AD/CVD Cash Deposit vs Final Duty: Why Your Bill Can Change

Key Points

• The cash deposit you pay at entry is an estimated antidumping or countervailing duty rate, not a final obligation. Your actual duty is determined later through an administrative review.
• Entries subject to AD/CVD orders are held under suspended liquidation until Commerce publishes final assessment rates, which can take one to three years or longer after the period of review.
• If the final assessed rate is higher than your deposit rate, CBP will bill you for the difference plus interest. There is no cap on how much higher the final rate can be, including the possibility of a rate that is a multiple of the deposit rate.
• Importers buying from new or non-reviewed exporters face special risk: they may be assigned an all-others rate or a much higher rate if their supplier is individually examined and found to have a high margin.
• Requesting an administrative review for your specific supplier, or choosing a reviewed supplier, is the primary lever importers have to limit retrospective exposure.

On this page

1. How the retrospective AD/CVD system works
2. Cash deposit rates: what they are and where they come from
3. Administrative reviews: how final rates are set
4. Suspended liquidation and the timeline to finality
5. Importer exposure when rates rise
6. How to reduce retrospective risk
7. What importers should do
8. Key references

The AD/CVD cash deposit you pay when goods enter the United States is an estimate based on historical data, not a confirmed final duty. Through the retrospective administrative review process, the U.S. Department of Commerce calculates the actual dumping margin or subsidy rate for a specific period of time, and CBP then liquidates your entry at that final rate. The difference, positive or negative, is your real financial exposure. Understanding this gap is essential for any importer whose supply chain touches an active antidumping or countervailing duty order.

The links in this article go to the primary documents: the proclamations, Federal Register notices, and official agency pages themselves. Read the source.

How the retrospective AD/CVD system works

The United States uses a retrospective system for collecting antidumping and countervailing duties. Under this model, importers pay a cash deposit at the time of entry based on an estimated rate, and the government settles the actual amount owed only after a review of the exporter's pricing or subsidy behavior during the covered period. This is in contrast to prospective systems used by some other countries, where the rate paid at entry is treated as final.

The legal authority for antidumping duty orders flows from the Tariff Act of 1930, as amended. The Commerce Department administers the orders and sets rates; CBP collects deposits and ultimately liquidates entries at the assessed rate Commerce instructs.

Cash deposit rates: what they are and where they come from

When Commerce issues an antidumping or countervailing duty order, it establishes cash deposit rates for each named exporter or producer examined during the investigation. Exporters not individually examined receive an all-others rate, which is a weighted average of the individually calculated rates. These rates go into effect immediately upon publication of the order in the Federal Register.

Rates are snapshots, not permanent facts

The investigation rate is based on a defined period of data, often 12 months, collected years before the order takes effect. Prices, costs, and subsidy programs change over time. The deposit rate therefore becomes stale almost immediately, which is why the law provides for annual administrative reviews.

Importers should also be aware that scope coverage matters before the deposit rate even applies. If you are uncertain whether your product falls within an AD/CVD order, a scope ruling request is the formal mechanism to get an answer. See our guide on AD/CVD scope rulings for detail on that process.

Administrative reviews: how final rates are set

Each year, during the anniversary month of an AD/CVD order, interested parties, including U.S. producers, exporters, and importers, may request an administrative review of the order for a specific period. Commerce publishes a list of opportunities in the Federal Register each month.

What Commerce examines

During the review, Commerce sends questionnaires to selected exporters and producers, analyzes their actual sales prices, cost of production, and, for CVD cases, the subsidy programs from which they benefited during the period of review. The process involves multiple rounds of supplemental questions, verifications, and opportunity for comment.

The outcome: an assessed rate

After preliminary and final results are published, Commerce instructs CBP to liquidate entries at the final assessed rate for that exporter for that period. If no party requests a review for a particular exporter, the deposit rate in effect during the period typically becomes the assessment rate, and CBP liquidates entries at that rate automatically.

Suspended liquidation and the timeline to finality

From the moment an AD/CVD order is published, CBP places entries of subject merchandise under suspended liquidation. This means the entries are not closed out at the deposit rate. They remain open on the government's books until Commerce issues a liquidation instruction following an administrative review or other proceeding.

How long can suspension last?

Administrative reviews are complex. A review covering a one-year period can take an additional 12 to 18 months to reach preliminary results, and final results, followed by any court challenges, can push the timeline out further. It is common for entries to remain unliquidated for three, four, or even more years. During all of that time, the final duty amount is unknown.

CBP publishes liquidation instructions through its official messaging system. Importers and brokers can monitor CBP's Cargo Systems Messaging Service (CSMS) for notices relevant to specific orders and periods.

Importer exposure when rates rise

This is where the retrospective system creates real financial risk for importers.

Retroactive bills for past entries

If Commerce's final assessed rate is higher than the deposit rate paid at entry, CBP issues a bill for the difference. That bill covers every entry made during the period of review, not just future shipments. A rate increase of even a few percentage points, applied across a full year of imports, can result in a significant unexpected liability.

Interest accrues on underpayments

CBP charges interest on duty underpayments from the date the entry should have been liquidated. The longer the review takes, the more interest accumulates on any balance owed. Conversely, if the final rate is lower than your deposit, Commerce will instruct CBP to refund the overpayment with interest.

New shipper and non-reviewed supplier risk

Importers buying from a supplier that was never individually examined, or that was examined for the first time in a review, face heightened uncertainty. A supplier examined for the first time may receive a dramatically higher rate than the all-others rate the importer has been depositing. There is no legal mechanism to retroactively limit the assessed rate to the deposit rate.

The "zero rate" trap in reverse

Some importers seek out suppliers with very low or zero deposit rates, assuming they have little AD/CVD exposure. But if that supplier's rate is reviewed and rises sharply, the importer owes the difference on all entries during the review period, regardless of the original deposit rate. The low deposit rate created a false sense of security.

How to reduce retrospective risk

Request an annual administrative review

Importers have the right to request that Commerce conduct an administrative review of their specific supplier during the anniversary month of the order. If no review is requested and the supplier's rate has drifted upward, the importer may never get an accurate current rate. Requesting a review gives Commerce the opportunity to recalculate based on actual, current pricing and cost data. The result may be higher or lower than the deposit rate, but it replaces uncertainty with a known number sooner.

Evaluate your supplier's review history

Before committing to large import volumes from a supplier under an AD/CVD order, review whether that supplier has been individually examined in prior administrative reviews, and what their historical rate trajectory looks like. A supplier whose rate has been rising year over year poses a different risk profile than one with a stable, low rate.

Monitor liquidation instructions

Once Commerce issues final results, CBP publishes liquidation instructions. Importers and brokers should track these instructions so they know when entries are liquidating, at what rate, and whether a bill or refund is imminent. This avoids surprise cash calls.

Maintain adequate financial reserves

Because the final assessed rate is unknown until Commerce completes its review, prudent importers maintain reserves against the possibility of a higher final rate. The size of that reserve is a business judgment informed by the order's history and the supplier's rate trajectory.

What importers should do

• During each anniversary month of any AD/CVD order covering your imports, evaluate whether to request an administrative review of your specific supplier. Missing the window means waiting another year.
• Maintain a log of all entries under suspended liquidation, including the deposit rates paid, so you can reconcile CBP's liquidation instructions against your records when final rates are published.
• Work with a licensed customs broker or trade counsel to monitor Federal Register notices for preliminary and final results affecting your suppliers, and act on liquidation instructions before the statutory deadline to protest passes.

Key references

• 19 U.S.C. 1673 et seq., Tariff Act of 1930, antidumping duty authority
• Federal Register, source for all AD/CVD order publications, preliminary and final review results, and liquidation instructions
• CBP Cargo Systems Messaging Service (CSMS), CBP liquidation instructions and AD/CVD operational guidance
• CBP AD/CVD trade enforcement page, overview of CBP's role in deposit collection and liquidation
• Commerce International Trade Administration, administrative review procedures and order status