Dave Cox

MultiW2 - You have multiple employers. Your tax tools don't.

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Your second W-2 started in March. By October you're over the $23,500 401k deferral limit across both plans, your federal withholding is short by $6,000, and neither employer can see the other to fix it. MultiW2 is the first tax tool built for people with 2+ W-2 jobs — it runs the combined federal math, catches excess deferrals before the corrective-distribution deadline, and hands you the exact W-4 values to enter at each job. Built by someone who's actually lived this.

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Dave Cox
Maker
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Hey Product Hunt 👋 I’m excited (and honestly a bit nervous) to share something I built to solve a very real problem I kept running into: MultiW2 — a tax + benefits optimization tool for people working multiple W2 jobs. The Problem If you’re overemployed or juggling multiple W2 roles, the system isn’t built for you. * You overpay (or underpay) taxes because each employer assumes they’re your only job * You lose money on benefits (duplicate insurance, missed HSA/FSA optimization, etc.) * You don’t have a clear view of your true net income across jobs * And tax season becomes… chaos I’ve personally seen swings of thousands of dollars just from misconfigured withholdings. The Solution MultiW2 helps you make smarter decisions across all your W2 jobs in one place: * 🧮 Tax withholding optimization across multiple employers * 💰 Net income clarity — what you’re *actually* taking home * 🏥 Benefits coordination (avoid duplication, maximize value) * 📊 Scenario modeling — “What happens if I add/remove a job?” The goal is simple: Stop leaving money on the table. Why I Built This There’s a growing number of people quietly working multiple jobs, but almost no tooling designed for them. Everything today assumes: You have one employer That assumption breaks fast. MultiW2 is built specifically for this edge case — which is becoming less of an edge case every year. What I’d Love From You * Feedback on the concept * What features you’d want next * Any edge cases I haven’t considered If you’re managing multiple W2s (or thinking about it), I’d especially love your input. Thanks for checking it out 🙏