When you register a business in the Philippines, BIR and related agencies expect your line of business to be expressed in standardized wording. PSIC is the classification layer that keeps that wording consistent across registration, reporting and internal admin workflows.
This page explains how PSIC fits into a BIR-facing workflow, where it appears on forms and how to use it without treating it as a legal shortcut.
This page is part of an independent reference site. Verify critical tax, registration, legal or reporting decisions against the current official PSA, BSP or BIR source that applies to your workflow.
BIR Form 1901, Form 1903 and Form 1905 all require you to describe your line of business or the change you are making to it. PSIC gives you a standard way to express that activity so the same business can be described consistently across registration, tax and reporting contexts. That consistency matters because the BIR, DTI, SEC, local permit offices and internal business records often need compatible wording even when they are not using the exact same form.
A typical new-registration sequence starts with plain business wording, then moves through the chosen registration form, local permits and the final BIR review. PSIC is the reference layer that keeps those descriptions comparable. If the wording you use for the DTI or SEC stage, the local permit stage and the BIR filing stage drifts apart, the result can be a registration trail that does not match how the rest of the government sees the business.
Treat PSIC lookup as a classification exercise, not a legal shortcut. Start from the actual activity, search by the most concrete noun you have, climb up and down the hierarchy to check the fit, then compare sibling subclasses before you commit. If the business has more than one revenue stream, separate primary from secondary activities and shortlist them individually instead of trying to compress everything into one broad label.
Online sellers and freelancers often sit near the border between retail trade, information and communication, and professional services, so the deciding factor is usually what is being sold rather than the channel it is sold through. Mixed-activity businesses such as a cafe that also sells branded merchandise, or a clinic that also sells supplements, need a primary activity plus secondary ones. Holding companies and consultants can also be easy to misread, because similar-looking wording can point to different subclasses with different real-world implications.
This site helps you narrow likely activity wording, compare similar codes and understand where a business sits in the official hierarchy. It does not guarantee that any specific code will be accepted by your RDO, and it is not a substitute for BIR's official instructions or advice from a licensed accountant or tax practitioner. PSIC selection is an input to your registration; the final authoritative step is still the BIR review of your application against the source list it currently uses.
Before you walk into the BIR office or open eRegistration, have a short plain-language description of the activity, the shortlisted PSIC subclass, one or two sibling subclasses you ruled out and the source you used to confirm the wording. That preparation will not change the legal requirements, but it usually shortens the conversation and reduces the chance of filing a correction later.
No. Use PSIC to narrow the activity wording, then verify the final filing requirement against the official instructions for the form or workflow you are using.
It gives the business a standardized industry label, which helps keep the BIR filing, local permits and internal records aligned to the same activity.
Compare the real business activity, the exact PSIC wording and the nearest sibling subclasses. Do not choose a code only because the name sounds close.
Use the dominant revenue activity as the primary one and keep the other activities as separate secondary candidates rather than forcing everything into one creative label.