Cloud Accounting Software for Firms: Xero, FreeAgent, Pennylane Compared

Cloud accounting software for accounting firms starts at £18 a month at Xero, £19 at FreeAgent and €7 at Pennylane, before the practice tools and compliance features that decide which platform a firm standardises on.

The choice carries more weight in 2026 than it did two years ago. Making Tax Digital for Income Tax has applied since April 6 to sole traders and landlords with income above £50,000, France’s e-invoicing mandate began on September 1, and US vendors are raising prices and adding AI.

This guide compares the platforms firms most often run with clients. It uses only prices and figures taken from vendor pages, regulators and company results dated 2026. Where a current list price could not be confirmed, it is left out.

What cloud accounting software for accounting firms does

Cloud accounting software keeps a client’s ledger on the vendor’s servers, so the client and the firm work on the same live data through a browser. Bank feeds post transactions daily. Invoices, bills and VAT returns are produced in the same system.

For a firm, the difference from desktop software is access and control. Staff open any client file without transferring a backup, and the partner sees one list of clients rather than a folder of exports.

Every platform below also connects to third-party apps for payroll, expenses, payments and document capture. Intuit’s May 2026 survey of 725 US accountants and bookkeepers found the average firm runs about 10 apps, and that only 41% say their tools are fully integrated. Integration depth is therefore a buying criterion, not a footnote.

Practice tools and multi-client access compared

Xero runs a Partner Programme that its pricing page says serves 250,000 accountants and bookkeepers. It includes a Partner Hub, practice management tools, Xero Ledger and Xero Tax. Firms comparing it with dedicated systems can start with Accountio’s guide to practice management software for accounting firms.

FreeAgent gives accountants and bookkeepers a free practice dashboard with no upfront cost. Firms manage every client from one view and can pass on discounted client pricing through its partner programme, according to the vendor’s pricing page.

QuickBooks Online lists five UK plans: Sole Trader Plus and Simple Start for one user, Essentials for three, Plus for five and Advanced for 25. The user caps matter to firms that give a bookkeeper, a manager and a partner access to the same client file.

Pennylane has a separate offer for accounting firms in France, covering production accounting software and engagement charters. Chief executive Arthur Waller said the French reform “has mainly accelerated the migration of accounting firms” rather than smaller businesses so far.

Sage is the other incumbent most UK firms will already hold licences for. Its pricing page could not be retrieved for this article, so no Sage prices or limits are quoted here.

Cloud accounting software for firms: what it costs

Xero’s UK plans are Ignite at £18 a month, Grow at £39, Comprehensive at £55 and Ultimate at £70, all excluding VAT. New customers receive 90% off for the first six months. Ignite caps users at 20 invoices and 10 bills; the higher plans are unlimited.

FreeAgent charges £19 a month for sole traders, £27 for partnerships and LLPs and £33 for limited companies. The first six months are half price, and the software is free for clients with NatWest, RBS, Ulster Bank or, for some plans, Mettle business accounts.

Pennylane prices in euros, excluding VAT: Starter at €7 a month, Basique at €14, Essentiel at €24 and Premium, which includes an accounting module, at €79. Each plan covers one user and up to 1,200 invoices a year. The company says e-invoicing is included in every plan at no extra cost.

QuickBooks raised prices in the US from August 1, and Intuit said on May 20 that QuickBooks Online Accounting revenue grew 22% in its third fiscal quarter, driven by higher effective prices, customer growth and mix shift. Current UK list prices were not displayed on Intuit’s UK page when it was checked, and secondary sources disagree, so none are quoted here. Firms should take a written quote before moving clients.

Making Tax Digital compatibility for UK firms

HMRC’s guidance says taxpayers within scope must use software that works with Making Tax Digital for Income Tax, and recommends checking with the provider that it meets their needs. The threshold is £50,000 of combined self-employment and property turnover, measured before expenses.

Agents can sign clients up themselves or send them an authorisation request link, HMRC said. The income threshold falls to £30,000 in April 2027 and £20,000 in April 2028, which will bring many smaller clients into scope.

Xero, QuickBooks and FreeAgent are all established in the UK software market, so for most firms the question is how many clients each platform can submit quarterly updates for from one login. Accountio’s guides to Making Tax Digital and income tax sign-up for accountants cover the practical steps. Its best cloud accounting software list covers the wider field.

US adoption and EU e-invoicing readiness

In the US, Intuit’s QuickBooks dominates firm workloads, and Xero is growing from a small base. Xero added 110,000 US customers in the year to March 2026, helped by its Melio acquisition, and ended the year with 4.92 million customers worldwide, Xero said on May 14.

Intuit’s survey, conducted in May 2026, found 92% of US firms invested in technology over the past year, spending about $21,000 on average. Eighty-eight per cent used AI for at least one client service. The survey does not report a cloud adoption rate.

In Europe, the pressure is regulatory. The European Commission said the VAT in the Digital Age package was adopted on March 11, 2025 and lets member states introduce mandatory e-invoicing. Digital reporting for cross-border B2B transactions starts on July 1, 2030, and domestic systems must align with the EU model by January 1, 2035.

France moved first. Its mandate took effect on September 1, 2026. Pennylane says it operates as an approved platform, and raised €175 million at a €3.5 billion valuation in January, led by TCV with Blackstone Growth. It reports 800,000 business customers, more than 6,000 partner accounting firms and €115 million of annual recurring revenue for 2025, against €60 million in 2024.

How firms should choose in 2026

A firm with mostly UK sole traders and small companies will weigh Xero, FreeAgent and QuickBooks on the Making Tax Digital workflow and the cost of passing licences to clients. A firm with clients in France should test Pennylane’s e-invoicing against its own ledger before the next quarter closes.

The next dates to plan against are April 2027, when the Making Tax Digital threshold falls to £30,000, and the second phase of France’s mandate in September 2027, when smaller companies must begin issuing e-invoices.