Unlock Smarter Savings with IdleCashPro

Effortlessly find the optimal Vanguard fund tailored to your unique tax situation.

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How It Works

1. Input Your Tax Details

Provide your state and federal tax rates to personalize your analysis.

2. Compare with Your Bank

Add your current bank's APY to see how it stacks up against top funds.

3. Discover Best Funds

Get a clear view of the best Vanguard funds based on after-tax yield.

Why Choose IdleCashPro?

Personalized Recommendations

Our tool tailors fund suggestions based on your specific tax situation, ensuring you see the true after-tax returns.

Effortless Comparison

Quickly compare funds with your existing bank accounts to identify potential for higher yield.

Save Time & Money

Eliminate manual calculations and make informed decisions faster, helping you maximize your investment returns.

Secure & Private

Your financial data is handled with utmost care and security. Your preferences are saved for future convenience.

Ready to Optimize Your Savings?

Start finding the best funds today and put your money to work smarter.

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Frequently Asked Questions

Most savers leave cash in whatever fund or sweep account they picked years ago or in bank accounts with below-market yields, even though yields—and the tax rules that affect those yields—change every few weeks. IdleCashPro continuously recalculates the after‑tax return of dozens of top‑tier money‑market and Treasury‑style funds and alerts you when switching funds would net you more, after taxes and any fees.

Because nothing else matters. If today’s optimal fund for your federal/state tax bracket is still the best tomorrow, we should stay out of your inbox. We only write when our algorithm flags a fund whose projected after‑tax yield beats your current one by at least 0.10 percentage points (or the custom threshold you set).