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Practical guides on invoicing, getting paid, and running a small business. Written by the people who build the invoicing app.

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Painting Contractor Software: What Actually Matters for Invoicing
Industry guides

Painting contractor software is invoicing and estimating software built around how painting jobs actually get priced: square footage or per-room measurements that turn directly into the quote, materials and labor split cleanly with paint…

Read guide 8 min read

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Invoicing basics

What to include, terms, and getting invoices out the door.

104 guides

Freelancing

Rates, contracts, and getting clients to pay on time.

83 guides

Small business

The day-to-day of running a small operation, sorted.

35 guides

Running a business

Margins, cash flow, and the numbers that keep you afloat.

101 guides

Productivity

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Startups & growth

Burn rate, runway, and building something that lasts.

31 guides

Marketing

Find clients and win the work, without a big budget.

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Industry guides

Invoicing playbooks for specific trades and professions.

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The getting-paid path

1 How to invoice as a freelancer: a simple step-by-step guideYou did the work. Now you have to ask for the money,… 3 min 2 What to put on an invoice: a complete checklistAn invoice does two jobs: it tells the client exactly what they… 3 min 3 How to get clients to pay on timeLate payment is the quiet killer of small businesses. The work is… 3 min 4 How much should you charge? A freelance rate guideSetting your rate is one of the hardest parts of going freelance.… 3 min 5 How to work out your burn rate and runwayBurn rate and runway are two of the most important numbers a… 3 min

Latest articles

Industry guides
Handyman Software: What Actually Matters for Invoicing
Handyman software is invoicing and job software built around how handyman work actually gets billed: several small jobs…
8 min readAug 16Read
Industry guides
Construction Billing Software: What Actually Matters for Invoicing
Construction billing software is invoicing software built around how construction payments actually work: progress billing tied to the…
8 min readAug 15Read
Industry guides
Electrician Invoicing Software: What Actually Matters
Electrician invoicing software that handles billing well separates the service call fee from the repair cost, prices flat-rate…
8 min readAug 14Read
Invoicing basics
What to put on an invoice: a complete checklist
Invoicing basics
What to put on an invoice: a complete checklist
An invoice does two jobs: it tells the client exactly what they owe and why, and it gives…
3 min readAug 13Read
Running a business
What is a good profit margin for a small business?
Running a business
What is a good profit margin for a small business?
Revenue gets the attention, but profit margin is the number that tells you whether a business is actually…
2 min readAug 13Read
Invoicing basics
Proforma invoice vs commercial invoice: what is the difference?
Invoicing basics
Proforma invoice vs commercial invoice: what is the difference?
If you have ever been asked for a "proforma" and were not quite sure how it differs from…
2 min readAug 13Read
Invoicing basics
Invoicing software with the lowest fees in 2026
Invoicing basics
Invoicing software with the lowest fees in 2026
When people compare invoicing tools, they usually look at the monthly subscription. But for a lot of businesses,…
3 min readAug 13Read
Startups & growth
How to work out your burn rate and runway
Startups & growth
How to work out your burn rate and runway
Burn rate and runway are two of the most important numbers a young business can track, and two…
3 min readAug 13Read
Freelancing
How to invoice as a freelancer: a simple step-by-step guide
Freelancing
How to invoice as a freelancer: a simple step-by-step guide
You did the work. Now you have to ask for the money, and do it in a way…
3 min readAug 13Read

Latest from our socials

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Late payment isn't a cash-flow problem, it's a terms problem. 3 wording changes that get invoices paid faster.

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New on the blog: the lowest-fee invoicing tools of 2026, compared on what you actually pay to get paid.

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LinkedIn Billbooks

What makes a good profit margin for a small business? We broke down the benchmarks by industry, and how to read yours.

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Freelancers: your rate isn't just "market rate." Here's the break-even math most people skip.

6 days agoView post

Facebook Billbooks

Sending your first invoice? Our step-by-step freelancer guide takes you from blank page to paid.

4 days agoView post

Electricians: deposits, materials markup, job line items. The invoicing guide built for the trade is live.

1 week agoView post

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