Supported Decision Making vs Power of Attorney

The Fundamental Difference

A supported decision-making agreement keeps the person as the decision-maker. A power of attorney delegates decision-making authority to someone else.

This isn't a technical distinction — it changes who has legal authority to act. Under a supported decision-making agreement (codified in Alabama through the Colby Act), the person with a disability retains full legal capacity. Their supporters help gather information, evaluate options, and communicate decisions, but the person themselves remains the one who decides. Supporters cannot sign documents, authorize transactions, or make binding commitments on the person's behalf.

Under a power of attorney, the agent can independently sign documents, access accounts, and make binding decisions within the powers the document grants. Medical treatment authority requires the separate advance directive's healthcare proxy. The person who signed the POA (the principal) can still act on their own, but the agent has parallel authority to act for them.

For families of young adults with disabilities, this distinction determines how much autonomy the person keeps and how much authority transfers to parents or caregivers.

When Supported Decision Making Works Best

SDM agreements are the right fit when the person can participate meaningfully in decisions with help. They may need someone to explain medical information in simpler terms, help them compare apartment options, or accompany them to meetings with school administrators — but they can form and express preferences once they understand the situation.

Practical examples:

• A young adult with an intellectual disability who can choose between treatment options when a supporter explains the pros and cons in plain language
• A person with autism who needs help processing paperwork and bureaucratic steps but has clear preferences about where they want to live and work
• A young adult with a learning disability who needs support reading contracts but can evaluate options when the terms are explained

The Colby Act in Alabama (effective August 2023) formalizes this arrangement with legal force. Third parties — banks, hospitals, schools — are statutorily encouraged to recognize valid supported decision-making agreements, and those who honor them in good faith are protected from liability.

When a Power of Attorney Is Necessary

POA becomes the right tool when there are situations requiring someone to act independently on the person's behalf — situations where waiting for the person's direct participation isn't practical or the person needs someone who can sign binding documents.

The Alabama Uniform Power of Attorney Act (Title 26, Chapter 1A) covers financial powers. The Advance Directive for Health Care (Title 22, Chapter 8A) covers medical decisions through a healthcare proxy.

Common scenarios requiring a POA:

• Managing a bank account or investment portfolio where the institution needs a signature from an authorized agent
• Signing a lease or mortgage document
• Authorizing a financial transaction during an emergency when the person cannot communicate
• Filing tax returns or managing government benefit applications

The critical limitation: the person must have the capacity to sign the power of attorney in the first place. They need to understand, at a basic level, that they are granting someone else authority to act on their behalf. If they lack that capacity, a POA cannot be executed — and the family will need to pursue guardianship or conservatorship through the probate court.

Using Both Together

These tools aren't mutually exclusive. A young adult might have a Colby Act supported decision-making agreement that covers day-to-day decisions across healthcare, housing, education, and employment, while also having a durable financial power of attorney that gives a parent authority to manage their bank account and tax filings.

This combination preserves autonomy across most of life while providing the specific agent authority needed for financial transactions that require a signature. The SDM agreement handles the domains where the person can participate with support. The POA handles the domains where someone needs independent signing authority.

In Alabama, the SDM agreement requires notarization. The financial POA also requires notarization. The healthcare proxy (advance directive) requires two witnesses instead. Families can often execute all three documents in a single meeting arranged to include a notary and two qualifying witnesses, at age 18 — before the full transfer of rights at Alabama's age of majority of 19.

Neither Tool Covers Everything

Both SDM agreements and powers of attorney have gaps:

Social Security benefits: Neither a supported decision-making agreement nor a power of attorney is recognized by the Social Security Administration for managing SSI or SSDI benefits. SSA requires its own representative payee designation, obtained through a separate administrative application.

Educational decisions after age 19: For students still receiving special education services under IDEA, neither tool directly addresses IEP decision-making. Alabama provides an administrative educational representative appointment process through the school district — a separate mechanism that doesn't require court involvement.

Situations involving active exploitation or danger: If the young adult is being exploited or is unable to participate in decisions even with support, and voluntary tools have failed, guardianship through the probate court may be the only option.

The Alabama Adult Guardianship & Alternatives Guide maps all of these tools — SDM, POA, representative payee, educational representative, and guardianship — against a six-domain framework to help families identify the right combination for their specific situation.

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