Patented Corporate Tax Software

Tax Data Operations Platform for Private Markets

Built for accounting firms, investors, family offices, fund administrators, and tax-exempt organizations to automate K-1, 1099, W-2, and 990 workflows—beyond extraction alone.


Our patented tax technology created the world’s first Digital K-1® experience

One secure, integrated workspace to receive, produce, and exchange private market tax data

PRODUCE

Designed for producing K-1s at scale under review and delivery pressure.
  • Wizard-driven guidance for tax filings
  • Standard workflow & schema
  • Universal footnote library

RECEIVE

Ideal for teams overwhelmed by inbound tax doc volume & complexity.
  • AI-powered data extraction
  • Auto validation of taxable income
  • Embedded tax guidance analytics

EXCHANGE

Built for organizations distributing tax data to many stakeholders securely and at scale.
  • Secure environment
  • Instant digital transfer
  • Auto matching of Investors to funds

BEYOND EXTRACTION

Extraction is only step one. K1x runs tax data operations end-to-end. K-1 receipt, production, exchange, and 990 workflows. With validation, governance, and integrations built in. Without the vendor lock-in.

EVALUATION CRITERIATHE OTHERS (Extraction-Only Tools)K1x PLATFORM (End-to-End Tax Data Ops)
What you getExtraction ToolA secure, integrated workspace to receive, produce, and exchange private market tax data complete automation of K-1s, 1099s, W-2s, 990s
OutputsXLSYour choice:

Digital .K1x file, APIs to your workpapers or other tech in your stack, integrations to 3rd party tax software like CCH & TR, XLS, or check out the partners in our K1xCollective
Depth of K-1/K-3 coverageOften face page focused; limited Whitepapers/footnotes/stateComprehensive extraction across federal + state, K-3, whitepapers, and footnotes (platform-grade for complex packages).
Validation & tax contextLimited validation; “data out” but user still must verify.Context-aware compliance with validation logic aligned to tax rules—built to reduce downstream review burden.
StandardizationOutputs vary by source; manual mapping and cleanup required.Standardized schema + structured data that stays consistent across entities, years, and recipients.
Workflow governance & auditabilityNext steps happen in email/spreadsheets; limited audit trail.Centralized workflow controls, versioning, and traceability designed for compliance and repeatability (operations, not one-off extraction).
Exchange & distributionExport/import between parties; rekeying and reconciliation areBuilt-in digital exchange so the right data reaches the right party fast—supports a structured digital file workflow (not just an export).
K-1 package productionNot designed for issuer workflows; typically outside scope.Supports K-1 production workflows (digital packages, footnotes, allocations, statements) alongside downstream distribution.
990 workflowsUsually separate tools/processes.Streamlines IRS-certified 990 e-filings and related exempt workflows as part of the platform. Fully integrated to flow your K1s into your 990T filings & directly e-filable with IRS & state jurisdictions
Integrations & APISiloed outputs; limited connectivity.Flexible integrations + API to keep your tax data moving across systems— connected or decoupled as needed.
Security & compliance postureVaries widely; sometimes unclear.Security-forward posture (matrix emphasizes SOC 2 and 7216 compliance).
Best fitSmall-volume, one-off conversion needs.High-volume, high-stakes private market workflows where speed + correctness + governance + exchange matter.
Note: Capabilities vary by vendor. This table reflects common extraction-only limitations versus K1x’s platform approach.
BENEFITS

100%

control and
transparency

66%

cycle time
reduction

improved staff engagement, retention and elevation

90%

manual data extraction 
elimination
hours of time restored
each week
weeks slashed each
cycle

+26%

savings in end to end
processing costs

You choose what to automate

Start with one workflow. Expand as your needs grow.  Without rebuilding your tax stack.

Automate Receipt
of K-1s, 1099s, and W-2s

Automatically aggregate federal K-1 and K-3 data plus state and foreign disclosures for portfolio-level review and reporting. Optional automation for 1099’s & W-2’s. 
Filterable/customizable data reports and exports for deep risk analysis, review, and Excel output options
Embedded project management and review features to keep the process running smoothly

Automate K-1
production

First-ever fully digital investor K-1 packages, including footnotes, allocations, and white paper statement data
Support for K, K-1, K-2, and K-3 and 42 state taxing jurisdiction
Instant Digital PDF creation options — compatible with existing portal providers

Automate Exchange of K-1 Data with K1xChange®

Because the hard part isn’t getting data out—it’s getting the right tax data to the right party, fast and safely.

Secure environment
Instant digital transfer of data between parties via the .K1x Digital File TM
Auto matching of investors to funds

Automate 990 Exempt Reporting and Filing

IRS approved e-filing for 990, 990-PF, 990-EZ, 990-T, 4720,
and 8868 + support for all 42 state taxing jurisdictions
Master Compensation module for reporting across multiple entities
Conflict of Interest modules to manage board questionnaires
Integrate K1x into the tools you already use, and keep your data moving across teams, systems, and stakeholders.

“K-2s and K-3s also used to be a nightmare for us. Now we have drag and drop and integration with important third-party software. We use K1x to help us do our 20 state returns –and to file on time without the hassles and wasted time.”

Take the K-1 Test Drive!

Drag and drop example K-1s into award-winning K1 Aggregator® software. Experience  the power of K1x automation and see results.

See extracted + validated results, review flags, and export-ready outputs.