Online calculator
Margin and markup calculator
Compare margin and markup or find a selling price for a target margin.
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Eight-lesson masterclass
Taxes for people who run the business
Understand business tax classification, income, deductions, owner pay, estimates, hiring and filing with full explanations and worked examples.
Online working pages
Tax preparation working pages
Map obligations, reconcile records, plan payments and prepare the filing handoff. Includes a temporary checklist.
Online calendar
The business calendar
Selected U.S. federal dates and suggested reviews for cash, customers, costs and renewals, September 2026–January 2027.
Explanation · Leadership
What should a first manager decide without the owner?
Agree on what the manager can decide, the limits, what to record, when to ask for help and how you will review the results.
Editorial · Leadership
A business can outgrow the way its founder makes decisions
Handing over tasks still leaves you with the decisions unless people know what they can approve, the limits and the information they need.
Explanation · Marketing
What does one new customer actually cost?
Count the costs and new customers over the same period, then compare the cost per customer with what their purchases leave after direct costs.
Working tool · Marketing
Customer interview record
Record what happened the last time a customer faced the problem, what they tried, what it cost, and what commitment came next.
Explanation · Marketing
Customers try the business. What brings them back?
Follow what happens after the first purchase, compare customers fairly and find the obstacle before creating another reward or offer.
Current briefing · Money
Consumer prices rose 0.4% in August. Your costs may have moved differently.
The national consumer index is context. Pricing decisions still require the business’s own invoices, usage, payroll, and margins.