> ## Content Index > Fetch the complete content index at: https://blog.otoco.io/llms.txt > Use this file to discover other available public pages before exploring further. # The Ultimate Solopreneur Company Kit: LLC, EIN, Bank & Tax - URL: https://blog.otoco.io/the-ultimate-solopreneur-company-kit-llc-ein-bank-tax/ - Published: 2026-07-27T23:58:15.000Z - Updated: 2026-08-12T19:02:24.000Z - Description: A practical LLC + EIN + bank + tax checklist for solo builders — including the Form 5472 trap for foreign owners. - Author: OtoCo - Tags: Guide, Solopreneur If you are a solopreneur, you do not need a fifty-page legal binder. You need a working company kit: a legal wrapper, a tax ID, a place to hold money, and a compliance checklist that keeps the wrapper alive. That kit is: **LLC + EIN + bank + tax**. Miss one piece and the others wobble. Form an LLC but skip the EIN, and banking stalls. Get an EIN but keep invoicing personally, and the liability shield is theatre. Open a bank account but ignore filings, and a quiet year can still end with a loud penalty — especially if you are a foreign owner staring at Form 5472. At OtoCo, we assemble this stack for builders who want to ship product, not decode state portals. We pioneered instant onchain LLCs and keep extending the operating layer — EIN, address, banking, tax filing with Genco — so company infrastructure sits within everybody’s reach. Use this as your practical numbered checklist. > **Short answer:** Form the LLC, get an EIN, open a business bank account, then calendar tax and state compliance. Do them in that order. Treat each step as production infrastructure, not optional polish. ## The kit at a glance | # | Piece | What it unlocks | What breaks if you skip it | | - | ---------------- | -------------------------------------- | ---------------------------------------- | | 1 | LLC | Legal wrapper + liability boundary | Personal name on every contract and risk | | 2 | EIN | Company tax ID for banks and forms | No serious US business banking | | 3 | Bank account | USD rails in the company’s name | Commingled personal/business cash | | 4 | Tax & compliance | Filings, renewals, information returns | Lapses, surprises, $25k-class penalties | Those four kit pieces show up clearly in what founders buy after formation: EIN first, then a mail address, tax filing support, and banking. The kit is not theoretical — it is the operating stack. ## Step 1 — Form the LLC An LLC (Limited Liability Company) is the container. It can hold assets, sign contracts, and stand as the recognised counterparty whilst you remain the owner behind it. That is the company most solopreneurs actually form. On OtoCo, single-member entities are the default — most founders form alone, then add partners later only if the company needs them. For the full data story behind the solo default, see [Why Every Builder Needs an LLC](https://blog.otoco.io/why-every-builder-needs-an-llc-even-solo/?utm%5Fcampaign=solo-kit). Decide: 1. **Jurisdiction** — Wyoming and Delaware are common choices for internet and crypto builders. Match the state to your next counterparty, not to LinkedIn prestige. Our [2026 crypto LLC guide](https://blog.otoco.io/how-to-form-an-llc-for-your-crypto-startup-in-2026/?utm%5Fcampaign=solo-kit) walks the trade-offs even if your product is not crypto-only. 2. **Name** — Check availability; match the exact spelling you will use on banking and tax forms. 3. **Operating agreement** — Even as a solo owner, write down control, ownership, and how company wallets/accounts are governed. 4. **Registered agent / US address** — Required for state service of process and useful for IRS/banking consistency. If you are bootstrapping without outside capital, a simple single-member LLC is usually the right first move — keep ownership clean, keep burn low, graduate later if you need to. We explore that mindset in our piece on [building without outside capital](https://blog.otoco.io/the-power-of-building-without-outside-capital-why-bootstrapped-companies-are-rewriting-the-rules/?utm%5Fcampaign=solo-kit). **Checklist:** Certificate of Formation saved · operating agreement signed · registered agent active · company name locked. ## Step 2 — Get the EIN An EIN (Employer Identification Number) is the company’s US tax ID. Banks, payment processors, and tax forms use it to recognise the entity. You do not need employees to need an EIN. You need an EIN to stop being “a person with a PDF.” 1. Form the LLC first — the IRS assigns EINs to existing entities. 2. Complete Form SS-4 with the legal name exactly as filed. 3. If you have no SSN, use the foreign-owner fax/mail route — not the US-person online portal. 4. Store the CP 575 confirmation letter where future-you can find it. Full walkthrough: [How to get an EIN for a US LLC without an SSN](https://blog.otoco.io/how-to-get-an-ein-for-a-us-llc-without-an-ssn-step-by-step/?utm%5Fcampaign=solo-kit). **Checklist:** SS-4 filed · EIN received · CP 575 stored · legal name matches formation docs. ## Step 3 — Open the business bank account The bank account is where the kit becomes real cashflow infrastructure. Aim for: 1. Account titled in the LLC’s legal name. 2. EIN on the application matching your IRS letter. 3. Ownership documents and operating agreement ready for KYC. 4. A business description a compliance officer can understand in one sentence. Non-US founders can do this remotely with the right stack. See [How to get a US LLC bank account as a non-US founder](https://blog.otoco.io/how-to-get-a-us-llc-bank-account-as-a-non-us-founder/?utm%5Fcampaign=solo-kit). After the account is live: stop mixing. Capitalise the company with clear transfers. Invoice through the LLC. Pay contractors from the company account. The liability story and the bookkeeping story both improve when money respects the wrapper. **Checklist:** Business account approved · personal and company cash separated · first inbound invoice tested · statements exportable. ## Step 4 — Tax and ongoing compliance This is the step founders under-budget — and where foreign owners get surprised. ### Separate “owed” from “required” **Pass-through** / disregarded treatment answers how profits are classified. It does not automatically mean “no US paperwork.” For many foreign-owned single-member US LLCs, **Form 5472** (with a pro forma Form 1120) is an annual information return about foreign ownership and related-party transactions. The penalty for missing it starts at **$25,000**. Filing required ≠ tax owed. Read the pillar: [What Is Form 5472 and Why Foreign-Owned LLCs Must File It](https://blog.otoco.io/what-is-form-5472-and-why-foreign-owned-llcs-must-file-it/?utm%5Fcampaign=solo-kit). Also see [Tax filing is now live on OtoCo](https://blog.otoco.io/tax-filing-is-now-live-on-otoco/?utm%5Fcampaign=solo-kit) for how we help inside the product. ### State good standing Federal forms are not the whole game. Calendar: 1. State annual reports / franchise tax. 2. Registered agent renewals. 3. Any jurisdiction-specific fees. A lapsed LLC weakens the story you just built with the bank and your clients. **Checklist:** Tax-year calendar set · Form 5472 assessed (if foreign-owned) · state renewal dates booked · bookkeeping system capturing related-party transfers. ## One-afternoon assembly order If you want a single sequence to follow this week: 1. Form the LLC at [otoco.io](https://otoco.io/?utm%5Fcampaign=solo-kit&ref=blog.otoco.io). 2. Add EIN filing (especially if you have no SSN). 3. Complete banking onboarding with your docs ready. 4. Move invoicing and subscriptions onto the company. 5. Open the Tax Center path / advisor path for 5472 and year-end filings before the deadline season hits. That is the solopreneur company kit. Not a bureaucracy hobby. A production checklist. ## FAQ: solopreneur company kit ### Can I skip the LLC and just get a bank account? Serious US business banking usually wants the entity + EIN first. Personal accounts are not a substitute for a company stack. ### Do bootstrapped founders need this kit? Yes — especially bootstrapped founders. When you are not raising a round to paper over messiness, clean rails matter more. Ownership stays yours; the kit keeps the company operable. ### Is this only for crypto? No. Crypto founders are a core OtoCo audience, but the same LLC → EIN → bank → tax sequence serves consultants, SaaS solopreneurs, agencies, and internet businesses of one. ### What if I already formed but missed steps? Start from the first missing piece. No EIN? File it. No bank? Onboard with clean docs. Foreign-owned and never filed 5472? Get advice quickly — do not wait for a notice. ## Assemble the kit — then ship Solopreneurs win on focus. The company kit exists so legal and banking plumbing stop stealing that focus. Form the wrapper. Get the tax ID. Open the account. Calendar the filings. Then go build the thing only you can build. [**Start your company kit at otoco.io**](https://otoco.io/?utm%5Fcampaign=solo-kit&ref=blog.otoco.io). --- *Disclaimer: This article is general information, not legal, tax, or accounting advice. OtoCo is not a law firm or CPA firm. Requirements vary by ownership, jurisdiction, and activity. Confirm current IRS and state rules — or work with qualified advisors — for your facts.* ## Helpful OtoCo resources - [How to Get an EIN for a US LLC Without an SSN](https://blog.otoco.io/how-to-get-an-ein-for-a-us-llc-without-an-ssn-step-by-step/?utm%5Fcampaign=solo-kit) - [How to Get a US LLC Bank Account as a Non-US Founder](https://blog.otoco.io/how-to-get-a-us-llc-bank-account-as-a-non-us-founder/?utm%5Fcampaign=solo-kit) - [How to Form an LLC for Your Crypto Startup in 2026](https://blog.otoco.io/how-to-form-an-llc-for-your-crypto-startup-in-2026/?utm%5Fcampaign=solo-kit) - [The Power of Building Without Outside Capital](https://blog.otoco.io/the-power-of-building-without-outside-capital-why-bootstrapped-companies-are-rewriting-the-rules/?utm%5Fcampaign=solo-kit) - [What Is Form 5472 and Why Foreign-Owned LLCs Must File It](https://blog.otoco.io/what-is-form-5472-and-why-foreign-owned-llcs-must-file-it/?utm%5Fcampaign=solo-kit) - [Form a company at otoco.io](https://otoco.io/?utm%5Fcampaign=solo-kit&ref=blog.otoco.io)