Can You Use Shares As Mortgage Collateral In Australia?

If you’re looking to buy a commercial property, refinance business debt or unlock capital for growth, a lender may ask whether you can “put up” shares as security. It’s a common conversation for founders and small business owners: you have value tied up in your company or a share portfolio, and you want to leverage it to secure a better rate or higher borrowing capacity.

Using shares as collateral can be possible in Australia, but it’s not as simple as handing over a share certificate. The process is legal and widely used, though lenders apply strict rules, and the risk profile is very different depending on whether the shares are in a listed company or your own private company.

In this guide, we break down how share security works for Australian small businesses, what lenders typically require, key documents involved, and the practical risks to manage before you say yes.

What Does “Using Shares As Collateral” Mean For Your Business?

When you use shares as collateral, you grant the lender a security interest over those shares. If the loan isn’t repaid, the lender can enforce its security by selling the shares or transferring them to recover the debt.

For a business loan or commercial mortgage, the security can be over:

• Shares you personally own (e.g. in your own company or a listed company)
• Shares your company owns in another company
• Other assets at the same time (e.g. real property, equipment) as a broader security package

With listed shares, the security is usually a “share mortgage” or “equitable mortgage” supported by a control deed with the broker/custodian. With private company shares, lenders typically use a share charge or pledge, often alongside a broader security package (for example, a General Security Agreement over the company’s assets).

Can Lenders Take Security Over Shares For A Mortgage In Australia?

Yes, Australian lenders can and do take security over shares. However, they’ll assess share collateral differently to real property. Share values can move quickly, there may be restrictions on transfer, and enforcement can be more complex-especially for private companies.

Most lenders will consider share security where:

• The shares are liquid and easy to value (e.g. listed shares) or
• Private company shares can be reliably valued, and the shareholder agreements and constitutions allow enforcement without undue hurdles

Expect your lender to carry out detailed due diligence. If the security is over private company shares, they’ll want to see the company’s constitution, cap table, financials and any contracts that affect transfer rights (for example, drag/tag or pre-emptive rights).

It’s common for lenders to take multiple forms of security for a commercial mortgage. In addition to a share pledge, they may also register a security interest on the Personal Property Securities Register (PPSR). If you’re new to the PPSR, it’s worth understanding what the PPSR is and why it matters for your business.

How Do Share Pledges Work In Private Vs Listed Companies?

Listed (Public) Company Shares

Listed shares are relatively straightforward from a lender’s perspective because:

• Pricing is transparent and updated daily
• Settlement and transfer mechanics are standardised
• Enforcement can be quicker if there’s default

Practically, you’ll sign security documents and a control agreement with the broker/custodian so the lender can “control” the securities (including rights to sell on default). There may be “margining” requirements if market values fall.

Private Company Shares (Including Your Own Company)

Private shares can be pledged, but lenders scrutinise them more heavily. Common issues include:

• Transfer restrictions: Many constitutions or agreements contain pre-emptive rights or board consent requirements that can delay or block enforcement.
• Valuation uncertainty: Without a market price, lenders and borrowers must agree on valuation methodologies.
• Information rights: Lenders often require reporting covenants to monitor value over time.

Before offering private shares as collateral, review your governance documents and contracts. If you have multiple founders, check your Shareholders Agreement and your company’s Company Constitution for any restrictions on pledging or transferring shares, change of control clauses, or rights that might be triggered by an enforcement event.

You should also consider how the shares will be valued at the start and monitored during the term. For private companies, there are different ways to approach valuation-see our overview on valuing shares in a private Australian company for common methods and practical factors.

What Legal Documents Will You Likely Need?

The exact suite of documents depends on the lender and the structure of your deal. For a commercial mortgage or business loan secured by shares, we often see:

• Loan Agreement: Sets out amounts, interest, covenants, events of default and enforcement rights.
• Share Mortgage/Share Charge (Pledge): Grants security over the specified shares, including ancillary rights like dividends and voting (often limited until default).
• Control Deed (for listed shares): Gives the lender control over the securities account held by your broker/custodian.
• General Security Agreement: If the lender wants broader coverage, a General Security Agreement (GSA) can secure “all present and after-acquired property” of the grantor.
• Guarantee and Indemnity: Many lenders require director or parent company guarantees-review the risks in Personal Guarantees in Australia.
• Board/Shareholder Resolutions: To authorise granting the security and (if needed) to amend any transfer restrictions.
• Deed Polls or Ancillary Deeds: For acknowledgements by the company whose shares are pledged, or by other stakeholders, confirming consent to enforcement.

It’s typical for the lender to register their security on the PPSR, and if the company is the grantor, to negotiate priority with any existing secured creditors. Getting the registrations and priority right is essential to avoid disputes down the track.

Key Compliance Steps And Risks To Manage

1) Check Your Governing Documents First

Before you promise shares as collateral, make sure your Shareholders Agreement and Constitution permit it. Look out for pre-emptive rights, compulsory transfer on default, or any “change in control” triggers that could be activated by enforcement. If there’s a conflict, you may need to amend the document or seek written waivers.

2) Understand Transfer Mechanics And Timeframes

If the lender enforces, how do your shares actually change hands? For private companies, enforcement often results in a transfer to the lender or a buyer. It helps to be familiar with the process outlined in our guide on ASIC transfer of shares in private companies, especially where board approval or share certificates are involved.

3) Get The Security Registered Correctly

Incorrect or late PPSR registrations can cost priority against other creditors. Ask the lender to confirm what they will register, when, and for which collateral class. If multiple securities are involved (e.g. a GSA plus a share mortgage), ensure the registrations reflect the structure and collateral accurately.

4) Be Clear On Valuation And “Top-Up” Triggers

Lenders rarely treat shares as a “set and forget” asset. Expect covenants requiring regular financial information and, in some cases, “top-up” rights if the share value falls. If your business is sensitive to cash calls, negotiate sensible thresholds and notice periods.

5) Map The Tax And Accounting Impacts

Share pledges can come with tax and accounting implications-dividend redirection, fair value measurements, and possible implications for related-party arrangements. While Sprintlaw focuses on legal matters, it’s wise to coordinate with your accountant as part of the transaction.

6) Compare With Other Security Options

Lenders may offer alternatives that better suit your risk appetite. For example, some businesses consider a bank guarantee structure in addition to-or instead of-pledging shares. If that’s on the table, weigh it against a share pledge using commercial and legal criteria (including fees, expiry conditions, and enforcement mechanics).

How Do Lenders Assess Private Company Shares As Collateral?

For private company shares, a lender’s due diligence usually extends beyond the share certificate to the business behind it. Expect requests for:

• Current and historical financials, cash flow forecasts and key customer contracts
• Details of classes of shares and preferences-see the main differences in different classes of shares
• Copies of the Constitution, Shareholders Agreement, and any vesting or option arrangements
• Cap table and any existing security interests affecting the company or its shares
• Board minutes/resolutions authorising the transaction

If your company has multiple investors or option holders, alignment at the document level saves time and reduces negotiation friction with the lender. Where needed, side letters or deed polls can clarify rights on enforcement.

What Happens If You Default?

Default triggers are set out in your Loan Agreement. Common triggers include missed payments, breaches of covenants, insolvency events, or adverse changes without lender consent.

On default, the lender can enforce its security. For shares, the lender might:

• Appoint a receiver to the shares (or to the company if a GSA is in place)
• Require transfer of the pledged shares into its name or to a third-party buyer
• Exercise voting rights (if permitted) to facilitate a sale or restructure

Enforcement should follow the procedure in the security documents and applicable law. The more clearly your documents anticipate the steps (authorities, consents, waivers), the smoother enforcement will be-both for you and the lender.

Alternatives To A Share Pledge If The Bank Says No

Not every lender will accept shares as primary security, particularly where the shares are illiquid or hard to value. Alternatives often explored by small businesses include:

• Property Security: A first or second mortgage over commercial or residential property, depending on equity.
• General Security Over Business Assets: A GSA over plant, equipment, receivables, IP or inventory can be viable if the asset base is strong.
• Guarantees: Personal, director or parent company guarantees-be mindful of the risks detailed under personal guarantees.
• Bank Guarantees: Sometimes used instead of cash security for leases or counterparties; operationally different to collateral over shares, but worth comparing in the right context.
• Convertible Instruments: In growth financing, you may raise funds via equity/convertible notes rather than secured debt (different risk and dilution dynamics).

The right mix depends on your balance sheet, risk appetite and the lender’s credit policy. It’s normal to negotiate a package-don’t assume share security must be all or nothing.

Step-By-Step: Preparing To Offer Shares As Collateral

1) Map Your Cap Table And Documents

Confirm who owns what, which classes exist, vesting schedules and any existing encumbrances. Fix inconsistencies before you approach lenders.

2) Review And, If Needed, Amend Restrictions

Identify any pre-emptive rights, board consent hurdles or change-of-control triggers in your Shareholders Agreement and Constitution. If required, align stakeholders on targeted amendments or waivers before promises are made to lenders.

3) Clarify Valuation And Reporting

Propose a pragmatic valuation approach and sensible reporting frequency. For private companies, aligning on methodology early prevents delays and re-trades late in the process.

4) Anticipate Enforcement Mechanics

Work through a practical enforcement pathway. If enforcement requires board or shareholder action, consider pre-signed transfers, escrow arrangements or enforcement-specific resolutions that comply with your company documents and the Corporations Act.

5) Finalise The Security Package

Confirm whether the lender needs a GSA, a share pledge, guarantees or additional asset security. Make sure the PPSR registrations reflect the agreed collateral and priority.

6) Execute Correctly

Security documents are often deeds and may require specific execution formalities. If directors are signing in different locations or digitally, ensure the execution block and method are compliant under Australian law.

Common Questions From Founders

Can I Pledge Only Some Of My Shares?

Usually, yes-security can be over a specified parcel. However, lenders may insist on a minimum coverage amount or require top-ups if values move.

What If My Shareholders Agreement Blocks Transfers?

Many agreements allow enforcement transfers as an exception, or they can be amended by consent. If not, you may need waivers or a targeted amendment before proceeding. It’s better to fix this upfront than negotiate under time pressure with a lender’s conditions precedent hanging over your deal.

Will I Lose Voting Rights?

Until default, you typically retain voting rights. On default, enforcement provisions may allow the lender to exercise voting rights to facilitate a sale. Review the security document carefully to understand when control shifts.

What If I Sell The Business During The Loan?

You’ll need lender consent to sell or restructure while the shares are encumbered. A clean sale often requires discharge of the lender’s security and, if applicable, a standard share transfer process similar to what’s covered in ASIC transfer of shares.

Essential Contracts And Policies To Have In Place

Using shares as collateral is one part of capital strategy. Lenders also look at how well-governed and contract-ready your business is. In parallel, it’s worth reviewing whether you have:

• Shareholders Agreement: Clear rules for decision-making, founder exits and transfers reduce risk in a financing process-see Shareholders Agreement.
• Company Constitution: Up-to-date rules that align with current ownership and lender requirements-see Company Constitution.
• Customer and Supplier Contracts: Clean, assignable contracts help lenders get comfortable with cash flows and enforcement scenarios.
• Employment Contracts and Policies: Solid contracts and policies reduce operational risk and demonstrate compliance culture.
• IP Ownership And Licences: Make sure the company-not individuals-owns critical IP and that licences are documented.
• Security Agreements: Where a lender requires a broader security package, a well-drafted General Security Agreement complements the share pledge.

Practical Tips To Keep The Process Smooth

• Start the document review early. Align your internal agreements with lender expectations before you sign a term sheet.
• Be realistic about valuation. For private companies, agree on a clear methodology and stick to it.
• Negotiate covenants you can live with. Reporting, negative pledge, and top-up requirements should be achievable in day-to-day operations.
• Plan for downside scenarios. Document an enforcement pathway that is workable and compliant-don’t leave it to chance.
• Coordinate advisors. Legal, accounting and (if relevant) tax advice should be aligned so there are no last-minute surprises.

Key Takeaways

• Australian lenders can accept shares as collateral for business loans and commercial mortgages, but they assess listed versus private shares very differently.
• For private company shares, review your Constitution and Shareholders Agreement for transfer restrictions and enforcement pathways before you offer shares as security.
• Expect a security package that may include a share pledge, a General Security Agreement, guarantees, and PPSR registrations-each document should be carefully drafted and executed.
• Agree early on valuation methods and any “top-up” triggers, especially where market movements or business performance could affect security coverage.
• Keep your governance house in order-clean cap tables, clear contracts and compliant policies make lender due diligence faster and reduce deal risk.
• If share security isn’t the right fit, consider alternatives like property security, bank guarantees or different funding instruments.

If you’d like a consultation about using shares as collateral for a mortgage in Australia-or help reviewing your Shareholders Agreement, Constitution or security documents-reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.