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Is Abacus Wealth Partners a Fiduciary? What Its Own Form CRS Says (2026)

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Updated September 28, 2026. Quick answer: Yes, on every account. Abacus Wealth Partners is registered with the SEC only as an investment adviser (it is not a broker-dealer), so the Investment Advisers Act of 1940 requires it to act as your fiduciary. Its own Form CRS states: “When we act as your investment adviser, we have to act in your best interest and not put our interest ahead of yours.”

How it’s registered

From Form CRS, Customer Relationship Summary, Abacus Wealth Partners (March 2026): “Abacus Wealth Partners is registered with the Securities and Exchange Commission (SEC) as an investment advisor.”

The standard of conduct, in its own words

“When we act as your investment adviser, we have to act in your best interest and not put our interest ahead of yours.”

On commissions: “We are fee-only financial planners. This means we cannot accept any fees or compensation based on product sales.”

Fiduciary status by capacity

CapacityRegistrationStandard you’re owedCan earn commissionsSource
As your investment adviserSEC-registered investment adviserFiduciary duty (Investment Advisers Act of 1940)No (asset-based advisory fee: $5,000 a year, 1.00% on a $500,000 account)Form CRS, Customer Relationship Summary, Abacus Wealth Partners, March 2026

What this means for what you pay

Fiduciary status is one input, not the whole picture. Abacus Wealth Partners discloses a published fee that runs $5,000 a year on a $500,000 account; see the full dollar breakdown from Abacus Wealth Partners’ own fee disclosure before deciding whether the standard of conduct here changes your answer.

If the answer above changes your mind about staying, see what it costs to leave Abacus Wealth Partners, or read the general mechanics of switching financial advisors.

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Sources

Methodology. This page was built September 28, 2026, quoting directly from Abacus Wealth Partners’ own current Form CRS, with the source linked above; any distinction we could not independently confirm this session is named as an honest gap rather than presented as verified. Nothing here is personalized financial, tax, legal, or investment advice, and it is not a substitute for reading the firm’s own Form CRS. See our Editorial Policy, Corrections, Affiliate Disclosure, and Disclaimer.

How does this compare? See how 127 advisory firms are registered, from each firm’s own SEC record.