Quick answer

If you earn business or professional income in the Philippines, generally register with the Bureau of Internal Revenue (BIR) before you start, even if you work from home, sell through an online marketplace, or freelance alongside a salaried job. Use your existing Taxpayer Identification Number (TIN), check the tax types on your Certificate of Registration (COR), issue registered invoices, and file each required return on time. A required return generally still has to be filed when there are no sales or no tax to pay. The former ₱500 annual BIR registration fee has been abolished. Supreme Court E-Library

If you earn only compensation, your employer generally withholds your income tax. You may qualify for substituted filing if you had only one Philippine employer for the calendar year and the tax was correctly withheld. If you had two employers during the year, even in succession, or also earned income from freelancing or a business, check your own annual filing obligation. Supreme Court E-Library

How to register or update your BIR records

Use one TIN. If you already have a TIN from employment or an earlier business, use it when registering your new activity. Check which Revenue District Office (RDO) handles the registration and whether your records need to be updated or transferred. Supreme Court E-Library
Register before the applicable cutoff. Under Revenue Regulations (RR) No. 7-2024, commencement is reckoned from the first sale or the lapse of 30 calendar days from issuance of an applicable local permit or professional or occupational tax receipt, DTI business-name certificate, or SEC registration certificate, whichever comes first. If you make a sale within that 30-day period, the first sale controls. Check the documentary checklist for your taxpayer type and branch, if any. BIR registration and any applicable local permits are separate requirements. bir-cdn.bir.gov.ph
Use the channel available for your transaction. The BIR’s Online Registration and Update System (ORUS) supports registration and updates. NewBizReg is an alternative for submitting business registration documents to the concerned RDO. Use the BIR’s current checklist for your transaction, including any requirements for invoices and books of accounts. bir.gov.ph
Check your COR and build a filing calendar. Confirm your registered name, address, business activity, tax types, and applicable returns. Arrange your registered books and invoicing before transacting. If you change address, add a branch, change tax status, or permanently stop operating, process the applicable update or cancellation and keep proof. For a closure, reconcile outstanding returns and liabilities through the effective cessation date. Supreme Court E-Library

Which taxes might apply?

Income tax and the 8% option

Eligible self-employed individuals and professionals may elect the 8% income tax option if their gross sales and other non-operating income do not exceed the applicable VAT threshold and they meet the other requirements. The 8% option replaces graduated income tax on the covered business or professional income and the percentage tax under Section 116. It is unavailable to VAT-registered taxpayers, and the election must be made for each taxable year in the manner and within the period prescribed by the BIR. For an existing business, address the election in the first quarter. For a new business, check the registration or initial-quarter election procedure. bir-cdn.bir.gov.ph

If you earn solely from self-employment or professional practice, the 8% computation generally applies to gross sales and other non-operating income above ₱250,000. If you are a mixed-income earner, your compensation is taxed at graduated rates, and the 8% computation on your qualifying business or professional income has no separate ₱250,000 deduction. If you exceed the threshold during the year, review the income-tax recomputation, percentage tax for the applicable period, and the timing of VAT registration. bir-cdn.bir.gov.ph

VAT, percentage tax, and withholding

VAT. The general small-business VAT threshold is ₱3 million, subject to the statutory adjustment every three years using the Consumer Price Index. Mandatory registration generally turns on whether sales covered by the registration test exceeded the threshold in the preceding 12 months or can reasonably be expected to exceed it in the next 12 months. Check transaction-specific exemptions and special rules before applying the general threshold. Voluntary VAT registration can also affect your filing obligations and eligibility for the 8% option. Supreme Court E-Library
Percentage tax. The ordinary Section 116 rate is 3% of gross quarterly sales for covered non-VAT taxpayers. An eligible individual who validly elected the 8% option generally does not separately pay Section 116 percentage tax for the covered year. Other percentage taxes have their own rules. Supreme Court E-Library
Withholding. If you have employees or make payments subject to withholding, check your separate duties to withhold, remit, file returns, and issue certificates. If a client deducts creditable withholding tax from your payment, obtain BIR Form 2307 and reconcile it against your invoices and return. Report the income under the applicable rules and claim the supported tax credit separately. Supreme Court E-Library

Common returns and regular deadlines

These are ordinary deadlines. Check BIR issuances for the specific period, especially when a deadline falls on a weekend or holiday or a circular grants an extension. For example, RMC No. 30-2026 moved the filing, payment, and attachment deadline for 2025 annual income tax returns originally due April 15, 2026 to May 15, 2026. bir.gov.ph

Obligation	Common BIR form	Regular deadline
Quarterly income tax for self-employed or mixed-income individuals	1701Q	May 15, August 15, and November 15 for the first three quarters
Annual individual income tax, when required	Applicable 1700 or 1701-series form	April 15 of the following year
Quarterly corporate income tax	1702Q	Within 60 days after the end of each of the first three taxable quarters
Annual corporate income tax	Applicable 1702-series form	15th day of the fourth month after the taxable year ends
Quarterly VAT	2550Q	Within 25 days after the taxable quarter ends
Quarterly percentage tax under Section 116	2551Q	Within 25 days after the taxable quarter ends

Use the current BIR instructions to select the annual return and determine how to submit attachments. The correct form can depend on your income sources, taxpayer classification, and filing platform. Withholding returns and information reports have separate schedules. bir.gov.ph

How to file and pay

Use eFPS if you are required to use it or are enrolled under the applicable rules. For other electronic filers, use eBIRForms or the channel the BIR prescribes for your return. Pay through the applicable eFPS bank or a BIR-authorized payment channel. If manual filing or payment is permitted for your case, follow the current BIR instructions for the return and period, including where to submit a no-payment return or make an over-the-counter payment. bir.gov.ph

Check the TIN and branch code, form number, taxable period, and amount before submitting or paying. Save the filed return, submission acknowledgment, payment confirmation, and proof of any separately submitted attachments. Filing and payment are separate steps when you use separate channels. If a system fails near a deadline, save the error message and timestamp, check for a BIR advisory, and use an authorized fallback if one is available. bir.gov.ph

Invoices, books, and evidence to keep

The invoice is the primary sales document for goods and services. VAT-registered sellers issue a registered VAT invoice for every sale. Under the general non-VAT invoicing rule, issue a registered invoice for a sale of ₱500 or more, or for any amount if the buyer asks. If individual sales below the threshold that were not separately invoiced total at least ₱500 by day-end, issue an invoice for the aggregate. A collection or official receipt can document payment. Transitional use of old official receipts as invoices depends on compliance with the BIR’s conversion and invoicing requirements. Supreme Court E-Library

If you sell online or use a computerized accounting or invoicing system, check whether you fall within an electronic-invoicing category. RR No. 26-2025 gives specified covered taxpayers until December 31, 2026 to comply with electronic invoice issuance. Check the regulation’s coverage for your taxpayer class and system. bir-cdn.bir.gov.ph

Keep your COR and updates, registered books, invoices, contracts, bank and platform settlement records, expense support, withholding certificates, returns, acknowledgments, and payment confirmations. The general statutory retention period for books and other accounting records is five years, counted from the day after the return deadline or, if the return was filed late, from its actual filing date, for the taxable year in which the last entry was made. Preserve relevant records while an audit, protest, refund claim, or court case remains pending. Supreme Court E-Library

Common mistakes and when to act quickly

Using net deposits as gross sales. Reconcile customer invoices, platform fees, refunds, withholding, and bank deposits. A payout figure can combine several items that need separate treatment in your records. Supreme Court E-Library
Skipping nil returns or assuming a dormant business is already closed. Check the tax types and periods still open in your BIR records. If you missed filings, identify each return, gather the supporting records, and address the missed filings and payments promptly. Penalties depend on the violation and taxpayer classification. Qualifying micro and small taxpayers have reduced rates for certain penalties and interest. bir-cdn.bir.gov.ph
Treating a BIR notice as routine correspondence. Keep the notice, envelope or electronic service record, and proof of the date received. A formal assessment generally must be protested within 30 days from receipt. If you request reinvestigation, relevant supporting documents generally must be submitted within 60 days from filing the protest. A denial can start a separate 30-day appeal period. The rules on BIR inaction and the 180-day period depend on the protest and procedural posture. Seek Philippine tax counsel promptly if you receive a formal assessment, protest denial, or collection warrant. lawphil.net

Frequently asked questions

Do I have to register if I earn less than ₱250,000?

Generally, yes, if you are carrying on a business or practicing a profession. The ₱250,000 amount affects certain income tax computations. Registration, invoicing, and required returns are separate obligations. bir-cdn.bir.gov.ph

I changed jobs during the year. Can my new employer handle substituted filing?

Substituted filing generally requires only one Philippine employer for the calendar year and correct withholding. If you had successive employers, obtain BIR Form 2316 from each and use the certificates to prepare your annual return. Supreme Court E-Library

Can I correct a return after filing it?

Generally, yes. The Tax Code allows a return to be amended within three years from filing, provided a notice for audit or investigation has not actually been served in the meantime. Keep the original and amended returns, the reconciliation, and proof of any additional payment. If you already received a notice or expect a refund, check the separate procedures and deadlines before acting. Supreme Court E-Library

Official sources

This article provides general Philippine tax information. The correct treatment and deadline for your case depend on your taxpayer status, transactions, records, and any applicable BIR issuance or notice. Official sources checked November 9, 2026.