Financial Tools & Quantitative Models

Explore six interactive models for options pricing, portfolio tradeoffs, hedging, and risk—alongside practical tax calculators and planning resources. Use fictional examples to see how changing assumptions changes the results.

Explore the KAS Quant Lab

Six interactive experiments in options, portfolio tradeoffs, and risk. Change the assumptions. Inspect the calculations. See how the model shapes the result.

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Financial Calculators

Tax Withholding Estimator

Check if you're on track with federal tax withholding. Avoid underpayment penalties or overpaying throughout the year.

IRS Estimator

Capital Gains Calculator

Estimate your tax liability on investment gains. Compare short-term vs. long-term rates and plan your selling strategy.

Calculate Gains

Entity Comparison Tool

Compare LLC, S-Corp, C-Corp, and sole proprietor structures. See how each affects self-employment tax and liability.

Compare Entities

Cost Segregation Estimator

Estimate potential tax savings from a cost segregation study on commercial or residential rental property investments.

Request Analysis

Retirement Savings Calculator

Project your retirement savings growth. Factor in contributions, employer match, and tax-advantaged account types.

Calculate Savings

83(b) Election Analyzer

Determine if filing an 83(b) election makes sense for your restricted stock grants. Compare tax outcomes across scenarios.

Request Analysis

Essential Resources

Need Help Navigating Your Options?

These tools provide general estimates. For personalized tax planning and strategic advice tailored to your situation, schedule a consultation.

The Footnote

Where the real numbers live.

Tax strategy, capital markets insight, and planning moves — straight from Kurt's desk, monthly.

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