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Avalara Alternatives (2026): Top 10 Compared

Updated October 2026By StatWharf Editorial10 vendorsMethodology

Avalara sells AvaTax calculation, returns filing and exemption certificate management under one account, priced per registered state. The ten alternatives below split into three groups. Vertex, Sovos and ONESOURCE quote enterprise engines. Anrok, Numeral, Zamp and Quaderno price per market, filing, quote or transaction tier. TaxJar, TaxCloud and Shopify Tax target ecommerce sellers with lower entry prices.

Order is not a ranking. How entries are ordered.

On this page
  1. Comparison table
  2. Vendor details
  3. Vertex O Series
  4. Anrok
  5. Numeral
  6. TaxJar
  7. Zamp
  8. TaxCloud
  9. Shopify Tax
  10. Quaderno
  11. Sovos Tax Determination
  12. Thomson Reuters ONESOURCE Determination
  13. Frequently asked questions
  14. Suggest a vendor

Compare at a glance

Select a vendor for details and sources. Scroll the table horizontally on smaller screens.

Avalara Alternatives: vendor fit and recorded pricing
VendorConsider forPricing notesStandout
Vertex O SeriesenterpriseLarge enterprises running SAP or Oracle at global scaleQuote-based Checked Sep 2026Deep certified ERP integrations and on-premise deployment option
Anrokmid-marketSaaS and AI companies with global digital-goods obligationsFrom $50/market/mo for eCommerce Checked Sep 2026Nexus monitoring and filing priced per market rather than per seat
Numeralmid-marketGrowing sellers wanting per-filing pricing and managed serviceFree tier; paid from $75/filing Checked Sep 2026Transparent per-return and per-registration fees with no subscription
TaxJarsmbEcommerce sellers on Amazon, Shopify or WooCommerceFrom $39/mo Checked Sep 2026AutoFile credits bundled into a low flat monthly subscription
Zampmid-marketTeams wanting compliance fully outsourced to a managed serviceQuote-based Checked Sep 2026Free one-time nexus analysis with a tax professional
TaxCloudsmbBudget-conscious sellers registered in SST member statesFrom $39/mo Checked Sep 2026Free filing in 24 Streamlined Sales Tax member states
Shopify TaxspecialistShopify merchants selling only through the Shopify adminFree to $100k sales (annual for stores created before 13 May 2026, lifetime from that date); then 0.35% per order, capped at $0.99 Checked Oct 2026No fee on the first $100,000 of sales (annual or lifetime by store creation date)
QuadernosmbDigital creators and small SaaS sellers billing internationallyFrom $29/mo Checked Sep 2026Tax-compliant invoicing bundled with rate calculation
Sovos Tax DeterminationenterpriseHigh-volume multi-country businesses that need one engine for sales tax, VAT and GSTCustom pricing based on company needs, stated on the product page; no list price published Checked Sep 2026Hybrid cloud deployment keeps calculation close to the transaction source
Thomson Reuters ONESOURCE DeterminationenterpriseGlobal enterprises that need one tax engine across more than 200 countries and territoriesNo list price published; sold through a demo and quote process alongside the wider ONESOURCE suite Checked Sep 2026Determination Anywhere synchronises automatically with the cloud tax engine

These comparisons draw on public product information, not hands-on testing of every tool. Source records identify available references and checks; missing evidence is marked. Buyer fit is an editorial assessment, not a measured performance score. How to use this research.

About Avalara

Avalara sells AvaTax, a tax determination engine covering more than 12,000 United States sales and use tax jurisdictions and VAT and GST treatment in over 190 countries. Returns filing, state registration and exemption certificate management are sold by the same vendor. Avalara publishes more than 1,400 signed partner integrations, including SAP, Oracle, NetSuite, Shopify and Stripe. Core Compliance is listed at $79 per state per month or $799 per state per year, and the Streamlined Sales Tax variant at $69 per state per month.

Why buyers compare Avalara alternatives

Cost scales with state count, so a seller registered in many low-revenue states pays for each one. Published plans stop at $50 million in annual revenue, and larger or multi-entity buyers move to a quoted Custom plan. Implementation and support quality vary by account tier, and Exemption Certificate Management carries no list price.

Vendor details and trade-offs

Vertex O Series

enterprisevertexinc.com ↗
Consider forLarge enterprises running SAP or Oracle at global scale
Pricing notesQuote-based (checked Sep 2026)
Feature to evaluateDeep certified ERP integrations and on-premise deployment option

Vertex O Series is a quote-based engine for large enterprises running SAP or Oracle, while Avalara publishes per-state list prices. Vertex offers cloud, edge and self-hosted deployment and certified connectors for SAP, Oracle, Workday and Microsoft Dynamics. Modules such as tax intelligence carry additional licence fees.

Potential strengths

  • Content covering 195 countries and more than 20,000 jurisdictions
  • Certified connectors for SAP, Oracle, Workday and Microsoft Dynamics

Trade-offs

  • No published pricing and a long procurement cycle
  • Modules such as tax intelligence carry additional licence fees
Sources and status
Visit Vertex O Series

Anrok

mid-marketanrok.com ↗
Consider forSaaS and AI companies with global digital-goods obligations
Pricing notesFrom $50/market/mo for eCommerce (checked Sep 2026)
Feature to evaluateNexus monitoring and filing priced per market rather than per seat

Anrok is built around software and digital-product taxability for SaaS and AI companies, whereas Avalara targets multi-channel sellers on ERP and ecommerce stacks. Anrok prices per market, from $50 per market per month, rather than per registered state. Its integrations are billing-first, including Stripe, Zuora and Chargebee.

Potential strengths

  • Built around software and digital-product taxability rules
  • Monitoring, registration, filing and remittance in one workflow

Trade-offs

  • Per-market pricing rises sharply with many registrations
  • Advanced exemption and e-invoicing features gated to custom tier
Sources and status
Visit Anrok

Numeral

mid-marketnumeral.com ↗
Consider forGrowing sellers wanting per-filing pricing and managed service
Pricing notesFree tier; paid from $75/filing (checked Sep 2026)
Feature to evaluateTransparent per-return and per-registration fees with no subscription

Numeral charges per return filed, from $75 per filing, with a free nexus monitoring tier, while Avalara charges per registered state. Numeral adds concierge support from tax staff. Its tax engine and API access are reserved for the enterprise tier, and costs climb for sellers filing monthly in many states.

Potential strengths

  • Per-filing pricing avoids per-transaction and per-state subscriptions
  • Free nexus monitoring tier before any obligation exists

Trade-offs

  • Cost climbs for businesses filing monthly in many states
  • Tax engine and API access reserved for the enterprise tier
Sources and status
Visit Numeral

TaxJar

smbtaxjar.com ↗
Consider forEcommerce sellers on Amazon, Shopify or WooCommerce
Pricing notesFrom $39/mo (checked Sep 2026)
Feature to evaluateAutoFile credits bundled into a low flat monthly subscription

TaxJar is a flat monthly subscription from $39 with AutoFile credits, aimed at ecommerce sellers on Amazon, Shopify or WooCommerce, while Avalara charges per registered state. TaxJar Starter and Professional plans are both capped at 200 orders a month. Stripe owns TaxJar and uses it as its United States filing partner.

Potential strengths

  • Flat monthly pricing with filing credits included
  • Well-documented connectors for major marketplaces and carts

Trade-offs

  • Starter and Professional plans both capped at 200 orders monthly
  • Additional AutoFile credits billed separately at $50 to $55 each
Sources and status
Visit TaxJar

Zamp

mid-marketzamp.com ↗
Consider forTeams wanting compliance fully outsourced to a managed service
Pricing notesQuote-based (checked Sep 2026)
Feature to evaluateFree one-time nexus analysis with a tax professional

Zamp sells compliance as a managed service that executes registrations, filings and notice handling for the customer, while Avalara sells calculation and returns products per state. Zamp offers a free one-time nexus analysis with a tax professional. Neither paid Zamp plan carries a published price.

Potential strengths

  • Managed service model covers registrations, filings and notices
  • Free nexus analysis and API sandbox before any commitment

Trade-offs

  • No published prices for either paid plan
  • Canadian coverage requires the higher tier
Sources and status
Visit Zamp

TaxCloud

smbtaxcloud.com ↗
Consider forBudget-conscious sellers registered in SST member states
Pricing notesFrom $39/mo (checked Sep 2026)
Feature to evaluateFree filing in 24 Streamlined Sales Tax member states

TaxCloud targets budget-conscious sellers and, as a Certified Service Provider, files free in 24 Streamlined Sales Tax member states. Its filing services start at $39 per month, against $69 per state per month for the Avalara SST variant. TaxCloud plan prices appear only through a volume calculator.

Potential strengths

  • Certified Service Provider status makes SST state filings free
  • Unlimited team members at no additional charge

Trade-offs

  • Plan prices shown only through an interactive volume calculator
  • Real-time calculation and API access limited to the Premium plan
Sources and status
Visit TaxCloud

Shopify Tax

specialistshopify.com ↗
Consider forShopify merchants selling only through the Shopify admin
Pricing notesFree to $100k sales (annual for stores created before 13 May 2026, lifetime from that date); then 0.35% per order, capped at $0.99 (checked Oct 2026)
Feature to evaluateNo fee on the first $100,000 of sales (annual or lifetime by store creation date)

Shopify Tax is built into the Shopify admin, so it needs no separate integration, while Avalara connects through more than 1,400 partner integrations. It is free on the first $100,000 in sales, then 0.35% per order capped at $0.99. It covers only United States obligations for Shopify sales.

Potential strengths

  • Included in the Shopify admin with no separate integration
  • Free on the first $100,000 in sales, an annual allowance for stores created before 13 May 2026 and a lifetime allowance for newer stores

Trade-offs

  • Covers United States obligations for Shopify sales only
  • No support for orders placed outside the Shopify platform
Sources and status
Visit Shopify Tax

Quaderno

smbquaderno.io ↗
Consider forDigital creators and small SaaS sellers billing internationally
Pricing notesFrom $29/mo (checked Sep 2026)
Feature to evaluateTax-compliant invoicing bundled with rate calculation

Quaderno targets digital creators and small SaaS sellers billing internationally, and it bundles automatic multilingual, multi-currency tax invoices with rate calculation. It prices by transaction tier from $29 per month rather than per registered state. The Hobby plan is limited to 25 transactions, one user and one jurisdiction, and refunds and purchases count as transactions.

Potential strengths

  • Low entry price with transparent transaction-based tiers
  • Automatic multilingual, multi-currency tax invoices included

Trade-offs

  • Hobby plan limited to 25 transactions, one user and one jurisdiction
  • Transaction counts include refunds and purchases, not only sales
Sources and status
Visit Quaderno

Sovos Tax Determination

enterprisesovos.com ↗
Consider forHigh-volume businesses filing in the United States and internationally that want sales and use tax, VAT, GST and excise determination from one engine inside their ERP, as Sovos documents for Tax Determination
Pricing notesThe Sovos Tax Determination page states custom pricing based on a company's needs and publishes no list price or starting figure. The sales and use tax product pages list Determination alongside separately sold products for filing, exemption certificates and use tax analysis, which indicates a modular contract (checked Sep 2026)
Feature to evaluateAn Active/Active hybrid cloud model runs a containerised on-premise calculation component for low latency and always-on availability

Sovos Tax Determination is a custom-priced engine covering sales and use tax, VAT, GST and excise across close to 200 jurisdictions. Its hybrid model runs a containerised on-premise calculation component close to the transaction source. Unlike Avalara, Sovos publishes no price and sells filing and certificates as separate products.

Potential strengths

  • One engine covers sales and use tax, VAT, GST and excise across close to 200 jurisdictions
  • Determination, filing, certificates and use tax analysis are documented as separate products under one vendor

Trade-offs

  • No published price or starting figure anywhere on the product pages
  • The modular product line means several subscriptions are needed for the full cycle
Sources and status
Visit Sovos Tax Determination

Thomson Reuters ONESOURCE Determination

enterprisetax.thomsonreuters.com ↗
Consider forGlobal enterprises with data residency or security constraints that need real-time sales, use, VAT, GST and excise calculation across more than 200 countries and territories, as Thomson Reuters documents for ONESOURCE Determination
Pricing notesThomson Reuters publishes no list price for ONESOURCE Determination. The product and feature pages route buyers to a demo request, and the European solutions page presents Determination as one component of a wider ONESOURCE indirect tax suite that also covers e-invoicing, reconciliation and compliance (checked Sep 2026)
Feature to evaluateDetermination Anywhere synchronises system and content updates automatically with the cloud engine, which Thomson Reuters presents as removing update downtime

Thomson Reuters ONESOURCE Determination targets global enterprises with data residency or security constraints and documents coverage of more than 200 countries and territories. It publishes no price at any tier, whereas Avalara lists per-state plans for sellers under $50 million in revenue. Separate industry content covers oil and gas, retail, manufacturing and technology.

Potential strengths

  • Documented coverage of more than 200 countries and territories in one engine
  • Industry content for oil and gas, retail, manufacturing and technology is published separately

Trade-offs

  • No published price at any tier
  • The suite spans several products, so scope and cost are settled in a sales process
Sources and status
Visit Thomson Reuters ONESOURCE Determination

Frequently asked questions

What are the main alternatives to Avalara?

This page compares ten alternatives drawn from StatWharf sales tax comparisons: Vertex O Series, Anrok, Numeral, TaxJar, Zamp, TaxCloud, Shopify Tax, Quaderno, Sovos Tax Determination and Thomson Reuters ONESOURCE Determination. They differ by seller type, deployment and pricing model, from quoted enterprise engines to flat monthly ecommerce subscriptions and per-filing services.

Which Avalara alternatives publish prices?

Anrok, Numeral, TaxJar, TaxCloud, Shopify Tax and Quaderno publish a price figure, each shown with a checked date in the table. Vertex O Series, Zamp, Sovos Tax Determination and Thomson Reuters ONESOURCE Determination quote only. Avalara lists Core Compliance at $79 per state per month and quotes a Custom plan for multi-entity buyers.

Which Avalara alternatives suit small online sellers?

Avalara's per-state pricing escalates across many registrations, so small sellers often compare other pricing models. TaxJar starts at $39 per month with filing credits included. Numeral charges $75 per filing and offers a free monitoring tier. TaxCloud files free in 24 Streamlined Sales Tax member states. Shopify Tax is free on the first $100,000 in Shopify sales.

Which Avalara alternatives suit enterprises running SAP or Oracle?

Vertex O Series records certified connectors for SAP, Oracle, Workday and Microsoft Dynamics, with cloud, edge and self-hosted deployment. Sovos Tax Determination offers a hybrid model with an on-premise calculation component. Thomson Reuters ONESOURCE Determination covers more than 200 countries and territories. All three are quote-based. Avalara also lists SAP and Oracle among its integrations.

Does Avalara handle exemption certificates?

Yes. Avalara Exemption Certificate Management, formerly CertCapture, collects, validates and stores certificates and reconciles them against AvaTax transactions. It is sold in Essentials, Pro and Premium tiers with no list price, and Essentials caps storage at 1,000 certificates. Anrok, Numeral and TaxCloud on this page include certificate handling in their plans.

How was this list of Avalara alternatives compiled?

The alternatives are drawn from StatWharf category comparisons of sales tax software, sales tax automation software and exemption certificate management software, which cite public vendor documentation with checked dates. StatWharf did not test any product hands-on. The order follows the source pages and is not a ranking of the vendors against each other.

Suggest a vendor or correction

Send factual corrections to editorial@statwharf.com. Corrections are free. For inclusion or placement enquiries, contact partnerships.

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First published October 2026. Page update dates reflect editorial changes, not a fresh check of every vendor.