TaxJar
TaxJar is a cloud-based sales tax compliance platform that automates calculations, nexus tracking, and filing for over 20,000 US e-commerce and mid-market businesses across 11,000 jurisdictions. It is a wholly-owned Stripe subsidiary serving SMB and mid-market sellers via API and 20+ prebuilt integrations.
- Company typePrivate
- Founded2013
- HeadquartersBoston, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What TaxJar does
TaxJar (legal entity TPS Unlimited, Inc.) is a cloud-based sales tax compliance automation platform serving US e-commerce and multi-channel sellers. Founded in 2013 and headquartered in Boston with a 100% remote workforce, the company is a wholly-owned subsidiary of Stripe following a 2021 acquisition. TaxJar serves over 20,000 high-growth businesses, automating the full sales tax lifecycle across 11,000 US jurisdictions—from real-time rate calculation at checkout and economic nexus tracking through automated filing and remittance. The platform is delivered through 20+ prebuilt e-commerce integrations (Shopify, Amazon, WooCommerce, Magento, BigCommerce, Squarespace, eBay), a SmartCalcs API with sub-25ms response time and 99.999% historical uptime, and an AutoFile service backed by a 100% on-time filing rate guarantee in 2025.
The core technology stack combines a proprietary database of continuously updated sales tax rates maintained by an in-house research team, an API-first calculation engine with rooftop-accurate address validation, AI-driven product taxability categorization, and automated electronic filing workflows with state tax authorities. TaxJar offers two primary subscription tiers: Starter at $39/month (up to 200 orders, 3 integrations, 2 AutoFile credits annually) and Professional at $99/month (up to 200 orders, 10 integrations, dedicated onboarding, Customer Success Manager, 4 AutoFile credits annually), with usage-based Flex Fees for seasonal volume spikes and annual billing discounts above 10%.
TaxJar operates a hybrid go-to-market combining product-led self-serve onboarding (30-day free trial, no credit card required) for SMB and mid-market segments with sales-assisted engagement for Professional and enterprise tiers. Distribution has been significantly augmented by its April 2026 designation as the native US filing partner for Stripe Tax, enabling cross-sell into Stripe's global merchant base. The company is led by CEO Mark Faggiano, employs 51–100 people, and maintains certifications including GDPR and CCPA compliance. TaxJar's primary segments are Small Business and Mid-Market customers across Retail/E-commerce, SaaS, Services, Food & Beverage, and Medical/Healthcare verticals.
TaxJar firmographics
Firmographics- Name
- TaxJar
- Legal name
- TPS Unlimited, Inc.
- Website
- https://taxjar.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- TaxJar is a cloud-based sales tax compliance platform that automates calculations, nexus tracking, and filing for over 20,000 US e-commerce and mid-market businesses across 11,000 jurisdictions. It is a wholly-owned Stripe subsidiary serving SMB and mid-market sellers via API and 20+ prebuilt integrations.
- Ownership category
- akta.pro rank
TaxJar industry classification
Industry- Product category
- Sales Tax Compliance Software
- NAICS
- Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412), Tax Preparation Services (541213)
- SIC
- Services-Computer Processing & Data Preparation (7374), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Excise, VAT/Sales Tax & Indirect Tax Administration (BPAIADAH)
- akta.pro secondary industries
- Tax Return Filing, Processing & Assessment (BPAIADAC), Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO), Tax Advisory & Compliance (BPAHABAB)
Keywords
Where TaxJar is headquartered
LocationHeadquarters
- HQ city
- Boston
- HQ country
- United States
- HQ region
- North America
Markets served
TaxJar business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations
Revenue model
- Subscription - Starter Plan: Monthly subscription at $39/mo for Starter tier covering up to 200 orders/month, 3 data import integrations, email support, and 2 AutoFile credits annually. Additional AutoFile credits at $50 each.
- Subscription - Professional Plan: Monthly subscription at $99/mo for Professional tier covering up to 200 orders/month, 10 total integrations, email and phone support with guaranteed response time, dedicated onboarding support, Customer Success Manager, and 4 AutoFile credits annually. Additional AutoFile credits at $55 each. Annual pricing available with 10%+ discount.
- Flex Fees: Optional flex fees allow customers to temporarily upgrade to higher tier during high-sales months without permanent commitment, paying only for extra volume when needed.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Starter: $39/mo for new businesses and marketplace sellers with basic reporting and filing needs |
| Subscription | Monthly | Professional: $99/mo for small-to-mid-sized businesses with real-time calculations and multi-state reporting |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels7 records
TaxJar product offering
Product offeringCore offering
TaxJar is a cloud-based sales tax compliance platform that automates the entire sales tax lifecycle for US e-commerce and multi-channel sellers. It provides real-time rooftop-accurate sales tax calculations at checkout via the SmartCalcs API, economic nexus tracking across states, multi-channel reporting, and automated electronic filing and remittance (AutoFile) to state tax authorities across 11,000 US jurisdictions.
Product overview
TaxJar is a cloud-based sales tax compliance platform offering a unified suite of products for US sales tax management. The core platform includes real-time tax calculation via the SmartCalcs API, automated filing through AutoFile, economic nexus tracking via Nexus Insights, and comprehensive reporting. The platform operates across 11,000+ US jurisdictions and is offered through Starter ($39/month) and Professional ($99/month) pricing tiers. TaxJar also integrates with Stripe Tax as its US filing partner, enabling global Stripe customers to leverage TaxJar's AutoFile capabilities for US sales tax compliance.
Differentiator
Problem solved
Functional benefit
Products and services
- TaxJar Sales Tax Compliance Platform
Quantifiable outcome
- Saves over $100,000 annually compared to hiring internal sales tax compliance team (Global Value Commerce case study)
- +4 more outcomes
Companies that use TaxJar
Customer profileNamed customers7 records
Segments7 records
Ideal customer profiles3 records
TaxJar technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability2 records
Feature5 records
TaxJar partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and major.
- Stripe TaxcoreTaxJar serves as the US filing partner for Stripe Tax, integrating with Stripe's global tax compliance solution. Stripe Tax handles calculations and collection for US sales tax, VAT, and GST globally, while TaxJar provides automated filing and remittance for US state jurisdictions.
- AmazoncoreCertified integration partnership with Amazon for marketplace sellers. TaxJar connects with Amazon seller accounts to import transaction data for accurate sales tax calculation, nexus tracking, and automated filing.
- ShopifycoreCertified integration with Shopify e-commerce platform enabling real-time sales tax calculation at checkout, transaction data sync, and automated reporting and filing for Shopify merchants.
- WooCommercecoreCertified integration with WooCommerce WordPress e-commerce platform providing sales tax calculation, nexus tracking, and automated compliance for WooCommerce store owners.
- Magento/Adobe CommercemajorCertified integration with Magento (Adobe Commerce) enabling enterprise-level sales tax automation including real-time calculations, multi-store support, and automated filing.
- BigCommercemajorIntegration with BigCommerce platform for sales tax compliance including real-time rate calculation and automated reporting across BigCommerce stores.
- SquarespacemajorIntegration partnership with Squarespace enabling sales tax calculation and compliance for Squarespace commerce users.
- eBaymajorCertified integration with eBay marketplace for sales tax compliance, enabling nexus tracking and automated filing for eBay sellers.
Scale indicators7 records
Recent moves6 records
Expansion highlights5 records
TaxJar competitors and assessment
Company assessmentDirect peers
- Avalara: Avalara is the leading direct competitor in automated sales tax compliance, offering real-time calculation, nexus tracking, and filing across US states and international jurisdictions. It is the most directly comparable product to TaxJar across SMB, mid-market, and enterprise segments.
- Vertex: Vertex provides enterprise-grade sales and use tax determination, compliance, and filing software. It competes head-to-head with TaxJar in the mid-market and enterprise tier, particularly with strong ERP integrations.
- Sovos: Sovos offers a global tax compliance platform covering sales tax, VAT, and other transaction taxes. Its automated filing and determination capabilities overlap directly with TaxJar's AutoFile and SmartCalcs products.
Broad incumbents
- Stripe Tax: Stripe Tax is TaxJar's parent company's global tax calculation and collection product, serving as a complementary filing partner today but a potential competitor. It addresses the same end customer (Stripe merchants) with overlapping calculation functionality.
- Quadient: Quadient offers tax automation and compliance software as part of its broader customer communications and compliance portfolio. It competes in sales tax determination and filing for mid-market and enterprise customers.
- Thomson Reuters ONESOURCE: ONESOURCE is a broad tax compliance and determination suite from Thomson Reuters, including sales and use tax automation. It targets larger enterprises and represents an incumbent alternative to TaxJar's professional tier.
- Wolters Kluwer CCH Sales Tax Office: Wolters Kluwer's CCH Sales Tax Office is an established sales tax determination and compliance product, primarily serving tax professionals and mid-market/enterprise customers with multi-jurisdiction filings.
- Bloomberg Tax: Bloomberg Tax offers tax research and compliance tools including sales/use tax determination, serving enterprise tax departments. It is an adjacent incumbent offering competing coverage of compliance workflows.
Emerging players
- TaxCloud: TaxCloud is a sales tax calculation and filing service focused primarily on SMB and marketplace sellers. It overlaps with TaxJar's Starter tier and addresses similar use cases for smaller merchants.
- Sales Tax DataLINK: Sales Tax DataLINK provides sales tax calculation and compliance automation, primarily for retail and e-commerce merchants. It competes with TaxJar in the SMB to mid-market segment with a similar API-led offering.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
TaxJar social profiles
Digital presenceTaxJar compliance and trust
Trust signalCompliance2 records
TaxJar financial estimates
Financial estimateRevenue estimate
Valuation estimate
TaxJar leadership team
Management profileNumber of profiles
Profiles7 records
TaxJar funding detail
Funding detailFunding overview
Funding rounds4 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
TaxJar M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about TaxJar
What does TaxJar do?
TaxJar is a cloud-based sales tax compliance platform that automates the entire sales tax lifecycle for US e-commerce and multi-channel sellers. It provides real-time rooftop-accurate sales tax calculations at checkout via the SmartCalcs API, economic nexus tracking across states, multi-channel reporting, and automated electronic filing and remittance (AutoFile) to state tax authorities across 11,000 US jurisdictions.
Is TaxJar a public or private company?
TaxJar is a private company. It is classified as corporate owned and is currently operating.
When was TaxJar founded?
TaxJar was founded in 2013. It employs 51 to 100 people.
Where is TaxJar based?
TaxJar is headquartered in Boston, United States, in the North America region.
How does TaxJar make money?
Three revenue lines are on record. Subscription - Starter Plan is the primary driver. The others are subscription - Professional Plan and flex Fees.
Who are TaxJar's main competitors?
Direct peers on record are Avalara, Vertex and Sovos. Broad incumbents are Stripe Tax, Quadient, Thomson Reuters ONESOURCE, Wolters Kluwer CCH Sales Tax Office and Bloomberg Tax. Emerging players are TaxCloud and Sales Tax DataLINK.
Does TaxJar have an API?
Yes. TaxJar SmartCalcs API enables real-time sales tax rate calculations at checkout, address validation, and product taxability classification. The API provides rooftop-accurate rates based on state, county, city, and district levels. Professional plan includes 10,000 API calls/minute and developer sandbox access. Sub-25ms response time with 99.99% uptime SLA. Developer documentation is at developers.taxjar.com/api/reference.
What industry is TaxJar in?
TaxJar's product category is Sales Tax Compliance Software. Its primary akta.pro industry code is BPAIADAH, Excise, VAT/Sales Tax & Indirect Tax Administration, with a secondary code of BPAIADAC, Tax Return Filing, Processing & Assessment. Its NAICS code is 5412 and its SIC code is 7374.