Living with terminal illness

Preparing your partner to manage finances independently

If you manage the household finances, one of the most valuable things you can do right now is bring your partner into the picture. This guide walks through what to share, how to approach it, and who to introduce them to.

Reviewed by Pierre Legrand, founder of 18December
Published 12 June 2026
General information only. This guide is not medical, legal, or financial advice and does not create a professional relationship. Laws and medical standards vary by state and territory. Always seek advice from a qualified professional for your specific circumstances.

If you've always been the one who manages the money in your household, your partner may have little idea of what comes in, what goes out, what you own, or who handles things professionally. That's not a failing on anyone's part. It's just how many households work.

Changing that now is one of the most practical and caring things you can do.

This isn't a morbid exercise. It's a knowledge transfer. The goal is to leave your partner informed and supported, not overwhelmed and lost.


Where do I start the conversation?

Before you get into the details, have a single conversation about the big picture. Tell your partner:

  • What you earn or receive (salary, pension, investment income, rental income)
  • What the main expenses are (mortgage or rent, utilities, insurance, subscriptions)
  • Whether there are any debts (mortgage balance, credit cards, personal loans, car finance)
  • Whether there are any investments (shares, managed funds, property beyond the family home)
  • Where the important documents are kept

This conversation doesn't need to happen in one sitting. Many couples find it easier to come back to it across a few weeks. What matters is that it happens.


What should the financial inventory cover?

After the overview, work through the specifics together. Aim to document the following:

Bank accounts List every account: the bank, the account number, and what it's used for. Include accounts your partner may not know exist (savings accounts, offset accounts, business accounts).

Income sources Write down everything that comes in regularly: salary or wages, government payments, pension income, dividends, rental income. Note where each payment comes from and when it arrives.

Regular expenses Go through bank statements together and identify every regular outgoing. Don't forget annual payments like insurance premiums or council rates. Your partner may have no idea how much things cost.

Debts List every debt: the lender, the current balance, the monthly repayment, and the interest rate. For the mortgage, note whether it's in joint names or sole names, and who to contact at the bank.

Investments List any shares, managed funds, or investment properties. Note where they're held (a brokerage account, a fund manager, a property manager) and how to access them.

Superannuation Make sure your partner knows where your superannuation is held, how much is in it, and who you have nominated as beneficiary. The ATO's myGov service (ato.gov.au) shows all superannuation accounts linked to a tax file number, which can help confirm nothing has been overlooked. This is often the largest single asset and the most overlooked.

Important documents Tell your partner where to find: your will, your enduring powers of attorney, insurance policies, property titles, vehicle registration documents, tax returns, and any trust documents. If they're in a filing cabinet, show them. If they're stored digitally, make sure your partner knows how to access them.


Who should I introduce my partner to?

This is one of the most valuable things you can do. A name on a piece of paper is one thing. An actual introduction is another.

If you use a financial planner, accountant, or mortgage broker, arrange for your partner to meet them while you're still able to make that introduction. These professionals will be able to continue supporting your partner after you're gone, but only if your partner knows who they are and feels comfortable calling them.

Call your bank and arrange a conversation where you can introduce your partner to a banker who handles your accounts. Ask what your partner will need to do to manage the accounts in your absence.

If you use a solicitor for estate planning, make sure your partner has their details and knows what documents are held.


What if my partner has little financial experience?

Some partners have had very little involvement in household finances. If that's the case, start with the basics and build from there.

Work through a simple monthly budget together: what comes in, what goes out, what's left. Show your partner how to read a bank statement. Walk them through how to log in to online banking.

The goal isn't to turn your partner into a financial expert. It's to make them comfortable enough to ask the right questions of the right people.

Your financial planner or accountant can play a key role here. Ask them explicitly to support your partner as a first-time independent financial decision-maker after you're gone. Good advisers understand this situation and will adapt accordingly.


How do I approach this without it feeling overwhelming?

These conversations can feel hard to start. You may worry about distressing your partner, or about what the conversation signals.

Most partners, once the conversation begins, feel relief rather than distress. Being included, rather than protected from information, tends to feel better. Uncertainty is often harder to bear than knowing.

Framing helps. This isn't a conversation about dying. It's a conversation about making sure your partner is looked after. That's an act of care, not a concession to circumstances.


How do I keep a record of what we have covered?

Once you've worked through this together, write it down. A simple document listing accounts, contacts, debts, and document locations is invaluable. Update it if anything changes.

Consider whether the document should be kept physically (in a home safe, or with your solicitor) or digitally (in a secure location your partner can access).

The document doesn't need to be formal. It just needs to be findable.


What are the next steps?

  • Schedule time to have the overview conversation
  • Work through the financial inventory together, section by section
  • Contact your financial planner, accountant, and bank to arrange introductions
  • Write down the key details and make sure your partner knows where to find the document
  • Review your superannuation beneficiary nomination to confirm it reflects your current wishes

Platform tools

  • Your checklistEvery task across all five stages of the journey, gathered in one place so nothing is forgotten.
  • Document vaultStore the will, power of attorney, advance care directive, and other important documents securely in your account. Available to members.

Was this guide helpful?

Pierre Legrand
Founder, 18December

Pierre started 18December after his partner Mark was given a terminal diagnosis, when they mapped out everything that needed to happen at the kitchen table. He reviews the guides to keep them honest, plain, and genuinely useful. About 18December

Published 12 June 2026

Read the latest version of this guide at www.18december.com.au/guides/preparing-partner-to-manage-finances

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