If your main problem is time spent processing bills, I’d shortlist Ramp, BILL, and Melio—with the best choice depending mostly on your accounting system and how sophisticated your AP workflow is.
My picks
| Software | Best for | Accounting integrations | AP automation | My take |
|---|
| Ramp | Growing companies wanting AP + spend management | QuickBooks, Xero, NetSuite, Sage Intacct, and many more | Excellent | Best overall |
| BILL | Dedicated AP/AR automation | Strong accounting/ERP ecosystem | Excellent | Best AP-focused option |
| Melio | SMBs wanting simple bill payment | QuickBooks, Xero, NetSuite | Very good | Best for simplicity/value |
| Airbase | More structured finance teams | NetSuite, Sage Intacct, QuickBooks, Xero | Excellent | Best for procure-to-pay controls |
1. Ramp — my default recommendation
If you're trying to eliminate AP busywork rather than merely make payments easier, Ramp is probably where I'd start.
It can pull bills from your accounting system, automate approvals, capture/categorize invoices, handle payments, and sync bills and payment status back to the GL. Its current integrations cover QuickBooks Online/Desktop, Xero, NetSuite, Sage Intacct, Business Central, Acumatica and others.
Its QuickBooks integration, for example, supports bidirectional syncing, three-way matching, bill payments, credits and accounting fields.
Choose Ramp if: you also want corporate cards, expenses, procurement or broader spend management alongside AP.
2. BILL — best if AP itself is the priority
I'd look closely at BILL if you want a purpose-built AP/AR platform rather than a broader spend-management suite. It's particularly compelling for companies with a dedicated accounting team and substantial invoice volume.
3. Melio — best for a smaller/simple operation
Melio is attractive if your workflow is basically receive bill → approve → pay → automatically update QuickBooks/Xero.
Its AP automation includes OCR bill capture, approval workflows, scheduling, ACH/card payments and automatic accounting sync. It currently supports QuickBooks, Xero and NetSuite.
The QuickBooks integration is genuinely two-way: bills, vendors, payments and other details can sync automatically rather than requiring duplicate entry.
4. Airbase — best for more controlled procurement
Airbase becomes interesting if AP is tied closely to purchase requests, approvals, cards and procurement. It supports NetSuite, Sage Intacct, QuickBooks Online/Desktop and Xero, with automated invoice capture and three-way matching for NetSuite.
What I'd choose
- QuickBooks + small/medium business: Melio or Ramp
- QuickBooks + lots of spend/expenses: Ramp
- Xero: Melio or Ramp
- NetSuite: Ramp or Airbase
- Sage Intacct: Ramp or Airbase
- High invoice volume + dedicated AP team: BILL
- Want to consolidate AP + cards + expenses + procurement: Ramp
The biggest thing I'd evaluate isn't the payment method—it's the accounting integration. You want bills, coding, approvals, payments and payment status to flow back to the accounting system automatically. Otherwise you've just moved the manual work to another screen.
If you tell me which accounting software you use (QuickBooks, Xero, NetSuite, Sage, etc.), roughly how many bills you process per month, and your company size, I can narrow this to the best 2 options and compare pricing/features.
It can pull bills from your accounting system, automate approvals, capture/categorize invoices, handle payments, and sync bills and payment status back to the GL. Its current integrations cover QuickBooks Online/Desktop, Xero, NetSuite, Sage Intacct, Business Central, Acumatica and others.
Its QuickBooks integration, for example, supports bidirectional syncing, three-way matching, bill payments, credits and accounting fields.
Choose Ramp if: you also want corporate cards, expenses, procurement or broader spend management alongside AP.
2. BILL — best if AP itself is the priority
I'd look closely at BILL if you want a purpose-built AP/AR platform rather than a broader spend-management suite. It's particularly compelling for companies with a dedicated accounting team and substantial invoice volume.
3. Melio — best for a smaller/simple operation
Melio is attractive if your workflow is basically receive bill → approve → pay → automatically update QuickBooks/Xero.
Its AP automation includes OCR bill capture, approval workflows, scheduling, ACH/card payments and automatic accounting sync. It currently supports QuickBooks, Xero and NetSuite.
The QuickBooks integration is genuinely two-way: bills, vendors, payments and other details can sync automatically rather than requiring duplicate entry.
4. Airbase — best for more controlled procurement