Book a Demo

Best invoice processing software in 2026: 10 tools compared

Ten tools that read, check, approve or pay supplier invoices, grouped by what they're built for, with what each one checks, where the data goes and what's published about price.

Updated · 9 min read

Key takeaways

  • Invoice processing software captures supplier invoices, extracts the header fields and line items, checks them against POs and vendor records, routes them for approval and sends the data to the ERP.
  • The market splits four ways: extraction platforms (Docsumo, Rossum, Nanonets, ABBYY), AP suites that also pay vendors (BILL, Tipalti, Rillion), ERP modules (Sage Intacct) and procure-to-pay suites (Coupa, Basware).
  • A sponsored analyst report from Ardent Partners puts the average cost to process an invoice at $9.84 (2025 benchmarks). Best-in-Class AP teams spend 79% less per invoice than their peers.
  • Only four of the other nine tools publish US prices: BILL, Tipalti, Nanonets and Rossum. The rest are quoted.
  • Test any tool on your own invoices: long line-item tables, poor scans and duplicates break tools that look perfect in a demo.
On this page
  1. What invoice processing software does
  2. The four kinds of invoice processing software
  3. The 10 best invoice processing software tools
  4. Invoice processing software compared
  5. What invoice processing costs today
  6. How to choose invoice processing software
  7. The bottom line
  8. Frequently asked questions

Invoice processing software takes supplier invoices from receipt to the ERP: it captures them, extracts the header fields and line items, checks them against purchase orders and vendor records, and routes them for approval. The right tool depends on what you want to change. Extraction platforms such as Docsumo (our product) read and check invoices for the ERP or AP system you already run; AP suites such as BILL and Tipalti also pay the vendor; Sage Intacct does it inside its own ERP; and Coupa and Basware fold it into procure-to-pay.

Vendor details below come from each vendor's own website, checked in September 2026. Links are in the sources at the end.

Which team are you?

For AP teams with varied invoices
Docsumo reads any invoice layout, flags duplicates and sends checked data to the ERP or AP system you already run.
For small businesses
Docsumo doesn't pay vendors. BILL captures, approves and pays bills, with QuickBooks and Xero sync.
For teams paying global suppliers
Docsumo reads supplier invoices in most printed languages. It doesn't pay vendors. Tipalti adds supplier onboarding, tax compliance and payments to 200+ countries and territories.
For multi-entity teams
Docsumo sends checked invoice data through its API and webhooks to whichever ERP each entity runs. Its Business plan has unlimited users. Rillion gives one view of AP across offices, entities and ERPs.
For Sage Intacct users
Sage Intacct's AP agent drafts bills, matches them to POs and flags duplicates in the ledger.
For enterprise procure-to-pay
Docsumo matches each invoice line to its PO and receipt (Enterprise plan). It doesn't create POs or pay vendors. For invoices handled inside a spend suite, use Coupa (which now owns Rossum) or Basware.

What invoice processing software does

An invoice processing system moves every supplier invoice through the same stages, whatever the tool: capture, extraction, validation and matching, approval, and posting to the ERP. Tools differ on how well they read messy invoices, what they check and whether they also pay the vendor.

  • Email PDFs
  • Supplier portal
  • EDI
  • Scanned paper
Invoice processing
  1. 01Capture
  2. 02Extract
  3. 03Validate and match
  4. 04Approve
ERP or accounting system
The stages every supplier invoice goes through

Extraction is the step to test hardest: reading the total is easy, but reading every line item from every supplier's layout, across pages, is what removes the keying.

Invoice fields: Header
FieldExtracted valueRead
Vendor nameNortheast Kitchen Equipment
Invoice numberNKE-9921
Invoice date2026-08-12
Due date2026-09-11
Payment termsNet 30
PO number5498 (handwritten)
What extraction should produce: header fields, parties, every line item and the totals, in one structure.

This list covers invoices you receive (accounts payable). To create and send invoices to customers, you want invoicing or billing software instead.

The four kinds of invoice processing software

Pick the kind of tool first, then the vendor.

  • Extraction platforms

    Read and check every invoice and send the data to the ERP or AP system you already use, without replacing your AP process. Examples: Docsumo, Rossum, Nanonets, ABBYY FlexiCapture.

  • AP automation suites

    Invoice workflow software that captures, approves and pays in one product, so your AP process moves into it. Examples: BILL, Tipalti, Rillion, Stampli, AvidXchange, SAP Concur Invoice.

  • ERP modules

    AP automation inside the accounting system: nothing to integrate, as long as it's the ERP you run. Example: Sage Intacct.

  • Procure-to-pay suites

    Invoices as one part of purchasing and spend management, with e-invoicing networks and compliance. Examples: Coupa, Basware.

The 10 best invoice processing software tools

Docsumo is our product, so it's first, with a plain line on what it doesn't do. The others are grouped by what they're built for.

1. Docsumo

Extraction platformOur product
Docsumo is an intelligent document processing (IDP) platform. As invoice processing software, it reads invoices in any layout, printed or handwritten, extracts every line item, joins tables that run across pages and sends fields it's unsure about to a person for review. It doesn't pay vendors, and it runs in the cloud only.
Checks and routing
Flags duplicate invoices; approval routing on the Business plan; master data lookup and 2-way and 3-way matching on the Enterprise plan
Connects to
Your ERP or AP system, through the API and webhooks
Pricing
A free 14-day trial for up to 1,000 pages; Business and Enterprise plans are quoted
Best fitAP teams with varied invoices who want checked data in the systems they already use
  • 99%field-level accuracy across 250+ document types
  • 95%+of documents processed straight through, without manual review
  • 99%+touchless invoices at Valtatech

2. Rossum (now part of Coupa)

Extraction platform
Invoice and transactional document capture from Rossum Aurora, its document AI built on its own transactional LLM, in 276 languages and handwriting. Coupa acquired Rossum in May 2026 and already runs its AI inside Coupa AP; Rossum still sells its own plans.
Checks
Master data matching and duplicate detection, on the Business plan and up
Connects to
API; webhooks and SAP, Coupa, Workday and Oracle integrations from the Business plan
Pricing
From $18,000 a year, with a one-year minimum; 14-day free trial
Best fitFinance teams that want invoice capture with a review screen, especially on Coupa. See Docsumo vs Rossum.

3. Nanonets

Extraction platform
Now positioned as a platform that turns business processes into AI agents, with extraction by its own model, Nanonets OCR-3, as one step. Its agents cover AP, reconciliation, cash application and month-end close.
Checks
Business rules inside each agent; specific checks aren't listed
Connects to
API, email and cloud storage; SAP, Oracle, NetSuite, Dynamics 365, QuickBooks, Xero and others
Pricing
$50 in free credits, then from $100 a month; each workflow step is billed per run, from $0.02 to $0.30
Best fitTeams that want AI agents across AP and other finance work. See Docsumo vs Nanonets.

4. ABBYY FlexiCapture

Extraction platform
ABBYY's long-standing enterprise capture platform: classification, OCR and ICR for printed and handwritten text, NLP, and barcode and OMR reading, for invoices and many other documents. ABBYY sells Vantage beside it as its newer platform.
Checks
Built-in validation rules and lookups against your databases, with a verification station where people check fields
Connects to
APIs and scripting for systems such as UiPath, Blue Prism, Pega and Laserfiche; JSON export; an SDK for your own applications
Pricing
Not published
Best fitEnterprises that need on-premises capture or already run ABBYY

5. BILL

AP suite
A financial operations platform for small and midsize businesses and accounting firms. Its AP product captures bills with AI, routes them for approval and pays them.
Checks
2-way matching on the Corporate plan; 2- and 3-way on Enterprise
Pays vendors
ACH, virtual card, credit card, check and international wire
Connects to
QuickBooks and Xero; NetSuite, Sage Intacct and Microsoft Dynamics on higher plans
Pricing
$49 to $89 per user per month; Enterprise is quoted
Best fitSmall and midsize businesses that want bills captured, approved and paid in one place

6. Tipalti

AP suite
A finance automation platform built around paying suppliers worldwide. Its AP product captures and codes invoices with AI, matches them to POs and handles supplier onboarding and tax compliance.
Checks
2- and 3-way PO matching; tax compliance
Pays vendors
200+ countries and territories, in 120 currencies
Connects to
Pre-built ERP integrations, including NetSuite, Microsoft Dynamics, SAP Business One, Sage and QuickBooks, plus APIs
Pricing
From $99 a month, plus per-invoice and payment fees
Best fitCompanies paying many suppliers across countries and currencies

7. Rillion

AP suite
AP automation for mid-sized and large companies with several entities: AI invoice capture with no templates to set up, approver prediction, PO matching and one view across offices and entities.
Checks
2- and 3-way PO matching, as an add-on
Pays vendors
An add-on, US only
Connects to
50+ ERPs, including Dynamics 365, NetSuite, Sage Intacct, Sage X3 and SAP Business One
Pricing
Not published; unlimited users and entities, a 12-month minimum and no trial. AI invoice capture is also an add-on
Best fitTeams running AP across several entities or ERPs

8. Sage Intacct

ERP module
Cloud accounting and financial management with multi-entity accounting. Its AP Automation agent reads bills, creates drafts, matches them to POs and routes them for approval inside the general ledger.
Checks
PO matching and duplicate flags
Pays vendors
Check, ACH or virtual card
Connects to
Native to the Sage Intacct general ledger, with 350+ integrations
Pricing
Quoted in the US
Best fitTeams whose accounting already runs on Sage Intacct

9. Coupa

P2P suite
A spend management platform for procurement, invoicing, payments and expenses. Its AP automation uses Rossum's AI to capture invoices in any format or language without templates.
Checks
2- and 3-way matching; e-invoicing compliance in 50+ countries
Pays vendors
Coupa Pay and virtual cards
Connects to
SAP, Oracle, NetSuite, Microsoft Dynamics, Workday, QuickBooks and Xero
Pricing
Not published
Best fitMid-market and large companies that want invoices handled inside one spend suite

10. Basware

P2P suite
AI-driven invoice lifecycle management and AP automation, built around an e-invoicing network, with procure-to-pay available. It takes paper, PDF, EDI and XML invoices, plus Peppol and other e-invoice formats.
Checks
PO and non-PO invoice matching; supplier statement matching
Connects to
Any ERP, with SAP highlighted; an e-invoicing network of 20M+ suppliers and buyers in 100+ VAT-compliant countries
Pricing
Not published
Best fitLarge, multi-country AP teams with e-invoicing requirements

Invoice processing software compared

ToolChecksPays vendorsConnects toPricing
Extraction platforms4 tools
DocsumoOur productDuplicates; 2- and 3-way matching (Enterprise plan)NoAPI, webhooksFree trial; quoted plans
Rossum (part of Coupa)Master data matching, duplicates (Business plan)Not describedAPI; SAP, Coupa, Workday, OracleFrom $18,000/yr
NanonetsNot describedNot describedAPI; SAP, Oracle, NetSuite, XeroFrom $100/mo plus usage
ABBYY FlexiCaptureValidation rules, database lookupsNot describedAPIs; UiPath, Blue Prism; SDKNot published
AP suites3 tools
BILL2-way (Corporate), 3-way (Enterprise)YesQuickBooks, Xero, NetSuite, Sage IntacctFrom $49/user/mo
Tipalti2- and 3-way, tax complianceYesNetSuite, Dynamics, SAP, Sage, QuickBooksFrom $99/mo plus fees
Rillion2- and 3-way (add-on)Add-on, US only50+ ERPs, incl. NetSuite, Dynamics 365Not published
ERP modules1 tool
Sage IntacctPO matching, duplicate flagsYesNative to Sage IntacctQuoted (US)
P2P suites2 tools
Coupa2- and 3-way, e-invoicing complianceYesSAP, Oracle, NetSuite, Dynamics, WorkdayNot published
BaswarePO, non-PO and statement matchingNot describedAny ERP, e-invoicing networkNot published

What invoice processing costs today

Ardent Partners' 2025 benchmarks come from a sponsored analyst report. They put the average cost to process one invoice at $9.84 and the average processing time at 8.2 days. They also show that 18.4% of invoices end up as exceptions. Best-in-Class AP teams spend 79% less per invoice than their peers. The calculator starts from those averages: put in your own volume, cost and software quote.

What invoice processing costs you

Put in your own numbers. The cost and exception-rate defaults are the 2025 averages across AP teams.

Average across AP teams: $9.84 (Ardent Partners' sponsored analyst report, 2025)
Average invoice exception rate: 18.4% (Ardent Partners, 2025)
From your vendor's quote
Cost today, per month
$19,680
Cost with automation, per month
$3,621
Difference per month
$16,059
Difference per year
$192,707
How it's worked out
  • Cost today is invoices per month times the cost of one invoice.
  • With automation, an invoice that still needs a person costs what it costs today, and the rest cost only the software.
  • It leaves out late-payment fees and missed early-payment discounts, which usually make the gap bigger.

Source: Ardent Partners, State of ePayables 2025: AP benchmarks (sponsored analyst report, Jan 2026)

The exception rate is the number a trial should prove: it's the share of your invoices a person still has to touch.

How to choose invoice processing software

  1. Decide what you're replacingIf your AP process works and the pain is keying and checking invoices, shortlist extraction platforms. If you want to move approvals and payments into a new tool as well, shortlist suites.
  2. Test on your own invoicesLong line-item invoices, multi-page tables, poor scans, credit notes, handwritten notes and a few known duplicates.
  3. Measure field-level accuracyCheck every extracted field, line items included. Right totals with wrong lines still leave you keying.
  4. Follow the exceptionsSee where unsure fields and failed matches go, what the reviewer sees and how long a fix takes.
  5. Test the checksRun your duplicates, a price that doesn't match the PO and an unknown vendor, and see which get caught. More in duplicate invoice detection.
  6. Price a full yearAdd software, implementation and review time. Per-user, per-page and per-invoice prices only compare once you do.

The bottom line

Pick the kind of tool before the vendor. If your AP process works and the problem is getting clean, checked invoice data into it, an extraction platform such as Docsumo fixes that without replacing anything; see accounts payable automation. For capture, approvals and payments in one new tool, look at BILL, Tipalti or Rillion. On Sage Intacct, start with its AP agent, and inside a spend suite, look at Coupa or Basware. More suites are compared in our AP automation software comparison.

Book a demo and bring a few of your hardest invoices, or start a free trial.

Frequently asked questions

What is invoice processing software?

Invoice processing software handles the invoices you receive from suppliers. It captures them from email, portals, EDI and paper, extracts the header fields and line items, checks them against purchase orders and vendor records, routes them for approval and sends the data to your ERP; some tools also pay the vendor.

What is the best invoice processing software for small businesses?

For a small business that wants bills captured, approved and paid in one place, an AP suite such as BILL fits, from $49 per user per month. Teams already on Sage Intacct can start with its AP automation agent. If your invoices vary a lot and you want the data checked before it reaches your accounting system, Docsumo's free trial covers 1,000 pages over 14 days.

What's the difference between invoice processing software and invoicing software?

Invoice processing (or invoice management) software handles the invoices you receive and pay: accounts payable. Invoicing or billing software creates and sends invoices to your customers and tracks what they owe you: accounts receivable.

How much does it cost to process an invoice?

Ardent Partners' 2025 benchmarks come from a sponsored analyst report. They put the average at $9.84 per invoice, with an average processing time of 8.2 days. Best-in-Class AP teams spend 79% less per invoice than their peers. Your own figure is total AP cost divided by the number of invoices processed.

Does invoice processing software integrate with ERP systems?

Yes, in different ways. AP suites list pre-built ERP connectors, such as BILL's sync with QuickBooks and Xero; ERP modules are part of the ERP; and extraction platforms such as Docsumo send the data to whichever ERP or AP system you use through an API and webhooks.

Can invoice processing software read handwritten or scanned invoices?

Most AI-based tools read scans, and some read handwriting: Docsumo reads handwritten text, Rossum lists 276 languages and handwriting, and ABBYY FlexiCapture reads handwritten data (ICR). Results vary with image quality, so test your worst scans.

Sources

  1. Ardent Partners: State of ePayables (Part Nine), AP benchmarks and Best-in-Class performance (sponsored analyst report, Jan 2026)
  2. Rossum: homepage
  3. Rossum: pricing
  4. Rossum: Coupa acquires Rossum (May 12, 2026)
  5. Nanonets: homepage
  6. Nanonets: pricing
  7. ABBYY: FlexiCapture
  8. BILL: pricing
  9. Tipalti: accounts payable software
  10. Tipalti: pricing
  11. Rillion: AP automation
  12. Rillion: pricing
  13. Rillion: ERP integrations
  14. Sage Intacct: accounts payable automation
  15. Sage Intacct: pricing (US)
  16. Coupa: AP automation
  17. Coupa: invoicing
  18. Basware: invoice lifecycle management and AP automation
  19. Basware: e-invoicing network
  20. Stampli: AP automation platform
  21. AvidXchange: AP automation
  22. SAP Concur: Concur Invoice

First published . Last updated .

More on invoices & AP →

See Docsumo read your own documents

Bring a few real samples. We'll show the fields extracted, the checks that ran and what a reviewer would see.

Book a demo →or get a free trial (1,000 pages)