BigCommerce Sales Tax Automation
Automate Sales Tax For Your BigCommerce Store
Last updated: July 2026
BigCommerce handles your storefront. Galvix handles your sales tax compliance. Our platform combines intelligent automation with real human experts to simplify tax management for fast-growing ecommerce brands. Modular, transparent pricing — pay only for the services you use, with no platform fees.
Trusted by 50+ businesses for their sales tax
Our Customers
Accountants and business owners who have switched to Galvix
Why Choose Galvix For Your BigCommerce Store
Galvix helps online store operators calculate checkout tax, track nexus, file returns, and manage notices from one workflow.
Simple Set-up
Connect to BigCommerce with zero developer help. We automatically pull your transaction data, categorize your products, apply the right sales tax rules at checkout, and build your filing schedule based on your state registrations.
Time-Saving Automation
Galvix continuously monitors your nexus across all 50 states and calculates real-time sales tax on every BigCommerce checkout order, using customer location, product taxability, and jurisdiction-level rules.
Real Sales Tax Experts
Get a dedicated compliance manager who intimately understands your business model, handles all state notices, and prepares your filings. Your team keeps track of everything through a single dashboard.
Purpose-Built to Solve Sales Tax Challenges for BigCommerce
Accurate Real-Time Tax Calculation
Tax rules change constantly, but you should not have to manage them. For BigCommerce storefront orders, Galvix calculates and applies the right local tax rate and product taxability rules at checkout, with rooftop-level accuracy across all 13,000+ US jurisdictions.
Multi-Channel Nexus Tracking and Alerts
We monitor your sales footprint across all 50 states by combining your BigCommerce data with data from other channels (such as Amazon). Our platform gently alerts you when you hit 75%, 85%, and 95% of a state's threshold, so you are never caught off guard.
Exemption Certificate Management
Selling to other businesses? Galvix offers exemption certificate management as an additional paid solution for businesses with advanced exemption compliance needs. Our portal collects, validates, and securely stores exemption certificates, and automatically chases down customers for renewals before they expire.
Our Sales Tax Experts Do It For You
Expert-Prepared Returns
We don't just blindly submit automated data. Your dedicated specialist independently reconciles your BigCommerce sales data against your billing records to catch hidden errors before filing.
Done-For-You State Registrations
Crossed a new state threshold? Galvix handles the complex permit application, manages state communications, and sets up your portal through modular pricing based on services used and work volume.
Audit and Notice Support
If a state sends a notice or triggers an audit, we handle it. We compile the documentation and draft the responses, leaving your team completely insulated from the stress.
See What Our Customers Say
"With Galvix, there is transparency at each level with utmost accuracy along with excellent customer service and one-to-one communication, which was a major setback at Avalara."
Kshama Patel
Sr. Accountant, Poster Compliance
"My entire experience with Galvix has just been so simple and straightforward the whole time. I just rarely have questions or concerns because things don't tend to go wrong."
Meredith Harold
Founder/CEO, The Informed SLP
"With Galvix managing it all for me, I don't even remember how many states I have to do sales tax in anymore. It's just taken care of."
Ismael Osuna
Financial Controller, Lindye Galloway Inc.
BigCommerce Sales Tax Integration Live in 2–7 Days
Connect Your BigCommerce Store
One click pulls your BigCommerce transaction data instantly.
Day 1
Build Your Tax Profile
We map your products, activate checkout tax calculation, configure exemptions, and identify your current state-by-state nexus.
2–7 days
Transition to Your Dedicated Expert
Your manager handles pending registrations and prepares your first set of returns.
Onboarding
Review and Approve Your Returns
Each month, simply click to approve your prepared returns. We file them and upload the receipts.
Monthly
The Smartest Way to Handle BigCommerce Sales Tax
| Feature | Galvix | BigCommerce Native |
|---|---|---|
| Real-Time Tax Calculation | Checkout tax calculation with rooftop-level accuracy | Requires a third-party app |
| Nexus Tracking | All channels, all 50 states | Not available |
| Proactive Alerts | At 75%, 85%, and 95% of threshold | Not available |
| Product Taxability Support | Applies product taxability rules at checkout | Limited native configuration |
| Return Filing | Included; expert-prepared | Not available |
| Human Review Before Filing | Yes, every return | N/A |
| State Registrations | Done-for-you support through modular pricing | Not included |
| Exemption Management | Available as an additional paid solution | Basic code field only |
| Audit Documentation | Reports plus expert guidance | Transaction reports only |
| Expert Human Support | Dedicated sales tax specialist | Generic store support |
| Pricing | Modular pricing based on the services used and work volume | Included in BigCommerce subscription |
Ready to Automate BigCommerce Sales Tax?
Galvix provides checkout tax calculation, multi-channel tracking, and expert-filed returns all in one place.
Join 50+ BigCommerce merchants who trust Galvix for complete sales tax compliance.
Common Questions About BigCommerce Sales Tax
General BigCommerce Tax
Comparison
Galvix Integration
Let Galvix handle sales tax for you
Nexus monitoring, tax filing, and end-to-end compliance — handled by experts.