K1x
K1x is an AI-native SaaS platform that automates extraction, aggregation, and reporting of K-1, K-3, 1099, W-2, and Form 990 tax data for accounting firms, institutional investors, family offices, funds, and tax-exempt organizations, with patented ML technology and deep integrations into leading US tax preparation suites.
- Company typePrivate
- Founded2022
- HeadquartersChicago, United States
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What K1x does
K1x is an AI-native SaaS platform that automates the extraction, aggregation, distribution, and reporting of private-market tax data — primarily Schedule K-1, K-2, K-3, 1099, W-2, and IRS Form 990 series documents. The platform is anchored on a patented machine learning system (three granted patents in the US and Canada) specifically trained on hundreds of thousands of complex, non-structured tax forms to summarize footnotes, allocations, and whitepaper data beyond what generic OCR achieves. The product suite comprises three core modules — K1 Aggregator (receiving/aggregation for LPs and accounting firms), K1 Creator (K-1 package production for funds and accounting firms with output in PDF or the proprietary .k1x digital filetype), and 990 Tracker (IRS-approved e-filing for exempt organizations across federal and 42 state jurisdictions) — plus a developer API, a forthcoming blockchain-based K1xChange data exchange, and an Aggregator Plus upgrade extending automation to 1099 and W-2 forms.
The company serves accounting firms, institutional investors, family offices, funds and fund administrators, wealth managers, and tax-exempt organizations (nonprofits, universities, healthcare systems, private foundations), claiming 40,000+ organizations, 44 of the top 100 US institutional investors, 20 of the top 25 accounting practices, 45 of the top 100 university endowments, and 51 of the top 100 nonprofits. Distribution is sales-led with CPA-led product demos, supported by deep one-click integrations into the dominant US tax preparation suites (Wolters Kluwer CCH Axcess/ProSystem fx, Thomson Reuters ONESOURCE/GoSystem/UltraTax, and GruntWorx), a K1x Collective partner program, and the K1 Test Drive self-service trial.
The business model is primarily recurring SaaS subscription (Essentials, Enhanced, Enterprise tiers, quote-based, annual or multi-year), supplemented by professional services (onboarding, training, integration support) and usage-based API access. K1x is privately held and headquartered in Morristown, New Jersey; Edison Partners has been the earliest institutional backer (2022, 2024, and 2026), and Sumeru Equity Partners became majority shareholder in April 2026 via a $175 million growth round that also funds AI and generative AI product acceleration.
K1x firmographics
Firmographics- Name
- K1x
- Legal name
- K1x Inc.
- Website
- https://k1x.io
- Company type
- Private
- Founded year
- 2022
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- K1x is an AI-native SaaS platform that automates extraction, aggregation, and reporting of K-1, K-3, 1099, W-2, and Form 990 tax data for accounting firms, institutional investors, family offices, funds, and tax-exempt organizations, with patented ML technology and deep integrations into leading US tax preparation suites.
- Ownership category
- akta.pro rank
K1x industry classification
Industry- Product category
- Tax Compliance Software
- NAICS
- Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412), Offices of Certified Public Accountants (541211)
- SIC
- Services-Computer Programming Services (7371), Investment Advice (6282)
- akta.pro primary industry
- Tax Planning & Personal Tax Optimization Tools (FSAGADAJ)
- akta.pro secondary industry
- Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO)
Keywords
Where K1x is headquartered
LocationHeadquarters
- HQ city
- Chicago
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
K1x business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations
Revenue model
- SaaS platform subscription: Recurring subscription revenue from K1 Aggregator, K1 Creator, and 990 Tracker access — the core SaaS product portfolio consumed by accounting firms, institutional investors, family offices, funds, fund admins, and tax-exempt organizations. Tiered into Essentials, Enhanced, and Enterprise service packages.
- Professional services and support: Tiered services revenue from onboarding, data migration, customized training, integration support, and multi-channel technical support delivered by specialists with 12+ years of product experience.
- API and integration access: Developer API access enabling mass K-1 ingestion and structured data export into partner tax platforms (CCH, ONESOURCE, GoSystem, UltraTax, ProSystem fx, GruntWorx).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Essentials service package for small clients (<=50 employees) with ongoing support and success coverage |
| Subscription | Annual | Enhanced service package (most popular) supporting full implementation across service lines and busy season |
| Subscription | Multi-year contract | Enterprise service package for largest or most sophisticated clients with custom experience |
Go-to-market motion4 records
Distribution channels4 records
Marketing channels8 records
K1x product offering
Product offeringCore offering
K1x develops an AI-native SaaS platform that automates tax compliance, data management, and reporting for private market investment entities. The platform is anchored by three core modules — K1 Aggregator (K-1/1099/W-2 data extraction and aggregation), K1 Creator (K-1 package production), and 990 Tracker (IRS-approved e-filing for Form 990 series) — connected via APIs and one-click integrations with leading tax preparation suites. It serves accounting firms, institutional investors, family offices, funds, fund administrators, and tax-exempt organizations in the US market.
Product overview
K1x is a single unified AI-native private markets tax data platform with a modular architecture, headquartered in Morristown, New Jersey. The platform is anchored by three core modules: K1 Aggregator (automated K-1, 1099, and W-2 data extraction and aggregation for accounting firms and institutional investors), K1 Creator (automated K-1 package production with federal, state, K-2/K-3, and the proprietary .k1x Digital K-1 filetype output), and 990 Tracker (IRS-approved e-filing for Form 990, 990-PF, 990-EZ, 990-T, 4720, and 8868 for tax-exempt organizations). These modules share underlying patented machine-learning technology for summarizing non-structured tax documents and are connected through the K1x API and one-click integrations with leading tax preparation suites (CCH Axcess, ProSystem fx, ONESOURCE, GoSystem RS, UltraTax, and GruntWorx). The announced K1xChange blockchain exchange plus the K1x Collective partner ecosystem extend the platform into a broader private-market tax data infrastructure layer serving accounting firms, family offices, funds, fund administrators, wealth managers, banks, real estate, higher education, healthcare, insurance, and law firms.
Differentiator
Problem solved
Functional benefit
Brands
- K1 Aggregator: Patented AI-powered K-1, 1099, and W-2 data extraction, aggregation, and reporting platform (formerly K-1 Analyzer).
- K1 Creator
- 990 Tracker
- K1x Collective
- K1xChange
Products and services
- K1 Aggregator
- K1 Creator
- 990 Tracker
- K1x API
- Aggregator Plus Optional upgrade to K1 Aggregator that adds automated 1099 and W-2 data extraction on top of the base K-1 automation.
- K1xChange Forthcoming blockchain-based secure data exchange product for K-1 and private market tax data, covered by pending US patent application (US20250278517-A1) "Technologies for blockchain-based secure data access, authentication and exchange." Status: announced, patent pending.
- K1x Services
- K1x Collective
Quantifiable outcome
- 90% reduction in manual K-1 data entry (per composite ROI and customer testimonials)
- +7 more outcomes
Companies that use K1x
Customer profileNamed customers9 records
Segments7 records
Ideal customer profiles5 records
K1x technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability8 records
Feature7 records
K1x partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered flagship and core.
- Wolters Kluwer (CCH Axcess, ProSystem fx)flagshipK1 Aggregator integrates directly with Wolters Kluwer's CCH Axcess (Federal and state K-1 data integration with 1-click automation) and ProSystem fx (automated K-1 data integration in one click). Joint marketing assets and dedicated landing pages exist for both integrations.
- Thomson Reuters (ONESOURCE, GoSystem Tax RS, UltraTax)flagshipK1 Aggregator integrates with Thomson Reuters ONESOURCE Income Tax, ONESOURCE Trust Tax, GoSystem Tax RS (including UBI Export to GoSystem RS for trust returns), and UltraTax (for Federal 1065 K-1 data transfer into 1040 returns). Featured as a 1-click integration in K1x Collective's Tax Preparation & Workflow category.
- GruntWorxcoreGruntWorx K-1 ADVANCED integration automates the aggregation, extraction, and organization of Schedule K-1 data, cutting manual work and improving accuracy. Listed in the Integrations & K1x API page under the K1x Collective partner program.
- Crowe LLPcoreK1x acquired tax-technology products from Crowe LLP — the December 2022 Edison Partners investment followed this acquisition, which helped position K1x as a leading provider of automated solutions for Schedule K-1 tax forms and tax-exempt organizations.
- K1x Collective Partner Program (Accounting Alliances & Associations)coreK1x is a member of premier accounting associations — extending capabilities to larger networks for knowledge sharing, education, and advocacy. The Collective program recruits Accounting Alliances & Associations partners as referral and co-marketing channels.
- Forvis MazarsflagshipForvis Mazars is both a major enterprise customer and a strategic implementation partner for K1x — co-branded case study and joint marketing on the K1x Reviews and Accounting Firm pages. They led K-1 Aggregator adoption across merged legacy firms and are showcased as the benchmark for record-breaking adoption.
Scale indicators12 records
Recent moves6 records
Expansion highlights6 records
K1x competitors and assessment
Company assessmentBroad incumbents
- Bloomberg Tax & Accounting: Tax research, compliance, and practice management suite for tax professionals; comparable as a broad incumbent offering overlap in compliance workflows for large accounting and corporate tax departments.
- Wolters Kluwer (CCH Axcess / ProSystem fx): Dominant professional tax software suite (CCH Axcess, ProSystem fx) used by the same accounting firms K1x serves; both an integration partner and a broad incumbent whose native AI features could rival K1x.
- Thomson Reuters (ONESOURCE / GoSystem / UltraTax): Suite of tax preparation platforms (ONESOURCE Income Tax, GoSystem Tax RS, UltraTax) competing with and integrating into K1x; a broad incumbent in tax prep with overlapping customer base of CPA firms.
- Intuit (ProConnect Tax / Lacerte): ProConnect Tax Online and Lacerte serve tax practitioners with K-1 import workflows; broad incumbent with significant R&D resources and a large installed base of accounting professionals.
- Vertex (Vertex Tax): Enterprise tax technology platform for indirect and direct tax determination and compliance; overlaps with K1x in serving corporate tax departments with complex, high-volume compliance workflows.
- Avalara: Cloud tax compliance automation primarily for sales/use tax but expanding into broader compliance; comparable as a public SaaS tax-compliance incumbent with similar enterprise GTM motion and scale.
Direct peers
- SurePrep: Tax document automation platform serving accounting firms with 1040 workpaper assembly, K-1, and document scanning; directly comparable to K1x in automating K-1 and 990-related workflows for CPA practices.
- GruntWorx: Automated tax document organization and K-1 ADVANCED product for accounting firms; overlaps with K1 Aggregator in K-1 extraction and is a K1x integration partner, making it a same-category competitor.
Emerging players
- Rossum: AI document processing platform with tax-form extraction capabilities; comparable as an emerging AI document-understanding player that could enter the K-1/990 vertical with generic OCR plus LLM pipelines.
- Karbon: Practice management/workflow SaaS for accounting firms; comparable as an adjacent SaaS platform serving the same primary segment (accounting firms) that K1x monetizes via K1 Aggregator.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
K1x social profiles
Digital presenceK1x compliance and trust
Trust signalCompliance2 records
K1x financial estimates
Financial estimateRevenue estimate
Valuation estimate
K1x leadership team
Management profileNumber of profiles
Profiles8 records
K1x subsidiaries and ownership
Company hierarchySubsidiaries1 record
K1x funding detail
Funding detailFunding overview
Funding rounds4 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
K1x 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 K1x
What does K1x do?
K1x develops an AI-native SaaS platform that automates tax compliance, data management, and reporting for private market investment entities. The platform is anchored by three core modules — K1 Aggregator (K-1/1099/W-2 data extraction and aggregation), K1 Creator (K-1 package production), and 990 Tracker (IRS-approved e-filing for Form 990 series) — connected via APIs and one-click integrations with leading tax preparation suites. It serves accounting firms, institutional investors, family offices, funds, fund administrators, and tax-exempt organizations in the US market.
Is K1x a public or private company?
K1x is a private company. It is classified as private equity controlled and is currently operating.
When was K1x founded?
K1x was founded in 2022. It employs 101 to 250 people.
Where is K1x based?
K1x is headquartered in Chicago, United States, in the North America region.
How does K1x make money?
Three revenue lines are on record. SaaS platform subscription is the primary driver. The others are professional services and support and API and integration access.
Who are K1x's main competitors?
Broad incumbents on record are Bloomberg Tax & Accounting, Wolters Kluwer (CCH Axcess / ProSystem fx), Thomson Reuters (ONESOURCE / GoSystem / UltraTax), Intuit (ProConnect Tax / Lacerte), Vertex (Vertex Tax) and Avalara. Direct peers are SurePrep and GruntWorx. Emerging players are Rossum and Karbon.
Does K1x have an API?
Yes. K1x offers two primary APIs: (1) K-1 Data-In API for uploading K-1s in bulk to the K-1 Reader for automated data extraction, and (2) K-1 Data-Out API for retrieving digital, structured K-1 data for export into tax workpapers, document management systems, or client management systems. APIs are accessible via the K1x Developer Portal. Developer documentation is at developers.k1x.io.
What industry is K1x in?
K1x's product category is Tax Compliance Software. Its primary akta.pro industry code is FSAGADAJ, Tax Planning & Personal Tax Optimization Tools, with a secondary code of BPAIADAO, Revenue Systems, E-Filing & Digital Tax Administration. Its NAICS code is 5412 and its SIC code is 7371.