TFCU is regulated under the authority of the National Credit Union Administration (NCUA).

Southern Bell (later renamed BellSouth and now AT&T) organized the credit union in March 1935 with over $800 in deposits and over $400 in loans by the end of the second day.

The first board of directors' meeting authorized the purchase of a cash box and rubber stamps, not to cost more than $1.20 and $1.60 respectively.

In 1957, assets grew to $2.5 million and Tropical Telco moved into a new building on Giralda Avenue in Coral Gables and formed a Credit Union Booster Club.

During this period, the office was closed one day so employees could calculate and pay 5½% dividend to the share accounts.

Interstate banking was permitted by the State of Florida, which increased competition among all financial institutions for members' deposits and loans.

The state charter provided further expansion opportunities to include defined communities, as well as continued SEG growth.

[citation needed] Membership in Tropical Financial Credit Union is available to those who work or live in the following counties: or in the following ZIP codes: 33455 - Hobe Sound 33458 - Jupiter 33469 - Tequesta 33477 - Jupiter/ Tequesta (East) 33478 - Jupiter/Tequesta (West) Over 200 companies in these counties also offer membership as a benefit to their employees.

Tropical Financial offers banking services such as free and high-yield checking accounts, high interest savings accounts, low rates on loans, retirement planning, debt consolidation and refinancing, small business services and free financial seminars.