What S&P 500 return rate does this calculator use?

This calculator models the historical long-term annualized nominal return of the S&P 500 index (10.5% CAGR over the past several decades) compounded annually.

Guaranteed 20% Savings vs Your Current CPA

CPA Switch & Wealth Compounding Calculator

Q: How does the 20% savings guarantee work?

Simply share your prior year CPA invoice or current recurring fee. JANSS CPA guarantees to match your full scope of service and beat their price by at least 20%.

Q: Is switching CPAs difficult?

No. We handle the entire onboarding transition. You simply provide your prior year tax returns and accounting access, and we handle the rest with zero downtime.

See how much you immediately save by switching to JANSS CPA—and how compounding your savings in the S&P 500 grows your wealth over the next 10 years.

What are you currently paying your CPA per year?

JANSS CPA Price (80%)

$2,400

Guaranteed price match: 120% of the service for 80% of the cost.

Your Annual Cash Savings

$600

Direct 20% cash savings kept in your pocket every single year.

10-Yr S&P 500 Compounded Wealth
$10,367
What your 20% savings turns into over 10 years at historical 10.5% S&P 500 return.

10-Year Compounding Projection (Annual Contributions @ 10.5% CAGR)

Timeline	Cumulative CPA Savings	S&P 500 Compounded Value	Investment Growth / Earnings

Ready to Claim Your 20% Savings Guarantee?

Share your current CPA invoice or recent return. We'll match your exact scope, beat their price by 20%, and give you Big 4-trained expertise with 48-hour turnarounds.

Book Free 15-Min Consultation

Or text Brent directly at 713-714-7153

Frequently Asked Questions

How does the 20% savings guarantee work?

Bring us your current CPA's annual invoice or monthly retainer. We will deliver the same (or superior) scope of service and beat their rate by at least 20%. If we cannot save you 20%, we refund the difference.

What return rate is used for the S&P 500 calculation?

We use a 10.5% annualized return rate, reflecting the historical nominal Compound Annual Growth Rate (CAGR) of the S&P 500 index over multi-decade historical horizons with reinvested dividends.

Is switching CPAs difficult?

Not at all. We make switching effortless. We'll request prior year tax returns (Form 1040, 1120-S, or 1065) and accounting files (QuickBooks/Xero), review your structure for missed deductions, and take over seamlessly.

What services are included in the switch?

Whether you need individual tax filing, S-Corp/partnership returns, monthly bookkeeping, or proactive year-round tax planning, all services are included in our transparent flat pricing.