Stampli Pricing 2026: AP Automation Cost Per Invoice

Quick Answer

Stampli is quote-only in 2026. AP-only deployments run $500-$800/mo; full suite $2,000+/mo. Mid-market contracts run $30K-$100K/year. ERP connector fees $2K-$10K, Stampli Pay 1-3% transaction fees. Month-to-month available — unusual for the category.

Last verified: Sep 16, 2026.

At a glance

• AP-only: $500-$800/mo
• Full suite (Payments + Procurement + Vendor Mgmt): $2,000+/mo
• Mid-market contracts: $30,000-$100,000/year
• ERP connector fees: $2,000-$10,000
• Stampli Pay transaction fees: 1-3%
• Invoice overage fees: 5-10% of license
• Terms: Month-to-month available (unusual in category)

How Stampli prices — and what makes it unusual

Stampli is fully quote-only, with no published plan tiers or self-serve pricing in 2026. Cost is set by three drivers: the number of invoices processed each month, the users licensed, and the modules activated. Independent estimates put AP-only usage with basic features at roughly $500 to $800 per month, rising past $2,000 per month once Payments, Procurement, and Vendor Management modules are added (autopayables, 2026).

What makes Stampli unusual in this category is the month-to-month terms with no mandatory annual contract — most AP automation vendors require annual commitments. Month-to-month lowers commitment risk but does not address the lack of a free trial or self-serve signup. You still go through a sales quote and often a demo before you see a real number for your configuration.

What the modules cost separately

The baseline $500-$800/mo AP-only quote is only the start. The full-suite quote looks completely different once you turn on the add-on modules:

• AP-only: AI-powered invoice processing, collaborative approval workflows, payment processing, vendor management, accounting integrations, mobile app. Reported $500-$800/mo.
• Payments module (Stampli Direct Pay): ACH, wire, check execution from the Stampli interface. 1-3% transaction fee depending on payment type. Adds to license cost.
• Procurement module: Purchase orders, vendor onboarding, spend policies. Adds to license cost.
• Vendor Management module: Vendor portal, W-9 collection, vendor performance tracking. Adds to license cost.
• Stampli Credit Card: Virtual cards for vendor payments; interchange revenue funds the program.

For a mid-market team processing 1,000-5,000 invoices per month, the full-suite monthly cost lands in the $2,500-$5,000 range. For enterprise volumes (5,000+ invoices per month), costs climb past $5,000/mo with custom pricing (autopayables, 2026; procurementaiagents.com, 2026).

The hidden costs that surprise buyers

Beyond the listed price, Stampli has at least 3 documented hidden costs that can significantly increase total cost of ownership.

1. ERP connector fees: $2,000-$10,000 per ERP integration depending on the system. Common systems like QuickBooks and NetSuite are typically on the higher end. Negotiate the connector fee as part of the base package rather than as an add-on.
2. Invoice overage fees: 5-10% of license costs. Stampli creates pricing from your average invoice count to get invoice credits; overage fees (typically tied to the breakdown cost of the invoice) apply when you exceed the credits.
3. Stampli Pay transaction fees: 1-3% of payment volume depending on type (ACH, wire, check). Clarify the fee schedule before committing and try to negotiate the rates if you process many payments.

Total cost of ownership for a mid-size AP team replacement can reach $30,000/year including implementation, training, and admin. For a 15-user team at 500 invoices/month with Stampli Direct Pay and corporate cards, mid-market contracts commonly land at $30,000-$60,000/year (costbench, 2026).

Who should and shouldn't use Stampli

Stampli is recommended for teams processing 300 or more invoices per month. Below that volume, you sit under Stampli's target range and may pay for capacity you do not use. Higher-volume teams may also qualify for volume discounts.

For companies with complex approval workflows across multiple departments, multi-entity consolidation needs, and AP automation depth beyond Ramp's bill pay layer, Stampli is the right tier. For SMBs at under 300 invoices/month with simple AP needs, Bill.com or Melio is the cheaper starting point with similar QuickBooks Online and Xero integrations (autopayables, 2026).

Stampli is also the right choice for companies that need month-to-month terms without annual lock-in. This is unusual in the category — Bill.com, Tipalti, and most other AP vendors require annual commitments. Stampli's month-to-month flexibility comes at a premium relative to locked-in annual pricing but offers real optionality.

Stampli vs Bill.com: positioning

Stampli and Bill.com occupy adjacent but distinct positions in the AP automation market.

Bill.com is per-seat plus per-transaction with published pricing ($49-$89/user/mo) and a free Spend & Expense product. Bill.com is the right choice for SMBs at any invoice volume with simple AP needs and direct QuickBooks/Xero integration. Bill.com is sales-led above the Team tier but has self-serve signup below.

Stampli is quote-only with no per-seat fees but with invoice-volume-driven pricing and per-transaction fees on Stampli Pay. Stampli is the right choice for mid-market teams at 300+ invoices/month with deeper procurement or vendor management needs, and for companies that need month-to-month terms. Stampli is sales-led at all tiers.

For pure AP automation with simple needs: Bill.com is cheaper to start ($49/user/mo on Essentials) and self-serve. For mid-market AP automation with procurement and vendor management: Stampli's quote typically lands in the $30K-$100K/year range, comparable to Bill.com Corporate at $89/user/mo times 15 users = $16,020/year plus transaction fees. The difference is procurement and vendor management depth, not raw AP automation cost.

What enterprise buyers should do next

Three actions for organizations evaluating Stampli in 2026.

1. Get a quote tied to your volume. Stampli's quote depends on invoice volume, user count, and modules. Ask for a written quote tied to a specific volume and 3-year term so you have leverage to negotiate.
2. Negotiate the connector fee. The $2K-$10K ERP connector fee is the most negotiable line item. Bundle it into the base package for common ERPs (QuickBooks, NetSuite, Sage Intacct).
3. Pressure-test the invoice overage structure. Build headroom for growth into the initial credit allocation. Overage fees of 5-10% of license cost on growth can materially exceed the savings on the per-invoice base rate.

What to watch next

Three near-term datapoints. First, any expansion of the Stampli Card product — the interchange revenue funds much of the platform's discount economics. Second, the AI invoice processing roadmap — Stampli has invested heavily in AI-driven invoice capture, and the pricing model for those features may move from per-invoice to outcome-based in 2027. Third, the competitive positioning vs Tipalti — both vendors target mid-market AP, but Tipalti leans global while Stampli leans US-domestic; the gap narrows as both expand into each other's territory.