None of the three publishes a fixed price for the licence that actually matters here, the unattended bot that runs invoice processing overnight. UiPath's Standard and Enterprise tiers are "Contact Sales for pricing", SS&C Blue Prism's Enterprise and Cloud plans are "Contact Us", and Automation Anywhere has no public price list at all. The real return depends on invoice volume, straight-through processing rate and ongoing bot maintenance, not the number a salesperson opens with. Verified UK deployments exist for UiPath and Blue Prism; Automation Anywhere's published invoice-processing evidence is international.
Key pointers
- Ask for a quote priced per unattended bot per year, since invoice processing runs unattended, not per named user.
- Get the document extraction module (UiPath Document Understanding, Automation Anywhere Document Automation, or Blue Prism's own Decipher IDP or a specialist partner product) quoted as a separate, metered line, not assumed to be included.
- Convert every US dollar quote to sterling at the day's Bank of England spot rate before comparing bids, not at whatever rate the vendor last quoted.
- Ask whether the invoice is VAT reverse-charged. If the contracting entity is outside the UK, your finance team will usually self-account for VAT rather than being charged it directly.
- Budget for bot maintenance separately from the licence. Independent estimates put it at 15% to 25% of the original build cost every year as source systems change their screens.
- Ask each shortlisted vendor for a reference from a UK finance team of comparable size, not just its headline international case study.
- Treat the first number quoted as a starting position. Independent pricing trackers suggest real UK deal prices land 20% to 40% below list.
Why Per-Bot Pricing Makes This Hard to Compare
UiPath, Automation Anywhere and Blue Prism are all enterprise robotic process automation (RPA) platforms, software that operates other applications the way a human would, clicking, reading screens and typing, to complete repetitive digital work without a person doing it. For invoice processing, the bot that matters is unattended: it runs on a server on a schedule, not on someone's desktop while they work.
Vendors price this differently underneath, but the shared structure is a platform or orchestration fee, a per-bot execution licence, and a separate charge for the document extraction layer that actually reads the invoice. A finance operations director comparing three quotes therefore needs each vendor to break the number down the same way, otherwise "cost per bot" from one supplier is not comparable to "cost per bot" from another if one has folded in document extraction and the other has not.
This scale of platform is not the right fit for a small business processing a few hundred invoices a month. All three vendors' enterprise tiers assume dedicated IT or automation centre-of-excellence resource to build, monitor and fix bots when source systems change. Smaller finance teams are usually better served by lighter, per-user automation already built into their existing finance software, a different decision from the one covered here.
How the Three Platforms Handle an Invoice Workflow
The pattern is broadly the same across all three products: a document capture and extraction layer reads the incoming invoice, whatever format it arrives in, a bot orchestration layer validates the extracted data against purchase orders and posts it into the finance system, and an exception queue routes anything the software cannot confidently match to a human for review.
UiPath's version of this is Document Understanding, now sold as IXP (intelligent extraction and processing), paired with Orchestrator to manage and schedule the unattended robots. In the NHS Shared Business Services deployment, staff previously spent around two minutes reviewing each of more than 25,000 invoice PDFs a year; the automation now runs overnight so the reconciled data is ready for the next working day, and the solution is designed to scale to 150,000-plus invoices a year as North Central London ICB merges into a larger organisation.
Automation Anywhere's equivalent is Document Automation, which the vendor says can scale from thousands to millions of documents and run 5 times faster using its Cloud Extraction Service, feeding into an Automation Co-Pilot layer for exception handling and three-way matching against purchase orders. Automation Anywhere's own published invoice-processing example is Jemena, an Australian utility, where the vendor reports 12,000 hours saved in five months and 99.9% document processing accuracy; the company has not published a comparable UK finance case study.
Blue Prism does have its own native document processing product, Decipher IDP, which uses OCR and validation to digitise documents and is included in the product portfolio for customers on production or business-critical support tiers. Even so, some UK customers pair Blue Prism with a specialist third-party document AI partner instead. In the Connells Group deployment, Blue Prism digital workers monitor a dedicated accounts payable inbox, collect invoice attachments and hand them to the partner's document AI for classification and field extraction with confidence scores, before Blue Prism workers format the data, enrich it with supplier information and post it into the invoicing system. That route needs two supplier relationships and two licences rather than one, which is a real cost and contract-management consideration even before comparing headline prices; using Decipher IDP instead keeps it to a single vendor relationship.
Pricing and Cost Model
As of the live pricing pages checked on 29 September 2026, none of the three vendors publishes a per-bot annual price for the unattended licence a UK enterprise finance team would actually buy.
| Platform | Published list price | Entry tier | Typical enterprise budget floor (independent estimate) | GBP equivalent (low end, estimate) |
|---|---|---|---|---|
| UiPath | Basic only, $25/month | Basic (capped at 2 robots) | $100,000/year | £75,470 |
| Automation Anywhere | None published | None, contact sales | $100,000/year | £75,470 |
| SS&C Blue Prism | None published | None, contact us | $150,000/year | £113,205 |
The GBP figures use the Bank of England's spot rate of $1 to £0.7547 on 28 September 2026: $100,000 multiplied by 0.7547 is £75,470, and $150,000 multiplied by 0.7547 is £113,205. These are the low ends of the one independent industry estimate cited above, not a vendor list price, and that same tracker warns headline figures can run 20% to 40% above what a buyer actually negotiates.
Three cost layers sit on top of whatever the base robot licence turns out to be. First, document extraction is metered separately. UiPath charges Document Understanding in Platform Units per page, for example 0.2 units per page through its Machine Learning Extractor, with the unit price itself only available from UiPath sales. Second, a Blue Prism deployment that pairs with a specialist document AI partner instead of Decipher IDP means two supplier contracts and two renewal dates to manage, not one. Third, bot maintenance is recurring, not one-off: expect it to run 15% to 25% of the original build cost every year, since a bot built against today's invoice template or accounting system screen breaks when that layout changes.
On VAT, if the contracting entity you sign with is a non-UK business supplying you an electronically supplied service, the reverse charge normally applies: your finance team self-accounts for the output VAT and can typically recover it as input tax, rather than the supplier charging VAT on the invoice. Confirm this in writing with each vendor's UK or EU contracting entity before assuming either treatment, because some suppliers do hold UK VAT registrations and charge it directly.
Vendor and Option Comparison
| Criterion | UiPath | Automation Anywhere | SS&C Blue Prism |
|---|---|---|---|
| Document extraction | Built in (Document Understanding / IXP), metered per page | Built in (Document Automation), consumption-based | Built in via Decipher IDP for higher support tiers; some UK customers pair it with a specialist partner instead |
| Published price for the unattended tier | No, contact sales | No, contact sales | No, contact us |
| Verified UK invoice-processing deployment | Yes, NHS Shared Business Services / NCL ICB | None published | Yes, Connells Group |
| Vendor's own headline outcome claim | 95% reduction in manual reconciliation and invoice effort (NHS SBS case) | Up to 90% straight-through processing, up to 80% efficiency gain | 98% of unseen invoice layouts handled, training time cut 90% (Connells case) |
| Typical enterprise budget floor (estimate) | $100,000/year (£75,470) | $100,000/year (£75,470) | $150,000/year (£113,205) |
| Who should not choose it | A team without in-house or partner capacity to maintain UI-dependent bots as source systems change | A UK finance team that needs a directly comparable UK reference before signing | A team that wants a single vendor and contract for the whole invoice pipeline |
None of the three has a universal edge. UiPath's advantage for this specific use case is that document extraction and bot orchestration come from one vendor with a UK public-sector reference already live. Automation Anywhere's own claimed straight-through processing and efficiency figures are strong, but a UK finance operations director has less independently verified UK evidence to check them against than with the other two. Blue Prism's Connells Group result is the most detailed and most clearly measured of the three, in pounds and hours, though that particular deployment used a second vendor relationship for document AI rather than Blue Prism's own Decipher IDP.
Expert Commentary
Sarah Rothenberg, Deputy Director Finance Business Partnering at NHS North Central London, said of the UiPath-based automation: "Having this in place means we're better prepared to deal with increased volumes without putting more strain on the team."
That is a public-sector deployment, not a private enterprise finance function, and it should be read as evidence of what UiPath's document processing and orchestration can do at scale rather than a like-for-like guide to a commercial enterprise's contract terms or pricing. The equivalent lesson from Connells Group's Blue Prism deployment is quantitative rather than quoted: it shows a finance team can move from a 450-invoice pilot to 8,800 invoices a month without adding headcount, which is the kind of scaling evidence worth asking every shortlisted vendor to demonstrate with a reference of comparable size to your own invoice volume, before signing on the strength of a demo.
Sources
- UiPath Plans and Pricing, UiPath
- Metering and charging logic (Unified Pricing), UiPath
- Strengthening financial reconciliation with process automation at NCL ICB, NHS Shared Business Services
- RPA, BPM and Intelligent Automation: Pricing, License Costs and Plans, SS&C Blue Prism
- Connells Group Saves £115K Annually with ABBYY and SS&C Blue Prism
- Document Automation, Automation Anywhere
- AI Agent Solution for Accounts Payable, Automation Anywhere
- RPA Pricing Comparison 2026: UiPath, AA, Power Automate, Automation Atlas
- Exchange rates, Bank of England
- VATPOSS14300, Reverse charge: services to which the reverse charge applies, HM Revenue and Customs
