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Invoice Approval Software

Invoice approval software fits teams whose biggest problem is invoices waiting on approvers, routing by policy, and chasing budget owners.

Written by Rajat GuptaFact-checked by Chandrasmita

Every accounts payable automation software tool compared

19 tools in this category. A starting price is printed only where the vendor publishes a figure; quote only means it does not. "Best for" is each tool's own authored best-fit line.
ToolStarting priceDeploymentFree trialBest for
TipaltiSponsoredFrom $99/month (Accounts Payable)CloudNoMid-market to enterprise finance teams with significant international supplier bases, multi-currency payment requirements, or complex supplier onboarding needs.
BILL$49 per user/month (Essentials)CloudYesSmall businesses and growing companies (typically under 50 employees in the finance function) with domestic US vendor bases tightly integrated with QuickBooks, Xero, or Sage.
Stampliquote onlyCloudNoMid-market AP teams whose primary pain is approval delays, communication bottlenecks around invoices, and the need for fast deployment without a multi-month integration project.
Airbasequote onlyCloudNoMid-market finance teams (100-2,000 employees) that want to consolidate AP, corporate cards, and expense reimbursements into one platform with a single GL sync.
Coupaquote onlyCloudNoEnterprise procurement and finance teams that want AP automation as part of a broader source-to-pay platform covering procurement, expenses, and supplier management.
Baswarequote onlyCloudNoLarge enterprise finance teams in global organizations with high invoice volumes, complex multi-entity AP workflows, and a need for e-invoicing compliance across European or global supplier networks.
Mediusquote onlyCloudNoMid-market to enterprise AP teams that want strong AI-driven invoice processing automation and fraud detection, particularly in ERP environments running Microsoft Dynamics or SAP.
Yoozquote onlyCloudYesMid-market finance teams that want cloud-native AP automation with strong AI capture, good ERP connector breadth, and a faster-than-enterprise implementation path.
Eskerquote onlyCloudNoFinance teams that want AP automation integrated with AR automation and order management in a single platform, reducing the vendor footprint across the order-to-cash and procure-to-pay cycles.
AvidXchangequote onlyCloudNoMid-market companies in specific industries (real estate, construction, community management) that process high invoice volumes and want integrated AP automation with managed payment services.
SAP Aribaquote onlyCloudNoLarge enterprises already on SAP ERP that want AP automation integrated with SAP's procurement and supplier network without adding a third-party integration layer.
Ramp$0/mo/user (Free)CloudNoGrowth-stage companies and mid-market teams that want corporate card controls, bill pay, and expense management in a single platform with no software fees.
MineralTreequote onlyCloudNoMid-market companies (100-5,000 employees) on NetSuite, Sage, or Microsoft Dynamics that need end-to-end AP automation without enterprise pricing.
PrecoroFrom $499/month (Core), billed annuallyCloudYesMid-market companies (50-1,000 employees) that need structured PO management with budget controls, approval workflows, and basic three-way matching.
Melio$0 free forever (Go, one user)CloudNoVery small businesses (1-20 employees) that want simple invoicing paired with bill pay and vendor payment management at minimal cost.
Centimequote onlyCloudNoMid-market finance teams that want combined AR automation and AP management in a single platform, with cash flow forecasting included.
Kofaxquote onlyCloud / On-premiseNoKofax is best for enterprises with high-volume, complex document processing needs where OCR accuracy and flexible deployment matter more than a turnkey cloud experience.
Rillionquote onlyCloudNoRillion is a reliable AP automation choice for ERP-centric finance teams, especially those on SAP or Dynamics, though its brand transition from ReadSoft means less market visibility.
ApprovalMaxquote onlyCloudYesApprovalMax is the right tool for Xero and QuickBooks users who need better approval controls without a full AP automation overhaul.

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Sources we used

We rely on vendor documentation, pricing pages and other primary sources. We do not use G2 or Capterra ratings as ranking inputs.

Primary sources

  • Official vendor documentation, pricing pages, help centers, and release notes
  • Public analyst reports, market commentary, and relevant public filings
  • Practitioner discussions in communities such as Reddit

What we exclude

  • G2 and Capterra ratings as ranking inputs
  • Vendor-submitted claims that cannot be corroborated publicly
  • Anonymous summary statements presented as proof without a primary source behind them

Review standard

Material corrections can be submitted through the contact page. We update pages when a claim can be verified against a stronger source.

Read the full review methodology and sponsored disclosure.

Evidence used on this page

Accounts Payable Automation Software buyer's guide
The full category overview, evaluation criteria and tool list.
Best Accounts Payable Automation Software
Our ranked shortlist for the category.

What is Accounts Payable Automation Software

Use the Invoice Approval Software list when you already know the broader category and need to narrow vendors by approval workflow design.

It skips the general category questions so you can get to side-by-side comparisons sooner.

What to compare before you talk to vendors

Compare approval workflow design, control quality and escalation logic, how pricing scales, implementation time, and how much admin work the product needs after go-live.

Once you are down to three or four vendors, read their software profiles, pricing pages, and head-to-head comparisons, and check the buyer guides before you book demos.

Tools to evaluate

Open a profile for pricing, implementation notes and alternatives, or compare two tools head to head.

AP automation and global payments platform for multi-entity finance teams, from $99 a month, paying suppliers in 200+ countries.

From $99/monthSubscriptionCloud

AP, AR and spend management for small and midsize businesses, with published per-user plans and sync to QuickBooks, Xero and NetSuite.

$49 per user/monthPer user / monthCloudFree trial

Procure-to-pay platform built around AP invoice processing, with AI coding and approvals and pre-built integrations for 70+ ERPs.

Quote-basedCustom quoteCloud

Spend management for AP, corporate cards, expenses and procurement, now sold by Paylocity as part of Paylocity for Finance.

Quote-basedCustom quoteCloud

Coupa unifies procurement, invoicing, expenses, and payments into a single business spend management platform used by large enterprises.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Basware provides end-to-end AP automation and e-invoicing with a global compliance network spanning over 70 countries.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Medius combines AP automation with embedded payment capabilities, letting finance teams process invoices and pay suppliers from a single platform.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Yooz delivers cloud AP automation with AI-driven invoice capture and over 250 native ERP integrations at a price point accessible to mid-market teams.

Contact vendor for exact pricing and packaging details.Per user / monthCloudFree trial

Esker automates both accounts payable and accounts receivable with AI-powered document processing and a supplier collaboration portal.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

AvidXchange focuses on AP automation and payment execution for mid-market companies, with a payments network that covers checks, ACH, and virtual cards.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

SAP Ariba connects procurement and AP workflows through the world's largest B2B commerce network, serving enterprises with deep SAP ERP integration.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Ramp combines corporate cards, expense management, bill pay, and AP automation in a free platform focused on helping companies spend less.

Contact vendor for exact pricing and packaging details.FreeCloud

MineralTree automates invoice-to-payment workflows for mid-market finance teams with smart payment optimization and ERP integration.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Precoro provides procurement and AP automation with purchase orders, budgeting, and approval workflows at a transparent per-user price.

Contact vendor for exact pricing and packaging details.Per user / monthCloudFree trial

Melio is a free B2B payment platform that lets small businesses pay vendors by bank transfer or card, even when the vendor only accepts checks.

Contact vendor for exact pricing and packaging details.FreeCloud

Centime combines AP and AR automation with cash flow forecasting and working capital solutions in a single platform for mid-market finance teams.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

Kofax (now Tungsten Automation) provides intelligent automation for AP including advanced OCR, document classification, and workflow orchestration.

Contact vendor for exact pricing and packaging details.Custom quoteCloud / On-premise

Rillion (formerly ReadSoft Online) automates AP workflows with AI invoice capture, approval routing, and deep ERP integration for mid-market to enterprise teams.

Contact vendor for exact pricing and packaging details.Custom quoteCloud

ApprovalMax adds multi-step approval workflows to Xero and QuickBooks, giving finance teams control over bills, POs, and expense claims.

Contact vendor for exact pricing and packaging details.Per user / monthCloudFree trial

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