BIR compliance

Plain-language BIR compliance guides for Philippine small businesses: registration, books of accounts, returns, and deadlines.

Pillar guide

BIR Compliance Guide for Small Businesses in the Philippines

BIR compliance isn't a stack of unrelated forms — it's one system that runs from registration to year-end. Here's the whole lifecycle, in order, and how your books hold it together.

10 min readRead

DAT filesPillar guide

BIR DAT File Guide for the Philippines

DAT files are how the BIR ingests your summaries — SLSP, SAWT, QAP, alphalist. Here's what they are, how validation and submission work, the errors that bite, and why clean books make all of them fall out at once.

9 min readRead

RegistrationPillar guide

Business Registration Workflow in the Philippines (DTI/SEC, BIR, SSS, PhilHealth, Pag-IBIG)

Registering a business in the Philippines is a sequence, not a single counter. Here's the order — name, BIR, then employer agencies — and exactly what each step produces.

10 min readRead

VATPillar guide

VAT Filing Guide for Philippine Businesses

VAT filing isn't really about the form — it's about records that reconcile. Here's the end-to-end flow from output and input VAT through the 2550Q and SLSP, records first.

9 min readRead

WithholdingPillar guide

Withholding Tax Guide in the Philippines

If you pay suppliers, rent, or professional fees, you probably have to withhold. Here's what withholding tax is, the kinds you'll meet, the certificates and support files, and how it all reconciles to your books.

11 min readRead

Registration

BIR Form 2303 (Certificate of Registration) Explained

Your Certificate of Registration isn't just framed paper on the wall — it's the configuration sheet for your entire tax life. Here's how to read it, line by line, and what to do when it changes.

9 min readRead

BIR Tax Calendar for Philippine Businesses: How to Plan Your Filings

The BIR calendar isn't one deadline — it's layers of monthly, quarterly, and annual obligations. Here's how it's structured and how to build your own, with the actual dates from the BIR.

10 min readRead

DAT files

BIR XML Filing Guide for Philippine Workflows

XML is how the BIR receives your e-filed returns, while DAT files carry the summaries. Here's what XML filing is, how it's produced and validated, and why one set of books should feed every output.

9 min readRead

Registration

Registering Your Books of Accounts with the BIR

Every registered business must keep BIR-registered books of accounts — but 'registered books' can mean three very different things. Here's how manual, loose-leaf, and computerized actually work, and which one fits a business that keeps its books in software.

9 min readRead

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