Drop your ledger's transaction export. Your browser checks the books, totals every payee against
the 1099 threshold and works the quarterly estimate - free, before you sign in, and nothing is
uploaded. Then a paid run writes the packet: the books verdict, the
1099 prep list and the estimate summary, each held to the
browser's arithmetic. US federal. Prepared for review by your accountant - not tax advice.
Each example has a saved model run for all three lanes, so you can see the whole page for free.
Working
Prepared for review by your accountant - not tax advice. Written by AI from the browser's figures - confirm before acting.
open items
uncategorized swing
prescan flags answered
disagreements
Open items
Ref
Issue
Effect on the tax figures
Fix
Assumptions
For your accountant
Prescan flags, answered
Reconciliation with your ledger
The verdict could not be looser than the browser's, every high or medium flag needed an open item, the uncategorized swing had to be stated, every ref real, every flag answered, and every figure in the prose looked up in what was sent.
Prepared for review by your accountant - not tax advice. Written by AI from the browser's figures - confirm before acting.
1099s to prepare
W-9s to collect
for the accountant
prescan flags answered
disagreements
1099 candidates
Ref
Payee
Form
Amount
W-9
Note
Missing W-9s (these block filing)
Possible duplicate payees
Corporation exemption to confirm
Payment processor note
Left off the list
Assumptions
For your accountant
Prescan flags, answered
Reconciliation with your payees
Every payee at or near the threshold needed one entry with the browser's amount and the ledger's W-9 status, a 1099 or an accountant decision when over the threshold, a W-9 request for every gap, a review for every possible duplicate and corporate name, and every figure in the prose looked up in what was sent.
Prepared for review by your accountant - not tax advice. Written by AI from the browser's figures - confirm before acting.
payment
due
catch-up
prescan flags answered
disagreements
Late quarters (each its own payment)
The calculation
Step
Amount
Basis
Assumptions
For your accountant
Prescan flags, answered
Reconciliation with the calculation
The payment, its due date and quarter had to be the browser's, every missed quarter its own catch-up line with the browser's amount, the assumptions had to name every lever, and every figure in the prose looked up in what was sent.
Raw model reply
The reply did not parse as the structured result, so it is shown as it arrived.
Your recent runs
If that did not work
Check that the export has a header row with date, payee, account and amount columns, that you
are signed in, and that your balance covers the amount reserved next to the button. The three
examples always work and cost nothing, so they are the quickest way to tell whether the problem
is your export or the service.
What this does, and what it does not
Books first: a tax number computed off unreconciled books is a number you might send to the IRS.
The prescan counts what is uncategorized and works out how far it could move the estimate at your
combined marginal rate, and looks for empty months (a missing bank feed), double postings, and
rows dated outside the year or after the close.
The 1099 view totals every payee for the year and tests services, rent and unclassified payments
against the year's threshold (USD 600 for 2025; USD 2,000 for payments made after 2025), with a
near-threshold band at two thirds of it. Likely duplicates - "Bob" and "Robert", an email and a
name - are flagged for you to confirm, never merged. Corporate names stay on the list with a note:
the exemption is your accountant's call, and payments to attorneys are reportable regardless.
The estimate annualises year-to-date net profit, applies self-employment tax (92.35% x 15.3%, the
Social Security part capped at the year's wage base), deducts half of it, applies the federal rate
you choose (22% by default) and spreads what is left over the quarters still ahead. A quarter
whose due date passed with nothing paid is its own catch-up line. State tax, QBI, retirement
contributions and other deductions are not applied - they are listed for your accountant.
It knows nothing you did not paste: no ledger connection, no IRS lookup. 2025 figures come from the
source skill's reference; 2026 figures are as published for 2026 - confirm them. Derived from the
agent skills @anthropics/tax-season-organizer
and @anthropics/tax-prep
(anthropics/knowledge-work-plugins, Apache-2.0). The example businesses are fictional.