H1 Understanding the NAB Portfolio Facility

NAB Portfolio Facility Features and Loan Management

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

The NAB Portfolio Facility is a flexible line of credit home loan designed to consolidate your borrowing needs into a single master limit. Unlike a standard home loan with a fixed repayment schedule, this facility operates as a credit line that you can access and redraw from as needed. It allows you to group up to 18 sub-accounts under one limit, which may include home loans, investment loans, savings accounts, and transaction accounts.

This product is generally aimed at individuals who want to manage multiple borrowing and savings needs within a single financial structure, often packaged with an annual fee. Because it functions as a line of credit, it provides significant flexibility for those who actively manage their cash flow, but it also requires a disciplined approach to debt management, as you are responsible for ensuring interest and fees are covered within your approved limit.

Category Details
Methods NAB Mobile App, Internet Banking, Branch Support
Processing Time Immediate access to credit limit upon approval
Eligibility Existing property owners/borrowers meeting serviceability criteria
Key Requirements Approved master credit limit, property equity, financial discipline

Pro-Tip: Treat your master limit like a budget boundary. Because the facility allows you to draw down credit for various purposes (investment, personal, home), it is easy to inadvertently reduce your buffer. Periodically check your available 'headroom'—the difference between your current balance and your master limit—to ensure you maintain a safety margin for unexpected expenses.

Frequently Asked Questions

Q: What happens if I exceed my master credit limit?
Your master limit is the maximum amount you are approved to borrow across all sub-accounts. If you exceed this limit, the bank may decline further withdrawals, and you may incur over-limit fees or penalty interest rates depending on your contract terms. Always monitor your total outstanding balance in the NAB app. If you frequently reach your limit, you may need to apply for a limit increase, which will require a new serviceability assessment.

Q: How does the interest work across the different sub-accounts?
Each sub-account within your Portfolio Facility can have its own interest rate structure. For example, you might have one sub-account on a fixed rate and another on a variable rate. The bank calculates interest on the daily balance of each sub-account individually. If you are struggling to manage interest costs, review whether you can consolidate high-interest sub-accounts or make extra repayments into your variable-rate portions to save on overall interest.

Official Bank Information

NAB

Support: 13 22 65

SWIFT Code: NATAAU33

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