Free Resources
Tax Calculators & Tools
Free calculators for NJ business owners and self-employed individuals. No signup, no email required. Authored by Gregory Monaco, CPA, licensed in New Jersey (#20CC04711400).
Quick Calculators
Calculators and Self-Checks
A focused set of calculators and a bookkeeping self-check for common 2026 New Jersey and federal questions. Each runs in your browser with no signup.
S-Corp Tax Comparison Calculator
Screening comparison of sole-proprietor SE tax and modeled S-Corp owner/employer FICA with selected published NJ filing amounts shown separately. It does not calculate net savings, project a full return, price outside providers, select an entity, or provide formation services.
Compare S-Corp TaxesSE Tax Calculator
Estimate selected 2026 federal self-employment-tax components for one self-employed person, including Social Security, Medicare, and Additional Medicare coordination. It does not calculate New Jersey tax, QBI, or a complete return.
Calculate SE TaxBookkeeping Self-Check
Twelve questions about how a business keeps its records, sorted into areas that look current, need attention or are behind, with a practical next step for each. It does not review books, price work or determine a tax result.
Run the Self-Check1099-DA Basis-Gap Calculator
Compare the modeled tax difference under entered assumptions between a zero-basis scenario and the supported basis entered. This arithmetic screen does not predict a filed-return result.
Calculate the GapNJ Income Tax Calculator
Illustrate selected 2026 federal and NJ tax components with optional itemized and self-employed business deductions; this is not a complete liability or payment instruction.
Calculate Estimated TaxEstimates Are a Starting Point
These tools give you a directional result, not a tax return. Every calculation involves assumptions about income, deductions, credits, and state-specific rules that vary by situation. Use these tools to review modeled tax amounts and differences. The S-Corp comparisons do not select an entity or provide formation or election setup.
A separately accepted written scope may include full-return tax planning or preparation; a calculator result and contact-form submission do not create an engagement.
New clients: use the contact form
Get Started