Clean books without the complexity

Operator-first accounting for small businesses. Capture receipts, draft entries with AI, and post with confidence.

Why Marathon Books?

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Capture first

Snap receipts and jot notes. No accounting knowledge needed. We'll help you figure it out later.

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AI suggests, you decide

Our AI proposes journal entries and accounts. You review, adjust, and approve before posting.

✓

Post with confidence

Entries are immutable once posted. Corrections happen via reversal entries for a clean audit trail.

The workflow

1

Capture

You or your team captures receipts, photos, and notes in the inbox. No decisions required yet.

2

Draft

AI creates draft journal entries (fully balanced). You can edit, add accounts, or create your own.

3

Post

Review and approve entries. Once posted, they're locked in. Your ledger is now official.

Built in

Financial oversight across all your businesses

Your financial command center across every business you run

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One view, all businesses

See every business at a glance. Revenue, expenses, profit — all in plain language.

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Know your next move

AI-powered guidance tells you exactly what to focus on next, across all your entities.

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Built for the long run

Track progress, spot risks early, and build wealth step by step over time.