1. Check You Were Entitled Before You Chase Anything
Every post-importation route we've read starts with the same gate. The goods must have qualified on the day they came in. The New Zealand agreement allows a refund "provided that the good would have qualified for preferential tariff treatment when it was imported" (Chapter 3, Article 3.24 (opens in a new tab), Verified). Australia's regulation talks about goods that "would have been Indian originating goods if, at the time the goods were imported, the importer held a certificate of origin" (Customs (International Obligations) Regulation 2015, item 10B (opens in a new tab), Verified).
So the first question is dull but decisive. Was the agreement in force on your entry date? If not then there's nothing to claim, because the rate didn't exist yet. The date logic, including the New Zealand start on 20 October 2026, is on FTA duty phase-downs.
The second question is whether a valid proof can still be issued for that shipment. Under the NZ agreement a proof may be issued retrospectively no later than 12 months after importation (Article 3.15 (opens in a new tab), Verified). ECTA certificates for Australia can be issued retrospectively up to 12 months after export (ABF guide 2023, via the Australia page, Supported). Past that point no agency in India will issue it, and no amount of paperwork on your side fixes that.
The third question is the one our US seller learned the hard way. Were you the importer of record? The refund belongs to whoever paid on the entry, and when a supplier ships on its own courier account that's usually the courier. If that's you then the claim goes through the courier, and some won't bother. The full courier trap is on low-value imports. Whether your product qualifies at all is on rules of origin, and which document counts as proof under each agreement is on certificate of origin.
2. Australia: Items 10A and 10B, Four Years on Paper
Australia is where most India refunds happen today, because ECTA has put every line at 0% since 1 January 2026 and the certificate is often the last thing to arrive. The refund circumstances sit in a table in the Customs (International Obligations) Regulation 2015. Item 10A covers Indian originating goods where duty has been paid. Item 10B covers goods that would have been originating had you held the certificate at import, provided you hold "a certificate of origin ... or a copy of one, for the goods at the time of making the application for the refund" (s.23 (opens in a new tab), Verified).
The application "must be made within 4 years after the day on which the duty was paid" (s.28(2) (opens in a new tab), Verified), and the Collector can ask you to back it up with a declaration or your commercial documents (s.29). Your broker lodges it in the Integrated Cargo System against the original declaration. The reason code the freight industry cited at entry into force is 23A10A, with the advice that importers "should have a valid COO or a copy of one at the time of seeking a refund" (AU freight association, December 2022, Reported). The ABF's own refund page refused our connection, so have your broker confirm the code in the system.
A copy is enough, and the regulation says so twice. That matters when the original is still sitting in a courier bag somewhere between Tiruppur and Melbourne.
Here's the part that catches people. Four years sounds generous, but the certificate itself can only be issued up to 12 months after export. So the real deadline for a missing certificate is the Indian one, and it's a quarter of the Australian one. If your supplier hasn't applied within the year then the four years are worth nothing.
3. New Zealand: A Guaranteed Route, a Window Still to Publish
From 20 October 2026, Article 3.24 requires New Zealand to let an importer "apply for preferential tariff treatment and a refund of any excess duties paid" where no claim was made at import. New Zealand may ask for the claim, a copy of the proof and other documents "not later than 12 months after the date of importation or a longer period if specified in the importing Party's laws" (Article 3.24 (opens in a new tab), Verified). So 12 months is the floor, not the ceiling.
New Zealand Customs lists refunds where there's "a duty concession available for the goods you have imported which hasn't been applied", and tells businesses to "contact your Customs Broker to discuss how to apply" (NZ Customs, refunds and drawbacks (opens in a new tab), Verified). The page states no time limit, and the legislation site refused our connection, so the statutory window is Unknown to us. Work to 12 months and you can't be wrong.
The agreement also protects you during a check. If Customs opens a verification it must release the goods against duty or security, and if they're then found originating it must "immediately restore preferential benefits and promptly" refund the excess (Article 3.25 (opens in a new tab), Verified). Pay, document it and keep going. Refusing to pay only leaves your goods at the wharf.
HMRC's preference guidance covers this in one line: "You may be able to claim back some or all of the Customs Duty if you paid it but later get a valid proof of origin" (HMRC (opens in a new tab), Verified). The repayment itself runs through the general process. If the declaration was made on the Customs Declaration Service then you claim in CDS, otherwise on online form C285, and agents, forwarders and express operators can claim for you. The limit is "3 years for overpayments" (HMRC repayment guidance (opens in a new tab), Verified).
Now the trap. The UK-India agreement lets HMRC require a late preference claim within a year of import (CETA Chapter 3, Article 3.20, via the UK page, Supported). HMRC's three years and the agreement's one year are two different limits, and we haven't seen HMRC say which governs a CETA claim. We wouldn't test it. File inside 12 months and the question never comes up.
One small practical point that trips overseas sellers - "repayments of import duty and VAT can only be made to a UK bank account" (HMRC (opens in a new tab), Verified).
5. United States: No FTA, but Real Money Anyway
There's no US-India trade agreement, so there's no preference to recover (importing from India to the US). US refunds still matter, and they're exactly what our seller in the opening was chasing. Classification and valuation mistakes are refundable, and so are the IEEPA tariffs now being paid back.
Before liquidation, your filer lodges a post-summary correction in ACE "within 300 days from the date of entry and up to 15 days of the scheduled liquidation date, whichever date is earlier" (CBP (opens in a new tab), Verified). After liquidation the correction route closes and you protest instead, within 180 days of the liquidation or decision, by the importer, consignee, their surety or anyone who paid the charge (19 CFR 174.12 (opens in a new tab), Verified).
IEEPA duties have their own process, CAPE. CBP is blunt about who can use it: "Only the IOR or the licensed customs broker who filed the entries can file a CAPE Declaration", and it currently takes unliquidated entries and some entries within 80 days of liquidation (CBP, IEEPA duty refunds (opens in a new tab), Verified, read 28 September 2026). That's the courier trap in one sentence. If FedEx was the importer then FedEx files, and you're asking FedEx nicely.
6. European Union: The Customs Code, Three Years
The EU-India agreement isn't in force, so there's no FTA duty to reclaim yet. GSP is, where India still holds it for your product's section, and a missed GSP claim uses the same route the FTA will. Article 116 of the Union Customs Code allows repayment for overcharged amounts, defective goods, an error by the authorities and equity (European Commission (opens in a new tab), Verified).
The limit under Article 121 is three years from notification of the customs debt for overcharged amounts, one year for defective goods, and the clock stops while you appeal the debt (Commission guidance on repayment and remission (opens in a new tab), Verified). You apply to the customs authority of the member state that collected the duty, not to Brussels.
7. UAE: The Risk Runs the Other Way
We haven't read the UAE Federal Customs Authority's refund procedure, and we won't describe it from memory. What we do have is a story that points in the opposite direction. An exporter in Karnataka routed a shipment to the UAE under CEPA and "on post-clearance review, customs denied the concessional rate entirely" (Indian law firm, August 2026 (opens in a new tab), Reported). A logistics firm reports the same failure with the certificate "filed incorrectly" (April 2026 (opens in a new tab), Reported).
So in the UAE the question is less "can I get it back" and more "will they come back for it". Get the certificate right before the goods ship and ask your broker there about the refund route.
8. The Evidence Every Broker Will Ask For
The lists differ in wording, not in substance. Pull these together before you pick up the phone -
- the entry or declaration number and the date duty was paid
- the proof of origin for that exact shipment, with an invoice number that matches the commercial invoice and, for Indian goods, the shipping bill
- the commercial invoice showing the value and "the amount that should have been paid" (HMRC (opens in a new tab), Verified)
- the bill of lading or air waybill and the packing list
- the supplier's bill of materials and input origins, if asked, since under the NZ agreement importers keep origin records for five years (Article 3.22 (opens in a new tab), Verified)
- written authority for your broker and bank details in the right country
Is that a lot of paper for one refund? It is, and it's also the same file a verification officer will ask for two years later. Build it once, the week the goods clear.