PCT National Phase US Entry 2026 Guide

Crossing into the United States from an international PCT application is a high‑leverage move—if you get the timing, fees, and formality choices right. This 2026 guide walks international inventors through PCT national phase US entry under 35 U.S.C. § 371, how it differs from filing a bypass continuation, what it costs this year, and a practical, step‑by‑step plan to file cleanly and avoid expensive traps.

PCT National Phase US: The Core Timeline and What It Means

Entering the US from a PCT requires filing a US application under 35 U.S.C. § 371 within 30 months of your earliest priority date. Missed it? In many cases you can revive by petition and fee if you act promptly—there is a short window to petition within two months of the missed deadline (https://ip-coster.com/IPGuides/pct-us). That 30‑month clock governs everything from translation planning to budgeting and attorney scheduling (https://www.uspto.gov/patents/basics/international-protection/patent-cooperation-treaty/pct-news-announcements).

At entry, you typically submit: a copy of the international application (or reference to it), an English translation if needed, an oath/declaration, the national stage fees, and your initial information disclosure statement (IDS). If you disclose foreign‑cited prior art within three months of US entry or before the first Office Action, you avoid IDS late fees tied to art you already knew about (https://ip-coster.com/IPGuides/pct-us).

Choosing Your Route: § 371 National Stage vs. Bypass Continuation

Most applicants enter via § 371 national stage because it preserves PCT‑derived benefits and can qualify for ISA/IPEA‑based discounts. In limited scenarios, you may prefer a “bypass” continuation (a US continuation of the PCT as a US application rather than a § 371 national stage). Both routes can get you examined, but they differ in costs and strategy:

• § 371 national stage: Eligible for a reduced basic filing fee if the USPTO acted as the International Searching Authority (ISA) or International Preliminary Examining Authority (IPEA), and potentially a $0 national stage exam fee if the ISA/IPEA was the USPTO and your claims meet PCT Article 33(1)–(4) standards (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).
• Bypass continuation: Treated procedurally like a regular US application; it does not rely on § 371 entry, so ISA/IPEA national stage discounts do not apply. Expect the standard base filing cost structure and be mindful of newly introduced continuing‑application age surcharges that kick in based on the age from the earliest benefit date—for large entities, $2,700 at 6+ years and $4,000 at 9+ years (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule; https://pierferd.com/insights/uspto-new-requirements-for-pct-national-stage-applications).

When speed is critical, some applicants consider Track One prioritized examination. For large entities, Track One adds a $4,000 surcharge in bypass filings; assess whether prioritized examination truly advances your commercial timeline before committing to that premium (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

PCT National Phase US Fees and Budgeting for 2026

Here are the headline 2026 figures for large (undiscounted) entities at the national stage. Always confirm your entity status—small and micro‑entity discounts can be substantial, and, by way of example, the national stage exam fee can be significantly lower for small entities (e.g., $352) if eligibility requirements are met (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

• Maintenance fees after grant are due at 3.5, 7.5, and 11.5 years from the issue date; each has a six‑month grace period (https://ip-coster.com/IPGuides/pct-us).
• The issue fee is due within three months of the Notice of Allowance (https://ip-coster.com/IPGuides/pct-us).

If the USPTO acted as ISA/IPEA, national stage entry can be materially cheaper thanks to the reduced basic fee and, in some cases, a waived national stage exam fee—one of several reasons many applicants stick to § 371 when eligible (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

PCT National Phase US: Step‑by‑Step Filing Strategy for 2026

Use this checklist to file cleanly and on time:

1) Monitor the 30‑month deadline. Calculate from the earliest priority date and docket a safety margin one to two weeks in advance. If you miss it, consult counsel immediately—revival by petition and fee may be available if you act within two months (https://ip-coster.com/IPGuides/pct-us).

2) Confirm your entry documents. Prepare the PCT application copy (or reference), any required English translation, inventor oath/declaration, and the national stage fee payment. Keep your specification and claims formatting US‑ready to manage size fees and claim‑count fees (https://ip-coster.com/IPGuides/pct-us; https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

3) Choose your route early. Compare § 371 national stage versus a bypass continuation. Factor ISA/IPEA‑based national stage discounts, the potential for age surcharges in continuing/bypass filings, and whether prioritized examination is truly necessary (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule; https://pierferd.com/insights/uspto-new-requirements-for-pct-national-stage-applications).

4) Lock in entity status. If you qualify as a small or micro entity, claim it properly to access 50–75% discounts. As a reference point, the national stage exam fee can be much lower for small entities (e.g., $352), which can materially influence your budget (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

5) File your IDS early. If you’re aware of foreign‑cited prior art more than three months before US entry, disclose promptly. Submitting your IDS within three months of entry or before the first Office Action avoids late IDS fees tied to known references (https://ip-coster.com/IPGuides/pct-us).

6) Budget for add‑ons. Model potential excess independent claims fees, size fees if you exceed 100 sheets, translation costs when needed, and any prioritized examination surcharges for bypass filings (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

7) Plan post‑grant costs now. Include 3.5/7.5/11.5‑year maintenance fees and internal reminders for grace periods; these long‑tail costs often get overlooked in early financial models (https://ip-coster.com/IPGuides/pct-us).

Avoiding Common Pitfalls in PCT National Phase US Entries

Even experienced teams stumble on process nuances that cause cost overrun or loss of rights. Watch for these traps:

• Missing the 30‑month deadline and failing to file a timely revival petition and fee within the two‑month window (https://ip-coster.com/IPGuides/pct-us).
• Blowing IDS timing and incurring fees for late‑submitted foreign art you already knew about more than three months pre‑entry (https://ip-coster.com/IPGuides/pct-us).
• Ignoring newly implemented continuing‑application age surcharges that hit older priority chains—$2,700 at 6+ years and $4,000 at 9+ for large entities (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).
• Under‑budgeting for post‑grant maintenance fees at 3.5/7.5/11.5 years, which can complicate portfolio ROI later (https://ip-coster.com/IPGuides/pct-us).
• Filing on paper and triggering a $400 non‑electronic filing surcharge instead of using electronic filing (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

Practical tip: create a single “entry pack” with the verified priority date, the 30‑month deadline and buffer, entity status documentation, and a prepared IDS of foreign references. Attach fee models for your claim strategy (e.g., staying at three or fewer independent claims if possible) so the budget aligns with prosecution strategy from day one.

2026 Changes Affecting PCT Entrants

A few 2025–2026 adjustments matter for planning:

• USPTO fee rule changes introduced continuing‑application age fees, adding a $2,700 surcharge for applications 6+ years from their earliest benefit date and $4,000 at 9+ years for large entities. This particularly affects bypass or other continuing filings leveraging older priority chains (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule; https://pierferd.com/insights/uspto-new-requirements-for-pct-national-stage-applications).

• WIPO’s January 1, 2026 updates adjusted USD equivalents for PCT fees due to CHF/USD exchange movements; for example, the electronic international filing fee around this period is reported near the mid‑$1,500 range, though you should always check the current schedule before filing (https://www.wipo.int/documents/d/pct-system/docs-en-fees.pdf; https://www.uspto.gov/patents/basics/international-protection/patent-cooperation-treaty/pct-news-announcements).

• As of April 1, 2026, the EPO search fee increased, impacting applicants who select the EPO for international search or examination; plan your global budgets accordingly (https://www.uspto.gov/patents/basics/international-protection/patent-cooperation-treaty/pct-news-announcements).

These changes don’t alter the 30‑month US entry rule, but they do affect whether you lean toward § 371 national stage (to capture ISA/IPEA‑based national stage discounts) or choose a bypass continuation for procedural flexibility.

PCT National Phase US: Frequently Asked Practical Questions

• Can I still enter the US if I miss 30 months? Often yes, if you act fast. File a petition to revive and the required fee within two months of the missed date. The sooner you move, the better your odds of a smooth recovery (https://ip-coster.com/IPGuides/pct-us).

• Do I need to translate my application? Only if the international application isn’t already in English. A translation fee applies if filed after the 30‑month date (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

• How many independent claims can I have without extras? Up to three. Each independent claim over that triggers an excess independent claim fee at national stage (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

• What about long specifications? If your total page count exceeds 100 sheets, expect size fees for each additional 50 sheets or fraction (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule).

• Should I use § 371 or a bypass continuation? If you want to leverage ISA/IPEA‑based national stage fee reductions and a possible $0 national stage exam fee (when the USPTO was ISA/IPEA and the claims satisfy PCT Article 33(1)–(4)), § 371 is often the more economical route. If you need procedural features of a regular US application—or your fact pattern makes § 371 less attractive—bypass can make sense, but factor in age surcharges and the lack of national stage discounts (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule; https://pierferd.com/insights/uspto-new-requirements-for-pct-national-stage-applications).

Bringing It Together: A 2026 Playbook

Here is a concise game plan you can customize:

• 90–120 days before 30 months: Lock the route (§ 371 vs. bypass), confirm entity status evidence, and prepare the application set and IDS. Align claim count to avoid excess independent claim fees where possible.
• 30–45 days before 30 months: Finalize translations (if any), update fee models for size and claim counts, and schedule filing. If considering Track One via a bypass filing, confirm that the speed premium aligns with your commercial needs.
• At entry: File electronically with all national stage requirements, pay the correct fees, and submit your IDS early to avoid late fees tied to known foreign references.
• After entry: Track the Notice of Allowance timeline; when it arrives, the issue fee is due within three months. Set maintenance‑fee reminders at 3.5, 7.5, and 11.5 years from the patent’s issue date, including the grace periods.

Handled this way, your PCT national phase US filings stay on schedule, budget‑aware, and ready for smooth prosecution.

Conclusion

The 30‑month deadline still rules PCT national phase US entry, but 2026 adds cost nuances—ISA/IPEA‑based national stage discounts, continuing‑application age surcharges for bypass filings, and evolving PCT‑related fee conversions. With early route selection, disciplined IDS timing, and tight claim and page‑count control, international inventors can enter the US market efficiently and avoid preventable fees (https://www.uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule; https://ip-coster.com/IPGuides/pct-us). If you need a second set of eyes on the plan, get help before the 30‑month clock runs down.

Get Help From GTC

Need a tailored plan for your PCT national phase US entry? Our patent team helps international founders model fees, choose the right route (§ 371 vs. bypass), and file on time. Start here: https://globaltrademarkcompany.com/services/patent or email hello@globaltrademarkcompany.com. We’ll help you get it right the first time.