calendar set | All dates identified | Reminders set | CPA engaged for first filing | **If below minimum**: If entity formation exceeds 4 weeks (US), check for filing errors or name conflicts. If 83(b) deadline has passed, consult tax attorney immediately — consequences are severe. ## Error Handling | Error | Likely Cause | Recovery Action | |-------|-------------|----------------| | Filing rejected by state | Name conflict with existing entity | Search state database, add distinguishing word, refile | | EIN application denied online | International applicant or multiple EINs in one day | Fax Form SS-4 to IRS; allow 4-6 weeks for processing | | 83(b) deadline approaching (<5 days remaining) | Delayed stock issuance or forgot to file | File electronically via Form 15620 immediately; if no electronic access, overnight certified mail to IRS [src5] | | Bank application rejected | Missing documents or entity too new | Try Mercury or Relay (lower barriers); ensure Certificate + EIN + founder ID are all provided | | Registered agent service lapses | Failed to renew annual payment | Appoint new agent immediately — state may administratively dissolve entity for no registered agent | | Franchise tax penalty assessed | Missed March 1 (C-Corp) or June 1 (LLC) deadline | Pay immediately with penalty ($125 + 1.5%/month interest); set up auto-pay to prevent recurrence [src6] | ## Cost Breakdown | Component | DIY (Lowest Cost) | Formation Service | Attorney (Full Service) | |-----------|-------------------|-------------------|------------------------| | State filing fee | $89 (DE C-Corp) | Included | Included | | Formation service fee | $0 | $427-$819 (Clerky) or $500 (Atlas) | $2,000-$5,000 | | Registered agent (year 1) | $50-$150/year | Included (year 1) | $100-$300/year | | Post-incorporation docs | $0 (free templates) | Included | Included | | EIN | $0 (free) | $0 (free) | $0 (free) | | Bank account | $0/month (Mercury) | $0/month | $0/month | | Equity management platform | $0-$100/month | $0-$100/month | $0-$100/month | | Year 1 franchise tax (DE C-Corp) | $175-$400 | $175-$400 | $175-$400 | | **Total formation cost** | **$300-$950** | **$600-$1,700** | **$2,500-$6,000** | | **Annual ongoing** | **$400-$800/year** | **$400-$800/year** | **$400-$800/year** | EU formation costs: Estonian OU EUR 385-620 total; German UG EUR 700-1,500; German GmbH EUR 1,000-3,000 + EUR 12,500 capital deposit; UK Ltd GBP 100-300 total. [src8] [src7] ## Anti-Patterns ### Wrong: Forming an LLC because it is "simpler" when planning to raise VC LLCs cannot issue preferred stock. Converting LLC to C-Corp later costs $5K-$15K in legal fees and creates tax complications. If there is any chance of VC funding, start with a Delaware C-Corp. [src1] ### Correct: Match entity type to funding path from day one VC-track: Delaware C-Corp. Bootstrapped: LLC or S-Corp. The cost difference at formation is $0-$400 — trivial compared to $5K-$15K conversion cost later. ### Wrong: Skipping the 83(b) election for restricted stock Without 83(b), founders pay income tax on stock as it vests at then-current fair market value — which increases as the company grows. A $0.001/share grant that becomes worth $10/share means paying tax on $9.999/share of "income" at each vesting event. [src5] ### Correct: File 83(b) within 30 days — no exceptions File IRS Form 15620 electronically (available since June 2025) or via certified mail. Tax the grant at near-zero formation value. The tax savings can be worth hundreds of thousands of dollars. [src1] ### Wrong: Splitting equity 50/50 without vesting "to be fair" A co-founder who leaves after 3 months keeps 50% forever. No vesting means no protection against early departure. ### Correct: All founders vest over 4 years with 1-year cliff Even solo founders should vest (VCs expect it). Standard: 4-year vest, 1-year cliff. Agree on split based on contribution, then vest it. [src1] ## When This Matters Use when a founder or agent needs to actually form a legal entity — not evaluate options or plan strategy, but execute the incorporation. Requires a funding path decision as input; produces a registered entity with tax ID, bank account, and founder agreements as output. ## Related Units - [Idea Validation Playbook](/business/startup/idea-validation-playbook/2026) — validate before incorporating - [Startup Launch Checklist](/business/startup/startup-launch-checklist/2026) — entity formation is Step 2 of the launch sequence - [First 10 Hires Playbook](/business/startup/first-10-hires-playbook/2026) — hiring requires an active entity - [Financial Model Template Library](/business/startup/financial-model-template-library/2026) — entity type affects financial model structure - [MVP Scoping Framework](/business/startup/mvp-scoping-framework/2026) — scoping begins after entity formation