TaxJar

Sales Tax Compliance Softwaretaxjar.com

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

Sales tax compliance
Sales tax automation
Tax calculation API
Nexus tracking
Automated tax filing

Where TaxJar is headquartered

Location

Headquarters

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 offering

Core 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 profile

Named customers7 records

Segments7 records

Ideal customer profiles3 records

TaxJar technology and API

Technology

Technology 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 signal

Partnerships

Eight partnerships are on record, tiered core and major.

Stripe TaxcoreGTM or Marketing Partner · 29 April 2026TaxJar 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.
AmazoncoreTechnology or IntegrationCertified 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.
ShopifycoreTechnology or IntegrationCertified 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.
WooCommercecoreTechnology or IntegrationCertified integration with WooCommerce WordPress e-commerce platform providing sales tax calculation, nexus tracking, and automated compliance for WooCommerce store owners.
Magento/Adobe CommercemajorTechnology or IntegrationCertified integration with Magento (Adobe Commerce) enabling enterprise-level sales tax automation including real-time calculations, multi-store support, and automated filing.
BigCommercemajorTechnology or IntegrationIntegration with BigCommerce platform for sales tax compliance including real-time rate calculation and automated reporting across BigCommerce stores.
SquarespacemajorTechnology or IntegrationIntegration partnership with Squarespace enabling sales tax calculation and compliance for Squarespace commerce users.
eBaymajorTechnology or IntegrationCertified 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 assessment

Direct 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 compliance and trust

Trust signal

Compliance2 records

TaxJar financial estimates

Financial estimate

Revenue estimate

Valuation estimate

TaxJar leadership team

Management profile

Number of profiles

Profiles7 records

TaxJar funding detail

Funding detail

Funding 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 investment

M&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?

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.