According to the pension plan documents, if the Accrued Benefit is $5,000 or less then they will automatically distribute a lump sum. If they mean $5,000 or less payable for the year in total then the OP should receive a distribution. With 5 vested years @ 60 /month per year, he's only at $3,600. That being said, I'm not sure if that's how they determine that. Contacting the pension plan board would be your best option to find out.