Patent Filing Cost Calculator
Estimate the Indian Patent Office government fees for filing a patent — by applicant category, itemised live.
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Enter your figures — the result on the right updates as you type.
Government fee breakdown
Small Entity · e-filingGet your patent drafted & filed by an IP attorney
We run a prior-art search, draft the specification and file with the Indian Patent Office — end to end.
Disclaimer: Government fees only — professional fees are not included. Indicative estimate based on official IPO e-filing fees (First Schedule, Patents Rules, 2003, as amended). Physical-filing surcharge and post-grant renewal (annuity) fees are not included.
What it really costs to file a patent in India
The statutory government fees for a patent are paid to the Indian Patent Office (IPO) stage by stage — filing, examination and any optional requests. They depend entirely on your applicant category — an individual, startup or small entity (MSME) pays roughly one-fifth of what a large company pays, an ~80% rebate baked into the fee schedule.
Government fee schedule — e-filing
These are the official IPO e-filing fees. The first column applies to a natural person, startup or small entity; the second to any other applicant (companies and large entities).
| Fee item (e-filing) | Individual / Startup / Small | Others (Company) |
| Filing — Form 1 | ₹1,600 | ₹8,000 |
| Request for Examination — Form 18 | ₹4,000 | ₹20,000 |
| Each claim beyond 10 | ₹320 | ₹1,600 |
| Each page beyond 30 | ₹160 | ₹800 |
| Early publication — Form 9 | ₹2,500 | ₹12,500 |
Worked example
A straightforward complete application with a request for examination, 10 claims and 30 pages — no excess, no early publication. Government fees only:
Key terms explained
Provisional vs complete
A provisional specification locks in your priority date early and cheaply while the invention is still being refined. You must file the complete specification within 12 months, or the application lapses.
Request for Examination (RFE)
The IPO does not examine an application until you file Form 18. Without an RFE the application is treated as withdrawn, so this fee is effectively mandatory to move toward grant.
Excess claims & pages
The base fee covers the first 10 claims and 30 pages. Each additional claim and page carries a per-unit fee, so tight, well-drafted specifications keep costs down.
Early publication
Applications publish automatically at 18 months. Filing Form 9 publishes sooner, which can start your provisional rights earlier — useful if you need to enforce quickly, but it is optional.
Questions people ask
Short answers on Patent Filing Cost Calculator. Tap a question to open it.
01What does it cost to file a patent in India?
The government fee depends on the applicant category — a natural person, startup or small entity pays the lowest slab, and other applicants several times that. Fees are charged at filing, for early publication if requested, for the request for examination and for each year of renewal. Attorney and drafting charges are not included in this calculator.
02What is a provisional application and should I file one?
A provisional specification establishes a priority date without a complete disclosure, giving you twelve months to file the complete specification. It is useful when the invention is still evolving or funds are limited, but the complete specification must be filed within twelve months or the application lapses.
03When must examination be requested?
A request for examination must be filed within the prescribed period from the priority date, or the application is treated as withdrawn. Expedited examination is available for startups, small entities, female applicants and certain other categories at a higher fee.
04How long does a patent take and how long does it last?
Grant commonly takes three to five years. A patent lasts 20 years from the filing date, subject to payment of renewal fees from the third year onwards.
05What is not patentable in India?
Section 3 excludes, among others, a mere discovery of a scientific principle, a method of agriculture or horticulture, a business method, a computer programme as such, a mathematical method, and methods of medical treatment.
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Disclaimer: This tool gives indicative results for general guidance only and is not professional advice. Please verify with a qualified CA before acting on the numbers.