Paid a freelancer or contractor this year? You may owe them — and the IRS — a 1099. What the form is, who gets one, and the $600 rule.

Working from home? You may be able to deduct a home office — if you meet the IRS's exclusive-use test. Who qualifies and how it's calculated.

Profit margin is the share of revenue you keep after costs: profit ÷ revenue × 100. How to calculate gross and net margin and use it to price smarter.

A good invoice tells a client what they owe, for what, and how to pay. The must-have fields, clear payment terms, and simple systems to get paid faster.

You don't strictly need accounting software, but you need a reliable way to track income and expenses. What it does, when a spreadsheet is enough, and when to upgrade.

Revenue, profit, and cash flow answer three different questions — and confusing them sinks businesses. Here's each one in plain English.