InvoicesFox Blog

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Engineering 11 min read

How We Generate PDF Invoices in Laravel Without a Paid PDF API

A practical walkthrough of rendering invoice Blade templates to PDF with DomPDF, the layout pitfalls we hit, and why we kept generation on our own servers.

September 3, 2026 Read More →

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Engineering 10 min read

Building a Free Invoice Generator That Works Without Login

How we let guests create and revisit invoices using browser storage, what we deliberately do not sync to the server, and where accounts still matter.

September 1, 2026 Read More →

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Engineering 9 min read

Multi-Currency Invoice Math: Why Floating Point Breaks Your Totals

Rounding line items across 150+ currencies sounds simple until JavaScript floats disagree with your PDF. Here is the approach we use to keep money math boring.

August 29, 2026 Read More →

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Engineering 10 min read

One Tax Schema for VAT, GST, and Sales Tax

We needed one invoice model that could express UK VAT, Australian GST, and US sales tax without forking templates. This is the schema and the compromises.

August 26, 2026 Read More →

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Invoicing Guide 9 min read

10 Common Invoice Mistakes (And How We Catch Them in the UI)

Missing due dates, vague line items, and broken numbering still delay payments. Here is how freelancers slip up — and how product design can prevent it.

August 24, 2026 Read More →

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Cash Flow 8 min read

How to Follow Up on an Unpaid Invoice Without Burning the Relationship

A field-tested reminder cadence, sample wording, and what to check on the invoice itself before you escalate.

August 21, 2026 Read More →

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Tax & Legal 10 min read

How to Create a GST / VAT Invoice: Field Checklist That Actually Ships

A practical checklist of tax invoice fields we see businesses miss, with notes on labels that survive PDF export and client AP review.

August 17, 2026 Read More →

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Business Basics 8 min read

Free vs Paid Invoice Software: An Honest Decision Framework

When a free generator is enough, when you need accounts and recurring billing, and how we think about the free tier without pretending every business is the same.

August 14, 2026 Read More →

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Invoicing Guide 10 min read

How to Create a Professional Invoice: A Complete Step-by-Step Guide

Learn exactly how to create a professional invoice that gets paid faster. This step-by-step guide covers every element—from business details to payment terms—that every invoice must include.

April 4, 2026 Read More →