Best Sales Tax Software for BigCommerce (2026)
BigCommerce has no built-in tax engine. The best sales tax software for BigCommerce in 2026: GoodVat, Avalara, TaxJar, Vertex, TaxCloud and Stripe Tax.
BigCommerce doesn’t calculate tax on its own. Out of the box you get manual rate tables; for real rates you plug in a tax service under Settings › Tax. Pick the wrong one and you’re paying enterprise prices for a mid-size store, or getting no help the day you sell abroad.
We compared the six main options on coverage, filing and price.
Disclosure: GoodVat publishes this list. Competitor details come from vendor pricing pages, BigCommerce’s help center and the BigCommerce App Marketplace, checked in October 2026.
The short answer: the best sales tax software for BigCommerce in 2026 is
- GoodVat: best overall. US sales tax, VAT and GST, with registration and filing. Free up to 50 transactions/month, then from $20/month.
- Avalara AvaTax: best for enterprise stores. From $799 per state per year.
- TaxJar: best for US-only stores. $99/month for BigCommerce.
- TaxCloud: cheapest US option for streamlined states. From $79/month for real-time rates.
- Stripe Tax: best if every payment runs through Stripe. 0.5% per transaction.
- Vertex: best for large US and Canadian enterprises. Quote only.
BigCommerce tax services compared
| Software | US sales tax | VAT & GST | Real-time BigCommerce checkout | Registration & filing | Entry price |
|---|---|---|---|---|---|
| GoodVat | Yes | Yes, 140+ countries | Yes, all plans | Yes, via local partners | Free, then $20/mo |
| Avalara AvaTax | Yes | Separate products | Yes | Yes, in Avalara Select | $799/state/yr, 3-state min |
| TaxJar | Yes | No | Professional plan only | AutoFile, $55 per extra return | $99/mo |
| TaxCloud | Yes | No | Premium plan only | From $39 per return; free in SST states | $79/mo |
| Stripe Tax | Yes | Yes | Yes, Stripe payments only | Tax Complete plan from $90/mo | 0.5% of volume |
| Vertex | Yes | US and Canadian merchants | Yes | Managed service, quote | Quote |
1. GoodVat: best overall for BigCommerce
- Best for: BigCommerce stores selling to several states or abroad
- Coverage: 140+ countries and 14,000+ US jurisdictions
- Registration and filing: Yes, through local partner tax firms, quoted per country
- Pricing: Free up to 50 transactions/month; $20 (250), $50 (1,000), $100 (2,500)
- Limitation: Registration and filing are quoted per country on top of the plan; setup is sales-led, on a call with the team
GoodVat for BigCommerce calculates tax at checkout by product and customer location, validates EU and UK VAT numbers for the reverse charge, and counts every order against each US state’s threshold and each country’s VAT rules. When you need to register, local partners register you and file the returns.
The key difference is price at scale. A BigCommerce store registered in five states pays about $4,000 a year for Avalara Select, US only. GoodVat’s Growth plan is $600 a year for 1,000 transactions a month, every jurisdiction included.
2. Avalara AvaTax: best for enterprise stores
- Pricing: Avalara Select $799 per state per year, three-state minimum; standalone AvaTax by quote
- Limitation: Per-state pricing; VAT is a separate product and quote
AvaTax is the most deeply embedded option in BigCommerce’s settings, which is why many stores default to it. It’s built for brands with a tax team. See GoodVat vs Avalara.
3. TaxJar: best for US-only stores
- Pricing: Professional $99/month needed for BigCommerce; 4 filings a year included, then $55 each
- Limitation: US only
4. TaxCloud: cheapest in streamlined states
- Pricing: Premium $79/month for real-time BigCommerce rates; filing from $39 per return, free in the 24 Streamlined Sales Tax states for eligible sellers
- Limitation: US only; registration priced separately
See GoodVat vs TaxCloud.
5. Stripe Tax: best for Stripe-only stores
- Pricing: 0.5% of volume; Tax Complete $90–$1,500/month with filings
- Limitation: Only sees Stripe payments, so PayPal and other gateway orders are missing from your thresholds
6. Vertex: best for large enterprises
- Pricing: Quote only; annual Vertex Cloud licence
- Limitation: The BigCommerce app is listed for US and Canadian merchants only
See GoodVat vs Vertex.
How to choose
| If you are… | Pick |
|---|---|
| Selling to several states or abroad | GoodVat |
| A B2B store needing VAT number validation | GoodVat |
| An enterprise with a tax team | Avalara or Vertex |
| US-only in streamlined states | TaxCloud |
| US-only and want a familiar tool | TaxJar |
| Taking every payment through Stripe | Stripe Tax |
For UK stores, see our BigCommerce UK VAT setup guide.
FAQ
What is the best sales tax software for BigCommerce?
GoodVat is the best sales tax software for most BigCommerce stores in 2026. It calculates US sales tax, VAT and GST at checkout in 140+ countries, tracks every state and country threshold, and handles registration and filing through local partners. It is free up to 50 transactions a month, then from $20/month.
Does BigCommerce calculate sales tax automatically?
No. BigCommerce’s basic tax setting uses manual rate tables. For automatic rates you connect a tax service under Settings, Tax. BigCommerce names Avalara, Vertex, TaxJar and TaxCloud as integrated providers, and Stripe Tax is available as an app.
Is Avalara free on BigCommerce?
No. Avalara AvaTax appears in BigCommerce’s tax settings, but you pay Avalara directly. Avalara Select costs $799 per state per year with a three-state minimum, and larger plans are by quote.
Does BigCommerce file sales tax returns?
No. BigCommerce does not register you or file returns. Filing comes from the tax service you connect: GoodVat through local partners, Avalara through Managed Returns, TaxJar through AutoFile, or TaxCloud per return.
Which BigCommerce tax app covers VAT?
GoodVat and Stripe Tax calculate VAT and GST for BigCommerce stores. TaxJar and TaxCloud are US only, and Vertex’s BigCommerce app is listed for US and Canadian merchants. GoodVat also registers you and files VAT returns.