Invoicing guides and resources
Free guides to help you invoice correctly, stay compliant, and get paid faster — wherever you do business.
Every guide here is written for the person who has to issue the document, not the accountant who audits it. We cover what each field on an invoice is for, how invoice numbering works, and how tax — GST, SST, or VAT — is applied line by line. We also clear up the difference between a quotation, a purchase order, and an invoice once a deal moves from offer to order to bill, and get into payment terms and how to chase late payment without losing the client.
Today the library reflects the jurisdictions our users ask about most: Singapore GST, Malaysia SST, and Philippines VAT, alongside jurisdiction-neutral guides that apply wherever you invoice. New country guides are added as we publish them.
Invoice vs Receipt: What's the Difference?
A clear breakdown of invoices and receipts — what each one confirms, when to issue each, and why keeping them separate…
Read guide →Philippines VAT Invoice Guide (2026)
What Philippine VAT invoicing rules actually require in 2026, including the EOPT Act reform that replaced the Official…
Read guide →How Browser-Based Tools Protect Your Privacy (And Why It Matters)
What client-side processing actually means, and why BizAssets never uploads your files to a server.
Read guide →Invoice vs Quote vs Purchase Order: What's the Difference?
A clear breakdown of quotations, purchase orders, and invoices — what each one does, who issues it, and how they fit to…
Read guide →SST Invoice Requirements for Malaysian Businesses (2026 Guide)
A practical guide to Malaysia's SST registration thresholds, current rates, and mandatory invoice fields for freelancer…
Read guide →What is a Proforma Invoice? A Complete Guide
Learn what a proforma invoice is, when to use one, and how it differs from a standard invoice, quote, and purchase orde…
Read guide →How to Invoice Clients — A Complete Guide
Learn how to invoice clients professionally. This guide covers what to include on every invoice, how to set payment ter…
Read guide →How to Create a GST Invoice in Singapore (2026 Guide)
Learn how to create a compliant GST invoice in Singapore under IRAS rules — including the SGD 1,000 threshold, mandator…
Read guide →How to use these guides
Pick the guide that matches where you bill, then put it into practice — create your first invoice free, or browse all five finance document generators for quotations, receipts, purchase orders and proforma invoices. Everything downloads as a clean PDF in any currency, with no signup required.
These guides are general information, not tax, legal, or financial advice — verify current rates, thresholds, and requirements with the relevant authority or a licensed professional before you file.