Patent Annual Renewal —
Keep Your Patent in Force
for the Full 20 Years
A granted patent does not maintain itself. Annual renewal fees must be paid from the end of the second year after filing — every year without exception — to keep the patent alive for its full 20-year term. Miss one payment and the patent lapses. TaxClue tracks every renewal deadline across your entire patent portfolio and pays on time, every time.
Renew Your Patent Now
Renewal filed within ✅ 1–2 working days
Patent Renewal Fees — All 18 Years, All Applicant Categories
Renewal fees are due at the end of each year from Year 2 onwards, calculated from the filing date. Fees increase in blocks — earlier years are cheaper; later years cost significantly more. Startups pay as little as 1/5th of large entity rates.
* E-filing discount of 10% applies. Grace period surcharge: 10% of renewal fee per month up to 6 months. All fees per patent, per year.
What Happens When a Patent Lapses — and How to Restore It
⚠️ When a Patent Lapses
Automatic consequence of missing the renewal deadline + 6-month grace period
🔄 Restoring a Lapsed Patent — Section 60
Application for restoration must be filed within 18 months of the lapse date
How TaxClue Handles Your Patent Renewal — 3 Steps
Status Verification
TaxClue verifies the patent number, filing date, current renewal status, and applicable fee category on the IPO portal. Confirms the correct renewal year and fee amount due.
Same dayFee Calculation & Payment
Renewal fee calculated including any applicable grace period surcharge. Form 4 (Request for Extension of Time / Renewal) prepared. Govt. fee paid on the IPO e-filing portal.
Day 1–2Receipt & Reminder Set
Renewal receipt from IPO obtained and shared with client. TaxClue sets the next year's renewal reminder automatically — so this year's renewal is never the last one tracked.
Day 2❓ Frequently Asked Questions
The first renewal fee is due at the end of the second year after the date of filing — not the grant date. For example, if the patent was filed on 15 March 2020, the first renewal is due on or before 14 March 2022 (end of Year 2). This applies even if the patent has not yet been examined or granted — renewal fees are calculated from the filing date, not the grant date. TaxClue tracks renewal dates from filing, not from grant, ensuring the first renewal is never missed due to this common misconception.
Yes — there is a 6-month grace period under Section 53(2) of the Patents Act. The renewal fee can be paid within 6 months of the due date by paying a surcharge of 10% per month of delay (not compounding). For example, if the fee is ₹4,000 and it is 3 months late, the total payable is ₹4,000 + ₹1,200 surcharge = ₹5,200. If the fee is still not paid within the 6-month grace period, the patent lapses automatically. TaxClue sends reminders at the due date and tracks whether clients are within the grace period, calculating the exact surcharge due.
Yes — the Indian Patent Office permits advance payment of renewal fees. You can pay multiple years in advance in a single transaction if you wish to reduce administrative burden. TaxClue recommends paying 1–2 years at a time for active patents rather than paying all years upfront — because if you decide to abandon the patent or assign it before expiry, prepaid renewal fees are not refunded by the IPO. For patent portfolios with multiple patents, TaxClue batches renewal payments to minimise transaction costs and administrative overhead.
After a patent assignment, the obligation to pay renewal fees passes to the assignee (new owner) from the date the assignment is registered with the IPO. Until the assignment is registered, the assignor remains the registered proprietor and is formally responsible for renewals. In practice, the assignment agreement should clearly specify who pays renewals during the transition period between signing and IPO registration. TaxClue coordinates renewal responsibility when handling patent assignments — ensuring there is no gap in renewal coverage during the transfer process.
⚠️ Renewal Mistakes That Kill Patents
These errors permanently destroy valuable IP rights — and are almost always avoidable:
- Calculating renewal due date from grant date instead of filing date — results in late payment and potential lapse
- Missing the renewal entirely with no tracking system — patent lapses without notice from the IPO
- Paying at the wrong entity category — overpaying or, worse, underpaying which leaves the renewal invalid
- Assuming the IPO will send a reminder — it will not; the patentee bears sole responsibility for tracking
- Missing the 18-month restoration window after lapse — restoration becomes permanently impossible
- Not tracking renewals after a patent assignment — new owner unaware of upcoming due dates
Complete Patent Lifecycle with TaxClue
A Patent You Don't Renew Is a Patent You Don't Own
The IPO will not send you a reminder. One missed renewal fee ends 20 years of exclusive rights — and there is no recovery after 18 months. TaxClue tracks every renewal date, calculates exact fees, and pays on time, every year.
🔒 Confidential · 4.9★ · All 18 Renewal Years · Grace Period & Restoration · Portfolio Tracking · Registered Patent Agents