Do I Need a Power of Attorney if Everything Is in Joint Names?

01st December 2025

What’s the short answer?

Yes, even if all your finances and assets are jointly owned, you still need a Power of Attorney.
Joint accounts do not give your partner, spouse, or co-owner legal authority to manage your share of decisions if you lose mental capacity. A Lasting Power of Attorney (LPA) is the only way to guarantee continuous access and legal decision-making authority.

Why isn’t joint ownership enough?

Joint ownership allows both people to manage an account only while both have mental capacity.
The moment one person loses capacity, banks often take protective steps, including:

• Freezing the joint account until they see valid legal authority
• Asking for a registered Property & Financial Affairs LPA
• Restricting withdrawals to “necessary living expenses only”

This means the remaining joint owner may not be able to:

• Pay household bills
• Access savings
• Move money between accounts
• Manage investments
• Sell jointly owned property

Without an LPA, financial access and decision-making can become legally restricted at the worst possible time.

Does a joint account legally allow one partner to act on behalf of the other?

No.
A joint account gives shared access, not automatic legal authority.
Banks still need confirmation that decisions are being made lawfully, which is why they ask for a registered LPA when capacity is lost.

What about property owned jointly?

Even with joint tenancy or tenants in common, if one co-owner loses capacity:

• The property cannot be sold
• Remortgaging becomes extremely difficult
• Equity release may be blocked
• Transfers or restructuring become complex

A solicitor or lender will require a Property & Financial Affairs LPA to proceed.
If there is no LPA, the family may need to apply to the Court of Protection. This is a process that can take 6–12 months and cost thousands.

Do I still need a Health & Welfare LPA if everything is in joint names?

Yes. Joint ownership has no impact on health or care decisions.
Without a Health & Welfare LPA, decisions will be made by:

• Doctors
• Social workers
• The local authority

Your partner or family will be consulted, but they will not have final legal authority.
A Health & Welfare LPA ensures the people you choose can make decisions about:

• Medical treatment
• Care home moves
• End-of-life wishes
• Daily routines and personal care

What happens if someone loses capacity with no Power of Attorney?

The only route is a Court of Protection deputyship application, which is:

• Slow (often up to a year)
• Expensive
• Ongoing (annual fees and reporting)
• Stressful for families

A simple, affordable LPA avoids all of this.

Even if everything is in joint names, you still need a Power of Attorney.
Joint ownership alone cannot guarantee uninterrupted access to money or legal authority to make decisions.
A pair of LPAs (Property & Financial Affairs and Health & Welfare) produced using a service like Power of Attorney Online is the only way to ensure seamless support, protection and peace of mind.