Shipping Audit Service for Canada
Canadian carriers overcharge on roughly 5-10% of invoices. ShipSherlock audits every line item automatically and recovers the money you're owed from UPS, FedEx, Canada Post, and Purolator.
Why Canadian Merchants Need Shipping Audits
If you ship products in Canada, you're almost certainly overpaying. Carrier billing systems are complex and error-prone, and the errors almost always favor the carrier. Late deliveries that should be refunded, duplicate charges, incorrect dimensional weight calculations, residential surcharges on commercial addresses — these mistakes add up fast.
Industry research shows that 5-10% of carrier invoices contain billing errors, and approximately 75% of refunds owed to merchants go unclaimed. For a business shipping 500 parcels a month at $15 per package, that's potentially $4,500 to $9,000 per year in overcharges that nobody is catching.
The challenge is that auditing invoices manually is time-consuming and requires deep knowledge of carrier contracts, rate tables, and service guarantees. Most e-commerce sellers don't have time to review every line item on every invoice every week — and carriers are counting on that.
That's where ShipSherlock comes in. We automate the entire shipping audit process for Canadian businesses, from pulling invoices to filing claims to appealing denials. You connect your carrier accounts once, and we handle everything from there.
Shipping Audits Across All Major Canadian Carriers
One platform, four carriers, every type of billing error caught automatically.
UPS Canada
UPS offers a Guaranteed Service Refund on time-definite services across Canada. If a package arrives even 60 seconds late, you're entitled to a full shipping refund. We monitor every UPS shipment and file GSR claims automatically within the 15-day deadline.
Beyond late deliveries, we audit for duplicate charges, voided-but-billed shipments, incorrect DIM weight calculations, and invalid residential surcharges.
UPS refund detailsFedEx Canada
FedEx's Money-Back Guarantee applies to most Express and Ground services in Canada. Late deliveries, billing errors, and incorrect surcharges are all recoverable — but only if you file within the filing window.
ShipSherlock pulls FedEx invoices daily and checks every line for late delivery guarantees, zone miscalculations, weight discrepancies, and fuel surcharge errors.
FedEx audit detailsCanada Post
Canada Post's On-Time Delivery Guarantee covers Priority, Xpresspost, and Expedited Parcel services. If delivery is late, you're entitled to a refund of the shipping cost. The filing window is tight, and most merchants never check.
We track all Canada Post guaranteed-service shipments and flag late deliveries for refund claims. We also catch incorrect classification charges and weight-based billing errors.
Canada Post audit detailsPurolator
Purolator offers service guarantees on Express and Ground services within Canada. Billing errors on Purolator invoices follow similar patterns to other carriers — late deliveries, surcharge mistakes, and weight discrepancies.
ShipSherlock supports Purolator auditing via tracking data and CSV invoice uploads, catching the same six categories of billing errors we audit across all carriers.
Six Types of Shipping Billing Errors We Catch
Every invoice, every line item, checked against six categories of overcharges.
Late Delivery Refunds
When a carrier misses their guaranteed delivery window, you're owed a full shipping refund. We file these claims within hours.
Duplicate Charges
Same tracking number billed twice on one invoice or across consecutive invoices. We cross-reference every shipment to catch doubles.
Voided Shipments Billed
You cancelled the shipment but the charge still appeared. We catch phantom charges and recover the full amount.
Invalid Surcharges
Residential surcharges on commercial addresses, incorrect extended area fees, fuel surcharge calculation errors.
Weight & DIM Errors
Incorrect dimensional weight or actual weight bumping you into a higher rate tier. We verify billed weights against shipment data.
Address Correction Fees
Carriers charge for address corrections that are often unnecessary or invalid. We identify improper fees and file for refunds.
How the ShipSherlock Shipping Audit Works
Two minutes to set up. Fully automated from day one.
Connect Your Carriers
Sign up and connect your UPS, FedEx, Canada Post, or Purolator accounts via secure OAuth. Read-only access to invoices — we never see your login credentials. Takes about 2 minutes.
We Audit Automatically
ShipSherlock pulls invoices every morning and runs a full audit across all six error categories. When we find overcharges, we file claims with your carrier automatically — well within the 15-day deadline.
You Get Credits
Approved credits appear on your carrier bill. You see everything in your ShipSherlock dashboard. We invoice 50% of confirmed credits at month-end. Nothing found? You pay $0.
Why Canadian Sellers Choose ShipSherlock
Most parcel audit services are built for US merchants shipping with US carriers. ShipSherlock is built specifically for Canada. We understand Canadian carrier contracts, Canadian service guarantees, Canadian surcharge structures, and the specific billing patterns that affect Canadian e-commerce.
We support all four major Canadian carriers: UPS, FedEx, Canada Post, and Purolator. Whether you're a Shopify store, a WooCommerce site, or a standalone e-commerce operation, ShipSherlock plugs into your existing workflow with zero disruption.
And our pricing is simple: no monthly fees, no setup costs, no minimum commitment. We take a percentage of the money we actually recover for you. If we don't find overcharges, you pay nothing. Your downside is zero and your upside is thousands of dollars back in your pocket every year.
Works With Your E-Commerce Platform
Shopify and WooCommerce plugins launching soon, plus a standalone dashboard ready to use today.
Shopify App
Our Shopify app is in final review. Sign up on the web today and get automatic access when it launches — at your locked-in founders rate.
Sign up now →WooCommerce Plugin
Our WooCommerce plugin is submitted and in review. Sign up on the web today — your account and founders rate transfer to the plugin automatically when it launches.
Sign up now →
Standalone Dashboard
Not on Shopify or WooCommerce? Sign up directly at shipsherlock.com and connect your carrier accounts. Works for any Canadian business that ships.
Sign up free →Estimate Your Shipping Audit Savings
Enter your monthly shipping volume to see how much you could recover.
How Much Are You Losing to Overcharges?
Adjust the sliders to see your potential savings.
At our founding 40% rate, you keep 60% of all recovered overcharges.
Shipping Audit FAQs
What is a shipping audit?
A shipping audit is the process of reviewing your carrier invoices to find billing errors and overcharges. This includes late delivery refunds owed, duplicate charges, incorrect surcharges, weight discrepancies, and voided shipments that were still billed. Most carriers do not proactively issue refunds for these errors — you have to catch them and file claims yourself.
How much can I save with a shipping audit?
Industry data shows 5-10% of carrier invoices contain billing errors. For a business shipping 500 parcels per month at $15 average cost, that's $375-$750 per month in recoverable overcharges, or $4,500-$9,000 per year. Your actual savings depend on your carriers, volume, and service types.
Is ShipSherlock only for Canadian businesses?
Yes. ShipSherlock is purpose-built for Canadian e-commerce merchants shipping with Canadian carriers. We understand Canadian service guarantees, surcharge structures, and billing patterns. This focus means we catch overcharges that US-focused audit services would miss.
What does ShipSherlock cost?
Nothing upfront. We charge 50% of confirmed refund credits (founding merchants lock in 40% for life). If we don't find any overcharges in a given month, your bill is $0. No monthly fees, no setup costs, no minimum commitment.
How quickly will I see results?
Your first audit runs within 24 hours of connecting your carrier accounts. If errors are found, claims are filed immediately. Carrier credit approval typically takes 1-3 weeks. You'll see everything in real time in your dashboard.
Stop Overpaying on Canadian Shipping
Connect your carrier accounts in 2 minutes. We start auditing immediately. No risk, no upfront cost — pay only when we put money back in your pocket.
Start Your Free Shipping Audit