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How HTS Hero Compares to Other Tariff Calculators
Side-by-side comparisons of HTS Hero and the other US tariff calculators: what each one covers, what it costs, and who it suits. Every claim is checked against the tool's own website and dated.
No demo, no sales call, no contract. Last checked .
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The Best US Tariff Calculators in 2026
Every tool we compared, ranked, with quick picks for each kind of importer.
| Feature | Our toolHTS HeroFree, then from $14.99/mo | Flexport Tariff SimulatorFree; Pro for Flexport clients | Avalara AvaTax Cross-BorderContact Avalara | Zonos Landed CostNot published |
|---|---|---|---|---|
| Free to tryYou can calculate a real duty without paying. | YesFree to start, no sign-up | Yes5 free searches, then a free sign-up | PartlyDeveloper sandbox and trial; no public calculator | PartlyFree US quoter, about 5 quotes |
| Start without a demo or sales callSign up and use every plan yourself, with no demo, contract or freight account. | YesEvery plan is self-serve, with no demo or contract | PartlyFree tool is self-serve; Pro needs a Flexport client account | NoCross-border is enabled by Avalara, after a demo | PartlySelf-serve on Shopify; otherwise through sales |
| Pricing publishedEvery paid plan's price is on the website. | Yes | NoPro has no published price | No | Partly$2 per order + 10% of duties and taxes |
| Every Chapter 99 tariff, line by lineThe base rate plus Section 232, Section 301 and every other additional duty, each as its own line with exemptions applied. | YesEach tariff on its own line, with its Chapter 99 heading and legal note | PartlyBy tariff type; its FAQ says not all Chapter 99 programs are supported | NoOne import duty line in the API | NoOne duty total |
| Trade agreements and preference programsClaim USMCA, CAFTA-DR, KORUS and other programs and see the preferential rate. | YesUSMCA, CAFTA-DR, KORUS and every program on the line | YesApplied automatically when eligible | Yes | Partly |
| Exemption questions that change the dutyAnswer the facts that unlock exemptions (metal content, generics, donations and more) and see the new total. | YesAnswer each question and see the new total | YesMetal content, melt country and U.S. content | No | Not found |
| Audit past entries by dateCalculate the duty that applied on an entry date, to check what you paid. | YesEntry audits, with verified rates back to April 2026 | YesBack to January 1, 2025, per its FAQ | PartlyA date field in the API | No |
| Duty over timeSee how a product's duty changed across HTS revisions. | YesDuty Over Time, revision by revision | Not found | No | No |
| Alerts when a tariff change hits your productsLoad your catalog once and hear when a change affects it, with the duty impact on each product. | Paid planTariff Tracker alerts, with the cost to each product | Customers onlyPro alerts, for Flexport clients | NoTariff news by blog and webinar | Customers only |
| Compare countries of originThe same product's duty from several countries, side by side. | Yes | Customers onlyPro, for Flexport clients | No | No |
| Bulk upload (CSV)Add many products at once. | Paid planTariff Tracker | Customers onlyPro, up to 500 rows | Customers onlyBy SFTP or API | Customers onlyBulk classification |
| HTS classification helpGuidance to find and document the right HTS code for a product. | Paid planHTS Hero Classify, with CROSS rulings | YesHTS search and AI classification | Customers onlyAI plus human review, up to 24 hours | YesZonos Classify |
| API, MCP and ERP/TMS integrationGet tariff results inside your ERP, TMS, internal tools or AI assistant. | On requestAPI and MCP; plugs into ERP, TMS and internal tools | NoNo public tariff API | Customers onlyREST API and MCP servers, for customers | Paid plan |
| Public changelog of rate updatesA dated record of every change to the tool's tariff data. | Yes | Yes | No | PartlyProduct changelog only |
Checked against each tool's public website on October 6, 2026. “Not found” means we couldn't find it on the vendor's public pages, so we don't count it either way.
Head to head
HTS Hero vs other tariff calculators
- HTS Hero vs Flexport Tariff SimulatorFree calculator from a freight forwarder
- HTS Hero vs Avalara AvaTax Cross-BorderCross-border duty and tax API for ecommerce
- HTS Hero vs Zonos Landed CostLanded cost at checkout for cross-border ecommerce
- HTS Hero vs SimplyDutyGlobal duty calculator and API
- HTS Hero vs GingerControlFree calculator with paid compliance tools
- HTS Hero vs Gateway Tariff CalculatorFree calculator from a freight forwarder
- HTS Hero vs TariffsAPITariff API with a free calculator
- HTS Hero vs AMZ Prep Tariff CalculatorFree calculator from a 3PL
Alternatives
Looking for an alternative?
- Best Flexport Tariff Simulator AlternativesFree calculator from a freight forwarder
- Best Avalara Landed Cost Alternatives for US ImportersCross-border duty and tax API for ecommerce
- Best Zonos Alternatives for US Import DutyLanded cost at checkout for cross-border ecommerce
- Best Descartes CustomsInfo AlternativesEnterprise classification and tariff research
- Best SimplyDuty Alternatives for US ImportsGlobal duty calculator and API
- Best GingerControl AlternativesFree calculator with paid compliance tools
- Best Easyship Duty Calculator AlternativesFree estimator from a shipping platform
API and MCP
Plug HTS Hero into your ERP, TMS and internal systems
Get every tariff, exemption and fee for an import wherever you price, plan or file: in your ERP, your TMS, your own tools or an AI assistant. We'll set it up with you.
- Tariff results by API, for your ERP, TMS or internal tools
- An MCP server, so AI assistants can calculate duty
- The same line-by-line results as the calculator
Start free
Try HTS Hero now. No demo required.
Enter an HTS code and a country of origin and see the full US duty: the base rate, every Chapter 99 tariff and the fees. When you need unlimited calculations, it's $14.99 a month.
- Free to start, no sign-up: every tariff on your import, line by line
- Published prices, monthly plans, no contract
- No demo, no sales call, no freight account
- Start in about a minute