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KnowYourNut. Know your nut. Run your business.

About KnowYourNut

KnowYourNut is a financial operating system for small business owners. Free Planning covers calculators and preparation. Paid tiers add reusable planning outputs or connected accounting, bank, and CSV data.

What We Do

We give small business owners one place to answer every financial question they face, from "can I afford to hire?" to "what should I charge?" to "will my cash flow hold through January?"

  • 30+ free calculators covering break-even, profit margins, hiring costs, quarterly taxes, loan payments, and business valuation
  • A shared business profile (Living Memory) that saves supported planning inputs for reuse in relevant tools
  • Operating System connections for QuickBooks, Plaid, and CSV data in supported dashboards and features
  • An AI Financial Advisor that reads your data and tells you what to pay attention to next

Who It's For

KnowYourNut is for small business owners who make their own financial decisions. Not accountants, not enterprises, not people with a CFO on speed dial. If you are the one deciding what to charge, who to hire, and whether the numbers work, this is for you.

  • Contractors figuring out job pricing and whether to bring on a crew member
  • Restaurant owners tracking margins and forecasting slow-season cash flow
  • Freelancers setting rates and estimating quarterly tax payments
  • Retailers deciding whether a second location pencils out
  • Real estate investors running DSCR, cap rate, and loan comparisons
  • Service businesses modeling what it actually costs to add an employee

Why We Built It

KnowYourNut was built by Tim Sorrentino, a U.S. Army veteran and small business owner who spent years helping other owners get their numbers right. He kept watching the same thing happen: an owner would punch revenue into one calculator, expenses into another, and rent into a third, then try to stitch the answers together. Nothing connected. Nothing remembered what they entered last week.

Tim built the tool he wished he had when running his own businesses and sitting across the table from clients. A single place where the supported planning inputs can be reused in relevant tools, and where the workflow reflects how a small business owner thinks about money.

The Living Memory

Living Memory is the shared business profile for signed-in owners. It saves supported planning inputs so relevant calculators and planning tools can reuse them.

No account is needed to use the calculators. Create a free account and Living Memory saves supported inputs across sessions. Operating System accounts can connect QuickBooks, Plaid, or CSV data for supported dashboards and features.

Frequently Asked Questions

What is KnowYourNut?

KnowYourNut is a financial operating system for small business owners. Free calculators cover break-even, cash flow, profit margins, hiring costs, taxes, and more. Signed-in owners can save supported manual inputs in Living Memory, while the paid Operating System adds connected accounting, bank, and CSV data.

Who is KnowYourNut for?

KnowYourNut is built for small business owners who run their own finances: contractors, restaurant owners, freelancers, retailers, real estate investors, and service businesses. It is not built for accountants or enterprises. The tools use plain English and produce answers that help owners make decisions, not just numbers that need interpretation.

Is KnowYourNut free?

All calculators are free with no account required. Free Planning is $0 forever. Planning Pro is $149/year. The connected Operating System is $39.99/month or $383.90/year. Know Your Number loan packages are separate purchases priced $149 to $599 one time, not lifetime platform access.

How is KnowYourNut different from QuickBooks or NerdWallet?

QuickBooks is accounting software that records what happened. NerdWallet's calculators are standalone tools for a general audience. KnowYourNut helps you figure out what to do next: whether you can afford to hire, whether your pricing covers costs, whether your cash flow will hold through a slow month. The calculators connect to each other and can connect to your QuickBooks data.

What calculators does KnowYourNut include?

KnowYourNut includes 30+ calculators across financial planning, hiring, taxes, pricing, real estate, and more. Key tools include Break-Even Calculator, Cash Flow Forecast, Employee True Cost Calculator, Quarterly Tax Estimator, Salary vs Distribution Calculator, Profit Margin Calculator, SBA Loan Calculator, Business Valuation Calculator, and DSCR Calculator.

Connect With Us

Ready to know your numbers?

Start with free calculators. Upgrade to Pro when you need AI insights, PDF exports, and scenario comparisons.