Nohena Insights · Origin & AfCFTA
How AfCFTA rules of origin determine tariff preference
To qualify for preferential tariffs under the AfCFTA, goods must originate from a member state. This is determined by meeting criteria for either regional value content (RVC) or a change in tariff heading (CTH).
Nohena · 13 October 2026 · 10 min read
How AfCFTA rules of origin work
To qualify for preferential tariffs under the African Continental Free Trade Area (AfCFTA), goods must originate from a member state, a status determined primarily by meeting criteria for either regional value content or a change in tariff heading. The AfCFTA agreement is designed to create a single market for goods and services across Africa, but its benefits are reserved for products that are genuinely from the continent. Rules of origin are the mechanism for enforcing this principle, preventing goods from outside the bloc from simply being trans-shipped through a member state to avoid duties.
For a licensed customs agent or an importer in Nigeria, understanding these rules is not an academic exercise. It is a core requirement for accurately preparing a customs declaration that claims preferential duty rates. An incorrect origin claim can lead to the denial of benefits, payment of full duties, and potential penalties from the Nigeria Customs Service (NCS). The two primary methods for establishing origin for manufactured goods are substantial transformation tests, which we will explore in detail.
What are the AfCFTA rules of origin?
The AfCFTA rules of origin are a uniform set of criteria used to determine the national source of a product, ensuring that only goods genuinely produced within the free trade area receive preferential tariff treatment. These rules, detailed in Annex 2 to the Protocol on Trade in Goods, provide a consistent framework for all participating state parties. They are essential for maintaining the integrity of the free trade area.
Goods can acquire originating status in two main ways:
Wholly obtained. These are products that are entirely grown, harvested, mined, or born and raised within a single AfCFTA member state. Examples include minerals extracted from the soil, live animals born and raised there, or agricultural crops harvested in that country. These goods have no non-originating inputs.
Substantially transformed. These are products manufactured using materials from non-member countries (non-originating materials) but which have undergone sufficient production or processing within an AfCFTA country to be considered a product of that country.
Substantial transformation is proven using one of three main methods, though the first is less common:
A specific manufacturing or processing operation that confers origin.
A change in tariff classification.
An ad valorem or value content percentage rule.
For most manufactured goods, practitioners will primarily engage with the change in tariff heading (CTH) and regional value content (RVC) tests.
The regional value content (RVC) test explained
The regional value content test requires that a specific percentage of a product's value, generally around 40%, must be added within the AfCFTA zone for it to qualify as originating. This test focuses on the economic value contributed by AfCFTA member states to the final product. It ensures that a significant portion of the product's worth comes from local materials, labor, and overhead, rather than just minimal assembly of foreign parts.
How to calculate regional value content
The RVC is calculated as a percentage of the final value of the goods. While the AfCFTA provides a few formulas, a common approach is the build-down method, which is based on the ex-works price.
The formula is: RVC = ((Ex-Works Price - Value of Non-Originating Materials) / Ex-Works Price) x 100
Let's define the key terms:
Ex-Works Price (EXW). This is the price of the product paid to the manufacturer at the factory gate, before any shipping, insurance, or export costs are added. It represents the value of the good as it leaves the production line.
Value of Non-Originating Materials (VNM). This is the customs value (typically the cost, insurance, and freight, or CIF price) of all materials used in production that were imported from countries outside the AfCFTA.
For example, a company in Kenya assembles smartphones for export to Nigeria. The ex-works price of each phone is $200. The production uses $130 worth of non-originating components (screens, processors, memory) imported from Asia. The RVC would be calculated as follows:
RVC = (($200 - $130) / $200) x 100 = ($70 / $200) x 100 = 35%
If the product-specific rule for this smartphone requires an RVC of at least 40%, this product would not qualify for AfCFTA preferential treatment. The manufacturer would need to increase the local value-add, perhaps by sourcing more components from within the AfCFTA zone, to meet the threshold.
The change in tariff heading (CTH) test explained
The change in tariff heading test requires that a product's final Harmonized System (HS) code is different from the HS codes of the non-originating materials used in its production. This rule operates on the principle that if processing is significant enough to change a product's fundamental character, its classification within the HS nomenclature should also change. It is a widely used method in modern trade agreements.
Nigeria's tariff book is based on the ECOWAS Common External Tariff (CET), which extends the international six-digit HS code to ten digits for greater specificity. The CTH rule can apply at different levels of the HS code:
Change in Chapter (CC). The first two digits of the HS code must change. This signifies a very significant transformation.
Change in Heading (CTH). The first four digits of the HS code must change. This is the most common requirement.
Change in Subheading (CTSH). The first six digits of the HS code must change.
An example of a CTH rule
Consider the production of fruit juice (HS heading 2009) in South Africa using imported, unfermented grape must (HS heading 2009) and imported sugar (HS heading 1701).
Non-originating material 1. Sugar from Brazil, classified under HS heading 1701.
Non-originating material 2. Unfermented grape must from Argentina, classified under HS heading 2009.
Final product. Packaged grape juice, classified under HS heading 2009.
If the product-specific rule for juice requires a change at the heading level (a CTH), this product would not qualify. The grape must started in heading 2009 and the final product is also in heading 2009. Even though sugar from a different chapter (17) was used, the presence of a non-originating material that does not change its heading disqualifies the final good under this rule.
How to choose between RVC and CTH
The choice between applying the regional value content or change in tariff heading test is determined by the product-specific rules of origin (PSROs) outlined in Appendix IV to Annex 2 of the AfCFTA agreement for that particular good. It is not always an exporter's choice; the rules for a specific HS code may mandate one test, allow either, or present a combination.
When the rules do offer a choice, the exporter or producer should select the criterion that is easier to satisfy and document. The following table provides a framework for this decision.
Comparing AfCFTA RoO with the ECOWAS trade liberalisation scheme
While both the AfCFTA rules of origin and the ECOWAS Trade Liberalisation Scheme (ETLS) aim to promote regional trade, they are distinct systems with different membership, specific rules, and administrative requirements. A product qualifying under one scheme does not automatically qualify under the other.
Scope. ETLS is limited to the 15 ECOWAS member states. The AfCFTA includes the vast majority of the 55 African Union member states that have signed the agreement.
Rules. The ETLS has two main criteria for manufactured goods: either local or regional raw materials must constitute at least 60% of total raw materials, or the value added from production must be at least 30% of the ex-factory price. The AfCFTA's rules, with its detailed product-specific requirements for CTH and RVC (often around 40%), are more aligned with global trade agreement standards.
Levies. Goods traded under the ETLS are exempt from import duties, but they are still subject to the 0.5% ECOWAS Community Levy in the importing country. The AfCFTA's long-term goal is the progressive elimination of tariffs.
Documentation. Claiming preference requires a specific Certificate of Origin for each scheme. An ETLS Certificate of Origin is used for intra-ECOWAS trade, while an AfCFTA Certificate of Origin is needed for trade under the continental agreement.
Exporters and importers operating in West Africa must assess which scheme offers a better advantage for a given transaction and ensure they meticulously follow the correct procedure. For more analysis on trade compliance, see our other insights for practitioners .
Documentation and verification for AfCFTA preference
To claim preferential treatment under the AfCFTA, an importer must present a valid AfCFTA Certificate of Origin to the customs authority of the importing country, which serves as prima facie evidence that the goods meet the required rules. This document is the cornerstone of a preferential claim. The burden of proof rests with the exporter who obtains the certificate and the importer who claims the benefit.
The key documents are:
AfCFTA Certificate of Origin. Issued by a designated competent authority in the exporting country, it certifies that the goods listed meet the origin criteria.
Origin Declaration. For certain approved exporters, an origin declaration on a commercial document like an invoice may substitute for a formal certificate.
Supporting Records. Exporters must be prepared to prove their claim. This requires keeping detailed records for at least five years, including the bill of materials, supplier declarations for originating materials, production cost breakdowns, and evidence of the production process.
The Nigeria Customs Service has the authority to verify any origin claim. If there are doubts, the NCS can request further information from the importer or initiate a verification request with the competent authority in the exporting country. If the origin cannot be substantiated, the NCS will assess the standard MFN duty rate, which for many goods is between 5% and 20%, plus the 7.5% VAT. Using a decision support platform can help structure this evidence systematically. Nohena prepares a lodgement-ready pack for the licensed agent, helping to ensure all documentation is coherent before a declaration is considered.
FAQ
Can a product qualify under both RVC and CTH?
This depends entirely on the product-specific rule of origin applicable to that good's HS code. Some rules are co-equal, allowing the exporter to choose the criterion that is easier to meet and document. Other rules may be cumulative, requiring both a CTH and an RVC threshold to be met. Finally, some rules are exclusive, mandating only one specific test.
What happens if my goods fail a verification check?
If the Nigeria Customs Service conducts a verification and determines the goods do not meet AfCFTA rules of origin, preferential tariff treatment will be denied retroactively. The importer will become liable for the full most-favoured-nation (MFN) duty rate that should have been paid initially. The NCS may also apply penalties for making an incorrect declaration.
Is the AfCFTA Certificate of Origin digital?
The AfCFTA framework provides for electronic certificates of origin. Member states are in the process of implementing the necessary digital infrastructure to issue, transmit, and verify certificates electronically. This is intended to reduce administrative burdens, combat fraud, and accelerate clearance times, moving away from paper-based systems.
Do goods transiting a non-member country lose their originating status?
Not necessarily, provided the conditions of the non-manipulation or consignment rule are met. Originating goods can be transported through a non-AfCFTA country and retain their status if they remain under customs supervision in that country. They must not undergo any operation beyond what is necessary for their preservation or transport, such as unloading, reloading, or splitting consignments.