Quick answer: Our top pick is BILL (Bill.com), followed by Zoho Books and Melio. Entry prices start near $45/mo. All 5 are compared below on price, strengths and the key trade-off of each, so you can match one to your needs.
Choosing the right tool here comes down to fit, not hype. This guide rounds up the 5 tools we'd actually recommend for this job, with what each does best, what it costs, and who should pick it.
Rankings here reward real-world fit over feature counts: how each tool performs on the exact job above, what it costs, and how quickly a new user gets value. Prices reflect public plans at the time of writing.
Free core platform; Plus ~$15/user/mo; revenue from interchange and add-ons.
Startups
The picks, ranked
1. BILL (Bill.com) Accounts Payable
Automates accounts payable and receivable with approval workflows and deep sync to QuickBooks, Xero, NetSuite and Sage Intacct. Picked here for how cleanly it handles ap/ar automation.
Why it's on this list: Automates the full AP/AR cycle with deep two-way ERP sync, popular with mid-market finance teams. Built for mid-market finance teams automating AP/AR with QuickBooks, Xero, NetSuite or Sage Intacct.
Standout features:
Invoice capture-to-payment workflow with approval routing
Multiple payment rails (ACH, check, card, international wires)
Affordable accounting deeply integrated with the wider Zoho suite (CRM, Inventory, Payroll); strong automation and value. It stands out for zoho suite users without a heavy setup cost.
Why it's on this list: Affordable accounting that becomes a powerhouse when paired with the rest of the Zoho suite. Made for value-seeking SMBs and existing Zoho users wanting tight suite integration.
Standout features:
Multi-currency, inventory, purchase/sales orders on higher tiers
Client portal and automated payment reminders
Standout strength: Strong value with a genuinely usable free plan.
Worth knowing: Extra users available as an add-on at ~$3/user/mo.
Pricing: Free tier for tiny businesses; paid from ~$20/mo up to ~$275/mo (Ultimate).
Simple B2B bill pay letting SMBs pay vendors by bank transfer or card while vendors receive checks or ACH; free core payments. Best suited to teams that care most about smb bill pay.
Why it's on this list: Simple B2B bill pay that lets SMBs pay by card while vendors still get checks or ACH. Aimed squarely at uS SMBs handling vendor bill pay, plus accountant referral partners.
Standout features:
Faster check delivery and instant payment options
Two-way accounting sync
Standout strength: Pay vendors by card even when they only accept checks/ACH.
Worth knowing: Supports international payments in USD and foreign currencies.
Pricing: Free ACH bank transfers; ~2.9% card fee and small fees for expedited/check options.
European-strong spend management combining corporate cards, expenses and accounts payable with multi-entity support. It stands out for multi-entity finance without a heavy setup cost.
Why it's on this list: European-strong spend management unifying cards, AP and procurement with multi-entity control. Aimed squarely at multi-entity European companies wanting corporate cards plus AP in one platform.
Standout features:
Expense management, AP/invoice management and receipt capture
Approval workflows and budgets
Standout strength: Unifies cards, AP, budgets and procurement.
Worth knowing: Visa cards usable across 32+ countries in 7 currencies; credit cards available for UK and US entities.
Pricing: Custom quotes; typically a platform fee plus per-card/per-entity pricing.
Free corporate cards plus spend management, expense automation and bill pay with aggressive cashback and savings insights. Best suited to teams that care most about startups.
Why it's on this list: Free corporate cards plus real-time spend controls and aggressive expense automation. Made for startups and growing companies wanting free cards and tight spend control.
Standout features:
Free unlimited corporate cards (virtual and physical) with no per-card fee
Real-time spend controls and per-card limits before transactions clear
Standout strength: Proactive spend controls that block unauthorized purchases.
Worth knowing: Cashback ranges roughly 0%-1.5%, varying by customer.
Pricing: Free core platform; Plus ~$15/user/mo; revenue from interchange and add-ons.
Don't over-think the ranking: the gap between adjacent picks is small. Decide what you can't compromise on — price, a specific strength, or learning curve — and let that pick for you. Free tiers and trials mean a 30-minute hands-on test beats another hour of reading.
FAQ
What is the best option in this list?
For most people, BILL (Bill.com) is the strongest all-round pick in this guide, but the right choice depends on your budget and exact workflow.
Are there free options?
Yes — Zoho Books offers a free plan or tier, so you can validate fit before paying. Check each entry's pricing line above.
How were these tools chosen?
Each pick is judged on fit for the specific job in this guide — its real strengths, pricing and who it suits — using features and facts drawn from independent reviews and the vendors' own documentation, cited in Sources below.
How often is this guide updated?
We revisit pricing and rankings regularly as vendors change plans and ship features.
Sources
The features, strengths and facts cited for each pick above are drawn from these independent reviews and vendor pages: