DutyDeltaΔ duty, tracked nightly
For US customs brokers

When tariffs change, your clients hear it from you first.

DutyDelta watches the Harmonized Tariff Schedule and the Federal Register every night, matches every change against each client’s HTS codes, and writes the client-ready report — under your letterhead, with every line linked to the official record.

One code, free, no card. Unsubscribe from any email.

Running a brokerage? The Broker plan is $159/month — unlimited clients, branded reports.

Sample — what your client receives
Meridian Customs BrokerageWeek of Aug 17, 2026
Prepared for Pacific Housewares Inc.
3 of your 41 tariff lines changed this week.
9903.88.03Sec. 301 (List 3) additional duty25% → 30%
8501.10.20.00Electric motors, under 18.65 Wnow covered
3926.90.99.89Other articles of plasticsexcl. expired
Every line cites its source: Federal Register document number, HTS revision, or CBP message.

You already do this by hand. That’s the problem.

Reading the Federal Register and CBP messages every morning, keeping a spreadsheet of who imports what, writing the “here’s what changed for you” email client by client — it works, until a busy week. DutyDelta does the reading and the matching, and leaves you the part your clients actually value: your judgment, under your name.

01

Load each client’s codes

Paste HTS codes or upload the spreadsheet you already keep. One catalog per client, 8- or 10-digit, with countries of origin.

02

We diff the official record nightly

Every rate and note in the full HTS export, plus tariff actions in the Federal Register — compared line by line against last night, every night.

03

Send the report as your own

One click per client: your logo, your sign-off, forwardable email or PDF. Or let it send automatically when something changes.

Nothing you have to double-check.

Every line in a DutyDelta report cites the official record it came from — the HTS revision, the Federal Register document number, or the CBP message. If we can’t cite it, we don’t report it. Your name goes on these; ours goes behind them.

29,845HTS lines diffed every night
85trade-relevant Federal Register documents, last 60 days
100%of reported changes carry an official citation