US companies only, so UK firms can't use it; for Mercury customers it is free until the end of 2026.
Kenning's take
What it does
Mercury Books is double-entry accounting software inside Mercury, the US business banking platform. It pulls transactions from Mercury automatically, connects external financial platforms, produces profit and loss, cash flow and balance sheet reports, and supports cash or accrual accounting. Categorisation and reconciliation can be handed to Mercury's Command AI.
- Double-entry accounting from Mercury data
- P&L, cash flow and balance sheet reports
- Cash or accrual accounting
- Connects external financial platforms
- Command AI for categorisation and reconciliation
Who it suits. US-registered startups and small businesses that bank with Mercury and want their books in the same place.
Key facts
- Category
- Business tools
- Made by
- Mercury
- Based in
- United States
- How to get it
- for Mercury business account holders; Mercury accepts U.S. companies, including those with founders outside the US
- Works on
- Web
- In the UK
- No
- Free plan
- Fee waived until 31 December 2026
Pricing
| Plan | Price | Billed |
|---|---|---|
| Mercury Books | $35 | month |
FAQ
How much does Mercury Books cost?
$35 a month, with the fee waived until 31 December 2026.
Can UK businesses use Mercury Books?
Mercury accepts U.S. companies. Founders living outside the US can apply, but the business must be a U.S. company.
What reports does Mercury Books produce?
Profit and loss, cash flow and balance sheet reports.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
Similar tools
Abstra
Finance automation platform that turns invoice, reconciliation and payment routines into AI-built, auditable workflows.
WRITER Action Agent
WRITER's autonomous work agent for companies, now part of the wider WRITER Agent product.
AdGen AI
Generates ad copy and image ads from a website address and publishes them to Meta, Google, LinkedIn and TikTok.
Revmo (formerly Agent4)
AI agent that answers calls, texts and chats for multi-location businesses and books orders and appointments.