Internal Hedging: Invoicing, Netting, Matching, Leading and Lagging

A company that sells abroad in dollars, or buys abroad in euros, takes on a risk that has nothing to do with its business: the exchange rate may move between the day the deal is made and the day the money changes hands. There are two kinds of defence. External hedging buys protection from a bank or an exchange: a forward contract, a money market hedge, futures or options.

Internal hedging uses the company’s own commercial arrangements to reduce or remove the exposure before going to the market. It is cheaper, because it pays no fees or spreads to a bank, and it should be tried first; but it cannot remove every exposure.

This topic explains the purpose of hedging, the main internal techniques (choosing the invoicing currency, price adjustment and risk-sharing clauses, netting, matching, and leading and lagging), with calculations, when each is suitable and what it costs, and how internal methods fit with the external ones in the next topics, with worked examples. The next topic covers forward contracts and money market hedges.

The syllabus asks candidates to explain methods of hedging foreign exchange risk. Read covered interest arbitrage and forward rates first.

The purpose of hedging

The purpose of hedging an exposure is to remove, or reduce, the possibility that a future foreign currency transaction will have to be made at a worse rate than expected. Exchange rates can move either way, so a hedged company gives up the chance of a gain as well as the risk of a loss.

A trading company exists to make its goods and sell them at a margin it finds acceptable; hedging protects that margin by taking the volatility out. A Nigerian exporter that sells $100,000 of sugar at a 10% margin expects ₦1.5 million of profit on a ₦15 million sale at ₦150/$1; if the dollar falls to ₦140, the exchange loss of ₦1 million wipes out two thirds of the profit.

The aim of hedging is not to make money from currency movements but to protect the margin.

Choosing the invoicing currency and sharing the risk

• Invoice in the home currency. A Nigerian exporter who invoices in naira has no exposure; the customer carries it. It may be impossible if the customer will not accept naira, or the customer may demand a lower price in return, since the risk has been moved to it. Equally an importer who can pay in naira avoids the exposure, but the supplier may add a margin for the risk.
• Invoice in the currency in which the costs are incurred (or in a stable currency), which matches revenue with cost and reduces the net exposure.
• Price adjustment clauses. The contract states that the price will be adjusted if the exchange rate moves beyond a band (for example by more than 2% from the rate at the date of the contract), so that both sides share the movement.
• Share the risk: invoice half in each currency, so that each side bears part of any move.

Netting

Netting uses receipts in a currency to pay payments in the same currency, so that only the difference is exposed. A company that expects to receive $400,000 in two months and to pay $600,000 at the same time has a net exposure of $200,000 to pay, which can then be hedged by a forward contract: it has hedged $400,000 of the $600,000 without any cost.

A movement in the exchange rate affects the receipts and payments equally, so the gain on one offsets the loss on the other.

Multilateral netting applies the idea across a group: the subsidiaries’ debts to each other are netted so that each makes or receives one payment only. Suppose in a group the subsidiary in Nigeria (A) owes the subsidiary in Ghana (B) $300,000, B owes the subsidiary in Kenya (C) $250,000 and C owes A $200,000. Gross flows are 300 + 250 + 200 = $750,000. A’s net position is to pay 300 − 200 = $100,000; B is to receive 300 − 250 = $50,000; C is to receive 250 − 200 = $50,000.

So A pays $50,000 to B and $50,000 to C (or the group centre settles the net), and only $100,000 is converted instead of $750,000. With a bank spread of ₦10 per dollar, the conversion cost falls from ₦7.5 million to ₦1.0 million, a saving of ₦6.5 million, as well as the reduction in the exposure and the bank charges.

Netting requires the cash flows to fall at about the same time, to be in the same currency. The group to have a system that collects the information (and the approval of the central bank where rules on netting or intercompany settlement apply).

Matching

Matching means setting foreign currency receipts against foreign currency payments, or foreign currency assets against liabilities of the same currency and period, so that a movement in the rate affects both. A company with $120,000 of dollar receipts and $90,000 of dollar payments in the same month has a net exposure of only $30,000.

A company with dollar income can open a dollar account (a domiciliary account) at an authorised dealer, receive the income into it and pay dollar suppliers from it, converting nothing; or it can borrow in dollars to finance a dollar asset, so that the dollar loan and the dollar asset move together.

Matching works best for a continuing business with regular receipts and payments in the same currency; it removes the need for conversion and the associated spread.

Leading and lagging

Leading means paying early; lagging means paying as late as possible. A company that expects a currency to strengthen against its own pays early, before the cost rises; one that expects it to weaken pays late, so that the cost falls.

These are bets on exchange rate movements, not hedges, and they have a cost: paying early means finding the money earlier (an overdraft or lost interest), and paying late may damage supplier relations or breach credit terms. Example: a Nigerian importer owes $250,000 in three months. The spot rate is ₦1,345/$1 and the company expects ₦1,420 in three months.

Paying now costs 250,000 × 1,345 = ₦336.25m, which at an overdraft rate of 24% a year for three months (6%) costs ₦336.25m × 1.06 = ₦356.4m by the due date; waiting costs 250,000 × 1,420 = ₦355.0m. Waiting is cheaper by ₦1.4m even though the dollar rises, because the financing cost (6%) is more than the expected rise in the dollar (5.6%). The break-even expected rate is 1,345 × 1.06 = ₦1,425.70: leading pays only if the dollar is expected to go above that. With high naira interest rates, leading is expensive.

Internal and external methods

The normal order is to reduce the exposure internally first (net, match, invoice sensibly) and then hedge the remaining net exposure externally, as the cost is incurred only on the smaller amount.

The ideas in more depth

Why internal hedging is the first step

Every external hedge costs something: a spread, a fee or a premium. A company that has matched much of its exposure naturally has less to hedge, and so pays less. Internal methods also do not depend on a bank’s credit lines.

But they cannot remove an exposure that has no natural offset, such as a single large export contract in a currency in which the company has no costs; that needs an external hedge.

Why leading and lagging are speculation

A hedge fixes an outcome; leading and lagging only change the date of the payment. If the forecast is wrong the company loses, so the approach is a view on the exchange rate and not protection against it. Treasury policies usually limit it, and in a high-interest-rate market the financing cost is a serious drawback, as the example shows.

Sources and references

• The rules on domiciliary accounts, netting and intercompany settlement for companies in Nigeria are those of the Central Bank of Nigeria and the authorised dealers. The rates in the examples are illustrative. International Financial Reporting Standard (IFRS) 9 deals with hedge accounting for the hedging relationships that qualify.

These points are stated as at 5 November 2026.

Worked examples

1. Net.
   600,000 − 400,000 = $200,000 to pay, to be hedged.

1. Cost without netting.
   750,000 × 10 = ₦7.5m.
2. Saving.
   7.5 − 1.0 = ₦6.5m.

1. Break-even.
   1,345 × 1.06 = ₦1,425.70.

How to answer in the exam

• Quantify the exposure and the date, currency by currency.
• Apply internal methods first (netting, matching, invoicing) and show the net exposure.
• Cost each choice, including financing costs for leading and lagging.
• Recommend the method for the remaining exposure and state its limits.

Common mistakes in the exam

• Calling leading and lagging a hedge.
• Netting amounts that are in different currencies or fall at different dates.
• Ignoring the financing cost of paying early.
• Saying that invoicing in the home currency removes the risk altogether, when it only moves it.
• Hedging the gross exposure instead of the net.
• Forgetting that hedging gives up favourable moves.

Quick revision

• Internal: home-currency invoicing, price clauses, netting, matching, leading and lagging.
• Netting cuts the exposure and the conversion cost; multilateral across a group.
• Lead in a currency expected to strengthen; lag in one expected to weaken; count the financing cost.
• Reduce internally first, then hedge the net exposure externally.

Practice questions

These are original questions written in the style of the Institute’s exams. Try each one before you open the answer. Section A is a recall check, because the paper itself is written.

Recall check: multiple choice

Section B style: written questions

A further written question

Model answers

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