HTSAlert vs Flexport tariff tools
HTSAlert is a dedicated tariff-change monitor: it watches the exact HTS codes you import and alerts you when a duty rate changes. Flexport offers tariff tooling as part of a full logistics platform. If your question is "did a rate on my codes change?", this comparison is for you.
| Dimension | HTSAlert | Flexport |
|---|---|---|
| Product focus | Per-HTS-code tariff change monitoring and alerts — one job, done daily | Tariff tooling within a broader logistics and freight platform |
| Tariff rate lookups | Free duty calculator with stacked Section 301/232/IEEPA math and Chapter 99 subheadings | Public tariff simulator described on their site as a free tool |
| Change detection | Daily diff of official USITC and Federal Register data on your watched codes, with both legal effective and detected dates | Typically oriented to landed-cost planning within shipment workflows |
| Audit trail | Insert-only timestamped record of every detected change; CSV export from Pro | Platform-level documentation designed for managed freight customers |
| Pricing | Free (5 codes), Starter $19, Pro $49, Broker $129 per month | Free simulator per their public site; platform pricing on paid terms |
Flexport capability descriptions are based on their public site — see flexport.com for their current offering.
The job to be done is different
A customs broker managing entries for thirty clients doesn't need another freight platform — they need to know, before the next entry is filed, that Section 301 coverage on 8507.60.0000 moved and which 9903 subheading now applies. That's the entire HTSAlert workflow: watch codes, diff official data daily, alert with the effective date, the governing action, and the Chapter 99 subheading, and keep an immutable audit record of every change.
Flexport's tariff tooling lives inside a platform designed for companies that want freight forwarding, customs brokerage, and financing under one roof. If you already move freight with them, their built-in tools are the natural place to model landed cost. Monitoring specific codes for rate changes with a documented detection trail is a narrower job — and narrower tools can afford to do it more thoroughly and much more cheaply.
When Flexport is the better choice
If you need a full logistics platform — ocean and air freight, customs brokerage, financing, and visibility in one vendor — Flexport is built for exactly that, and a standalone tariff monitor won't replace it. HTSAlert makes sense when tariff change awareness is the missing piece, not the whole stack.
Frequently asked questions
Is HTSAlert a replacement for Flexport?
No. Flexport is designed as a full logistics and freight-forwarding platform; HTSAlert does one job — monitoring US tariff rates on the specific HTS codes you import and alerting you when they change. Many importers use a logistics platform for freight and a dedicated monitor for rate changes.
What does HTSAlert cost compared to Flexport's tariff tools?
HTSAlert has a free plan (5 HTS codes), then Starter at $19/month, Pro at $49/month, and Broker at $129/month, with two months free on annual billing. Flexport's public site describes its tariff simulator as a free tool, with its broader platform offered on paid terms — check flexport.com for their current details.
Why does the two-date model matter for tariff monitoring?
US tariff changes are sometimes published after they are already legally in effect. HTSAlert records both the legal effective date and the date the change was first detectable in published data, so you can document exactly when a rate became knowable — useful for compliance reviews and broker conversations.
HTSAlert provides informational tariff monitoring only — not customs or legal advice. We do not file entries.