Invoicing

4 pieces on this.

An invoice with eight ticked field rows and three crossed-out optional ones

What a US invoice has to include, and what it does not

No general US statute says what a commercial invoice must contain, so most "required field" lists are convention, not law. Here is what actually makes an invoice work, what the two federal exceptions (customs and federal contracts) really require, and which fields you can drop.

09 Sept 2026 · 21 min read

Invoicing Getting paid

A payment timeline from issue to due date, with the gap after the due date marked

Invoice payment terms that actually get you paid

Net 30, due on receipt, deposits, milestones and late fees, and what each one actually does to your cash. Plus why an invoice is the worst place for a payment term to appear for the first time.

09 Sept 2026 · 19 min read

Invoicing Getting paid

Twelve months of uneven revenue bars crossing the flat monthly line other tools assume

How to choose invoicing software when your revenue is not monthly

If your income arrives in bursts rather than on a monthly clock, most invoicing comparisons are measuring the wrong things. Here is how to judge project billing tools on deposits, milestone schedules, committed future revenue, and what happens to your records the month you stop paying.

09 Sept 2026 · 18 min read

Invoicing Getting paid

Two states either side of a split, showing CGST plus SGST within a state and IGST across states

CGST and SGST, or IGST: how to know which goes on your invoice

One field decides it, and it is not the one most people think. A practical guide to place of supply for services, why exports are different, and the mistakes that cost the most to unwind.

23 Aug 2026 · 3 min read

GSTInvoicing