K-1 season-ready · 2026

Tax workpapers that ship on your terms.

K-1 production today is workflow software glued to an army of preparers. Aktus collapses that into one bespoke worker that ingests your fund’s primary documents and produces a defensible workpaper package, with every line traced to source.

5 days
From scoped pilot to first reviewable K-1 package
85%
Of workpaper lines generated without human re-keying
Big-4 ready
Audit binder format, with full provenance
40+ funds
Onboarded in a single tax season
/ 01
Who we serve

Built for the teams producing the workpaper at season.

Aktus deploys inside the firms whose K-1 packages, state allocations, and partner-level computations are the operational fabric of alternative-asset tax.

GP Tax Teams

In-house tax

Sponsors with a 4–12 person tax group running the workpaper before it goes to the prep firm.

  • Partner-level allocations
  • Multi-state composite
  • Foreign LP withholding
CPA Firms

Outsourced tax preparers

Top-100 firms with dedicated alts practices, Big-4 alt-investment groups and specialist boutiques.

  • High-volume K-1 production
  • Cross-fund consolidation
  • Audit-ready workpapers
Fund Admin

Admin-led tax

Admins offering tax as a bundled service, increasingly competing with traditional prep.

  • NAV-to-tax tie-out
  • Trial-balance reconciliation
  • Federal & state package
/ 02
What Aktus automates

From source documents to a defensible workpaper.

A bespoke AI worker reads the same primary sources a senior tax associate reads, and produces the workpaper they would produce, with every line citing the document it came from.

Inputs the worker ingests
  • Limited Partnership Agreements and side letters
  • GAAP trial balance and adjusting entries
  • Capital activity by partner, by period
  • Portfolio company K-1s and 1099s received
  • Prior-year workpapers, returns, and elections
  • State apportionment data and nexus history
Outputs the worker produces
  • Federal Schedule K-1s, partner by partner
  • State K-1s with composite and PTET computations
  • Book-to-tax reconciliations with line citations
  • Section 704(b) and tax capital allocations
  • Foreign withholding and treaty determinations
  • Full audit binder with hash-chained provenance
What stays with your team: elections, judgment, and the partner relationship. Our AI worker removes 70% of document re-keying and tie-out.
/ 03
How it works

Five steps from your prior return to a live workpaper.

Deployment maps onto your tax calendar. We start in the off-season with one fund, calibrate against your most recent two returns, and ramp before season.

01

Scope

We pick one fund and one return cycle. You name the primary documents and the workpaper format you sign off on.

Scope exampleA $1.2B credit fund · 2024 federal K-1 package.
02

Ingest

Documents land in a sovereign environment. Our AI worker builds a typed graph of every partner, allocation, and election.

ExampleLPA, side letters, GL, prior return, PCo K-1s.
03

Calibrate

We reproduce your two prior closed returns line-by-line. Variance report surfaces every disagreement for partner review.

ExampleWorker reproduces 2023 K-1 set within $0.02 / partner.
04

Deploy

Our AI worker runs the current cycle. Outputs land in your binder. Your reviewer signs off in their normal workflow.

ExampleLive for 2024 season on fund #1.
05

Expand

Additional funds added by configuration. Worker generalizes across LPA structures, fund types, and jurisdictions.

ExampleFunds #2–#6 onboarded by week 3 of season.
You sign off on the worker before a single K-1 leaves your firm. Every output is reviewable; nothing is a black box.
/ 04
Why this needs Aktus

Frontier models can’t produce defensible tax work alone.

Aktus makes them production-ready for alternative assets.

The frontier model problemTax preparation is the highest-stakes long-context reasoning problem in alts. A misread in the LPA waterfall, a missed election, a single allocation rounded wrong, all of these survive into the partner’s return. Frontier models read; they don’t take positions.
What Aktus solves

Defensible provenance

Every workpaper line cites the document, clause, and prior-year position it derives from. The worker refuses to produce a number it can’t trace.

Audit binder is generated, not assembled.
Where models alone fail

Cross-document consistency

A K-1 package crosses the LPA, side letters, GL, prior return, and PCo passthroughs. Context windows blur the distinctions between them.

Aktus uses typed retrieval, not prompt stuffing.
Worse than humans

Election & policy reasoning

Section 754, PTET opt-ins, foreign elections, these are firm policy choices, not facts. A general model has no view.

Aktus encodes your firm’s positions as policy.
An AI tax worker is not a model. It is a model wrapped in a partner-signed policy, governed by an evaluation harness, and run inside your perimeter.
/ 05
Context orchestration

How our AI worker stays accurate.

Aktus runs every worker against a continuously evaluated context graph, your LPAs, your prior returns, your firm’s policy book, so the worker’s answers track your firm’s tax practice, not the public internet.

01

Document graph

Every primary source, LPA, GL, prior return, is parsed into a typed graph with version history.

02

Policy layer

Your firm’s positions on elections, allocations, and nexus are first-class objects the worker queries.

03

Eval harness

A regression suite of prior-year returns runs on every model and prompt change. Deployment is gated on green.

04

Partner review

Position-level outputs route to a named partner. Their edits update the policy layer for next year.

/ 06
Economics

Tax season becomes a capacity problem you control.

Tax season is the highest-cost, lowest-margin period of the year. Aktus flattens it.

Tax season today
  • ×Headcount scales linearly with K-1 volume
  • ×Senior partners consumed by line-level review
  • ×March–April is a 70-hour-week staffing problem
  • ×New fund structures require new playbooks
  • ×Margin pressure on every fixed-fee engagement
With Aktus inside
  • Headcount scales with partner relationships
  • Partner review is exception-driven, not line-by-line
  • Season cadence flattens across Q1
  • New structures are a configuration, not a re-train
  • Per-K-1 unit cost falls every season
65%
Reduction in workpaper hours on funds in production
More partners served per senior reviewer
< 60 days
Payback on a typical pre-season pilot
/ 07
Sovereign deployment

Your perimeter. Your data. Your engagement letter.

Aktus runs inside your environment, against your documents, under your audit trail. Nothing leaves the boundary your engagement letter defines.

Sovereign by default

Deployed in your VPC or on-prem. Aktus operators see logs and metrics, never primary documents.

  • SOC 2 Type II
  • AWS, Azure, GCP, on-prem
  • Customer-managed keys

Big-4 audit ready

Workpaper outputs carry hash-chained provenance. Audit binder is generated alongside the return, not assembled after.

  • Immutable provenance log
  • Partner sign-off captured
  • Exportable for IRS exam

Model-agnostic

Run on frontier APIs, your private inference, or hybrid. Switch underlying models without redeploying the worker.

  • Anthropic, OpenAI, on-prem
  • Per-task model routing
  • Versioned, evaluated upgrades
Compatible with your alts stack
CCH Axcess
GoSystem
Allvue
SS&C
Workiva
Sage

Make this K-1 season the last hard one.

Your tax and accounting expertise. Our AI execution engine. The future of alternatives practice.