Intent to Use vs. Use in Commerce: How to Choose Your Trademark Filing Basis

Your filing basis determines more than a checkbox on the USPTO application form. It sets your priority date, dictates your evidence requirements, controls your timeline to registration, and shapes your total cost. Choose wrong and you risk an invalid registration that can be cancelled years later. Choose right and you secure nationwide protection for a mark you haven't even launched yet.

The USPTO received over 600,000 trademark applications in 2024. Roughly 55 to 60 percent were filed as intent to use trademark applications under Section 1(b), making it the most common filing basis for domestic applicants. Yet many filers choose their basis without understanding the tradeoffs. The right choice depends on three things: whether you are currently using the mark in commerce, whether you need early priority protection, and how much procedural overhead you are willing to manage.

What Is a Trademark Filing Basis (and Why Does It Matter)?

A filing basis is the legal ground on which you apply for a federal trademark registration. The USPTO requires every applicant to declare a basis in the application. It is not a formality. Your filing basis determines what evidence you must submit, when your legal priority begins, and which procedural steps stand between you and a registration certificate.

The Lanham Act provides four filing bases. Section 1(a) covers marks already in use in commerce. Section 1(b) covers marks the applicant intends to use but has not yet used. Section 44(e) is for applicants who hold a foreign registration, and Section 66(a) is for marks designated through the Madrid Protocol (the international treaty that allows a single application to cover multiple countries). For domestic filers, the choice almost always comes down to 1(a) or 1(b).

Getting this wrong has consequences. Filing under Section 1(a) when the mark is not actually in use constitutes a material misrepresentation to the USPTO. If discovered, the registration can be cancelled, even years after it issues. Filing under Section 1(b) when the mark is already in use is less dangerous but adds unnecessary cost and delay. The distinction matters, and understanding it before you file saves time, money, and legal exposure. For a broader view of the registration process from application to certificate, see the guide to how trademark registration works.

Section 1(a): Use in Commerce

A Section 1(a) application is filed when the mark is already in use in commerce at the time of filing. "Commerce" here means interstate or international commerce that Congress can regulate. Selling goods across state lines, offering services to customers in multiple states, or conducting any business activity that crosses a state or national border qualifies.

The key requirement is the specimen. A Section 1(a) applicant must submit evidence showing the mark as it is actually used in connection with the goods or services. For goods, this typically means a product label, packaging, or a screenshot of an e-commerce listing showing the mark on or near the product. For services, acceptable specimens include website pages, advertising materials, or signage that displays the mark in connection with the services being offered. The specimen must show the mark as filed (or a close variant) in actual commercial use, not a mockup or a rendering.

The timeline advantage of 1(a) is straightforward. Because use is already established, the application skips the Statement of Use step entirely. After examination and the 30-day opposition period (the window during which third parties can challenge the mark), the registration issues directly. This can shave months off the process compared to an intent-to-use filing.

Section 1(a) is the right basis when you are already selling goods or providing services under the mark, you can produce a specimen that meets USPTO standards, and you want the simplest path to registration. A founder who has been selling software under a brand name for six months and has a live product page showing the mark in use is a straightforward 1(a) candidate. For details on what the process costs at each stage, see the breakdown of trademark registration fees.

Section 1(b): Intent to Use

A Section 1(b) application (often called an ITU application, short for "intent to use") is filed when the applicant has a bona fide intention to use the mark in commerce but has not yet started. "Bona fide intention" means a genuine, concrete plan. The USPTO and courts have held that vague aspirations do not qualify. You need an actual product or service in development, not a speculative domain registration.

The priority advantage of Section 1(b) is significant, and it is the primary reason the majority of new applications use this basis. An ITU filing establishes a constructive use date as of the filing date. This means the applicant receives nationwide priority over anyone who begins using a similar mark after the filing date. For startups building products in competitive markets, this priority is valuable insurance. If a competitor launches with a confusingly similar mark three months after your ITU filing, your earlier filing date controls.

The tradeoff is procedural. An ITU applicant does not submit a specimen at filing, but must file a Statement of Use (SOU) before the application can mature into a registration. The process works like this: after examination and the opposition period, the USPTO issues a Notice of Allowance (NOA) instead of a registration certificate. The applicant then has six months from the NOA date to file the Statement of Use, which includes a specimen proving the mark is now in use in commerce.

If six months is not enough, the applicant can request extensions. The USPTO allows up to five six-month extensions, each costing $125 per class of goods or services. That provides a maximum of 36 months from the NOA date to begin using the mark and file the SOU. But each extension adds cost, and across multiple Nice classes (the international system for categorizing goods and services into 45 categories), the fees accumulate quickly.

Section 1(b) is the right basis when the mark is not yet in use, the product or service is in development with a concrete launch plan, and securing an early priority date matters. A startup planning to launch in eight months that wants to lock in nationwide priority today is the classic 1(b) use case. For a detailed walkthrough of the Statement of Use filing itself, including specimen requirements and common errors, see the full SOU guide.

Side-by-Side Comparison

The cost difference is worth spelling out. A single-class 1(a) application filed through TEAS Plus costs $250. A single-class 1(b) application starts at the same $250, but the SOU adds $100, bringing the minimum total to $350. If the applicant needs two six-month extensions before the product launches, that adds another $250 ($125 per extension), bringing the total to $600. For a multi-class filing covering three Nice classes, those extensions cost $750 in total, not $250. The per-class math is what catches applicants off guard.

None of these figures include attorney fees, which typically range from $500 to $2,000 for a standard application. But the government fees alone make clear that an ITU filing with extensions costs meaningfully more than a use-based filing. The question is whether the priority protection is worth that premium. In competitive categories, it usually is.

How to Choose: A Decision Framework

I will take a position here, because the equivocating "it depends" answer that most resources offer does not help someone who needs to file this week.

Question 1: Are you currently using the mark in commerce? If yes, and you can prove it with a qualifying specimen, file under Section 1(a). If no, file under Section 1(b). This is the threshold question, and it resolves the majority of cases.

Question 2: Can you prove current use? Even if you believe the mark is in use, the specimen must meet USPTO standards. A social media post mentioning your brand name is almost certainly not a qualifying specimen for goods. An Instagram account using a name is not the same as using the mark "in commerce" within the meaning of the Lanham Act. If you cannot produce a specimen showing the mark on product packaging, a product display page, or in direct connection with the advertised services, you are not ready for Section 1(a). For guidance on preparing a strong application, including specimen selection, see the application preparation guide.

Question 3: Do you need priority protection? If you are operating in a competitive market where others might adopt similar marks, the constructive use date from a 1(b) filing is meaningful protection. It gives you a nationwide priority claim as of your filing date. For some applicants, this alone justifies the additional cost and procedural complexity.

There is one strategic case worth highlighting. Even if your product launch is only weeks away, filing under Section 1(b) may still be the better move. Filing today locks in today's date as your constructive use date. If you wait until the product launches and file under 1(a), your priority date is the later filing date. In fast-moving markets, those extra weeks of priority can matter.

A gray area that trips up founders frequently: "I'm using the name on social media and my website but haven't made a sale yet." In most cases, this does not constitute use in commerce sufficient for Section 1(a). Use in commerce requires a bona fide transaction or the rendering of services to real customers, not a landing page or an "about" section. When in doubt, file 1(b). The cost of a mischaracterized 1(a) filing is far higher than the cost of the Statement of Use.

Mistakes That Derail Applications

Filing 1(a) prematurely. This is the most consequential mistake on this list. Claiming use in commerce when the mark is not actually in use at the time of filing is a material misrepresentation to the USPTO. It constitutes fraud on the trademark office. A registration obtained on a false claim of use can be cancelled in a cancellation proceeding, potentially years after it issues. The applicant may have built significant brand equity by that point, all of it at risk. My position: when there is any ambiguity about whether current use qualifies, file 1(b). The additional cost is trivial compared to a cancelled registration.

Letting the Statement of Use deadline lapse. The six-month window following the Notice of Allowance is a hard deadline. If the applicant does not file a Statement of Use or an extension request within that window, the application is abandoned. The USPTO does allow petitions to revive for unintentional delays, but these are discretionary, not guaranteed, and not the safety net applicants assume. Calendar the NOA date the day it arrives.

Underestimating extension costs across multiple classes. Filing an ITU application in three Nice classes seems reasonable until the extensions start. Each extension costs $125 per class. Two extensions across three classes costs $750. Five extensions across three classes costs $1,875 in extension fees alone, on top of the $300 SOU filing fee and the original $750 application fee. The total government fees for a three-class ITU application with maximum extensions exceed $2,900. Plan the budget before filing.

Skipping the clearance search. Filing basis strategy is irrelevant if the mark is already taken. Before deciding between 1(a) and 1(b), search the USPTO database and relevant common-law sources to confirm the mark is available. A clearance search before filing is less expensive than an office action or opposition proceeding after filing.

Consult a trademark attorney for guidance specific to your situation. The legal nuances of use in commerce, specimen adequacy, and priority disputes are fact-specific, and this article is educational, not legal advice.

Choose Your Basis, Then Clear Your Mark

The filing basis decision comes down to a simple question: is the mark in use today, or not? If it is, and you can prove it, Section 1(a) offers a faster and less expensive path. If it is not, or if early priority protection matters, Section 1(b) provides the legal mechanism to secure your position before launch.

Either way, the first step before filing is confirming the mark is available. Signa provides trademark search and monitoring tools to help you clear your mark before filing.