Free Calculators
Quick estimates for the questions we hear most.
Free calculators for the most common small business and personal finance decisions. Directional only, for a real analysis, ask a CPA.
Looking for hard data instead of inputs? See SMB benchmarks →
S-Corp Savings Calculator
Estimate whether the S-corp election will actually save you money, net of payroll provider cost, extra tax prep, and California's 1.5% S-corp tax.
Use calculatorSelf-Employment Tax Calculator
Estimate Schedule SE tax (Social Security, Medicare, and additional Medicare tax), for sole proprietors, single-member LLCs, and freelancers.
Use calculatorQuarterly Estimated Tax Calculator
Pick the cheaper of the 90%-current-year or prior-year safe harbor and divide into four quarterly payments. For 1099 earners, partners, and S-corp owners.
Use calculatorQBI Deduction Calculator
Estimate the Section 199A pass-through deduction with SSTB phase-out and income thresholds. For LLC, partnership, and S-corp owners.
Use calculator1031 Exchange Calculator
Estimate the federal capital gains, §1250 depreciation recapture, NIIT, and state tax you can defer by exchanging one investment property for another.
Use calculatorCost Segregation Calculator
Estimate first-year tax savings from reclassifying portions of a real-estate purchase into 5-, 15-, and 39-year depreciation classes, with current bonus depreciation applied.
Use calculatorSolo 401(k) vs. SEP-IRA Calculator
Compare maximum contribution limits and tax savings between a Solo 401(k) and a SEP-IRA for self-employed owners with no non-spouse employees.
Use calculatorWorking Capital Calculator
Turn balance sheet figures into working capital, current ratio, and DSO, DPO, and cash conversion cycle estimates, with a plain-language read on what they mean.
Use calculatorLLC or S-Corp? Decision Tool
5-question quiz with a CPA-grade verdict on whether the S-corp election makes sense for your LLC, based on profit, salary defensibility, state tax, and complexity tolerance.
Use calculatorQSBS Qualifier
6-question check on §1202 Qualified Small Business Stock eligibility, up to $10M of capital gain tax-free at the federal level.
Use calculatorReal Estate Professional Status Qualifier
6-question quiz determining §469(c)(7) qualification, letting rental losses offset wages and other non-passive income.
Use calculatorAudit Risk Assessment
7-question check on IRS audit risk for small business owners, owner comp, personal expenses, cash controls, multi-state nexus.
Use calculatorMore calculators coming. Have a request? Tell us.
Bring an estimate to the call and our CPA-led team will work from your actual facts instead of the assumptions baked into a tool.
Frequently Asked
Questions about the calculators
- Are the calculators really free?
- Yes. Every calculator is free to use, with no sign-up and no email required. They exist because we would rather you arrive at a conversation with a directional number in hand than guess. If the estimate raises questions, that is exactly what a partner conversation is for.
- How accurate are the results?
- They are directional estimates, not tax advice. Each calculator uses simplified assumptions, and real outcomes depend on your full facts: entity type, state, income mix, and elections already in place. Use them to decide whether a strategy is worth a serious look, then confirm with a partner before acting.
- Are the calculators updated for current tax law?
- Yes. Calculators are reviewed on the same cadence as the rest of our content, quarterly and after material regulatory changes. Thresholds and limits that are adjusted annually, such as retirement contribution limits and the Social Security wage base, are updated as the IRS publishes new figures.
- Which calculator should I start with?
- Most owners start with the S-Corp Savings Calculator or the LLC or S-Corp decision tool, because entity choice drives so much of the rest. If you are self-employed, the Self-Employment Tax and Quarterly Estimated Tax calculators pair well. Real estate investors usually start with the 1031 Exchange or Cost Segregation calculators.
Keep reading
Schedule K-1
IRS form reporting a partner's, S-corp shareholder's, or trust beneficiary's share of income, deductions, and credits.
GlossaryS-Corporation (S-corp)
A passthrough entity that allows owner-employees to split income between salary (subject to FICA) and distribution (not).
GlossaryQualified Business Income (QBI) Deduction
A 20% deduction on qualified business income from passthrough entities, available to most small business owners.
GlossarySelf-Employment Tax
Combined Social Security + Medicare tax (15.3%) owed by self-employed individuals on net earnings.
GuideS-corp vs. LLC for Small Business Owners
When the S-corp election actually saves money for an LLC owner, and when it costs more in headaches than it pays in taxes.
GuideK-1 Income: What It Is and How to File It
If you're a partner, S-corp shareholder, or LLC member, you'll get a K-1. Here's how to read it and where each number lands on your 1040.