Since back-office software is ubiquitous and here to stay, merchants need payment services to work hand in glove with their accounting software.

Payment gateway USA ePay provides its merchants just such an interface: a software program for retailers from Fi-Soft, a developer of accounting and integration software.

Fi-Soft's Merchant Edition can integrate third-party merchant accounts with Intuit Inc.'s QuickBooks accounting software.

The real-time, integrated credit card processing software is said to install within QuickBooks in minutes, without requiring additional hardware or software.

Merchant Edition adds a menu item within QuickBooks or the POS system to activate the program. Once activated, the merchant can process credit cards in real time, reducing reconciliation problems.