Montauk Credit Union is offering share certificates with yields that range from 4.10% APY for a 12 and 18-month term to 4.20% APY for a 60-month term. These are also available in an IRA.
According to the credit union's About page, anyone is eligible to join:
MCU has an "open charter" which enables us to extend membership to anyone.
It seems like New York has some favorable credit union laws. This charter is similar to what Melrose Credit Union has. Melrose CU is also in New York, and I've been reporting on its high yield CDs for the last couple of years (my last Melrose CU post).
Montauk Credit Union membership requires a minimum deposit of $25 in the share savings account.
The office is located in New York, NY. The credit union is federally insured by the NCUA (Certificate # 63231). It has $68.6 million in assets and 3,045 members.