Built in Alberta, Canada

Find Customs Overpayments in Minutes

Upload a commercial invoice, ACE export, or broker statement. Sentinel Flow reviews it line by line and estimates how much overpaid duty may be recoverable from CBP.

Built for CFOs, finance directors, and trade compliance teams importing into the United States.

Start free audit See a sample report
No credit card required 1 free audit included Files never shared Canadian company · Alberta, Canada

Invoice Intake

Upload a commercial invoice. The agent classifies, audits, and quantifies.

Drop your invoice here, or click to browse

We'll tell you what may be recoverable — no signup needed for the first scan.

  • ✓ PDF Invoice
  • ✓ CSV
  • ✓ XLSX
  • ✓ ACE Export

Need a control set?

From invoice to recovery in 4 steps

No paperwork. No customs expertise required.

  1. 01

    Upload Invoice

    Drop a PDF, CSV, XLSX, or ACE export. No setup, no integration.

  2. 02

    AI Audit

    Sentinel reads every line, reclassifies tariffs, and flags overpayments.

  3. 03

    Recovery Estimate

    See an estimated dollar amount you may be able to recover from CBP.

  4. 04

    Initiate Recovery

    Sign a 15% success-fee agreement and let Sentinel package the claim.

From invoice to recovery in 4 steps

What you upload

Commercial invoices, ACE exports, broker statements, CSV/XLSX line items.

What you get back

A recovery report with flagged lines, dollar estimates, and supporting evidence.

What it costs

From $49/mo to audit. 15% success fee only on duties actually recovered.

When you pay

Subscription monthly. Success fee only after CBP returns money to you.

ROI

Estimate your annual recovery

Enter your annual U.S. import volume to see a conservative recovery range.

Estimated annual duty paid

$240,000

Potential recovery range

$7,200 – $19,200

You keep (after 15% success fee)

$6,120 – $16,320

Estimates only. Actual recovery depends on entry data, HTS classification, and eligibility under current CBP rulings and the May 2026 CIT framework.

Supported file types

Drop anything your broker, ERP, or ACE portal produces.

PDF Commercial Invoices

Scanned or digital invoices from suppliers and brokers.

CSV

Line-item exports from your ERP, WMS, or spreadsheet.

XLSX

Excel workbooks with one row per entry line.

ACE Exports

Entry summary exports from CBP ACE portal.

Broker Statements

Monthly duty statements from your customs broker.

Coming Soon

ZIP Batch Uploads

Bulk upload multiple invoices at once.

How Sentinel Flow Works

Pick what you need today. Upgrade only when the volume justifies it.

Audit My Imports

$49 / month

Upload invoices and identify potential overpayments.

Start Auditing

Monitor My Imports

$199 / month

Ongoing monitoring, unlimited audits, bulk uploads, advanced analysis.

Activate Monitoring

Recover My Money

15% Success Fee

Only applies when a recovery claim is initiated and money is actually recovered. No recovery, no fee.

How the success fee works

Example recovery

You keep 85% of every dollar recovered

No recovery = no fee

Potential recovery found

$100,000

Customer receives

$85,000

Sentinel success fee (15%)

$15,000

What Sentinel Flow is — and what it is not

Clear scope, so you know exactly what you are buying.

What Sentinel Flow is

  • A duty overpayment review of the invoices and entry data you upload.
  • An evidence-backed recovery report with an estimated recoverable amount per flagged line.
  • A claim preparation service — we package the documentation for filing with CBP.
  • A Canadian software company operating on a transparent subscription plus 15% success fee.

What Sentinel Flow is not

  • Not a licensed customs broker and not a law firm.
  • Not legal, tax, or customs advice — findings are reviewed by you before any filing.
  • Not a guarantee of refund; CBP determines every outcome.
  • Not a data broker — your files are never sold or shared with third parties.
Alberta, Canada

Why Importers Use Sentinel Flow

Built for finance and operations teams, not customs lawyers.

  • AI-assisted analysis
  • Evidence-based recovery reports
  • May 2026 CIT framework integration
  • Alberta, Canada company
  • Secure document handling
  • No recovery claim fee unless claim initiated

How Recovery Analysis Works

What Sentinel does between upload and your recovery estimate.

Line-item parsing

Every invoice line is extracted with HTS code, country of origin, entered value, and declared duty rate.

Classification cross-check

Sentinel re-checks each HTS against current CBP rulings, Section 301 exclusions, and the May 2026 CIT framework.

Recovery math

For every flagged line, Sentinel computes the estimated recoverable amount using deterministic duty arithmetic — not guesses.

Evidence assembly

Each recovery opportunity comes with the supporting ruling, statute reference, and confidence score.

Claim packaging

When you choose to initiate, Sentinel packages the claim documentation needed to file with CBP.

You keep 85%

The 15% success fee only applies to duties that are actually recovered. No recovery, no fee.

See exactly what a recovery report looks like

Open a sample recovery report with entry number, potential recovery amount, confidence score, supporting evidence, and recommended action. No login required.

View Sample Report

Where Sentinel Flow is heading

Duty recovery is the starting point. See the longer-term Trade Intelligence roadmap — clearly separated from what ships today.

View the product roadmap

Common questions

Short answers for first-time visitors.