Issue 01Spring 2026An agentic ledger

This is what your tax year actually looks like.

Agentic tax co-pilot for self-employed professionals. Every receipt, every transaction, every trip — captured, classified, and audit-defensible for seven years.

CaptureClassifyCertify

§01 How the system works

01

Capture anywhere.

Plaid bank feed, phone-camera OCR, forwarded email receipts, manual mileage. Four capture modes converge into one ledger that reconciles itself.

45 transactions · 3 receipts · 1 trip · all linked

02

The agent does the math.

Monthly close, conversational Q&A, continuous deduction hunter. Routed cost-first across Haiku, Sonnet, and Opus.

last run · Haiku 4.5 · 2.1s · $0.003

03

If the IRS asks, you have receipts.

Hash-chained audit log, EXIF preserved, seven-year retention. The immutable record is a visible product surface, not a backend footnote.

chain intact · retained until Apr 2033

§02 Audit defense

“If the IRS asks,
you have receipts.”

Every write to the ledger is hashed against the previous row. Every image carries a SHA-256 signature and preserved EXIF. Seven years, visible, verifiable.

audit_log · tailchain intact
  1. RECEIPTS· update2026-04-19 02:17:43.812Z
    prev: 9754436f… · row: e3d8c2a1…
  2. TRIPS· insert2026-04-18 14:22:08.119Z
    prev: a0551c1e… · row: 9754436f…
  3. TRANSACTIONS· update2026-04-18 14:19:55.247Z
    prev: (null) · row: a0551c1e…
    user: system
  4. ───── chain verified · 3 entries · retained until 2033-04

Free tool · no signup

How much should you pay this quarter?

IRS-compliant 1040-ES math, safe-harbor check, and suggested payment for the next due date. Thirty seconds, no email gate.

Open the calculator