The Real Exchange Rate Nigerians Pay for Imports: CBN Rate or Black Market Rate?

When Nigerians discuss the price of imported goods, the conversation usually starts with the exchange rate. Once the naira weakens against the dollar, sellers quickly announce that replacement costs have gone up. When the naira strengthens, buyers expect prices to fall at the same speed. That expectation often leads to arguments because the rate published by the Central Bank of Nigeria is not always the rate an importer used to obtain foreign currency. To understand the real cost of imports, we must separate the exchange rate used to buy foreign currency from the rate used to calculate Customs duties.

The short answer is that Nigerians do not pay only the Central Bank rate or only the black market rate. The importer may buy dollars through a bank, a Bureau de Change or the parallel market, depending on access and urgency. Nigeria Customs then uses an official reference rate to convert the Customs value of the goods into naira. Other costs are added before the goods reach a shop, warehouse or customer. The final price therefore reflects a mixture of foreign currency costs, Customs valuation, taxes, shipping expenses, port charges and the importer’s profit margin.

The Central Bank of Nigeria adopted a willing buyer, willing seller system for trade transactions in June 2023. Under this arrangement, exchange rates in the Nigerian Foreign Exchange Market are mainly determined by demand and supply. The previous foreign exchange windows were consolidated into what is now called the Nigerian Foreign Exchange Market. Eligible transactions can be processed through deposit money banks, although eligibility does not guarantee that every importer will receive foreign currency immediately. The existence of an official market does not remove the problem of limited access, delayed documentation or urgent payment deadlines. Central Bank of Nigeria

An importer who receives foreign currency from a bank will normally pay the rate offered by that bank for the transaction. That rate may be close to the published official market rate, but it may not be exactly the same figure seen in a newspaper or on social media. Banks can apply transaction charges, transfer fees and other approved costs. The exchange rate can also change between the day the importer submits an application and the day the payment is completed. This means that even an importer who uses an official banking channel may spend more naira than a simple online currency conversion suggests.

The problem becomes more complicated when the importer cannot obtain enough foreign currency through a bank. A foreign supplier may refuse to release goods until payment arrives, while shipping dates and production schedules may already have been agreed. The importer may then source all or part of the required dollars from the parallel market. That purchase will reflect the rate available at the time, including the seller’s margin. If the parallel-market rate is higher than the official rate, the difference becomes part of the importer’s real cost.

This is where many Nigerians misunderstand the role of the Nigeria Customs Service. Customs does not sell dollars to importers, and it does not refund the extra amount an importer paid to obtain foreign currency elsewhere. Its role is to determine the Customs value of the goods and calculate the applicable duties, taxes and levies. The Nigeria Customs Service has stated that it does not independently create or adjust the exchange rates used on its trade platform. Those rates are transmitted by the Central Bank and applied through the B’Odogwu system. cms.customs.gov.ng

The exchange rate applied by Customs is therefore different from the rate used to purchase the dollars. An importer can buy dollars at a parallel-market rate and still have the shipment assessed with the official Customs reference rate. The reverse can also happen, because an importer may secure dollars through a bank while the Customs rate changes before the declaration is processed. These are separate events occurring at different stages of the import process. Treating them as one transaction hides a large part of the importer’s actual expense.

Customs valuation does not begin with an arbitrary price chosen by an officer. The normal starting point is the transaction value, which is the amount paid or payable for the imported goods, subject to permitted additions and adjustments. Freight, insurance and certain other expenses can form part of the value used for Customs purposes. The resulting foreign currency amount is converted into naira using the applicable official reference rate. Nigeria Customs describes the invoice price as the starting point for valuation, although the declared amount can be examined when there is reasonable doubt about its accuracy. A Practical Guide for Traders

Consider a Nigerian business importing equipment worth $10,000. Assume the business obtains the dollars at ₦1,400 to one dollar, which means the purchase price alone costs ₦14 million. If the applicable Customs reference rate is ₦1,330, Customs does not replace the importer’s ₦14 million foreign exchange expense with ₦13.3 million. It merely uses its reference rate when converting the Customs value for duty assessment. The importer has already paid the higher amount to acquire the dollars, so that cost remains inside the eventual selling price.

Freight and insurance must also be considered in a proper calculation. If freight and insurance add another $1,600, the relevant Customs value may be based on $11,600 rather than only the $10,000 invoice price. At an illustrative Customs rate of ₦1,330, that produces a naira value of ₦15,428,000 before the applicable duty and other charges are added. The exact duty will depend on the product’s Harmonised System classification and the prevailing tariff rules. Nigeria Customs provides a tariff lookup system because different goods can attract different rates and measures. demo-cet.customs.gov.ng

This example shows why looking at the dollar price alone can be misleading. The importer first carries the cost of obtaining foreign currency. The shipment then attracts freight, insurance, import duty and any applicable levies or taxes. Terminal handling, documentation, examination, haulage and clearing costs may follow. By the time the product leaves the port, its naira cost can be much higher than the result obtained by multiplying the supplier’s invoice by the official exchange rate.

Port delays can increase this cost further. If documentation is incomplete or a dispute arises over classification or valuation, the container may remain at the port longer than expected. Storage charges, demurrage and additional professional fees can continue to accumulate during the delay. These expenses are paid in naira, but they still increase the effective exchange rate attached to each imported unit. A delayed shipment can therefore become expensive even when neither the official rate nor the parallel-market rate changes.

The effective exchange rate is the figure that gives a more honest picture of what the importer paid. It can be estimated by dividing the total naira spent on acquiring and landing the goods by the original foreign currency value of the goods. Suppose goods worth $10,000 eventually cost ₦18 million after foreign exchange expenses, freight, insurance and import-related charges. The effective cost in that simplified example is ₦1,800 for every dollar of invoice value. It would be wrong to describe the consignment as having been imported at ₦1,330 simply because that was the Customs reference rate.

This effective rate is not an official exchange rate published by the Central Bank. It is a business calculation that helps an importer understand the true cost of replacing stock. It can vary from one company to another because businesses do not have the same access to foreign currency, shipping arrangements or clearing efficiency. A large manufacturer may negotiate better freight rates and obtain foreign currency through an authorised dealer. A small trader importing a few cartons may pay more for dollars, shipping and handling.

The timing of the transaction is equally important. Importation can take several weeks or months from the initial order to final clearance. The supplier may receive an advance payment before production and a balance before shipment. The importer could therefore buy foreign currency at several different rates for the same consignment. A single shipment might contain dollars bought through a bank, dollars already held in a domiciliary account and dollars obtained from another permitted source.

This creates what accountants call a blended rate. If half of the required dollars came from a bank and the other half was obtained at a more expensive rate, the importer’s foreign exchange cost falls somewhere between both rates. Transfer fees and bank charges can push the final figure higher. The Customs assessment will still follow the official rate transmitted for the relevant process. A trader who says, “I bought my dollars at this rate,” may therefore be referring to an average rather than one uniform purchase.

Many importers also price goods according to replacement cost rather than historical cost. A trader may have imported an item when the dollar was cheaper but still set the current selling price based on the amount required to replace that item today. This practice can appear unfair to customers who know when the earlier shipment arrived. However, selling only on the old cost may leave the trader unable to restock after the naira weakens. A business that cannot replace its stock will eventually shrink or close, even if it appeared profitable on paper.

Replacement-cost pricing does not mean that every price increase is justified. Some sellers raise prices immediately after bad exchange-rate news but refuse to make reasonable adjustments when conditions improve. Others continue using a very high assumed rate long after they have secured cheaper foreign currency. Buyers are right to question prices that have no clear connection to costs. At the same time, a small improvement in the official rate may not reduce the importer’s freight, duty, demurrage, financing and distribution expenses.

Financing is another hidden part of the real exchange rate. Many Nigerian importers do not pay for goods entirely from their own savings. They may borrow from a bank, finance company, cooperative or private lender. Interest begins to accumulate while the goods are being produced, shipped, cleared and distributed. When the lending rate is high, the cost of money can add a serious amount to each imported item.

Foreign suppliers can also impose costs that are not obvious to the final buyer. Some demand full payment before production because they do not want to carry the credit risk of a Nigerian customer. Others charge more when payment is delayed or when the order is too small to qualify for wholesale pricing. International transfer problems can cause missed production or shipping dates. Each disruption may add another expense that the importer eventually builds into the selling price.

There is also a difference between imported finished goods and imported inputs. A company may import machinery, spare parts, packaging materials or raw materials used for local production. The final product may be labelled as made in Nigeria, but part of its cost remains tied to the dollar, euro, yuan or pound. A weaker naira can therefore affect goods that consumers do not consider imported. Local production reduces some foreign exposure, but it does not remove it when key inputs still come from abroad.

This is why prices of medicine, electronics, vehicle parts, building materials and industrial supplies can react strongly to exchange-rate movements. These products often depend on imported goods or imported components. Even businesses that source locally may buy from Nigerian suppliers whose own costs are linked to foreign currency. The exchange-rate effect travels through the supply chain before reaching the final customer. By the time a retailer displays the product, several businesses may already have added their costs and margins.

The official and parallel rates also affect planning in different ways. The official rate provides the basis for formal market transactions and Customs conversion, while the parallel rate often reflects the immediate price faced by people seeking foreign currency outside the banking system. An importer may prepare a budget with the official market rate but maintain a safety margin in case the bank cannot provide the required currency on time. That safety margin becomes part of the quoted selling price. Businesses usually prefer to overestimate a possible cost rather than promise customers a price they cannot maintain.

For an ordinary Nigerian buyer, the important question is not simply whether the importer used the Central Bank or black market rate. The better question is what costs were added between the foreign supplier and the Nigerian shop. A serious answer should consider the source of foreign currency, the Customs reference rate, freight, insurance, duties, taxes, port charges, financing and domestic transportation. It should also consider the importer’s profit margin and the cost of replacing the stock. Once these elements are separated, the final price becomes easier to examine.

For small business owners, proper records are necessary. Every foreign currency purchase should show the amount bought, the rate paid, the charges and the source used. Shipping, clearing, duty, haulage and financing expenses should be recorded separately. Combining everything under a vague entry called “dollar cost” makes it difficult to know whether the business is profitable. Clear records also help the owner price goods without depending on rumours from WhatsApp groups or roadside currency dealers.

Importers should also avoid using one general exchange-rate assumption for every product. Two goods in the same container can have different tariff classifications, profit margins and storage costs. A fragile product may require special handling, while a bulky item can attract higher freight costs even when its invoice value is low. A slow-moving product may tie down capital for months. Accurate pricing should reflect the real cost attached to each product instead of dividing every expense carelessly.

Consumers should understand that a stronger naira does not always produce an immediate fall in retail prices. Existing stock may have been purchased and cleared at a higher cost. Sellers may still be repaying loans taken to finance the consignment. A lower rate must remain stable long enough to affect new orders, shipment costs and replacement calculations. Price reductions are more likely when currency improvement is sustained and competition prevents sellers from keeping the entire benefit.

The final answer is therefore clear. Customs duties are calculated with an official reference rate received from the Central Bank, but that does not prove that the importer obtained foreign currency at the same rate. If the importer sourced dollars at a higher parallel-market rate, that higher cost enters the price of the goods. When shipping, taxes, port expenses, financing and profit are added, Nigerians end up paying a blended landed-cost rate rather than one published exchange rate. In practical terms, the real rate is the total naira sacrificed to bring the imported product into the Nigerian market.