Software that holds client books is a different product from software that holds your own, even when it is the same app. The tests that matter are per-client cost at 25 or 50 clients, one login instead of one per client, client review access without edit rights, standard exports at handoff, and an audit trail that shows who did what. Most software comparisons rank features. For a firm, the five tests above decide whether the tool scales with your client list or becomes a tax on it. Here is how the field looks against them as of August 2026.
Why is client bookkeeping software a different problem?
When the books are your own, a $40 subscription and a saved password are fine. When you keep books for thirty clients, everything multiplies: thirty subscriptions, thirty logins, thirty owners who want to see their numbers without breaking them, and thirty handoffs to tax software or a reviewer at year end. A feature that is a mild annoyance on one company file becomes a structural cost at N clients. That is why firm-facing software is judged less on any single feature and more on how its costs and access model behave as N grows. The work itself, importing, categorizing, reconciling, closing, is the write-up loop; our post on AI client write-up covers who does that labor. This post is about the software underneath it.
What does the mainstream landscape cost per client?
The two firm ecosystems most accountants know are QuickBooks and Xero, and both follow the same shape: the firm-side tooling is free, and the per-client file is the paid unit.
- QuickBooks Online Accountant. As of August 2026 the firm portal and your firm’s own books are free for accounting professionals. Each client, though, needs their own QuickBooks Online subscription, listed at $38 to $275 per month depending on tier. ProAdvisor discounts and firm-billed wholesale pricing (about half off list when the firm carries the bill) soften the number, but the structure stands: every client you win adds a subscription.
- Xero partner program. Free to join as of August 2026, with a free Xero subscription for the practice’s own books and partner-only ledger and cashbook plans that start at a few dollars per client per month for low-activity files. Full clients sit on standard Xero plans, billed per client.
Neither model is unreasonable, and the discounts are real. But at 25 to 50 clients the subscription line is hundreds of dollars a month before you have billed an hour, and it scales exactly as fast as your success does. Whoever carries the bill, firm or client, it is margin leaving the engagement.
How many logins should thirty clients take?
The quieter cost is credential sprawl. Per-company software means per-company access: a login, or an invite, or a client-managed password, for every file. Firms end up with password managers full of client credentials and onboarding checklists that begin with access requests. The alternative is an account model built around the firm: every client book lives under one account, one login opens all of them, and if an AI agent does the write-up work, one API key drives every book. On LedgerMCP that is the default shape: unlimited books under one free account, and a single key your agent uses to list clients, open a new book with a seeded chart of accounts, and post to the right one. Adding a client is opening a book, not provisioning an account.
What access should clients themselves get?
Clients need to see their books and must not be able to edit them. That sounds obvious, but plenty of setups force a bad choice: either the client owns the file and can wander through it (the classic source of mystery journal entries), or the client sees nothing until you email a PDF. The right shape is a review-only role. On LedgerMCP, book sharing gives a client exactly that: they see their dashboard and reports, and they can answer the questions you flag, this charge, business or personal, without any ability to write. Staff go the other way, invited by email as full members of the books they work. API keys can also be scoped read-only or to specific books, so a client’s own assistant can query without ever posting.
What makes exports and handoff safe?
Every client engagement ends in a handoff: to tax software, to a reviewing CPA, to a successor if the client leaves. Software that holds client books has to produce standard artifacts, a general ledger, a trial balance, a P&L, and a balance sheet, in a format anyone can open. Proprietary structures are fine right up until someone outside the tool needs the numbers. LedgerMCP keeps ordinary double-entry books and exports everything to CSV in one click per book: transactions, general ledger, chart of accounts, journal entries, tags, and assets, plus a 1099 report at year end. If you are moving files between systems, our guide to switching accounting software covers the migration mechanics.
What should the audit trail show?
With staff, clients, and possibly an agent all touching the books, "who did what" stops being a nice-to-have. The trail you want is structural, not a report the software generates on request: postings that cannot be silently edited (corrections are linked reversals), an append-only log that records the actor and time of every write, entries the database refuses unless they balance, and period locks that keep a closed month closed. On LedgerMCP those guarantees are enforced in the database, so they hold no matter which credential, human or agent, did the writing. That is what makes delegated work, to a staffer or to an AI, defensible in front of a reviewer.
Where does LedgerMCP fit for a firm?
LedgerMCP is bookkeeping software built for exactly this shape of practice: unlimited client books, free, on one account, one API key across all of them, review-only client sharing, standard double-entry with full CSV export, and the audit trail above. The only paid feature is live bank feeds, pooled across every book ($9, $19, or $79 per month total, not per client); clients on CSV import cost nothing. The trade you should weigh honestly: it is cash-basis oriented v1 software with no invoicing, payroll, or multi-currency, so full-service clients who need those belong elsewhere. And it ships no AI of its own; you bring Claude, ChatGPT, or any MCP client, and your agent does the write-up work through 65 tools. The full firm picture, economics, engagement flow, and limits, is on our bookkeeping for CPAs and accountants page.
Quick answers
What should bookkeeping software for accountants do differently?
It holds client books, not your own, so the tests change: what it costs per client at 25 or 50 clients, whether you manage one login or one per client, whether clients can review without editing, whether exports are standard double-entry any reviewer reads, and whether the audit trail shows who did what.
Is QuickBooks Online Accountant free?
The firm portal and the firm’s own books are free for accounting professionals as of August 2026. Each client still needs a QuickBooks Online subscription, listed at $38 to $275 per month, with ProAdvisor and firm-billed discounts softening but not removing the per-client line item.
How much does LedgerMCP cost per client book?
Nothing. Client books are unlimited and free on one account, with import, categorization, reconciliation, and reports included. The only paid feature is live bank feeds, pooled across all books at $9, $19, or $79 per month total, and clients on CSV import cost exactly zero.
Can clients see their books without being able to change them?
On LedgerMCP, yes. Book sharing gives a client a review-only role: they see their dashboard and reports and can answer questions about charges you flag, with no ability to write. Staff can be invited as full members, and API keys can be scoped read-only or to specific books.
