BlueInvoice Blog Overview

Browse all articles and tutorials in one overview.

Split illustration showing the benefits of sending invoices promptly, with immediate payment flow on one side and delayed payment on the other.
Aug 18, 2026 · 5 min

When to Send an Invoice: Timing Matters More Than You Think

Send your invoice the moment the work is done, not days or weeks later. For one-off projects, that means invoicing rig… Read more

A professional reviewing invoices and financial documents at a bright, organized desk to catch costly errors during reconciliation.
Aug 13, 2026 · 6 min

What Invoice Reconciliation Is and Why It Prevents Costly Errors

Reconciling invoices means checking every incoming invoice against your own records (purchase orders, delivery receipt… Read more

Isometric illustration showing a business exchanging unpaid invoices for immediate cash through an invoice factoring company, with arrows tracing the full payment cycle.
Aug 09, 2026 · 6 min

Invoice Factoring Explained: Selling Your Invoices for Immediate Cash

Invoice factoring is when you sell your unpaid invoices to a third-party company (a "factor") at a small discount, and… Read more

A clean editorial illustration showing a blanket purchase order document alongside invoices and a handshake, representing supplier agreements.
Aug 03, 2026 · 5 min

What Is a Blanket Purchase Order and How Does It Affect Invoicing

A blanket purchase order is a single, long-term purchase order that covers multiple deliveries of goods or services ov… Read more

A professional desk scene with documents and a calculator illustrating the concept of issuing a debit note in business.
Jul 29, 2026 · 5 min

What Is a Debit Note and When Do You Issue One

A debit note is a document a buyer or seller issues to formally record that an amount owed has increased. Most often i… Read more

Two invoices side by side illustrate the difference between a retainer invoice and a proforma.
Jul 23, 2026 · 5 min

Retainer Invoice: What It Is and How It Differs From a Proforma

A retainer invoice is a bill you send a client to collect payment before work begins, usually to secure your availabil… Read more

Illustration comparing accounts payable and receivable, with bills, invoices, money flow, and a balance scale showing the two sides of cash flow.
Jul 16, 2026 · 5 min

Accounts Payable vs Accounts Receivable: What's the Difference

The simplest way to remember it: accounts payable is money your business owes, and accounts receivable is money owed t… Read more

Minimal self-billing process diagram with buyer, invoice, and supplier icons connected by arrows and a large check mark.
Jul 09, 2026 · 5 min

Self-Billing Invoices: What They Are and When Buyers Issue Them

A self-billing invoice is an invoice that the buyer creates on behalf of the seller, instead of the seller sending it … Read more

Two invoices showing phased billing with growth charts, gear icons, and coin stacks, connected by arrows to a percentage pie chart representing installment payment breakdowns.
Jun 27, 2026 · 5 min

Partial Payments: How Split Invoicing Works

A partial payment invoice is a bill that asks the client to pay one slice of a larger total instead of the whole thing… Read more

Modern illustration comparing tax invoices and regular invoices with contrasting document layouts, checkmarks, and financial symbols on a bright professional background.
Jun 21, 2026 · 7 min

What Makes a Tax Invoice Different From a Regular Invoice

A tax invoice and a regular invoice are not the same document, even though they look similar at first glance. The core… Read more

Modern illustration showing a document comparison scene with an estimate form and invoice side by side, symbolizing business billing processes.
Jun 16, 2026 · 7 min

Estimate vs Invoice: When to Send Each and Why It Matters

An estimate and an invoice are both billing documents, but they serve completely different purposes and carry differen… Read more

Modern illustration of organized shipping documents and international trade symbols arranged on a bright workspace, representing commercial invoice requirements.
Jun 09, 2026 · 8 min

Commercial Invoice Requirements for International Shipping

A commercial invoice for international shipping is the primary customs document that travels with your goods across bo… Read more