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BigCommerce

Calculate rooftop-accurate sales tax and automate compliance for your BigCommerce store with Zamp’s native integration.

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Integration overview.

Real-time, rooftop
accurate calculations.

Sub-second performance at checkout.

Certified BigCommerce integration.

Available on BigCommerce App Marketplace

Why Zamp for BigCommerce.

Fully managed compliance.

Tax calculation, exemptions, registrations, filings, remittance, and audit reporting are handled on a single platform. .

Built for multi-channel and B2B commerce.

Support DTC, wholesale, marketplaces, returns, and exempt customers in a unified workflow.

Simple, predictable pricing.

Usage is based on committed orders, not API calls, with no hidden overages.

Dedicated onboarding and ongoing support.

A consistent team supports setup and filings, with no handoffs and no re-explaining.

4 steps to integrate Zamp to BigCommerce.

1

2

3

4

Install the Zamp Tax app.

Add Zamp from the BigCommerce App Marketplace and connect it to your store.

Configure nexus, taxability, and exemptions.

Define where you collect tax, assign product tax codes, and manage exempt customers with guided onboarding to ensure accuracy.

Enable real-time checkout calculation.

Apply rooftop-accurate tax at checkout with sub-second response and order-level syncing.

Validate, backfill, and go live.

Sync historical orders, confirm liability and reporting, and activate managed compliance.

FAQ.

Still have questions? Call us at 1-866-438-9267
or email us at support@zamp.com.

What happens if Zamp is temporarily unavailable during checkout?

BigCommerce supports fallback tax settings that can be configured as a continuity measure, ensuring orders can still be processed.

How are wholesale and tax-exempt customers handled end-to-end?

Exempt status is applied at checkout and carried through to jurisdiction-level reporting and state filings.

Can Zamp support marketplace and off-platform sales (e.g., Amazon, Walmart)?

Yes. External channel transactions can be unified in Zamp for consolidated reporting and compliance.

How are partial refunds, returns, and order adjustments treated for tax?

Zamp recalculates and reports tax accurately for full and partial refunds, returns, and line-item adjustments.

Does Zamp support Canadian GST, HST, and PST in addition to U.S. sales tax?

Yes. Zamp supports Canadian tax regimes with jurisdiction-level reporting and compliance workflows.

How is tax data prepared for audits and state notices?

Zamp provides line-item, jurisdiction-level reports aligned to filing forms and audit requirements.

How is usage measured for billing purposes?

Usage is based on committed orders, not API calls, providing predictable and reconciliation-friendly billing.

What is required from our team before filings begin?

Your team reviews nexus, product taxability, exemptions, and initial liability reports before production compliance is activated.

Platforms we support.

We connect where you sell. Explore the platforms we integrate with to see how Zamp simplifies your sales tax compliance.

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