Facturi Blog

Invoicing tips, guides & compliance

Practical invoicing tips, step-by-step guides, and compliance advice for freelancers and small businesses. Learn how to get paid faster, issue legally valid invoices, and stay on top of tax and e-invoicing regulations.

Whether you are just starting out as a freelancer or managing invoicing for a growing team, staying informed makes a real difference. Our invoicing guides cover everything from creating your first professional invoice to navigating complex compliance requirements like Spain's VeriFactu electronic invoicing law.

Browse our latest tips on getting paid faster, setting up recurring invoices, handling multi-currency billing, and using digital signatures to make your invoices legally binding — all written for real businesses, not accountants.

Guide Featured

Quotes (Presupuestos): How to Create, Send, and Convert Them into Invoices in One Click

A quote is not an invoice — and confusing the two can cost you money and compliance headaches. Learn what a professional quote must include, how to track acceptance, and how to turn an accepted presupuesto into a real invoice without retyping a single line.

Compliance Featured

VeriFactu Explained: Spain's Electronic Invoicing Requirements for Businesses

Spain's Ley Antifraude introduces VeriFactu, a mandatory electronic invoicing standard that affects all businesses issuing invoices in Spain. Here is everything you need to know.

Tutorial Featured

How to Create a Professional Invoice Online in Under 5 Minutes

Creating a professional invoice does not have to take half an hour. This step-by-step tutorial shows you how to go from blank screen to sent invoice in five minutes or less.

Guide Featured

What Is an Online Invoicing System? A Complete Guide for Small Businesses

Discover what an online invoicing system is, how it works, and why thousands of small businesses and freelancers are replacing paper invoices with digital solutions.

Guide Featured

How to Calculate a Spanish Nómina: A Step-by-Step Guide for Employers

Understanding the Spanish payroll calculation — devengos, IRPF withholding, Seguridad Social contributions, and coste empresa — is essential for every business with employees in Spain.

All Articles

Guide

From Lead to Paid Invoice: Why Your Invoicing Tool Should Include a CRM

Spreadsheets full of "people to call back" lose you money. A lightweight CRM — leads, a Kanban pipeline, and an activity...

Tutorial

Invoice Tracking 101: How to Know When Your Invoice Is Opened and Paid

Sending an invoice and waiting is one of the most frustrating parts of running a business. Invoice tracking gives you re...

Guide

How to Invoice International Clients with Multi-Currency Support

Billing clients in different countries introduces currency, language, tax, and legal complexity. Here is how to handle i...

Guide

Proforma Invoice vs Invoice: Differences and When to Use Each

A proforma invoice looks like an invoice but has none of its legal weight. Learn what separates the two, when to send ea...

Tips

7 Proven Tips to Get Paid Faster with Online Invoicing

Late payments are one of the biggest cash flow killers for small businesses. These seven invoicing strategies have been...

Compliance

VAT in Saudi Arabia: Rates, Registration and Returns

A working guide to Saudi VAT: the 15% standard rate, what is zero-rated or exempt, the SAR 375,000 registration threshol...

Compliance

Simplified vs Standard Tax Invoice in Saudi Arabia

ZATCA recognises two tax invoice types. Learn which one applies to each sale, the exact fields each must carry, and why...

Freelancing

The Complete Guide to Recurring Invoices for Freelancers

If you bill clients on a regular schedule, you are leaving money on the table every time you create an invoice manually....

Invoicing

Best Invoicing Software for Freelancers (2026 Guide)

There is no single best invoicing tool for freelancers - only the cheapest, simplest one that covers every obligation yo...

Compliance

ZATCA Phase 2: Integration Requirements & Rollout Waves

What ZATCA Phase 2 really requires from your billing system: UBL 2.1 XML, a cryptographic stamp and CSID, the UUID/ICV/P...

Guide

Invoice delivery tracking: from sent to paid, step by step

How Facturi tracks an invoice through its whole life: the Draft, Sent, Partial and Paid pipeline, what happens the momen...

Guide

Online Invoicing vs Paper Invoicing: Which Is Right for Your Business?

Paper invoices have served businesses for centuries. But in 2025, the comparison is no longer close. Here is a detailed,...

Compliance

ZATCA E-Invoicing (Fatoora): The Complete Phase 2 Guide

Saudi Arabia's ZATCA e-invoicing programme (Fatoora) replaces PDFs with structured, cryptographically stamped XML valida...

Security

How Digital Signatures Make Your Invoices Legally Binding

Digital signatures do more than add a name to a document. Learn how RSA encryption turns your invoices into tamper-proof...

Tips

10 Benefits of Switching to Online Invoicing Software

Still sending invoices by email or post? Here are 10 concrete benefits of switching to online invoicing software — from...

Guide

Nómina vs Factura: Key Differences Every Spanish Freelancer Should Know

Are you an employee or self-employed? In Spain, the answer determines whether you receive a nómina or issue a factura —...

Compliance

IVA in Spain: Rates, Exemptions, and How to Apply VAT on Your Invoices

IVA is Spain's value-added tax and applies to almost every invoice you issue. This guide covers the three IVA rates, com...

Compliance

IRPF Withholding on Freelance Invoices in Spain: Complete Guide

Most freelancers in Spain must apply an IRPF retention on their invoices — but many get this wrong. This guide explains...

Compliance

Legal Invoice Requirements in Spain: What Every Factura Must Include

Spanish law sets strict rules about what a valid invoice must contain. Missing even one mandatory field can make your fa...

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