Firstbase.io Review: Register a Business in the USA

Are you a foreign entrepreneur looking to register a business in the USA? Or maybe you have a great business idea, but no clue where to start when it comes to company formation. If that’s the case, you’ll want to take a serious look at Firstbase.io.

Firstbase.io has grown from a simple business registration platform into a full-stack Business Operating System (OS) for founders worldwide. Whether you’re starting from scratch or already have a company that needs better back-office management, Firstbase has expanded significantly since we last reviewed it.

In this updated Firstbase.io review, we’ll cover all the new products and features, current pricing, and what makes it stand out in 2026.

What Is Firstbase.io?

Firstbase.io is a platform that helps entrepreneurs (especially non-US residents) start and run a business in the United States entirely online, from anywhere in the world.

Since its founding, Firstbase has helped over 30,000 businesses across 191 countries get incorporated in the US, with more than $3 billion raised by its customers. What started as an LLC/C-Corp formation tool has grown into an all-in-one platform combining incorporation, compliance management, a virtual mailroom, bookkeeping, tax filing, and payroll tools, all accessible from a single dashboard.

The platform’s mission is simple: remove the administrative friction of running a US business so founders can focus on growth.

Firstbase.io Products (2026)

Here’s a full breakdown of every product Firstbase offers today.

1. Firstbase Start™ (Company Formation)

Firstbase Start™ is the entry point for new founders. It handles the complete process of forming an LLC or C-Corp in the United States, with no paperwork, no legal headaches, and no need to be physically present in the US.

What’s included:

• LLC or C-Corp formation in Delaware or Wyoming
• Expedited EIN (Employer Identification Number) setup
• No state filing fees
• Essential legal documents (Operating Agreements, Corporate Bylaws)
• Business bank account setup through partners like Mercury, Relay, and Brex
• Lifetime expert support
• Access to Firstbase Loop™ (see below)

Pricing: One-time fee of $399

Delaware is the top choice for C-Corps due to its strong shareholder protections and business-friendly legal framework. Wyoming is favored for LLCs because of its zero corporate income tax, zero annual franchise tax, and lower operating costs. Firstbase’s “Help Me Choose” quiz can guide you if you’re unsure which structure fits your goals.

Discount: Use the code NCP5 for a 5% discount on the Start product when you register here.

2. Firstbase Loop™ (Banking & Growth Tools)

Once you have your EIN, Firstbase Loop™ gives you one-click access to financial tools and growth partners. Instead of manually filling out application forms for each service, Loop pre-fills your company data and connects you to best-in-class partners in seconds.

Partners and services include:

• Banking: Mercury, Relay, Brex
• Payments: Stripe (with no processing fees on your first $20,000 in transactions)
• Payroll: Deel and other providers
• Accounting: QuickBooks integration
• Equity management: Create a cap table on Carta in one click after incorporation; file 83(b) elections for free and on time

Firstbase Loop™ also gives you access to over $350,000 in startup perks and rewards through partnerships with companies like Notion, Deel, AWS, and more — a huge benefit for early-stage startups watching their runway.

Loop is included for free with Firstbase Start™. If you didn’t incorporate with Firstbase, you can still sign up for Loop for free using your existing EIN.

3. Firstbase Mailroom™ (Virtual US Business Address)

Managing mail as a foreign business owner is one of the most overlooked pain points of running a US company. Firstbase Mailroom™ solves this with a premium physical US business address. You can choose a prestigious address in cities like New York or San Francisco, complete with a dedicated suite number.

What you get:

• Real street address you can use on your website, invoices, and official forms
• All mail scanned and uploaded to your Firstbase dashboard
• Automatic forwarding worldwide
• A PDF-to-mail feature to respond directly to forms from your dashboard
• Automatic agency notifications if you switch from an existing address

Pricing: Starts at $35/month (approximately $349/year for the premium plan)

Discount: Use code MAILROOM10 for 10% off the Mailroom product when you register here.

4. Firstbase Agent™ (Registered Agent & Compliance)

In most US states, every business is legally required to have a registered agent — a person or entity designated to receive legal documents and official notices on behalf of the business. Firstbase Agent™ handles this completely.

Beyond basic registered agent services, Firstbase Agent™ now includes a full automated compliance dashboard that tracks requirements, upcoming deadlines, annual report filings, and franchise tax payments across every state where you operate.

Agent plans:

• Agent Light: Basic registered agent + compliance reminders — starting at $149/year per state
• Agent Autopilot: Full compliance automation, automated filings — $299/year per state
• Agent Payroll: Includes payroll tax registration across all 50 states

Discounts:

• Code LIGHT10 → 10% off Agent Light
• Code AUTOPILOT10 → 10% off Agent Autopilot
• Code PAYROLL10 → 10% off Agent Payroll

All redeemable when you register here.

5. Firstbase Accounting™ (Bookkeeping & Financial Management)

This is one of the biggest additions to the Firstbase platform. Firstbase Accounting™ is a full-service bookkeeping platform that combines AI-powered automation with human CPAs and bookkeepers to deliver tax-ready financial statements.

How it works:

• Connect your bank accounts, credit cards, payroll systems, and payment processors
• A live transaction feed and dedicated bookkeeper automatically track your finances
• Real-time financial statements and insights are always available in your dashboard
• Chat directly with your bookkeeper through a built-in messaging system

Pricing: Accounting plans are usage-based, starting at $599/month for businesses with up to $10,000 in monthly expenses. Notably, when you incorporate with Firstbase, you currently get free access to Accounting for up to one year (until your monthly expenses exceed $2,500).

6. Firstbase Tax Filing™ (Business Taxes)

Firstbase Tax Filing™ removes the stress of tax season by handling all business tax filings — federal, state, and local — through a team of expert tax professionals.

What’s covered:

• Federal and state corporate tax returns (Form 1120 for C-Corps)
• Form 5472 for foreign-owned companies
• 1099s and other specialty forms
• Individual tax returns (for US-based founders)
• Seamless integration with Firstbase Accounting for a near-hands-off experience

Pricing: Approximately $1,799/year, depending on your business structure and filing complexity.

7. Firstbase One™ (All-in-One Bundle)

The newest and most compelling product Firstbase offers is Firstbase One™, a bundled subscription that brings together their four core operational products into a single package at a significant discount.

Firstbase One includes:

• Firstbase Agent™ Autopilot (for your domicile state)
• Firstbase Mailroom™ Premium
• Firstbase Accounting™
• Firstbase Tax Filing™
• $10,000 in free legal services via a partnership with DLA Piper, one of the world’s leading startup law firms

Pricing: $199/month, billed annually at $2,388/year, a saving of approximately $1,950 compared to subscribing to each product individually.

Firstbase One is available to anyone, whether you incorporated with Firstbase or another provider. If you’re an existing company, you can sign up directly from your dashboard.

Firstbase.io Pricing Summary

 

State fees (e.g., for foreign qualification) and taxes owed are charged separately.

Benefits of Using Firstbase.io

1. True All-in-One Platform

The biggest strength of Firstbase in 2026 is that it genuinely replaces multiple separate tools.

Formation, compliance, mail handling, bookkeeping, and taxes all in one dashboard, all talking to each other. This is especially valuable for solo founders and small teams who don’t have time to manage eight different vendors.

2. Built for International Founders

Firstbase is designed from the ground up for non-US residents. It supports multiple languages, including English, Spanish, French, Portuguese, Russian, and Arabic. The entire process (from incorporation to receiving mail to filing taxes) can be completed without ever setting foot in the US.

3. Fast Formation

Most companies are up and running within a few days. EIN processing typically takes around 30 days (this depends on IRS timelines, not Firstbase), but the formation itself can be completed in under 24 hours.

4. Startup Perks Worth Over $350,000

Through Firstbase Loop™ and partner integrations, founders get access to substantial discounts and credits from companies like Stripe, Notion, AWS, Deel, and Carta. This alone can offset a significant portion of your first year’s costs.

5. Compliance Automation

Staying compliant in the US requires ongoing attention: annual reports, franchise taxes, and registered agent updates. Firstbase Agent™ Autopilot handles this automatically, reducing the risk of accidentally falling out of good standing.

Potential Drawbacks to Consider

Costs can add up. The $399 formation fee is straightforward, but once you add registered agent, mailroom, accounting, and tax filing, the total annual cost can be substantial. Firstbase One helps here by bundling the four operational products at a discount.

Limited state selection for formation. Firstbase currently supports formation in Delaware and Wyoming only. If you need to incorporate in another specific state (say, California or Texas), you’ll need to foreign qualify, which Firstbase does support across all 50 states, but involves additional state fees.

Accounting pricing scales with usage. For businesses with high monthly expenses, the Accounting subscription can become expensive. Businesses with over $200,000 in monthly expenses or over $5M in annual revenue are moved to custom pricing.

No free trial. Firstbase does not offer a free trial, though new incorporations do currently receive free access to the Accounting product for a limited time.

Starting a Business in the United States: Key Steps

If you’re new to US business formation, here are the essential steps Firstbase walks you through:

1. Choose your business structure. The two most common options are LLC and C-Corp. LLCs offer flexibility, privacy, and pass-through taxation. C-Corps are better suited for startups planning to raise outside funding, as they can issue equity to investors and integrate with tools like Carta.

2. Choose your state. Delaware for C-Corps (strong legal protections, investor familiarity), Wyoming for LLCs (low cost, zero corporate income tax, strong privacy protections).

3. Get your EIN. Your Employer Identification Number is issued by the IRS and is required to open a US bank account, hire employees, and file taxes. Firstbase expedites this process.

4. Appoint a registered agent. Every US business is legally required to have a registered agent in the state of incorporation. Firstbase Agent™ covers this.

5. Open a business bank account. Use Firstbase Loop™ to apply for accounts at Mercury, Relay, or Brex, all pre-filled with your company information.

6. Set up compliance and accounting. Use Firstbase Agent™ Autopilot for ongoing compliance and Firstbase Accounting™ to keep clean books from day one.

LLC vs. C-Corp: Which Is Right for You?

This is one of the most common questions first-time founders ask, and Firstbase’s “Help Me Choose” tool can give you a personalized recommendation. Here’s a quick summary:

Choose an LLC if:

• You want simple management and flexible ownership
• You want pass-through taxation (profits taxed at the owner level, not entity level)
• You value privacy and lower annual costs
• You’re not planning to raise venture capital

Choose a C-Corp if:

• You plan to raise funding from investors or VCs
• You want to issue stock options to employees
• You’re building a high-growth startup and expect multiple funding rounds
• You want to take advantage of the R&D tax credit and other corporate tax strategies

Delaware C-Corps are the standard for VC-backed startups. Wyoming LLCs are the default for bootstrapped businesses, freelancers, and online entrepreneurs who want a lean, low-cost structure.

Firstbase.io vs. Competitors

 

Stripe Atlas is the closest competitor for international founders, but it only offers C-Corp formation in Delaware with no ongoing operational tools. Firstbase wins on breadth and integration for founders who want a long-term back-office solution.

Who Is Firstbase.io Best For?

Firstbase.io is an excellent fit for:

• Foreign entrepreneurs who want to build a US business remotely
• Digital nomads and solo founders who need a US address and compliance handled automatically
• Early-stage startups planning to raise funding (especially Delaware C-Corps)
• Bootstrapped businesses that want a clean, low-maintenance LLC structure
• Existing companies that want to consolidate their back-office tools into one platform

It’s less ideal for:

• Large enterprises that need custom ERP-level financial systems
• Businesses that need incorporation in states other than Delaware or Wyoming from day one
• Founders who prefer hands-on attorneys for personalized legal advice

Conclusion

Firstbase.io has matured considerably since its early days as a simple LLC formation tool. Today, it’s a legitimate all-in-one Business OS for international founders and global entrepreneurs, covering formation, compliance, mail, accounting, and taxes in a single, modern platform.

The introduction of Firstbase Accounting™, Firstbase Tax Filing™, and the Firstbase One™ bundle makes it much easier to justify the platform as a long-term investment rather than just a one-time formation service. The $10,000 in DLA Piper legal credits included with Firstbase One adds significant real-world value, especially for early-stage startups that need legal support but can’t yet afford expensive law firm retainers.

If you’re looking to register a company in the USA, whether you’re in Nigeria, India, Brazil, the UK, or anywhere else in the world, Firstbase remains one of the most comprehensive and founder-friendly options available.

Start your US business with Firstbase.io →

Frequently Asked Questions

Can non-US citizens use Firstbase.io? Yes. Firstbase is specifically built for international founders. You do not need a US address, SSN, or physical presence to register a business through Firstbase.

How long does it take to form a company with Firstbase? Company formation typically completes within 1–3 business days. EIN processing takes an additional 2–6 weeks, depending on IRS processing times.

Does Firstbase offer a free trial? No. However, new incorporations currently receive free access to Firstbase Accounting for up to one year (until monthly expenses exceed $2,500).

What states does Firstbase support for incorporation? Firstbase currently supports LLC and C-Corp formation in Delaware and Wyoming. Foreign qualifications are available in all 50 states.

Is Firstbase One worth it? For businesses that need registered agent services, a virtual mailbox, bookkeeping, and tax filing, Firstbase One saves approximately $1,950 per year compared to subscribing to each product individually. It also includes $10,000 in DLA Piper legal credits.

What banking partners does Firstbase work with? Firstbase Loop™ connects to Mercury, Relay, Brex, Stripe, Jeeves, and several other financial partners.