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Vehicle Depreciation Calculator
Estimate potential business vehicle depreciation and explore Section 179, bonus depreciation, GVWR, and business-use considerations.
Business Vehicle Tax Organizer
Organize business vehicle mileage, expenses, purchase information, business-use percentage, loan interest, and other records used for tax preparation.
S-Corp vs. Sole Proprietor Business Decision - Calculator
Wondering whether an S-Corporation election is worth discussing with your CPA? This free calculator compares the estimated self-employment tax a sole proprietor pays with the estimated payroll tax an S-Corp owner pays on a reasonable salary, then subtracts the added costs of payroll processing, payroll filings, and the S-Corp tax return. Enter your expected annual profit and a reasonable owner salary to see an estimated annual difference in under a minute. It is a screening tool, not a recommendation: it will not tell you to elect S-Corp status, and it does not apply any fixed "IRS-approved" salary percentage, because no such percentage exists.
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Business Decision Tools & Tax Calculators
Compare scenarios and organize records with Weidner CPA’s free tools below. Also explore the tax extension balance calculator and 2026 ACA premium tax credit calculator. Each tool explains its inputs and limitations.
Quarterly Estimated Tax Calculator
Estimate federal quarterly tax payments and explore how prior-year tax, withholding and payments affect your planning target.
Employee vs. 1099 Calculator Business Decision - Calculator​
Employee vs. Independent Contractor Cost Calculator:
Compare the estimated annual cost of hiring a W-2 employee with the cost of using an independent contractor. See how payroll taxes, benefits, and other employer costs affect the numbers, while keeping in mind that worker classification depends on the actual working relationship, including the level of control and independence - not simply how the worker is paid.
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Client Guides & QuickBooks Support
How much does monthly bookkeeping cost?
What should I prepare before discussing an S corporation?
When does a business need QuickBooks cleanup?
For a clear chart of accounts, QuickBooks setup or cleanup, explore our CPA-led bookkeeping services below.