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Get paid fast with APX integrated into your practice management software

APX, Abacus Payment Exchange, makes billing a breeze for you and your clients. Fully integrated into AbacusLaw, Amicus Attorney, Amicus Cloud, and OfficeTools, APX allows you to process credit card payments and ACH transactions securely from within your practice management software.

Ease and speed
Unlike other payment solutions, we use a single platform to process your accounts and bill clients. This means you’ll get paid as quickly as your bank allows.

Transparent pricing
We keep things simple with a 3% fixed rate, no hidden fees, and no long-term contracts.

Peace of mind
We understand the responsibility that comes with handling client funds. To ensure trust account balances stay accurate, our 3% flat fee is only from an operating account.


Instantly access the infographic that walks through 5 ways automated payment processing systems help transform billing and invoicing processes.

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See how APX payment processing stacks up:

Plan and Pricing




QuickBooks Payments

Payment Types
All Cards - APX
Visa, Mastercard, AMEX - Square
Visa, Mastercard, AMEX - PayPal
All Cards - QuickBooks Payments
Account Types
Trust & Operating Accounts - APX
Operating only - Square
Operating only - PayPal
Operating only - QuickBooks Payments
Rate (per transaction)
3.0% Fixed - APX
2.75% to 3.75% + $0.15 - Square
2.9% + $0.30 - PayPal
Up to 3.4% + $0.25 - QuickBooks Payments
Additional Processing Fees
None - APX
None - Square
Up to 0.8% - PayPal
None - QuickBooks Payments
Processing Time
1-2 Business Days - APX
Up to 2 Business Days - Square
Up to 2 Business Days - PayPal
2-3 Days - QuickBooks Payments
QuickBooks Payments
PCI Compliant
QuickBooks Payments
Integrated with AbacusNext software
via optional QuickBooks integrations - QuickBooks Payments
Plan and Pricing




QuickBooks Payments

Payment processing built from the ground-up for practice management


Flat Fixed Rate per transaction

< 2 days

Processing Time

0, None

No Additional Processing Fees

Stay ethically sound

We understand ethical obligation that comes with handling client funds. The 3% flat fee of APX is only deducted from an operating account to ensure trust account balances stay accurate.

Online account access

Manage and review transactions, configure your account, view statements, and download reports through our password-protected portal. Feel safe knowing that your client payment data has PCI-compliant 256-bit encryption.

Security and compliance

Your customers can be confident that their data is secure. We are fully in compliance with industry standards like the Payment Card Industry Data Security Standard (PCI DSS).


Accept payments online and start invoicing with APX PayNow

APX allows you to accept credit card, e-check, and ACH payments online through our secure portal and get paid nearly instantaneously. Our payment solution is designed to save you time and money – because getting paid should be the easy part.

Activate APX inside your practice management software today.