Keel Business Library — Invoicing, Expenses, Mileage & Tax Guides for the Self-Employed

661 guides · US · Canada · Australia · New Zealand

Keel Business Library

Practical answers for people who work for themselves. Learn how to quote work, invoice customers, track expenses, keep records and understand the business rules that apply where you work.

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Start your business

Registration, licences, insurance and the first-week list — the rules that apply where you work.

Show all 50 start your business guides

Price & quote work

Building a number from your own costs, and putting it in front of the customer.

Show all 100 price & quote work guides

Jobs & customers

When the job changes, the estimate was too low, or the customer needs a conversation.

Show all 24 jobs & customers guides

Invoices & getting paid

What goes on the invoice, deposits, payment terms, and what to do when it is late.

Show all 208 invoices & getting paid guides

Receipts & expenses

What you can deduct, what to keep, and how to keep it so it survives an audit.

Show all 40 receipts & expenses guides

Mileage

The rate, the log and what counts as business driving.

Show all 13 mileage guides

Taxes & deductions

What you owe, when it is due, sales tax on your work, and the return itself.

Show all 101 taxes & deductions guides

Records & bookkeeping

How long to keep records, separating money, and handing the year to your accountant.

Show all 15 records & bookkeeping guides

Tools & templates

Estimate and invoice templates by trade, with a free maker that runs in your browser.

Show all 53 tools & templates guides

Compare business apps

Where the alternatives fit, where they do not, and what you give up when you link a bank.

Show all 46 compare business apps guides

Other markets

Guides for the United Kingdom and Ireland. Still maintained, but outside the markets Keel’s guides focus on.

Latest from the blog

New writing on invoicing, tax and the money side of working for yourself, added as it is published. The guides above stay the reference. All blog posts →

From reading about it to doing it.

Keel keeps your invoices, receipts, expenses and mileage on your iPhone. Keel is free to use, with no invoice limit. Keel Lifetime, a one-time $249.99, adds your branding and signature, premium templates and accountant-ready exports. No subscription.