Inward processing: import, transform and re-export without paying duty (2026)
Import to transform, not to consume
A Mumbai garment factory imports $120,000 of synthetic fabric, cuts and stitches it into branded apparel, then ships the entire run to a European retailer. Should it pay Indian customs duty on fabric that never enters the local market? The answer is no — provided it uses inward processing (in India, the Advance Authorisation scheme).
This customs special procedure rests on a simple idea: goods that enter a territory only to be worked on and then leave have no reason to bear import duty. Taxing those inputs would handicap a country's export industry against global competitors. Inward processing suspends import duty and VAT for the duration of the transformation and cancels them on re-export.
It is one of the most powerful — and most underused — levers for contract manufacturers, assemblers and repairers. This guide explains the mechanism, the authorization conditions, the discharge pitfalls, and gives three worked examples for the UK, India and the US.
What is inward processing?
Inward processing (inward processing relief, or IPR) is a procedure that lets you import non-domestic goods into a customs territory with duty and tax suspended, on condition they are processed, worked on or repaired, then re-exported outside the territory as processed products.
In the UK it is run by HMRC as Inward Processing (IP). In India, the closest equivalents are the Advance Authorisation scheme (DGFT, under the Foreign Trade Policy) and MOOWR (Manufacture and Other Operations in Warehouse). In the US, the same economic effect is achieved through manufacturing drawback (19 U.S.C. 1313) or a Foreign-Trade Zone, where duty is suspended or refunded on inputs that leave again.
Three concepts sit at the core of the procedure:
- Authorization: granted by customs before the first import, it fixes the scope of operations.
- Rate of yield: the quantity of processed product obtained per unit of imported goods, used for control.
- Bill of discharge: closing the procedure by re-export (or another approved disposal) within the deadline, failing which a customs debt arises.
Inward processing by jurisdiction (2026)
The mechanism exists almost everywhere, under different names. A correspondence table for the main markets:
| Jurisdiction | Scheme name | Legal basis | What is suspended |
|---|---|---|---|
| United Kingdom | Inward Processing (IP) | UK customs (post-Brexit) | Duty + import VAT |
| European Union | Inward processing | UCC art. 256-258 | Duty + import VAT |
| India | Advance Authorisation / MOOWR | Foreign Trade Policy (DGFT) | Basic customs duty |
| United States | Manufacturing drawback / FTZ | 19 U.S.C. 1313 | Duty refunded or suspended |
| Morocco | ATPA (temporary admission) | ADII customs code | Duty + import VAT |
| UAE | Free zone / re-export | Federal customs law | Duty (5%) suspended |
Key takeaway: everywhere the principle is the same — no duty on what does not stay. What changes is the paperwork (the UK, EU and India require detailed stock accounting) and the VAT treatment, usually suspended at import and out of scope on re-export.
Conditions and obligations
Inward processing is not an automatic right; it comes with strict obligations.
Get the authorization
The application filed with customs describes the imported goods (HS code — see our customs valuation guide), the processing operations, the projected rate of yield and the discharge period. In the UK and EU, customs also checks economic conditions: the procedure must not harm domestic producers. For most routine operations these conditions are deemed met.
Keep stock accounting
This is the most demanding obligation. You must be able to link each suspended imported item to the re-exported processed product, lot by lot, through compliant stock records. A post-clearance audit always starts here: if customs cannot rebuild the flows, it reclassifies the missing quantities as dutiable home-use entries.
Discharge on time
The procedure must be closed by re-export (or another approved treatment: warehousing, a free zone, supervised destruction) within the set deadline. The bill of discharge reconciles what came in, what went out, and justifies losses through the rate of yield.
Three worked examples
Example 1: garment contract manufacturing (India)
Fabric import (China) = USD 120,000 CIF
Indian basic customs duty on fabric ≈ 10-20% (by HS line)
Without scheme: ~ USD 12,000-24,000 duty advanced
Under Advance Authorisation: duty = USD 0
Apparel re-exported to EU → obligation discharged
Cash preserved per cycle = USD 12,000-24,000
This is exactly what keeps export-oriented manufacturing competitive: the factory never bears duty on inputs that leave again. The duty rate is shown as a range because it varies by fabric composition — treat it as an estimate and confirm the exact HS line before filing.
Example 2: electronics assembly (UK)
Components import (Taiwan) = GBP 32,000 CIF
Average component duty ≈ 3-4% → ~ GBP 1,150
Import VAT (20%) on 32,000 = GBP 6,400
Under Inward Processing: GBP 0 at import
Assembled boards re-exported → discharged
Total suspension = ~ GBP 7,550
Here VAT weighs more than the duty itself. Even when recoverable, advancing GBP 6,400 ties up cash for the refund cycle. Inward processing clears both at once, provided the finished product genuinely leaves the UK.
Example 3: repair then return (US drawback)
Machine entering for repair = USD 70,000
Without relief: duty on the full 70,000 at entry
Via TIB / drawback: duty suspended or refunded
Only the added value (parts + labor) matters on return
Saving = duty avoided on the machine's full value
Repair is a processing operation in its own right. Without relief, bringing in a $70,000 machine just to fix it and send it back would attract duty on its full value — absurd, since it does not stay. Inward processing (or, for temporary professional equipment, the ATA carnet) solves this.
Size the saving on the TRADE-COST calculator
Compare the import cost with and without suspension: enter value, origin and HS code to see the duty and VAT inward processing spares you from fronting.
Run calculation →A powerful procedure earned through rigor
Inward processing turns an import cost into a temporary suspension — as long as you honor the traceability deal. Authorization, rate of yield and discharge are not formalities: they are the three points where customs waits for you in an audit. Clean stock accounting beats any commercial argument.
To dig deeper, compare with duty drawback (refund after the fact), the customs procedure 42 for import VAT, and our free zones guide, the alternative when production stays on site longer.
Frequently asked questions
How is inward processing different from duty drawback?+
Both remove duty on imported inputs that are later re-exported, but the timing differs. Under inward processing (a suspension procedure) you never advance the duty or import VAT — they are suspended during processing and cancelled on re-export. With drawback, you pay duty at import and claim it back after re-export. Inward processing protects your cash flow up front, which suits recurring production flows; drawback fits one-off re-exports decided after the fact. See our [duty drawback guide](/en/blog/drawback-douanier) for the refund mechanics.
Do I need prior authorization, and how long does it take?+
Yes. Inward processing is an authorized procedure: no company can use it without customs approval obtained beforehand (HMRC in the UK, DGFT for India's Advance Authorisation, CBP/the FTZ Board in the US). The application sets out the imported goods, the processed products, the rate of yield and the discharge period. In the UK and EU, processing typically runs 30 to 120 days depending on complexity and the economic-conditions test. Retroactive authorization exists only in narrow cases — apply before your first import.
What is the rate of yield and why does customs watch it?+
The rate of yield is the quantity of processed product obtained from a given quantity of imported goods (for example 0.92 sq ft of finished leather per sq ft of raw hide, the rest being offcuts). Customs uses it to confirm that everything entered under suspension is properly re-exported or otherwise discharged. An unexplained gap suggests part of the goods were diverted to the domestic market without paying duty — it is the number-one checkpoint in a post-clearance audit.
What happens if I miss the re-export deadline?+
The procedure is not discharged and a customs debt arises. You must release the goods for free circulation — meaning you pay the import duty and VAT that were originally suspended, plus compensatory interest accrued over the suspension period. Always request an extension of the discharge period before it lapses rather than letting the procedure expire; customs usually grants it when the commercial justification is solid.
Can I use equivalent goods instead of the actual imported items?+
Yes, under conditions. Equivalent goods let you process domestic goods of the same quality and technical characteristics as the imported ones and re-export, without physically tracing each lot. Prior export goes further: you may re-export the finished product before importing the corresponding inputs, then reconcile. These facilities smooth production but demand flawless stock accounting, because customs rebuilds the flows from your records.
Marie Fontaine
Marie leads customs research at TRADE-COST. She spent eight years in tariff classification and post-clearance audits before joining the product team to turn customs expertise into software.
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