BILL vs Melio (2027): AP & Bill Pay Compared

The short answer: BILL is the AP standard — per-user pricing from $49/user/month (vendor-published as of October 2026; check current pricing), deep approval and payment rails, and the category's most mature accountant partner program. Melio is the SMB challenger — a free-forever Go plan, pay-any-vendor-by-card flexibility, and approval workflows at a lower entry price, with thinner automation depth at the top end. Multi-user AP teams and accountant-led books favor BILL; solo owners and micro teams favor Melio.

These two own the highest-intent bill-pay searches for opposite reasons: BILL because it is the incumbent every accountant knows, Melio because its free tier and card payments win the price-sensitive search. This comparison puts them side by side on what actually differs — fees, approvals, ledger sync, and the partner programs that shape how firms deploy them. Our assessment is editorial research based on vendor documentation and published pricing pages, not hands-on testing; prices change, so verify current rates before committing.

Fees and pricing models#

BILL prices per user per month: Essentials from $49/user/month, with higher tiers above (vendor-published figures as of October 2026; check current pricing). Payment fees are separate from the subscription, and add-ons for AR and spend management price on top. The per-user model is predictable for a fixed AP team but compounds as the team grows.

Melio prices by plan, not seat-heavy: a free-forever Go plan limited to one user with 5 free ACH payments a month, Core from $25/month (or less billed annually) with 20 free ACH and $10/month per additional user, Boost with 50 free ACH, and Unlimited with unlimited free ACH and unlimited users (all vendor-published as of October 2026; check current pricing). Card payments carry a ~2.9% fee on both platforms' card rails — the difference is Melio lets you put any vendor bill on a card, even where the vendor does not accept cards.

The shape:

• 1–2 payers, low volume: Melio Go is free; BILL starts at the $49/user/month floor (published rate; verify).
• Growing team: Melio's Unlimited tier removes both seat fees and ACH fees; BILL's per-user pricing keeps scaling with headcount.
• Card-heavy cash-flow management: Melio's pay-by-card on any bill is the differentiator — priced at ~2.9% (vendor-published fee; check current terms).

Approvals and team controls#

Melio's approval workflows arrive on Core: per-vendor, per-amount, and gradual multi-step approvals, with roles (Viewer, Approver, Owner, Admin, Contributor, Accountant) on paid plans. W-9 collection and 1099 automation — including a sync with Tax1099 for e-filing — come built into the paid tiers.

BILL's approval engine is deeper: multi-role hierarchies, invoice capture at scale, and payment authorizations that hold up in larger AP operations. It is the platform firms standardize on when approval complexity, not price, is the binding constraint.

Small teams feel little difference. The fork is at scale: per-amount and per-vendor approval routing covers most small-business needs on Melio Core, while BILL earns its keep on layered hierarchies and volume.

Ledger sync: QuickBooks, Xero, and beyond#

Both integrate with QuickBooks Online and Xero — with different floors:

• BILL syncs two-way with QBO and Xero from the Team plan up; the entry Essentials plan integrates via manual CSV import/export (vendor-published plan details as of October 2026). On synced plans, payment status flows back to the ledger.
• Melio gates its unlimited QBO/Xero sync to Core and above; the free Go plan caps syncs. Higher Melio tiers reach QuickBooks Desktop (Boost) and NetSuite (Unlimited), which matters for mid-market and multi-entity shops.

If the GL is QuickBooks Online — as it is for most SMBs — both cover it. The sync question only becomes a differentiator on Desktop or NetSuite, where Melio's higher tiers win.

Accountant partner programs#

BILL runs the most mature accountant program in the category: an Accountant Console ($49/month, vendor-published as of October 2026; check current terms) with wholesale client subscription pricing, reseller margins, visibility across client books, and a tiered partner pipeline that pays referrals. It is a real reason firms default to BILL even when a cheaper client-side option exists.

Melio runs an accountant partner program of its own — firm tooling for client AP/AR, onboarding workflows, and partner benefits — plus free tools aimed at firms managing client bill pay. It is younger and thinner than BILL's, but it exists, and for firms standardizing clients on Melio the economics can work; check both vendors' current partner terms before standardizing.

Decision tree#

• Solo owner, low bill volume, watching cost? Melio Go — free, 5 ACH a month (published allowance; check current terms).
• Need to pay a vendor by card who doesn't take cards? Melio's pay-by-card.
• Multi-user AP with layered approvals? BILL.
• Accountant-led practice standardizing clients? BILL's partner program, unless client economics favor Melio.
• QuickBooks Desktop or NetSuite in the stack? Melio Boost or Unlimited.
• Enterprise AP automation with AI coding? Neither — start at our AI AP automation roundup and the Vic.ai vs BILL comparison.

Verdict#

BILL is the AP platform for structure: per-user pricing that buys deep approvals, broad payment rails, and the accountant program that makes it the firm-side default. Melio is the bill-pay platform for entry and flexibility: a genuinely free tier, any-vendor card payments, and approval workflows that arrive years of subscription dollars earlier than BILL's floor. Start Melio when the team is small and price-sensitive; move to BILL when approvals, headcount, or the accountant relationship outgrow it.

For the deeper read on the incumbent, see our BILL review.