
Key Takeaways
Choosing the right duty drawback provider can mean a difference of millions of dollars, with an estimated $15 billion in tariff refunds going unclaimed annually.
Key evaluation criteria are pricing, speed, and recovery optimization; modern algorithmic platforms often recover 15-20% more than traditional manual methods.
Processing timelines vary dramatically, from 10-15 days with automated services to over a year with traditional brokers.
You can determine your company's potential refund with a free eligibility assessment from a specialized platform like Zollback.
You're paying Section 301 tariffs on Chinese imports, watching duty costs eat directly into your margins — and you've heard there's a government program that refunds up to 99% of those duties when you export. So you start looking for a duty drawback service. Then the confusion sets in.
Fees range from 2% to a 50/50 split of your refund. Processing timelines span weeks to over a year. And one customs broker noted on Reddit that a provider had missed $12.3 million in duty drawback for a single client. The difference between a good drawback partner and the wrong one isn't marginal — it's potentially millions of dollars.
This article compares seven duty drawback services across the criteria that actually matter: pricing model, processing speed, recovery optimization, and compliance expertise.
Duty drawback is a U.S. government program, authorized under 19 U.S.C. § 1313, that refunds up to 99% of customs duties, taxes, and fees paid on imported goods that are subsequently exported or destroyed. The three main types for importers and exporters, as defined by U.S. Customs and Border Protection (CBP), are:
Manufacturing drawback. For imported goods used as inputs in a U.S. manufacturing process, where the finished product is then exported.
Unused merchandise drawback. For imported goods exported in the same condition as received, without being used in the U.S.
Rejected merchandise drawback. For imported goods that don't conform to specifications or were shipped without the consignee's consent.
The Trade Facilitation and Trade Enforcement Act (TFTEA), passed in 2015, modernized these rules — expanding substitution provisions and moving filing to the Automated Commercial Environment (ACE) electronic system.
Not all drawback providers are created equal. The difference between a modern, technology-driven service and a traditional manual operation can mean hundreds of thousands of dollars in recovered duties — or left on the table.
Here's the framework used to evaluate each provider below:
Pricing model. Is it contingency-based, a flat fee, or a retainer? Are there upfront costs? Contingency models align the provider's incentives with maximizing your refund.
Processing speed. How long from document submission to refund received? The industry average is 9–12 months, but modern platforms have compressed this dramatically.
Recovery rate and optimization. Does the provider manually match imports to exports in Excel, or use algorithms to compute every possible combination? This is the difference between a refund and the maximum possible refund.
Compliance and expertise. Is the provider a licensed customs brokerage with certified Automated Broker Interface (ABI) software? Do they have in-house experts to ensure claims survive a CBP audit?
Here's how seven providers stack up across those criteria.
Best for: SMBs and mid-market companies ($10M–$500M in revenue) who have been turned away by traditional providers, plus larger enterprises focused on maximizing recovery speed and amount.
Pricing model: Tiered, performance-based. Zero upfront costs, no setup fees, no retainers — Zollback earns a percentage of the refund only after it's recovered. The rate decreases as your total refund value increases. See the full pricing model breakdown.
Processing speed: 10–15 working days — roughly 95% faster than the industry standard.
Recovery optimization: Zollback's core differentiator is its algorithmic optimization engine, developed from Stanford PhD research in combinatorial optimization. The platform computes every possible import-export matching combination under regulatory constraints to find the permutation that maximizes the refund. In head-to-head comparisons, this recovers 15–20% more than manual matching methods.
Compliance and expertise: Zollback is both a technology platform and a licensed customs brokerage. Every claim is reviewed by in-house licensed customs brokers before submission, then filed directly with CBP via certified ABI software. SOC 2 Type 1 certified. Backed by Y Combinator (S24) with ~$10 million in tariff refunds processed.
What else sets it apart: AI document parsing handles PDFs, CSVs, and ERP exports automatically — no manual data entry. Continuous monitoring identifies new eligible transactions and files automatically, turning drawback from an annual project into a recurring cash flow stream. Includes a free eligibility assessment with no obligation.
Best for: Large, established enterprises — particularly in petroleum, spirits, and industrial chemicals — with complex, high-volume drawback programs.
Pricing model: Primarily contingency-based. Specific rates are not publicly listed. Charter typically works with clients who have very high annual refund potential.
Processing speed: Follows the traditional brokerage model, with multi-month processing timelines standard for large programs.
Recovery optimization: Charter's drawback page reports that since TFTEA implementation in 2018, they have recovered over $4.1 billion for clients and claim to have filed more duty drawback than any other U.S. provider. They have developed proprietary software called Hamilton, which they state incorporates AI to enhance calculations and compliance review.
Compliance and expertise: Deep institutional experience — Charter states they have handled over 90% of claims since 1994. Their team includes licensed brokers, attorneys, and accountants.
What to keep in mind: Charter's model is built for large enterprise programs. SMBs and mid-market companies are unlikely to meet the refund thresholds required for a viable engagement.
Best for: Companies already embedded in the DHL logistics ecosystem who want a single provider handling freight, customs, and drawback.
Pricing model: Not publicly disclosed. Drawback services are typically bundled into broader logistics and customs service agreements.
Processing speed: Follows a traditional, expert-led process — expect multi-month timelines consistent with the manual-intensive model.
Recovery optimization: DHL reports having recovered over $4 billion in duties with a 99% success rate under audit. Their approach emphasizes expert program management and documentation strategy rather than algorithmic optimization.
Compliance and expertise: Strong audit support and compliance infrastructure backed by DHL's global customs network. Active across aerospace, pharmaceutical, consumer goods, and manufacturing sectors.
What to keep in mind: The integration benefit is real — if your trade data already flows through DHL, onboarding is simpler. But drawback is an add-on service within a large logistics operation, not a specialized product. Recovery optimization is expert-driven, not algorithmic.
Best for: Multinational corporations where duty drawback is one component of a broader trade compliance and tax cost-mitigation strategy.
Pricing model: Project-based or retainer fees, consistent with Big Four consulting engagements. Not a pure contingency model — expect upfront costs.
Processing speed: The focus is on comprehensive strategy and compliance, not speed. Engagements are thorough and multi-month by design.
Recovery optimization: KPMG's drawback practice integrates automation tools for claim preparation, but the primary value is connecting drawback to a company's overall tax strategy — not maximizing recovery through combinatorial matching.
Compliance and expertise: A multi-disciplinary team of trade attorneys, customs specialists, and tax professionals. Well-suited for organizations where drawback intersects with transfer pricing, foreign tax credits, and cross-border tax planning.
What to keep in mind: KPMG is appropriate when drawback is part of a larger engagement, not as a standalone drawback filing service. For companies whose primary need is faster refunds and maximum recovery, the retainer model and strategic framing may not be the right fit.
Best for: Companies seeking a focused, experienced drawback specialist operating on the traditional service model.
Pricing model: Not publicly disclosed. Likely contingency-based, consistent with specialist drawback firms.
Processing speed: Standard 9–12 month timeline. Manual data review and claim preparation.
Recovery optimization: Relies on the expertise of licensed brokers performing manual import-export matching. No algorithmic optimization, which means the matching process is limited by what a team can compute by hand — not by every possible combination across millions of records.
Compliance and expertise: Decades of exclusive focus on duty drawback. Strong domain expertise and regulatory knowledge built over a long institutional track record.
What to keep in mind: A credible option for companies that prefer a relationship-driven, specialist approach. The manual matching process means recovery rates may fall short of what algorithmic platforms can achieve for complex, high-volume programs.
Best for: Companies frustrated by opaque fee structures who want a clear, performance-tied arrangement.
Pricing model: As noted on Reddit, Alliance positions itself as "purely contingency based on a % of the amount of duty recovered." No retainers or upfront charges.
Processing speed: Traditional broker-led workflow. Expect timelines in the 6–12 month range.
Recovery optimization: Broker-driven, manual review. Without computational matching, there is inherent risk of suboptimal recovery compared to platforms that evaluate every possible combination across large transaction datasets.
Compliance and expertise: Licensed brokerage with a track record in large corporate programs, including multi-business-unit chemical manufacturers.
What to keep in mind: The contingency-only model is a genuine differentiator for companies that have been burned by excessive fees elsewhere. For maximum recovery speed and optimization, the manual process remains a ceiling.
Best for: Existing Flexport customers looking to consolidate customs and drawback within the same platform they use for freight management.
Pricing model: Integrated into Flexport's broader service offerings. Specific drawback pricing is not publicly disclosed.
Processing speed: Flexport's platform streamlines data collection, but the underlying drawback process still relies on traditional brokerage timelines.
Recovery optimization: Drawback is offered as a service add-on within Flexport's logistics platform. The focus is on visibility and integration — not on algorithmic refund maximization. Recovery depends on the brokerage team's manual matching capabilities.
Compliance and expertise: Competent customs brokerage team supported by Flexport's digital infrastructure. Better suited for customers already deeply integrated into Flexport's freight ecosystem.
What to keep in mind: Convenience is the primary value here. If you're already a Flexport customer, consolidating drawback alongside your freight data makes onboarding easier. But if maximizing your refund is the priority, a specialized drawback platform will likely outperform an add-on service.
Most of the providers on this list — regardless of brand size or track record — share the same underlying process: manual data entry, Excel-based import-export matching, and a 9–12 month engagement cycle. Many still rely on legacy software like DutyCalc, a desktop application common among traditional drawback providers.
The problem isn't effort — it's math. Duty drawback is fundamentally a combinatorial optimization problem. Matching millions of import records to export records across different Harmonized Tariff Schedule (HTS) classifications, accounting methods, and regulatory constraints requires evaluating an enormous number of possible combinations to find the permutation that yields the highest refund. No team working in spreadsheets can compute all of them.
As Forbes reported on AI's role in modernizing drawback, this manual model is the root cause of the country's unclaimed duty crisis — and why the gap between what companies could recover and what they actually recover remains so large.
This also explains the SMB access problem. Traditional providers build their business model around per-claim margins from enterprise clients. The manual cost-to-serve is too high to profitably handle smaller programs. Companies below a certain refund threshold simply don't get served — not because they aren't eligible, but because the economics don't work for a manual shop.
Choosing a duty drawback partner is a financial decision with significant downstream impact. The right provider doesn't just file claims — they use technology to find the maximum refundable amount and get cash back to you faster.
The gap between providers is measurable:
Processing time: 10–15 working days vs. 9–12 months with traditional brokers.
Recovery optimization: Algorithmic matching vs. manual Excel — with 15–20% more recovered in head-to-head comparisons.
Access: Automation makes drawback economical for companies of all sizes, not just Fortune 500 operations.
Cost to start: Performance-based pricing means no upfront risk — you only pay after cash hits your account.
If you're a manufacturer, retailer, or distributor importing goods and exporting products (or destroying unsold inventory), there's a reasonable chance you're leaving a meaningful refund unclaimed. The only way to know is to look.
Zollback's free eligibility assessment runs an automated analysis of your import-export profile and estimates your potential refund — at no cost, no obligation. It's the "peek under the hood" trade professionals reference as the logical first step before committing to any provider.
See if your company qualifies — and find out what you could recover.
Duty drawback is a CBP program that refunds up to 99% of duties, taxes, and fees paid on imported goods that are later exported or destroyed. It allows companies to recover costs on goods that do not ultimately enter the U.S. commerce stream.
Your choice of provider directly impacts your refund amount and speed. Modern platforms using algorithmic optimization can potentially recover 15-20% more than manual methods and process claims in days instead of months. The difference can mean millions of dollars recovered versus left unclaimed.
The timeline varies significantly by provider. Traditional brokers often take 9-12 months to process a claim. However, modern automated platforms like Zollback can prepare and file claims in just 10-15 working days, dramatically accelerating your cash-to-cash cycle.
Pricing models differ, but many modern providers use a performance-based (contingency) fee, taking a percentage of the recovered refund. This aligns their incentives with yours. Be wary of providers who charge large upfront fees, retainers, or have opaque pricing structures.
Any company that imports goods into the U.S. and subsequently exports them (or a finished product containing them) may be eligible. This includes manufacturers, distributors, and retailers. Even destroying unsold, imported inventory can qualify you for a refund.
Technology, particularly AI and algorithmic optimization, has revolutionized drawback. Instead of manual spreadsheet matching, modern platforms compute every possible import-export combination to maximize your refund. This also automates data handling, increases speed, and makes the program accessible to smaller businesses.
Manufacturing drawback applies when imported materials are used to produce a new article that is then exported. Unused merchandise drawback is for goods that are imported and then exported in the same condition, without any significant use or alteration in the United States.
You can determine your potential refund through a free eligibility assessment. At Zollback, we offer a no-obligation analysis of your import and export data to provide a reliable estimate of your recoverable duties. This is the best first step to see if drawback makes sense for your business.