Fees effective January 19, 2025 · Last revised May 1, 2026 · All fees in USD · Source: USPTO Official Fee Schedule
USPTO · Patent Filing Cost Calculator

Know Your Exact Filing Costs

Input your entity status, filing format, and invention details to get real USPTO fee breakdowns with surcharge warnings.

File SB/15A or SB/15B with each application. ≤4 prior nonprovisionals + income ≤ ~$239,583.

Micro Entity Application Count
1 / 4
nonprovisionals filed (this calculator)
✓ Within micro entity limit (3 nonprovisionals remaining)

Provisional applications do not count toward this limit.

#1
Fee37 CFRAmount
Basic filing fee — Utility1.16(a–d)$70
Search fee1.16(k–n)$154
Examination fee1.16(o–r)$176
Total to file today$400
Issue fee (on allowance)1.18(a–c)$258
Maintenance — 3.5 year1.20(e)$430
Maintenance — 7.5 year1.20(f)$808
Maintenance — 11.5 year1.20(g)$1,656
Total lifetime cost (if granted + maintained)$3,552
Save Money Checklist
  • File via Patent Center (electronic) — saves $200/application
  • Use DOCX format — saves $86/application (micro rate)
  • File SB/15A with each application to claim micro entity status
  • File provisionals at $65 each — lock priority dates, don't count against the 4-app limit
  • File before 6 years from earliest evidence — avoid the $540 surcharge
Prior Art Protection

Generate a Proof-of-Build certificate to timestamp your earliest evidence. The earliest_evidence date maps directly to the 6-year and 9-year surcharge triggers above.

Generate Certificate →

This calculator is for estimation only. Always confirm fees at uspto.gov before filing. Not legal advice.