Here are the best alternatives to Bill.com for AP automation (shortlist + when each is a good fit). I’ve included one authoritative source for each option so you can quickly check features/pricing and evaluate demos.

Top alternatives

• Tipalti — Best for global payables and high-volume/multi-entity finance teams. Strong supplier onboarding, mass payments, multi-currency rails and tax/compliance controls. (Pricing tiers and global features listed by vendor). (tipalti.com)
• Airbase — Best if you want a combined procure-to-pay solution with corporate cards, expense management and AP in one product (good for scaling startups / mid-market). (airbase.com)
• Stampli — Best for teams that want AI/collaboration-first invoice processing and fast ERP integrations (excellent for complex PO-matching & audit trails). (stampli.com)
• AvidXchange — Best fit for middle-market / enterprise customers that need a robust AP/payments network and vendor services (large US focus). (avidxchange.com)
• Melio — Best low-cost choice for small businesses and QuickBooks users that want simple online bill pay (free/low subscription ACH options; pay-per-transaction for cards/expedited). (meliopayments.com)
• Routable — Good for high-volume US and international payables with developer-friendly APIs, predictable pricing tiers and no per-seat fees (strong for tech-forward finance teams). (routable.com)
• MineralTree — Good for mid-market / enterprise teams that need deep ERP integration, payment optimization and a full invoice-to-pay suite. (mineraltree.com)
• Coupa — Enterprise-grade P2P + AP automation and e‑invoicing with strong global compliance and analytics (best for large organizations with advanced procurement needs). (coupa.com)

How to choose (quick decision guide)

• If you need global mass payouts, multi‑entity support and tax compliance: consider Tipalti. (tipalti.com)
• If you want spend + cards + AP in one platform (better visibility and policy controls): consider Airbase (or Ramp/Brex if you also want bank services). (airbase.com)
• If invoice OCR, fast PO matching and collaboration are your top priorities: consider Stampli. (stampli.com)
• If you’re a small business seeking the lowest-cost/fast-to-adopt option: Melio’s free/low-fee ACH plans are attractive. (meliopayments.com)
• If you process very high invoice/payment volumes and need API-first automation: Routable is worth testing. (routable.com)
• If you’re enterprise with complex procurement, e‑invoicing mandates and global compliance needs: Coupa or MineralTree (depending on procurement depth vs ERP focus) are good fits. (coupa.com)

Pricing & contracting notes (general)

• Pricing models vary: per‑user subscriptions (Bill.com-like), platform subscriptions + per-transaction fees, or custom quote-based enterprise contracts. Check each vendor’s pricing page—Tipalti and Airbase publish plans/tiers; others (MineralTree, Coupa, AvidXchange) commonly use quote-based pricing for enterprise deals. (tipalti.com)
• Small businesses often save with Melio’s free/low-cost ACH options; mid/large orgs usually negotiate custom enterprise pricing that reflects invoice volume, integration scope, and required payment rails. (meliopayments.com)

Practical next steps (fast path to a decision)

1. List your non-negotiables: ERP(s) to sync (NetSuite / Sage Intacct / QuickBooks / Dynamics), monthly invoice volume, payment rails needed (ACH, virtual card, cross‑border), and PO matching requirements.
2. Shortlist 2–3 vendors above that match those must-haves.
3. Request a demo and a pilot (30–90 days) that includes a proof-of-concept with a subset of real invoices and vendors—pay attention to sync accuracy, exception handling, and reconciliation speed.
4. Compare total cost of ownership: subscription + per-transaction fees + onboarding/implementation & support. Negotiate discounts for volume or multi‑year contracts.

If you want, I can:

• create a 1‑page vendor comparison tailored to your ERP, invoice volume, and payment needs (cost + pros/cons), or
• recommend the 2–3 best fits if you tell me your ERP, monthly invoice count, and whether you need international payments.

(If you want the vendor comparison, I can build it now.)