Salary Negotiation Simulator
Gauge your odds before you ask, based on your raise target, performance rating, and tenure
Enter your current salary, your target salary, your most recent performance rating, and your years of service, and this tool estimates the raise you're asking for, your likelihood of landing it, and how much your monthly take-home pay would actually go up after taxes. It's built for anyone heading into a salary conversation who wants a reality check on whether their number is realistic. All calculations run in your browser — your salary details are never sent to a server.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter your current salary and the salary you want to negotiate for, in KRW
- Select your most recent performance rating (S through C) and enter your total years of service
- Check the requested raise percentage and estimated success probability shown at the top
- Use the projected increase in monthly take-home pay to fine-tune your negotiation target
FAQ
- How is the success probability calculated?
- It starts from your performance rating as a baseline, lowers the odds as the raise you're asking for grows, and adds a small bump for longer tenure. It's a rough estimate and does not guarantee any real-world outcome.
- How is the take-home increase calculated?
- It assumes roughly a 16% deduction rate for Korea's four major insurances and income tax, then shows the approximate difference in monthly take-home pay.
- Should I go into a negotiation relying on this result alone?
- No — it's a simple estimate for reference only. What matters far more in a real negotiation is documented proof of your results plus market salary data for your industry.