00Features

Everything you need to do your books.

Keep your transactions organized, your books up to date, and your finances easy to understand.

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FIG. 01General ledger · Revenue

42six.ai/app/ledger

General ledger

Period activity

400000 · Income

Revenue

Opening

$0.00

Net activity

$2,400.00

Ending

$2,400.00
General ledger from 2026-09-01 through 2026-09-30
DateDescriptionDebitCreditBalance
Beginning balance$0.00
September 2026$0.00$2,400.00
Sep 2ACH CREDIT INVOICE 1042$2,400.00$2,400.00
Ending balance$2,400.00
Sample Studio LLCNet income YTD as of Oct 1 $2,015.00Cash $2,015.00Uncategorized 0Synced 9:00 AM⌘K to search

02How it works

Three steps from bank to statements.

  1. Connect your accounts

    Connect each bank and card once. New transactions arrive on their own.

  2. Press Auto-Categorize

    Your rules go first, AI suggests an account for what they miss, and anything it is unsure of waits for you. Nothing posts until you confirm.

  3. Read your statements

    Income statement, balance sheet and trial balance. Each account on a statement opens to the lines behind it.

03Bank feeds

Every account, synced. Every transfer, recognized.

Connect an account once and its transactions arrive on their own, with the bank’s full memo, never a cleaned-up guess.

FIG. 03Transactions · a transfer waiting in Needs matching

42six.ai/app/transactions

Transactions

Bank activity, and what the books made of it.

To review · 6All accountsAll dates

Needs matching

1

Transfers between accounts

1

The same money leaving one account and arriving in another.

Sep 12

Checking (...4821)

TRANSFER TO SAVINGS ...4822

-$600.00
Sep 12

Savings (...4822)

TRANSFER FROM CHECKING ...4821

$600.00

Review queue

0 ready to post

CategoryFinalize
Actions
Sep 18
POS PURCHASE STORE 214
Checking (...4821)
-$186.00
Sep 12
TRANSFER FROM CHECKING ...4821Pair
Savings (...4822)
$600.00
Transfer
Sep 12
TRANSFER TO SAVINGS ...4822Pair
Checking (...4821)
-$600.00
Transfer
Sep 9
INSURANCE PREMIUM
Checking (...4821)
-$120.00
Sep 5
SOFTWARE SUBSCRIPTION
Checking (...4821)
-$79.00
Sep 2
ACH CREDIT INVOICE 1042
Checking (...4821)
$2,400.00
6 transactions
Sample Studio LLCNet income YTD as of Oct 1 $0.00Cash $0.00Uncategorized 6Synced 9:00 AM⌘K to search

04Categorize

One click sorts the month. You still decide.

Auto-Categorize runs when you press it. Your rules take what they know, AI suggests an account for the rest, and anything it is unsure of waits for you. Finalize all posts only what you have confirmed.

FIG. 04Transactions · after Auto-Categorize

42six.ai/app/transactions

Transactions

Bank activity, and what the books made of it.

To review · 6All accountsAll dates

Needs matching

1

Transfers between accounts

1

The same money leaving one account and arriving in another.

Sep 12

Checking (...4821)

TRANSFER TO SAVINGS ...4822

-$600.00
Sep 12

Savings (...4822)

TRANSFER FROM CHECKING ...4821

$600.00

Review queue

4 ready to post

CategoryFinalize
Actions
Sep 18
POS PURCHASE STORE 214
Checking (...4821)
-$186.00
Sep 12
TRANSFER FROM CHECKING ...4821Pair
Savings (...4822)
$600.00
Transfer
Sep 12
TRANSFER TO SAVINGS ...4822Pair
Checking (...4821)
-$600.00
Transfer
Sep 9
INSURANCE PREMIUM
Checking (...4821)
-$120.00
Sep 5
SOFTWARE SUBSCRIPTION
Checking (...4821)
-$79.00
Sep 2
ACH CREDIT INVOICE 1042
Checking (...4821)
$2,400.00
6 transactions
Sample Studio LLCNet income YTD as of Oct 1 $0.00Cash $0.00Uncategorized 6Synced 9:00 AM⌘K to search

05Ledger

A general ledger you can click through.

Pick an account and see every line that moved it, with a beginning balance and a running balance that has to end where the trial balance does.

FIG. 05General ledger · Office Expenses & Software

42six.ai/app/ledger

General ledger

Period activity

713000 · Expenses

Office Expenses & Software

Opening

$0.00

Net activity

$265.00

Ending

$265.00
General ledger from 2026-09-01 through 2026-09-30
DateDescriptionDebitCreditBalance
Beginning balance$0.00
September 2026$265.00$0.00
Sep 5SOFTWARE SUBSCRIPTION$79.00$79.00
Sep 18POS PURCHASE STORE 214$186.00$265.00
Ending balance$265.00
Sample Studio LLCNet income YTD as of Oct 1 $2,015.00Cash $2,015.00Uncategorized 0Synced 9:00 AM⌘K to search

06Reports

The statements a CPA would hand you.

Income statement, balance sheet and trial balance for any period, with the income statement month by month or as one column. Each account opens to its general ledger for the same dates.

FIG. 06Income statement · September

42six.ai/app/financials/income-statement

Income statement

Period activity

Sample Studio LLC

Statement of Income

For the period Sep 1–30, 2026

Income statement from 2026-09-01 through 2026-09-30
AccountSep 30, 2026
Revenues
Revenue$2,400.00
Total revenue$2,400.00
Operating Expenses
Insurance - General Liability$120.00
Office Expenses & Software$265.00
Total Operating Expenses$385.00
Net Income$2,015.00
Sample Studio LLCNet income YTD as of Oct 1 $2,015.00Cash $2,015.00Uncategorized 0Synced 9:00 AM⌘K to search

07Controls

Books that cannot drift out of balance.

The rules live in the database, not in a screen. They hold for every entry, from every path, for everyone who keeps the books.

  • Balanced or refused

    An entry that does not balance is refused when it commits. There is no way around it.

  • Lock the month

    A locked month will not take a posting from anyone, including you.

  • Book health

    Checks for the damage a hand-posted entry can do, run before you trust a report.

  • Reconcile to the cent

    Match each account to its bank statement, line by line, until the difference is zero.

  • Year-end close

    One step closes the year’s income and expenses into Retained Earnings.

  • No Opening Balance Equity

    Opening balances post to Retained Earnings, because that account means nobody decided.

08Entities

Every business, and every property, on its own books.

Each business is its own entity with its own chart of accounts and ledger. A rental property is its own entity too, so each one has its own income statement. Your personal books sit beside them, and you switch without signing out.

  1. Your businesses and the people you share them with: a partner, a spouse, a co-owner.

  2. A business, a rental property or your personal books, each with its own chart.

  3. The same rules on every set of books, whoever keeps them.

Personal or business?

On your personal books, each transaction asks one question. Yes moves it into the business’s books. No keeps it out.

09AI apps

Ask your books from ChatGPT or Claude.

Connect 42six to any AI app that speaks MCP. It can read your reports and ledger, and when it wants to change something, you see the change first and approve it.

  1. Connect

    Sign in from the AI app and choose which books it can see. Changes are off until you switch them on.

  2. Ask

    “What did we spend on software this quarter?” It answers from the same reports you see.

  3. Approve

    A change arrives as a preview. Nothing posts until you apply it, through the same checks as everything else.

10Your data

Bring your history in. Take your books anywhere.

  • Bank exports

    Read a bank’s CSV export in your browser, review it, then import it into one account.

  • Your chart of accounts

    Start from a CPA’s standard chart, or bring your own from a CSV file.

  • Opening balances

    A trial balance from your old system arrives as one balanced opening entry.

  • General ledger history

    Years of entries import from CSV. A file lands whole or not at all, and sending it twice posts nothing new.

  • Your books, exported

    Your chart of accounts, journal entries, bank transactions and trial balance in one Excel workbook.

  • A REST API with your keys

    Keys you limit to the books and data you choose, and revoke whenever you like.

11Who keeps the books

You keep them, or a CPA does.

  • You

    Categorize, reconcile and lock each month yourself, with every check above behind you.

  • Tim, a licensed CPA

    Tim can keep the books for you: categorizing, reconciling and a monthly close. A question about a transaction comes to you as a task.

  • Someone you trust

    A partner, a spouse or a co-owner joins your workspace as a member, with a second factor if they want one.

[12] Security

Your books are evidence. We keep them that way.

Security · Spec

S.01The ledger is guarded
Your browser can read your books but never write them directly. Every change goes through a checked door.
S.02Your books are yours alone
Each workspace is isolated in the database, row by row.
S.03Bank credentials encrypted
Connection credentials are encrypted and never reach your browser.
S.04Two-factor, your choice
Turn it on and every sign-in asks for it before your books open.
S.05A trail behind every change
Who changed what, and when, is recorded on every edit.
S.06Locked periods stay locked
A closed month cannot be edited out from under you.

13What’s next

When sign-ups open, connect a bank and see your month sorted.

Core and Pro carry every feature on this page; they differ only in how many books you keep. On Managed, a CPA keeps them for you.

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