MultiW2
You have multiple employers. Your tax tools don't.
MultiW2 launched on April 9, 2026 with 2 votes, #4,561 of 21,248 launches that month.
What it does
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.
We're live on Product Hunt. Use PH50OFFLAUNCH for 50% off annual Pro — exact tax calculations, W-4 optimization, and scenario modeling for multi-W2 professionals.
W2 plus consulting plus a side project? MultiW2 models all three and shows the withholding gap your employers each miss. Annual Pro, half price, 72 hours only. Four things other calculators miss when you work more than one job. W2 plus consulting plus a side project? We model all three against real 2026 IRS brackets. Each employer withholds as if they're your only job. We surface the real gap before the IRS does. Max 401(k), HSA, and mega-backdoor Roth across employers without tripping IRS limits. Social Security overpayment detection, Medicare Additional Tax, W-4 tuning per job. Take the discount, or start free — the first calculation costs nothing either way. Prefer to browse first? Free…from multiw2.com
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Source: Product Hunt launch ↗
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