Best Accounts Payable software

Nickel Core is free and includes unlimited ACH transfers, eliminating per-transaction costs for basic money movement

Bill pay is part of the free plan rather than being reserved for a paid tier

The product is built for US businesses, so companies with operations outside the US or significant cross-border payment needs are not the target market

Advanced workflows sit behind paid plans, meaning the free tier covers basic payments but not deeper automation

Breadth under one vendor: AP/AR automation, customer communications management, mail and shipping tools, and Parcel Pending smart lockers, so companies can consolidate multiple finance and operations vendors into one relationship

Documented customer results back the pitch — Radisson Blu cut AP processing time by 50%, Mission Construction processes invoices in under 5 minutes and eliminated duplicate payments, and Santander rebuilt corporate onboarding with Quadient Inspire

No published pricing, free trial, or self-serve signup — every AP automation plan uses a Request Pricing call to action, so you can't compare costs against competitors without going through a sales conversation, and no refund policy is posted

Product scope can be overkill for small teams: Quadient spans postage meters, folder inserters, smart lockers, and CCM platforms, so a buyer needing only simple AP software may face unnecessary complexity and hardware upkeep

Two-way sync with QuickBooks Online and Xero on every plan (plus QuickBooks Desktop on Grow and Oracle NetSuite as a Pro add-on) moves suppliers, bills, invoices, and payments between Plooto and your books automatically, cutting duplicate data entry and reconciliation errors

Custom approval rules route each payment to the right approvers with notifications, and secure multi-user access means your team never shares bank credentials — firms can also review approvals across every client from a single dashboard

The pricing page lists per-transaction fees but not base subscription rates, and no free plan, free trial, or refund policy is published — you need to contact sales or confirm terms before budgeting

The Go plan is very restrictive: only 5 domestic/ACH transactions per billing cycle, one bank account, and a single approver with a $5,000 per-transaction cap, so most businesses will need Grow almost immediately

A free plan covers core bill pay, so the smallest businesses can digitize payments without a subscription commitment

Merchant account setup takes under two minutes, versus days of underwriting for traditional payment processing

Core bill pay is free, but many capabilities sit behind paid tiers, and per-seat and usage-based charges can make monthly costs unpredictable

At high payment volumes, pricing scales steeply — the top of Melio's published plan range reaches into the tens of thousands of dollars per month