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Guide, September 2026

Micro Entity Status in 2026: Requirements, Fees, and the 80% Discount

Micro entity status cuts most USPTO patent fees by 80 percent. The rules are narrow and the certification is signed under penalty. Here is who actually qualifies.

The four requirements

Micro entity status on the gross income basis comes from 35 U.S.C. 123 and 37 CFR 1.29(a). All four conditions must hold, and they must hold for every applicant and every named inventor, not just the lead one.

  1. Everyone qualifies as a small entity under 37 CFR 1.27.
  2. No applicant and no inventor has been named as an inventor on more than four previously filed nonprovisional applications.
  3. No applicant and no inventor had a gross income in the preceding calendar year exceeding the maximum qualifying gross income.
  4. No applicant and no inventor has assigned, or is obligated to assign, an ownership interest to an entity that exceeded that income limit.

The income limit

The maximum qualifying gross income is $251,190, effective September 9, 2025. The statute sets it at three times the median household income for the preceding calendar year as most recently reported by the Bureau of the Census, so the number is revised periodically. Check it against the USPTO page before you certify, not against a number you remember. Gross income means the income of the person from all sources, not the income attributable to the invention.

The four-application count

This one catches people. The count is of nonprovisional applications on which a person was named as an inventor. Provisional applications do not count. Neither do international applications for which the basic national fee was not paid, nor applications the inventor was obligated to assign to a former employer as a result of that employment. A serial inventor who assigned everything to past employers can still qualify, while an independent inventor on a fifth self-filed case cannot.

The higher education route, and what the discount is worth

37 CFR 1.29(d) gives a second, independent basis with no income test. An applicant qualifies if the majority of their income comes from an institution of higher education as defined in the Higher Education Act, or if they have assigned or are obligated to assign ownership to such an institution. That route is certified on form PTO/SB/15B; the gross income basis uses PTO/SB/15A. Either way, status carries an 80 percent reduction on most USPTO patent fees. On one fee, prioritized examination is $4,515 undiscounted and $903 at the micro rate, per the USPTO fee schedule effective January 19, 2025, last revised August 14, 2026. Attorney fees are separate and are published in the patent prosecution cost guide.

If you are an individual inventor or a small company

Check the four-application count and each founder's prior year income before you certify, and write down what you checked. If one co-inventor is over the income limit, the application does not qualify, even if everyone else is under. Status is not permanent either: a funding round, an acquisition, or a new obligation to assign can end it. When it ends, file the notification of loss of entitlement and move to the correct rate. A false certification can be treated as fraud on the Office and put enforceability at risk, so when the answer is close, pay the higher rate. What the discount buys in speed is in the Track One guide.

If you run a corporate patent program

Most companies with a patent program are not micro entities, and often not small entities either, because the assignment obligation runs to the company. Where it matters is at the edges: a spinout before its first round, a joint filing with a university co-inventor, or a case where the inventor is an outside consultant with no assignment obligation to you. Those need a real check rather than an assumption. Build entity status into docketing so a change in ownership triggers a review of the rate.

Common questions

What are the requirements for micro entity status?

Under 37 CFR 1.29(a) there are four. You qualify as a small entity. Neither the applicant nor any inventor has been named as an inventor on more than four previously filed patent applications. No applicant or inventor had a gross income in the preceding calendar year exceeding the maximum qualifying gross income. And no applicant or inventor has assigned, or is obligated to assign, an ownership interest to an entity whose gross income exceeded that limit.

What is the micro entity gross income limit?

The maximum qualifying gross income is $251,190, effective September 9, 2025. The figure is set by statute at three times the median household income for the preceding calendar year as most recently reported by the Bureau of the Census, so it moves. Each inventor and each non-inventor applicant must individually be under it.

How much do micro entities save on USPTO fees?

Micro entity status carries an 80 percent reduction on most USPTO patent fees. That is on top of, not in addition to, small entity status: you claim one tier, and micro is the deeper discount of the two.

Which previously filed applications count toward the four-application limit?

Provisional applications do not count. Neither do international applications for which the national stage fee was not paid, nor applications you assigned to a previous employer as a result of that employment. The limit is on applications you were named as an inventor on, not applications your company filed.

Can a university employee claim micro entity status?

Yes, on a separate basis. Under 37 CFR 1.29(d) an applicant qualifies if the majority of their income comes from an institution of higher education as defined in the Higher Education Act, or if they have assigned or are obligated to assign ownership to such an institution. That route has no income test of its own and uses form PTO/SB/15B.

Which form certifies micro entity status?

PTO/SB/15A certifies the gross income basis. PTO/SB/15B certifies the institution of higher education basis. The certification must be signed and filed, and it must be current at the time each fee is paid at the micro rate.

What happens if you lose micro entity status mid-prosecution?

You file a notification of loss of entitlement before or with the next fee paid, and you pay subsequent fees at the correct rate. Losing status is not a penalty and does not damage the application. Failing to notify, and continuing to pay reduced fees, is the problem.

What is the consequence of a false micro entity certification?

Certifying micro entity status improperly is a serious matter. It can be treated as fraud on the Office, which puts the resulting patent's enforceability at risk, and the USPTO has statutory penalties for false assertions of entity status. When status is genuinely uncertain, pay at the small entity or undiscounted rate and keep the patent clean.

The income limit and the fees above were taken from uspto.gov on September 4, 2026 and are revised periodically. This is a practitioner's explainer, not legal advice on your entity status. If the answer is close, ask before you certify: contact the firm. See also the Track One guide.

Not sure which entity rate applies to your filing?

Contact the firm