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You’ve been invoicing clients under your own name for a year, maybe two. You know you should have an LLC — the liability protection alone makes sense once real money starts moving through your business — and you’ve probably thought about trademarking your brand name at least once, usually right after you saw someone else’s business get hit with a cease-and-desist. But every time you look into it, the quote from a local business attorney lands somewhere between $800 and $2,500 just to file paperwork you suspect isn’t actually that complicated for a one-person consulting or service business.
That gap between “I know I should do this” and “this feels like overkill for what I am” is where a lot of solopreneurs get stuck for years. The truth is that most single-member LLC formations and straightforward trademark applications don’t require bespoke legal work — they require someone to fill out the right state or federal forms correctly and file them on time. That’s exactly the kind of structured, repetitive task that AI-assisted formation and trademark platforms have gotten good at handling, at a fraction of what a law firm bills for the same paperwork.
None of the tools below are a law firm, and none of them replace an attorney if you’re dealing with multiple founders, complex equity splits, or a trademark dispute. But for the common case — one person forming a single-member LLC or filing a straightforward trademark application — they close the gap between “too expensive to bother” and “actually done.”
The best AI business formation and trademark tools for solopreneurs
Firstbase
Firstbase handles LLC and C-corp formation, and increasingly markets itself around ongoing compliance rather than just the initial filing. Its standout feature is Firstbase Agent, an AI-driven compliance layer that tracks state filing deadlines, sends automated reminders, and scans and files annual reports and franchise tax paperwork on your behalf so you’re not the one remembering when your state’s report is due. Formation starts at $399, which includes the state filing fee; a registered agent add-on through Agent Autopilot runs $299 per year on top of that.
doola
doola positions itself as a “business-in-a-box” for founders who want formation, a registered agent, bookkeeping, and tax filing under one roof, and it’s especially popular with non-US founders forming US LLCs. Its AI Co-Founder feature acts as an always-available assistant for compliance and business questions, reducing how often you need to loop in outside help for routine decisions. The Starter plan is $297 per year plus state filing fees; more comprehensive Total Compliance plans run $1,999 to $2,999 per year (or $329/month) for bundled bookkeeping and tax filing.
LegalZoom
LegalZoom is the most recognizable name in this space and covers LLC formation, registered agent service, and a broader library of legal documents and attorney consultations. In 2026 it rolled out an AI-powered business license research tool that automates figuring out which local and state licenses your business actually needs — a step people frequently skip or get wrong — and it has begun integrating attorney services directly with AI assistants for faster, flat-fee legal support instead of billable hours. Formation plans run Basic ($0 plus state fees), Pro ($249 plus state fees), and Premium ($299 plus state fees), with registered agent service priced separately at $249 per year.
Trademarkia
Trademarkia is built specifically around trademark search and filing rather than business formation. Its standout AI feature is a registrability predictor that scores your proposed trademark against factors like similar existing marks, genericness, and descriptiveness before you file, plus an AI-powered image search that flags visually similar logos across its database of more than 12 million trademarks — useful since a name can clear a text search and still collide with someone’s logo. Filing starts around $499 for an attorney-reviewed application, which is separate from the USPTO’s own government filing fee of $350 per class of goods or services when filed electronically. No tool, including Trademarkia, can guarantee the USPTO approves your application — the agency makes that call independently.
Bizee (formerly Incfile)
Bizee is the budget option for straightforward LLC formation, with a free ($0 plus state fees) tier that covers Articles of Organization and a first year of registered agent service. Its free AI business name generator is a nice bonus if you’re still finalizing your name at the same time you’re filing, suggesting available options tailored to your business type. Paid tiers are Gold ($199) and Platinum ($299), both plus your state’s filing fee, and registered agent service renews at $119 per year afterward — one of the lower renewal rates in the category.
Which one should you choose?
If you just need the LLC formed and nothing else, Bizee’s free-plus-state-fee tier is the cheapest way to get a legally formed entity without paying for services you don’t need yet. If you want formation bundled with an actual registered agent and ongoing compliance tracking so you’re not the one remembering deadlines, Firstbase or doola are built for that — Firstbase leans toward automated filings and reminders, doola leans toward bundling bookkeeping and tax alongside formation. If trademark protection is the specific thing you’re after and formation isn’t the issue, skip the formation platforms entirely and go straight to Trademarkia for the search and filing tools. And if you’re a non-US founder trying to form a US LLC, doola and Firstbase both specialize in that use case, including EIN registration without a Social Security number and US business mailing addresses.
Formation and trademarks are only two pieces of the legal groundwork a one-person business needs — you’ll also want contracts, terms of service, and basic agreements in place before you take on clients, which is exactly what we cover in our roundup of AI legal and contract tools for solopreneurs. And if you haven’t actually landed on the business name you’re about to register yet, it’s worth working backward — once you’ve landed on a name using an AI business naming and domain tool, you’ll avoid the annoying scenario of forming an LLC or filing a trademark under a name you end up changing six months later.
If you want more breakdowns like this one before you commit to a tool, our newsletter The Solo Stack covers what’s actually worth paying for as a one-person business, without the sponsored fluff.
Frequently asked questions
Do I need an LLC as a solopreneur?
Not legally — you can operate as a sole proprietor indefinitely. But without an LLC, there’s no separation between your business liabilities and your personal assets, meaning a lawsuit or unpaid business debt can reach your personal bank account, house, or car. Most solopreneurs form an LLC once they’re taking on client work with any real liability exposure, signing contracts, or bringing in consistent revenue, rather than waiting until something goes wrong.
How much does a trademark actually cost through the USPTO?
As of 2026, the USPTO’s base electronic filing fee is $350 per class of goods or services, meaning a business that sells products and offers services might need to file under two classes and pay $700 in government fees alone. That’s separate from and in addition to whatever a filing service like Trademarkia or LegalZoom charges for helping prepare and review the application.
Can I file an LLC or trademark myself without any of these tools?
Yes. You can form an LLC directly through your state’s Secretary of State website for just the state filing fee, and you can file a trademark application directly through the USPTO’s own portal for just the government fee. These tools exist to save you time, reduce the chance of a rejected filing due to formatting or paperwork errors, and add ongoing compliance tracking — not because self-filing is impossible.
How long does trademark registration take?
Trademark registration typically takes several months to over a year from filing to final approval, even when everything goes smoothly, because the USPTO reviews applications in stages and publishes approved marks for a public opposition period before registering them. Filing services can speed up the preparation and reduce filing errors, but none of them can speed up the USPTO’s own review timeline.
Do these AI formation and trademark tools replace a lawyer?
For a simple, single-member LLC or a straightforward trademark filing with no competing marks, they generally handle the paperwork just fine. They are not law firms, though, and none of them provide the kind of legal judgment you’d want for a trademark dispute, a multi-founder equity structure, or industry-specific licensing questions — those situations still call for an actual attorney.