Freight Deductions in Charterparty Agreements

Freight deductions are an important commercial and legal issue in voyage chartering because freight is the shipowner’s primary remuneration for carrying the cargo. In ordinary contractual disputes, a party may sometimes seek to reduce or withhold payment by relying on a cross-claim. Freight, however, has traditionally been treated differently under English maritime law. Unless the charterparty clearly allows a deduction, the charterer is normally expected to pay freight in the agreed manner and pursue any separate cargo or performance claim independently.

This principle is particularly important in dry bulk and tanker trades, where large freight amounts may be payable and where disputes can arise from short delivery, cargo retention, contamination, delay, additional insurance premiums, brokerage, or commission. A carefully drafted Freight Payment Clause should therefore state not only when freight is payable, but also what deductions, if any, are permitted.

When Can Deductions from Freight Be Made?

Deductions from freight should be made only where there is explicit agreement in the charterparty. Common agreed deductions may include:
  • Address Commission (ADDCOM)
  • Brokerage Commission
  • Cash to Master (CTM)
  • Approved cargo retention deductions under a specific tanker clause
  • In-transit loss deductions where the charterparty expressly provides for them
  • Extra insurance premium deductions where clearly agreed and properly evidenced
Without express wording, a charterer should be cautious about making unilateral deductions from freight. A charterer may have a genuine claim against the shipowner, but that does not automatically create a right to pay less freight. The safer legal and commercial approach is to pay freight as required and then present the separate claim through the contractual claims procedure, arbitration, or court proceedings.

The Aries and the Rule Against Set-Off from Freight

Under English law, the doctrine of equitable set-off may allow a party to reduce payment under a contract where the cross-claim is closely connected with the same transaction. However, freight is a special category. The leading authority is The Aries (1977), where the charterer deducted USD 30,000 from freight because of an alleged short delivery of oil cargo.

The charterer considered the deduction to be compensation for its loss and did not pursue a separate claim in time. The shipowner later brought proceedings to recover the unpaid freight. The charterer argued that ordinary set-off principles should apply and that freight should not be treated as an exception.

The dispute reached the House of Lords, which supported the shipowner and confirmed the long-standing rule that freight should not be reduced by unilateral deduction unless the contract clearly permits it. The decision also emphasized a further practical danger: where a cargo claim is subject to a contractual or statutory time bar, failure to bring the claim properly may leave the charterer with no surviving claim at all. In that situation, the charterer cannot rely on an extinguished claim as a defence to the unpaid freight.

The commercial lesson is simple but significant: freight must be paid as agreed unless the charterparty expressly allows the deduction. A charterer who has a cargo claim, short delivery claim, or performance claim should preserve and pursue that claim separately instead of assuming that it can be deducted from freight.

Address Commission (ADDCOM) as a Freight Deduction

Address Commission (ADDCOM) is one of the most common deductions expressly negotiated in charterparty agreements. It is usually expressed as a percentage of freight, hire, deadfreight, or demurrage, depending on the wording of the fixture. In voyage chartering, it is often deducted from the gross freight before the net amount is remitted to the shipowner.

Address Commission is sometimes described as a contribution to the charterer’s shipping department or an allowance connected with the charterer’s internal administrative work. In practice, many shipowners treat it commercially as a discount from the freight rate. The rate varies by trade and market conditions. In dry cargo trades, Address Commission can be higher than in tanker trades, while tanker fixtures often show lower percentages unless the parties agree otherwise.

For example, if a ship loads 32,000 metric tons of cargo at USD 100 per metric ton and the charterparty provides for 2.5% Address Commission, the calculation would be:

  • Gross freight: 32,000 metric tons x USD 100 = USD 3,200,000
  • Less 2.5% Address Commission = USD 80,000
  • Net freight payable to the shipowner = USD 3,120,000
Because market reports usually focus on the headline freight rate, commission structures may not always be visible in public fixture information. For that reason, a shipowner must evaluate the net result of the fixture rather than relying only on the headline rate. A charterer that does not ask for Address Commission will not necessarily obtain a lower freight rate, while a shipowner agreeing to Address Commission should ensure the percentage is included in the voyage estimate.

Brokerage Commission and Freight

Brokerage Commission is normally payable to the shipbroker or brokers involved in the negotiation and conclusion of the fixture. The brokerage rate should be clearly stated in the recap and charterparty. Brokerage may be deducted from freight or paid separately, depending on the agreed wording and payment mechanism.

Where several brokers are involved, the charterparty should identify the total brokerage percentage and, where necessary, the parties entitled to receive it. Unclear commission wording can create later disputes, especially if the charterparty does not specify whether brokerage is calculated on freight only, freight and deadfreight, freight and demurrage, or other sums payable under the fixture.

Cash to Master (CTM) and Advance Freight Deductions

Cash to Master (CTM) is another deduction that may appear in voyage chartering. CTM usually refers to funds advanced to the master or the ship for port disbursements, crew-related expenses, or other voyage necessities. Where CTM is to be deducted from freight, the charterparty should state the amount, timing, documentation, and method of deduction.

Shipowners should be cautious with CTM wording because unclear arrangements may create accounting disputes at the freight settlement stage. If CTM is paid locally through agents, the payment should be supported by proper receipts and clearly reconciled against the freight account.

Cargo Retention Clauses in Tanker Charterparty Forms

In tanker charterparty agreements, especially in crude oil and dirty petroleum product trades, a Cargo Retention Clause may allow the charterer to deduct a specified amount from freight if cargo remains on board after discharge. This type of clause is often used where the cargo is heavy, viscous, sediment-laden, or difficult to pump completely.

A typical Cargo Retention Clause may allow a deduction equivalent to the FOB value of cargo remaining on board, plus the related freight, but only where the retained cargo is:

  • Liquid, excluding sediment or unpumpable residue
  • Pumpable by the ship’s fixed cargo pumps
  • Reachable by the ship’s fixed pump system
  • Verified by an independent surveyor
Although this wording may appear commercially reasonable, disputes often arise in practice. The parties may disagree about whether the cargo was truly liquid, whether its viscosity made it pumpable, whether it could physically reach the pump suction, or whether the surveyor was genuinely independent. In some ports, the only surveyor available quickly may have a commercial connection with the terminal, receiver, or charterer. That situation can undermine confidence in the deduction.

For this reason, shipowners should examine Cargo Retention Clauses carefully and, where possible, require precise survey procedures, sampling methods, pumpability criteria, and evidence requirements. Charterers should also ensure that any deduction is made strictly in accordance with the clause, because an unsupported deduction may be treated as wrongful non-payment of freight.

In-Transit Loss Clauses and Freight Deductions

Another common tanker clause is the In Transit Loss Clause. This clause may allow a charterer to deduct from freight where the measured cargo loss during the voyage exceeds an agreed tolerance. A typical structure may provide that in-transit loss is allowed up to 0.5% of the Bill of Lading (B/L) quantity, and that the charterer may deduct the value of the excess loss if the loss exceeds that threshold.

In-transit loss clauses require careful drafting because cargo measurement in tanker trades is technically complex. The calculation may depend on whether the parties compare gross volume, net volume, gross standard volume, net standard volume, or total calculated volume. Each method may produce different results because liquid cargo measurement is affected by temperature, free water, sediment, vapour, ship movement, and measuring equipment.

The distinction between gross volume and net volume is especially important. Gross volume may include oil, water, sediment, and other components measured by ullage. Net volume attempts to identify the actual oil quantity after deducting water and sediment. During a voyage, the movement and vibration of the ship may cause oil, water, and sediment to separate. Owners and operators are therefore cautious about clauses that compare a gross figure after loading with a net figure before discharge, because such comparisons may create an artificial shortage.

If an In Transit Loss Clause is included, the charterparty should state the measurement basis, the tolerance, the time and place of measurement, the role of surveyors, and whether the deduction applies only to the excess loss or to the whole loss once the threshold is exceeded.

Extra Insurance Premiums (EIP) and Freight Deductions

Some voyage charterparties include clauses dealing with Insurance Premium Payable by Charterers where the cargo insurer charges additional premium because of the ship’s age, class, flag, ownership, or other risk characteristics. Such wording may allow the charterer to deduct the additional insurance cost from freight, provided the extra premium is properly documented.

A typical clause may state that any additional insurance premium caused by the ship’s age, class, flag, or ownership shall be for the shipowner’s account up to an agreed maximum and may be deducted from freight at the charterer’s option. The purpose is to put a newer and older ship on a more comparable commercial footing from the cargo owner’s perspective.

However, shipowners should approach this clause carefully. The shipowner does not control the cargo’s insured value, the cargo insurer’s rating method, or the charterer’s insurance arrangements. If there is no cap, the deduction may be uncertain at the time of fixing. A practical solution is to agree a monetary ceiling, such as a fixed maximum amount, so that the exposure can be included in the voyage estimate before the freight rate is agreed.

Charterers should provide evidence of payment or formal premium debit notes before making the deduction. Without clear proof, the deduction may be disputed.

Short Delivery Claims and the Risk of Double Recovery

Freight deduction clauses must also be considered alongside the Bill of Lading. If cargo is sold during the voyage, the lawful Bill of Lading holder may have a separate right to claim against the carrier for short delivery under the contract of carriage. At the same time, the charterer may attempt to deduct an amount from freight under the charterparty.

This creates a potential risk of double recovery for the same alleged loss. The shipowner may face a deduction by the charterer and a separate cargo claim by the Bill of Lading holder. To reduce this risk, the charterparty should contain clear wording dealing with deductions, cargo claims, indemnities, documentation, and the relationship between charterparty rights and Bill of Lading claims.

Freight Payment Clause and Fraud Prevention

A detailed Freight Payment Clause is one of the best protections against freight disputes and payment fraud. The clause should identify exactly how freight is to be paid, when it is payable, the currency, the beneficiary, and the bank account. Payment by telegraphic transfer to the shipowner’s designated bank account is usually safer and clearer than vague wording or outdated payment methods.

The clause should also state whether freight is payable before breaking bulk, after loading, after signing bills of lading, before discharge, or within a fixed number of banking days after a specified event. If any deductions are allowed, the clause should list them expressly. If deductions are not allowed, the clause should say so clearly.

Because freight fraud and invoice diversion risks exist in modern shipping, any change of bank details should be verified through trusted channels. Charterers should not rely only on email instructions for amended bank details, and shipowners should provide consistent payment instructions in the recap, charterparty, invoice, and post-fixture correspondence.

Practical Drafting Points for Freight Deduction Clauses

When reviewing a charterparty, both shipowners and charterers should check the following points before agreeing freight deduction wording:
  • Whether deductions from freight are permitted at all
  • Which deductions are allowed and which are excluded
  • Whether Address Commission applies to freight only or also to deadfreight and demurrage
  • Whether brokerage is deducted from freight or paid separately
  • Whether CTM is supported by documents and receipts
  • Whether tanker cargo retention deductions require independent survey evidence
  • Whether in-transit loss calculations are based on gross or net measurements
  • Whether additional insurance premium deductions are capped
  • Whether charterparty deductions could conflict with Bill of Lading cargo claims
  • Whether freight payment bank details are fixed and protected against fraud

Freight Deduction Disputes in Ship Chartering

Freight deduction disputes often arise because one party views the deduction as commercially fair while the other views it as a breach of the payment obligation. The law may not always follow the commercial instinct. A charterer may feel justified in withholding money for a genuine loss, but if the charterparty does not allow the deduction, the charterer may still be in default for underpaying freight.

For shipowners, the key point is to avoid vague deduction wording that gives the charterer broad discretion. For charterers, the key point is to ensure that any expected deduction right is expressly written into the fixture and supported by clear calculation machinery. Both parties benefit when freight, commission, cargo retention, in-transit loss, insurance premium, CTM, and brokerage arrangements are stated clearly at the recap stage and carried into the full charterparty.

Conclusion

Freight deductions should never be treated as automatic in voyage chartering. English law has long protected the principle that freight must be paid as agreed unless the charterparty provides otherwise. The decision in The Aries remains a strong reminder that a cargo claim or short delivery allegation does not normally justify a unilateral deduction from freight.

Address Commission, Brokerage Commission, Cash to Master, Cargo Retention Clauses, In Transit Loss Clauses, and extra insurance premium provisions can all be valid commercial deductions if the charterparty clearly allows them. The essential requirement is clarity. A well-drafted freight clause should define the deduction, the calculation method, the evidence required, the payment mechanism, and the timing. In ship chartering, careful wording is often the difference between a smooth freight settlement and a costly arbitration.