Skip to navigationSkip to main contentSkip to right columnMichael WilliamsSat, July 4, 2026 at 12:54 AM GMT+2 5 min readQuick ReadUnion plumbers stack three retirement vehicles, namely a lifetime pension, an employer-funded annuity, and a 401(k), while non-union bosses fund retirement alone from variable income.A Solo 401(k) allows non-union shop owners to contribute up to $72,000 in 2026, rivaling union benefits when treated as a fixed cost.Union plumbers who switch locals before vesting can forfeit all pension credits, as reciprocity agreements between UA locals are not automatic.Many financial professionals are salespeople paid on what they push, not whether you end up wealthier. A fiduciary is the opposite. The SEC legally requires them to put your interests first. Advisor.com's free matching tool pairs you with vetted fiduciaries from major national firms, all in under three minutes. See who you match with today.Here is the uncomfortable truth about the plumbing trade: the journeyman turning wrenches in a hospital basement often walks into retirement with a bigger, more predictable check than the master plumber who owns the truck. The reason is the pension structure that comes with union membership, specifically the multiemployer defined-benefit plans run by the United Association (UA) and its local affiliates. Meanwhile, most non-union shop owners, including the boss, are on their own with a self-directed account and a 15.3% self-employment tax bill.Wirestock / iStock via Getty ImagesHere is how that advantage actually works, and the moves plumbers on both sides of the W-2/1099 line should be making.The union plumber's stacked planUA local plumbers typically participate in a Taft-Hartley multiemployer pension, funded by employer contributions negotiated into the hourly package (not deducted from take-home pay). The benefit is a defined-benefit formula: hours worked multiplied by a benefit accrual rate set by the trustees, paid as a monthly annuity for life. Vesting is usually five years of credited service, though this varies by local and you should verify with your fund office.What makes the plumber's package unusually rich is the stack. Many UA locals layer three vehicles on top of each other:Are You Ready To Retire, Or Years Behind?Most Americans suspect they're behind on retirement and never find out.