Loan Origination System (LOS)

The LOS is one of the two foundational systems in any mortgage operation, alongside the CRM. Where the CRM manages the relationship before, during, and after the loan, the LOS manages the loan itself between application and funding.

What the LOS handles

• Application intake — the borrower’s 1003 application is created in the LOS with all required disclosures generated and tracked
• Underwriting workflow — conditions, document requests, AUS submissions (DU, LP), credit pulls, decisioning
• Compliance documentation — Loan Estimate, Closing Disclosure, tolerance tracking, change-of-circumstance handling
• Investor delivery — once the loan funds, the LOS handles transfer to the investor or secondary market

Common LOS platforms in 2026

ICE Mortgage Technology’s Encompass dominates the lender market. Calyx Software’s Point and Path are common in the broker channel. BytePro, LendingPad, and a handful of newer cloud-native options round out the market.

LOS vs. CRM

An LOS is regulated software handling compliance disclosures, audit trails, and investor delivery. A CRM is the system that touches the borrower 95% of the time during the relationship lifecycle. Most mortgage operations need both, integrated. BNTouch ships native integrations with Encompass, Calyx, BytePro, and LendingPad so loan data flows automatically between LOS and CRM without manual reentry.