Guides
Practical Business Guides
Straightforward explanations for everyday business tasks — receipts, sales tax, estimates, invoices, and job profit.
How to Make a Receipt for a Customer
What belongs on a customer receipt, how it differs from an invoice, and a worked example you can copy.
Read the guide →How to Calculate Sales Tax and Remove Tax From a Price
The formulas for adding sales tax to a price and removing tax from a tax-included total, with worked examples.
Read the guide →Estimate vs Invoice: What Contractors Should Send and When
The practical difference between an estimate, an invoice, and a receipt, and the order contractors send them in.
Read the guide →How to Calculate Job Profit and Profit Margin
How to work out whether a job actually made money, and the difference between profit margin and markup.
Read the guide →