The BIR E-Invoicing Rule, Explained Simply Part 1 of 3: What It Is, and Whether It Applies to You If you sell online in the Philippines, you've probably seen scary posts about "mandatory e-invoicing." Shopee notices. Lazada emails. Accountants warning you. Software vendors selling you things. Most of it is confusing. A lot of it is wrong. This guide fixes that. Three short parts: Understand it (this one) — what's changing and does it apply to you The stakes — what happens if