Finance category
Mortgage, loan, investing, tax, and money calculators.
Self-Employed Quarterly Tax Calculator
IRS estimated quarterly payments avoid underpayment penalty for self-employed.
Quarterly payment
$9,212
Annual tax liability
$36,847
SE tax
$14,130
How the math works
Liability = federal + state + SE tax. Quarterly = annual / 4.
$120k − $20k = $100k net. SE tax $14,130. Tax: $24k fed + $5k state = $43k / 4 = $10,750 qtr.
How to Use
- Enter annual self-employment income.
- Enter deductible expenses.
- Enter federal marginal rate %.
- Enter state rate %.
- Enter se tax rate %.
- Read quarterly payment.
Frequently Asked Questions
Quarterly estimated tax requirements?
Required if expected to owe $1,000+ in tax for year. Due dates: April 15, June 15, Sept 15, Jan 15 (next year). Safe harbor: pay 100% of prior year tax (110% if AGI > $150k) or 90% of current year. SE tax: 15.3% (12.4% SS up to wage base + 2.9% Medicare unlimited + 0.9% Additional Medicare > $200k single). Form 1040-ES. State quarterlies vary (most match federal). Underpayment penalty rate ~7–8% of underpayment amount (2024).
How is this tax impact computed?
Tax outcomes depend on filing status, income bracket, depreciation schedule, basis adjustments, AMT exposure, and state conformity. Real estate tax planning typically involves cost segregation, 1031 exchanges, opportunity zone, depreciation recapture, passive activity rules, and entity structure (LLC vs partnership vs S-corp). This calculator provides directional analysis — final position requires CPA review.
State conformity?
States vary on conformity to federal tax code: California, NY, MA decouple selectively. Bonus depreciation: most states reduce or eliminate. QBI: most states don't conform. Section 1031: federal-only deferral, some states require state-level recapture. Property tax cap: state-specific (CA Prop 13, MI Headlee, FL SOH). Multi-state property requires apportionment analysis.
When to prioritize this strategy?
Tax strategies have setup cost, complexity, and audit risk. Cost segregation: $5–15k study, materially helps high-basis investors. 1031: 45/180 day deadlines, identification rules, qualified intermediary fees. Opportunity Zone: long hold required. Stack strategies: don't double-count benefits. CPA + tax attorney coordination essential for $1M+ strategies.
Related Calculators
More Finance Calculators
Browse all finance →AI Cost Calculator
Compare token costs across OpenAI, Anthropic, and Google AI models. Calculate monthly API spending for GPT-4o, Claude, Gemini, and more.
Tip Calculator
Calculate the perfect tip and split the bill between friends. Choose preset percentages or enter a custom tip amount.
Bill Splitter Calculator
Split an uneven restaurant bill by item, divide tax and tip proportionally, and see exactly who owes whom.
Discount Calculator
Calculate sale price, discount amount, stacked discounts, sales tax, and total savings for any markdown.
Gas Mileage Calculator
Calculate MPG or km/L, estimate trip fuel cost, and compare annual fuel expenses between two vehicles.
Sales Tax Calculator
Add sales tax to a price, reverse-calculate the pre-tax amount from a total, and estimate tax for multiple items on one receipt.
Keep exploring
Next steps in Finance
Previous calculator
Self Storage Truck Rental Revenue Calculator
Self storage truck rental revenue — incremental revenue from U-Haul or Penske truck dealer agreement.
Next calculator
Self-Employment Tax Calculator
Calculate self-employment tax (SECA) including Social Security, Medicare, and the additional Medicare surtax.