Engine Rebuild Cost Calculator

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S-Corp Tax Savings Calculator

Estimate how much you could save by switching from a Sole Proprietorship to an S-Corporation.

Your Estimated Savings
Sole Proprietor SE Tax:
S-Corp Payroll Tax (FICA):
Admin & State Fees:
Estimated Annual Savings:

How S-Corp Tax Savings Work

When you operate as a Sole Proprietor or a standard LLC, the IRS views all your business profits as personal income subject to Self-Employment (SE) tax. This tax currently sits at 15.3%, covering both the employer and employee portions of Social Security and Medicare.

By electing S-Corp status, you become an employee of your own corporation. You pay yourself a "reasonable salary," and only that salary is subject to FICA taxes (15.3%). The remaining profit is distributed as a dividend, which is not subject to self-employment tax. This is the "S-Corp loophole" that allows business owners to save thousands every year.

The "Reasonable Salary" Rule

The IRS requires S-Corp owners to pay themselves a salary that matches what someone in a similar role would earn at a different company. If your salary is too low, you risk an audit. Generally, business owners aim for a salary that is 40% to 60% of their total business profit, depending on the industry and workload.

Example Calculation

Imagine your business nets $100,000 in profit:

  • As a Sole Proprietor: You pay 15.3% on roughly 92.35% of that $100,000, totaling about $14,130 in SE taxes.
  • As an S-Corp: You pay yourself a $50,000 salary. You only pay the 15.3% tax on that $50,000, which is $7,650.
  • The Result: You save $6,480 in taxes. Even after paying $1,500 for payroll software and filing fees, you are still ahead by nearly $5,000.

When Should You Switch?

Most tax professionals suggest that the "tipping point" for an S-Corp election is when your business consistently nets at least $60,000 to $70,000 in profit. Below this level, the administrative costs of running payroll and filing corporate tax returns (Form 1120-S) often outweigh the tax savings.

function calculateSavings() { var profit = parseFloat(document.getElementById('annualProfit').value) || 0; var salary = parseFloat(document.getElementById('reasonableSalary').value) || 0; var admin = parseFloat(document.getElementById('adminCosts').value) || 0; var statePct = parseFloat(document.getElementById('stateTax').value) || 0; var resultBox = document.getElementById('resultBox'); // 1. Sole Proprietor Calculation // SE tax is 15.3% of 92.35% of net income var solePropSETax = profit * 0.9235 * 0.153; // 2. S-Corp Calculation // FICA tax is 15.3% of the salary var scorpFicaTax = salary * 0.153; // State S-Corp specific taxes (like CA's 1.5% or minimum franchise tax) var stateSpecificTax = (profit * (statePct / 100)); var totalScorpCosts = scorpFicaTax + admin + stateSpecificTax; // 3. Comparison var savings = solePropSETax – totalScorpCosts; // Display results document.getElementById('solePropTax').innerText = '$' + solePropSETax.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('scorpFica').innerText = '$' + scorpFicaTax.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('totalFees').innerText = '$' + (admin + stateSpecificTax).toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('finalSavings').innerText = '$' + savings.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); resultBox.style.display = 'block'; if (savings > 0) { resultBox.className = 'scorp-result-box scorp-result-positive'; document.getElementById('resTitle').innerText = 'Great News! Estimated Savings:'; } else { resultBox.className = 'scorp-result-box scorp-result-negative'; document.getElementById('resTitle').innerText = 'Sole Prop Might Be Better:'; } }

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