Why CBSA’s Assessed Value Differs From What You Paid

One of the most confusing moments in importing to Canada happens when the numbers don’t line up. People expect the value used for duties and taxes to be simple:

• “I paid X, so the value should be Y”

Then CBSA assesses a different amount.

This leads to questions like:

• “Why are they using a higher value?”
• “They’re charging me for an amount I didn’t pay.”
• “Where did this number come from?”

This post explains why CBSA’s assessed value can differ from what you paid, based entirely on how this issue shows up in real import situations.

The Core Misunderstanding: Payment Price vs Assessed Value

A recurring assumption is that:

• The purchase price automatically becomes the customs value

In practice, CBSA assesses whether the price paid fully and clearly reflects the value of the goods being imported. If CBSA cannot confirm that, they may assess a different value. This difference is what surprises people most.

When CBSA Questions the Declared Value

Based on real import experiences, CBSA often reassesses value when:

• The price appears unusually low
• The invoice doesn’t clearly explain the transaction
• Discounts or conditions aren’t described
• The value doesn’t align with the goods
• Supporting details are missing or unclear

CBSA also reassesses value when the price paid does not include everything that must be part of the customs value. For example:

• Shipping or assists were not reflected clearly
• The sale involved related parties
• A discount was applied without explanation
• The invoice looks more like a receipt than a commercial valuation document

CBSA is trying to confirm the true value for duty purposes, not just the checkout price.

From the importer’s perspective, the invoice shows what was paid. From CBSA’s perspective, the invoice must explain why that price makes sense.

Why “That’s What I Paid” Isn’t Always Enough

This phrase comes up repeatedly:

“But that’s what I paid for it.”

CBSA’s job is not to verify that the payment happened. It’s to assess a value they can rely on for calculating duties and taxes. If the documentation doesn’t clearly support the declared amount, CBSA may:

• Ask for clarification
• Request additional information
• Use a different assessed value

This is where expectations and reality diverge. The fastest way to resolve value questions is usually to provide clear supporting proof, such as payment confirmation, detailed invoices, or documentation explaining discounts or conditions of sale.

How Documentation Affects Assessed Value

Value issues are closely tied to paperwork. Assessed values often change when:

• The invoice lacks detail
• Descriptions are too generic
• Currency or totals are unclear
• Documents conflict with each other

Even when nothing is “wrong,” unclear documentation can lead CBSA to reassess value.

Why the Assessed Value Sometimes Appears Higher

A frequent reaction is:

“They increased the value for no reason.”

From the patterns in the transcripts, value appears higher because:

• CBSA could not rely on the declared amount
• The invoice did not fully explain the transaction
• Additional information changed how the goods were viewed
• Assumptions were made before import

The reassessment is not arbitrary. It reflects what CBSA can confidently support based on the information provided.

For example, if you paid $10,000 for a vehicle but the invoice does not explain the condition, mileage, or terms of sale, CBSA may assess value based on Kelly Blue Book reference pricing rather than the unsupported declared amount.

Or for ecommerce:

If goods are declared at $50 but appear to be a commercial shipment normally sold for $300, CBSA may ask for proof before accepting the lower value.

When Value Changes After Submission

Another surprise point is timing. Many people expect the value to be fixed once documents are submitted. In reality, value can change when:

• CBSA asks for more information
• Documentation is corrected
• A review or inspection occurs

When information changes, the assessment changes with it. Even after release, CBSA can reassess value later through audit or verification, which is why clear valuation support matters upfront.

Why Value Disputes Cause Delays

Value-related questions slow clearance because:

• Duties and taxes depend on the assessed value
• CBSA cannot finalize charges without confidence in the number
• Unresolved value issues pause the process

This is why value disputes are often tied to long holds and escalations.

Why This Was Discovered So Late

From the transcripts, value issues surface late because:

• Focus was on purchase price, not import value
• The invoice was treated as a receipt, not an explanation
• Assumptions were made before shipping
• The full cost wasn’t reviewed upfront

Most people only learn how the CBSA views value when clearance stops.

CBSA Customs Valuation Handbook – how value for duty is established

CBSA follows well-defined valuation rules under Canada’s customs legislation. When transaction value cannot be verified, CBSA may apply alternate methods to determine a supportable value.

This page explains:

• The transaction value method (the primary valuation method based on the price paid or payable).
• The sequence of alternate valuation methods used when transaction value cannot be applied (identical goods, similar goods, deductive value, computed value, etc.).

The Most Important Takeaway

CBSA’s assessed value is not simply what you paid. It is the value CBSA can:

• Understand
• Verify
• Rely on for calculating duties and taxes

When that value isn’t clearly supported, CBSA may assess a different amount. Clarity in documentation keeps the assessed value aligned with expectations.

Want to Estimate Duties and Taxes Before Surprises Happen?

Use the BorderBuddy duty & tax calculator to get a quote. It helps you understand how value affects duties and taxes, what CBSA may assess and where surprises often come from. BorderBuddy’s calculator also uses AI to help classify goods under the correct HS (Harmonized System) code, a key factor in determining the duty rate applied to an import.

What to Read Next

People who question assessed value usually ask next:

• Why are Canadian customers charged at delivery? (coming soon)
• What happens if duties or taxes aren’t paid in Canada (coming soon)
• How to avoid surprise customs fees in Canada? (coming soon)
• How duties and taxes are calculated on imports into Canada

Still Need Help With Your Import?

If you still didn’t find what you were looking for, BorderBuddy is here to help.

• Call us at 1 (877) 409-8163
• Or email us anytime at service@borderbuddy.com

Our team can help you get clear answers and avoid border delays.