Every few months someone asks me to settle this, usually while already committed to one of the three. So the short version first: none of these platforms will be the reason your firm succeeds or fails, and the switching cost is higher than the difference between them. If you are already on one and it works, the interesting question is not which to move to but what you have not connected to it yet.
If you are genuinely choosing, the dimension that gets underweighted is how easily the thing you pick will talk to everything else you run. That is where the real money is, and it is the dimension vendors compete on least visibly.
| Xero | QuickBooks | Sage | |
|---|---|---|---|
| Best fit | Owner-managed businesses with other software to connect | Sole traders and smaller UK businesses | Established businesses with payroll or stock, Sage 50 incumbents |
| UK list pricing | Published openly: £18 / £39 / £55 / £70 a month excl. VAT for Ignite, Grow, Comprehensive, Ultimate verified 22 Oct 2026 | Not quoted here: prices load dynamically and did not render checked 22 Oct 2026 | Not quoted here: pricing pages refused automated access checked 22 Oct 2026 |
| Entry-plan limits | Ignite capped at 20 invoices and 10 bills a month; £0.20 per bill or payroll payment verified 22 Oct 2026 | Lowest tier is single-user and excludes direct VAT submission | Two product lines under one brand, which is the real decision |
| Automation base | Strongest of the three in my build experience | Workable | Depends entirely on cloud versus Sage 50 |
| Ownership of capture tooling | Owns Hubdoc | Receipt capture in-product | Owns AutoEntry |
Who each one actually suits
Xero
Xero is the platform I would pick if I knew nothing about a business except that it uses other software. The API is the one I reach for first when a client wants their ledger connected to a CRM, a job system, a payments provider or a tool you have built yourself, and the app ecosystem is deepest in the categories small firms actually need: bills and expenses, payroll, stock, practice reporting.
Its pricing is also the most honest of the three, in the narrow sense that you can read it. The UK page lists Ignite, Grow, Comprehensive and Ultimate at £18, £39, £55 and £70 a month excluding VAT, with a 90% discount running on the first six months for a first organisation verified 22 Oct 2026. The detail worth catching is at the bottom of the entry tier: Ignite is capped at 20 invoices and 10 bills a month, and bill and payroll payments cost £0.20 each on that plan verified 22 Oct 2026. For a business with a heavy purchase ledger, that cap and not the headline price decides the tier. Xero also notes that its old Starter, Standard and Premium plans are no longer sold, which matters if you are reading a comparison written before the change.
QuickBooks
QuickBooks is the one that wins on the first conversation with a sole trader. The product is easier to look at than either competitor, the sole-trader tier is aimed squarely at Making Tax Digital for Income Tax, and Intuit’s UK marketing is relentless in a way that means your clients will have heard of it.
The thing to check on the lowest tier is what it does not do. Intuit’s own page says the sole-trader plan excludes direct VAT submission to HMRC and the VAT error checker, which is fine for an unregistered trader and a trap if that trader registers mid-year. I could not read Intuit’s current UK prices today because the pricing page loads them in the browser and they did not render, so there are no QuickBooks figures on this page. Get them from Intuit, and get the post-discount price in writing.
Sage
Sage is two propositions wearing one logo, and most comparisons blur them. Sage Accounting is the cloud small-business product. Sage 50 is the established desktop-lineage product that a large number of UK businesses, and a large number of practice staff, have used for twenty years. They are not interchangeable, and the automation answer for each is different.
Sage’s advantage is incumbency and depth where businesses have real operational complexity: payroll, stock, multi-entity. Its disadvantage, for the question this page is about, is that automating against a desktop-lineage product is a different exercise from calling a cloud API. Sage’s UK pricing pages refused automated access when I checked today, so no Sage prices appear here either.
MTD: the posture question, not the badge
All three are long-established UK products, and none of them certifies itself. HMRC runs a recognition process and publishes a software finder, having removed its old listing table in July 2025, and states that it does not recommend any product or software provider[1]. So the vendor badge on a marketing page is not the check. The check is the specific product and plan, against HMRC’s finder, before you buy.
Timing matters more than product choice here. HMRC’s thresholds for Making Tax Digital for Income Tax step down over three years: qualifying income above £50,000 in 2024 to 2025 brought you in from 6 April 2026, above £30,000 in 2025 to 2026 brings you in from 6 April 2027, and above £20,000 in 2026 to 2027 from 6 April 2028[2]. For a practice, that is a three-year wave of clients needing software who did not need it before, and the sensible planning unit is the wave, not the client.
Which one automates best
This is the part I care about, and it is the part a feature matrix will not answer.
Automation on an accounting platform comes down to four things: whether there is a real API, whether the data model is predictable, whether the events you care about can trigger something, and how much of the connector work somebody has already done for you. All three publish developer APIs. They are not equally pleasant.
Xero is where bespoke integration work goes fastest in my experience, which is why it is my default recommendation when a client’s ledger needs to be part of a larger system rather than a destination. QuickBooks is workable and occasionally fiddly. Sage splits: Sage Accounting is a normal cloud integration target, and Sage 50 usually means exports, scheduled jobs and a conversation about where the data file lives.
The practical consequence for a buying decision: if you can see a future in which your ledger needs to speak to a job system, a CRM, a stock tool or something you have built yourself, the platform choice is really an integration-cost choice, and the gap between the three is larger than the gap in subscription price.
The capture layer deserves the same scrutiny, and it is covered in detail in accounts payable automation. Note that two of the three vendors own a capture product outright, Xero with Hubdoc and Sage with AutoEntry, which is good for integration and bad for your ability to compare the cost of the whole pipeline.
Export and lock-in
Everything exports. That is not the issue.
What does not come out cleanly is the part that makes the history useful: attachments tied to transactions, reconciliation state, bank feed history, the audit trail of who changed what. A migration delivers you a trial balance and a pile of CSVs, and the year of history your client expects to still be able to click through stays behind in the old system. Plan on paying for read-only access to the old platform for a year, or on exporting documents separately and deliberately.
Two smaller lock-in points. Bank feeds have to be re-established and re-authorised at the bank, which is slower than anyone budgets for. And a practice that has built workflow around one platform’s practice tooling has a switching cost in staff habit that does not appear on any invoice.
Where each is weakest
- Xero. Tier limits bite in odd places, the entry plan’s invoice and bill caps most of all, and per-payment charges on that plan mean the cheapest tier is not always the cheapest answer. Payroll is capped by headcount per tier rather than priced as a module you can size freely.
- QuickBooks. Price opacity. A pricing page that will not show a price without running JavaScript is an irritation when you are comparing, and the pattern of deep introductory discounts means the number you agree to is rarely the number you pay in year two.
- Sage. The brand covers two different products with different automation realities, and buyers routinely think they are choosing one when they are being sold the other. Establish which product line is on the quote before anything else.
- All three. None of them will fix a process problem. A business that cannot say who approves a purchase will have exactly the same problem on a new platform, with a migration bill attached.
Choosing
- Choose Xero if your ledger needs to connect to other systems, now or plausibly within two years, or if you want published pricing you can plan against. Check the bill and invoice caps against your real volumes before picking a tier.
- Choose QuickBooks if your book is weighted towards sole traders and smaller businesses where price and simplicity decide the sale, and you are comfortable negotiating on the post-discount price.
- Choose Sage if the business has real operational complexity in payroll or stock, or the practice already runs Sage 50 competently. Be explicit about which Sage product you are buying.
- Choose none of them if you are already on one that works. The switching cost is real, the feature gap is not decisive, and the money is better spent connecting what you have to everything else you run.
Platform choice is a one-afternoon decision that firms stretch over months. What the platform is connected to is the decision that keeps paying back. The practice-level view sits at AI for accountancy firms and AI and automation for accountants.
What I could not verify for this page
Because the rule on this site is that a number has to be checked at source or not printed: QuickBooks UK list prices did not render on Intuit’s pricing page when I fetched it on 22 October 2026, and Sage’s UK pricing pages returned a block to automated access the same day. There are therefore no QuickBooks or Sage prices on this page, and the plan inclusions described for those two are structural rather than priced. Xero’s figures come from its own UK pricing page on the same date. If you are reading this well after the last review date at the top, treat every price as a starting point for your own check.
This article is for informational purposes only and does not constitute tax, accounting or compliance advice. Pricing and product features change; verify against the vendor and HMRC before relying on them.
Sources
[1] HM Revenue & Customs, ‘Choose the right software for Making Tax Digital for Income Tax’. Available at: https://www.gov.uk/guidance/find-software-thats-compatible-with-making-tax-digital-for-income-tax
[2] HM Revenue & Customs, ‘Find out if and when you need to use Making Tax Digital for Income Tax’. Available at: https://www.gov.uk/guidance/check-if-youre-eligible-for-making-tax-digital-for-income-tax