Free Resources
Tax Calculators & Tools
Free calculators for NJ business owners and self-employed individuals. No signup, no email required. Built by a NJ-licensed CPA.
The American Tax Atlas
Explore tax data for every ZIP code in America. Compare states, calculate relocation savings, check audit risk, and find the best entity structure. 7 interactive tools powered by IRS data covering 27,588 ZIP codes.
Explore the Tax AtlasLLC vs. S-Corp Calculator
Full side-by-side comparison of LLC vs. S-Corp taxes including federal income tax, NJ GIT, SE/payroll tax, QBI deduction, BAIT election savings.
Compare LLC vs. S-CorpNJ Exit Tax Calculator
Calculate your NJ exit tax withholding, actual tax owed, estimated refund, and net proceeds at closing.
Calculate Exit TaxW-2 vs. 1099 Cost Calculator
See the true cost of a W-2 employee vs. 1099 contractor including all NJ payroll taxes (SUI, SDI, FLI), benefits, workers comp.
Compare W-2 vs. 1099S-Corp Savings Calculator
Quick S-Corp savings estimate. Compares sole prop SE taxes vs. S-Corp payroll taxes with NJ compliance costs. For a deeper analysis, use the LLC vs.
Calculate S-Corp SavingsSE Tax Calculator
Estimate your 2026 federal self-employment tax (Social Security + Medicare) and NJ Gross Income Tax based on your net self-employment income.
Calculate SE TaxEstimated Tax Calculator
Calculate your 2026 federal and NJ quarterly estimated tax payments. Includes the safe harbor rule so you know the minimum to pay to avoid penalties.
Calculate Quarterly TaxesCrypto Tax Estimator
Estimate your crypto tax liability across federal and NJ, including capital gains rates by holding period and the Additional Medicare Tax on high earners.
Estimate Crypto TaxesDeFi Protocol Tax Map
The first protocol-level crypto tax treatment database. 175+ protocols, every transaction type analyzed with IRS citations, confidence levels, and Greg's recommended approach.
Explore the Tax MapBooks ER — Bookkeeping Diagnostic
CPA-grade bookkeeping diagnostic tool suite. 7 tools: diagnostic wizard, tax deadline calendar, IRS notice decoder, self-audit walkthrough, chart of accounts templates, document checklist, and fix-or-hire guide. No uploads, no login.
Diagnose Your BooksEstimates Are a Starting Point
These calculators give you a directional number, not a tax return. Every calculation involves assumptions about income, deductions, credits, and state-specific rules that vary by situation. Use these tools to understand what you might owe and whether a planning strategy like S-Corp election makes sense to explore further.
When you are ready to work with the actual numbers, Monaco CPA provides personalized tax planning and preparation.
Start Your Tax Return