If you earn a salary from a regular job while also making money from freelancing, consulting, graphic design, online selling, or any side hustle, you are a mixed income earner. You receive a BIR Form 2316 from your employer showing taxes already withheld on your compensation, but you must still declare your freelance or business income and file one consolidated annual Income Tax Return (ITR). Many people in your exact situation feel anxious about getting the forms right, crediting the correct withheld taxes, and filing online without triggering penalties or missing a refund. This guide gives you the clear, practical steps to file your ITR online correctly under current BIR rules.

A mixed income earner receives compensation income (salary, wages, bonuses, or other pay from an employer subject to withholding tax) and income from trade, business, or the practice of a profession (freelance fees, commissions, sales, or professional services). You must report both sources in a single annual return so the BIR can see your full picture, credit taxes already withheld by your employer, and calculate whether you owe more tax or are due a refund.

Legal Basis for Filing

Section 51 of the National Internal Revenue Code of 1997 (as amended by Republic Act No. 10963 or the TRAIN Law, and subsequent laws including the CREATE Law) requires individuals engaged in trade or business or the practice of a profession — including those with mixed income — to file an annual income tax return. The return covers the full calendar year and must be filed regardless of the total amount of gross income. The deadline for calendar-year filers is April 15 of the following year. For income earned in 2025, you must file by April 15, 2026. Current filing guidelines are detailed in Revenue Memorandum Circular (RMC) No. 20-2026, as amended by RMC No. 37-2026.

Which Form Should You Use?

Most mixed income earners file BIR Form No. 1701 (Annual Income Tax Return for Individuals including Mixed Income Earners, Estates and Trusts).

If you qualify as a micro or small taxpayer and prefer a simplified two-page return with a single income tax rate option (graduated rates, 8% flat rate on gross sales/receipts, or exempt), you can use BIR Form No. 1701-MS. Both forms are now available for electronic filing through the latest eBIRForms package. Choose based on your gross receipts level and whether you want the simplified version — the eBIRForms software will help validate your choice.

Step 1: Register or Update Your Status as a Mixed Income Earner

If you were previously registered only as a pure employee (compensation earner), you must update your BIR registration once you start earning business or professional income.

Visit your Revenue District Office (RDO) or use the Online Registration and Update System (ORUS) at orus.bir.gov.ph. File BIR Form 1901 (Application for Registration for Self-Employed and Mixed Income Individuals) or the appropriate update form. You will receive an updated Certificate of Registration (COR) reflecting your mixed income status.

This step is essential. Without it, your records may not match when the BIR cross-checks your employer’s 2316 filings against your business income, which can lead to notices or audits later.

You may also need to:

Maintain books of accounts (simplified or regular, depending on your gross receipts).
Secure official receipts or invoices (Authority to Print or use BIR-accredited printers) if your business requires them.
Register for any applicable local business permits.

Step 2: Gather Your Documents Early

Start collecting these throughout the year or by late January:

BIR Form 2316 from every employer (usually issued by January 31). This shows your gross compensation, taxable compensation, and taxes withheld.
Records of your freelance or business income: sales invoices/receipts you issued, client contracts, bank statements or proof of payments received, and any BIR Form 2307 (Certificate of Creditable Tax Withheld at Source) issued by clients.
Expense records if you plan to claim itemized deductions (official receipts, invoices, contracts, depreciation schedules).
Copies of any quarterly income tax returns (BIR Form 1701Q) you filed for your business income.
Previous year’s ITR and attachments for reference.
Proof of any tax credits or payments made.

Keep organized digital and physical copies. Good record-keeping protects you in case of a BIR verification.

Step 3: Decide on Your Deduction and Tax Rate Method for Business Income

For the business or professional portion, you generally have these options:

Optional Standard Deduction (OSD): 40% of your gross income from business or profession (no need to list every expense).
Itemized Deductions: Actual allowable expenses (more work but potentially higher deduction if your costs exceed 40%).
8% Flat Rate: If your gross sales/receipts from business do not exceed ₱3,000,000 and you qualify, you may opt for 8% tax on gross sales/receipts instead of graduated rates plus deductions. In mixed income cases, the form handles the separation so the basic deduction or exemption is not double-counted.

The eBIRForms package will guide you through selecting and applying the correct method in the dedicated business income schedules. Input your compensation details from Form 2316 in the compensation section and your business figures in the business/profession section. The software performs the consolidation and credit calculations automatically.

Step 4: File Your ITR Online Using eBIRForms (Recommended Free Method)

For most individual mixed income earners who are not enrolled in eFPS, the standard way is the Offline eBIRForms Package (latest version 7.9.6.0 as of mid-2026).

Go to the official BIR eBIRForms page and download the latest Offline eBIRForms Package v7.9.6.0 (or higher). Also download the Installation User Guide.
Install the package on a Windows computer following the guide. It works offline for filling the form.
Open the software, create a new return, and select BIR Form 1701 (or 1701-MS if you qualify and prefer it) for the correct taxable year.
Fill in your personal details, TIN, RDO code, and taxpayer classification (mixed income).
Complete the compensation income section using the exact figures from your Form 2316(s).
Complete the business or professional income section: enter gross sales/receipts, cost of sales (if any), and your chosen deductions (OSD or itemized). The form calculates net income and tax.
Review the summary — the software will show total tax due after crediting withheld taxes from your 2316 and any quarterly payments. It also computes any surcharge or interest if you are filing late.
Validate the return. When everything is correct, click FINAL COPY to generate the submission file.
Submit the return electronically through the Online eBIRForms System (you will need internet for this step). You will receive a filing reference number and confirmation email or notification.
If tax is due, pay immediately through integrated ePayment channels (partner banks, e-wallets, or other BIR-accredited gateways) or at an Authorized Agent Bank (AAB).

Alternative easier options: Use a BIR-accredited Tax Software Provider (TSP) such as Taxumo or similar platforms. These often have user-friendly interfaces, automatically pull or guide document uploads, handle eAFS attachments, and file directly for you. They are especially helpful if you are not comfortable with the desktop eBIRForms package or if you are abroad.

Even returns with zero tax due or refunds must be filed electronically.

Step 5: Submit Required Attachments via eAFS

After filing the return, you must submit supporting documents electronically through the eAFS (Electronic Attachment Filing System) within the prescribed period (typically within 15 days after the filing deadline or your actual filing date if late).

Common attachments for mixed income earners include:

Scanned copies of BIR Form 2316 from all employers.
Summary Alphalist of Withholding Taxes (SAWT) data file if applicable.
Any BIR Form 2307 from clients.
Audited Financial Statements (if required for your gross income level or if you are VAT-registered and using itemized deductions).
Other proofs of income, deductions, or tax credits.

Follow the exact file naming convention required by eAFS (e.g., EAFS[TIN]ITR[details]). Only upload documents that actually apply to your situation. The eBIRForms software or your TSP will usually guide you on this step.

Common Challenges Mixed Income Earners Face and How to Handle Them

Many employees with side hustles forget to update their BIR registration, leading to mismatched records when the BIR matches employer 2316 data with other income sources. Update early to avoid this.

Technical issues with eBIRForms (slow loading, validation errors, or submission failures) are common during peak filing season (March–April). Use a stable internet connection, the latest package version, and try during off-peak hours. BIR Revenue District Offices have eLounge facilities where staff can assist with electronic filing for free.

Underreporting freelance income is risky. The BIR receives data from banks, client 2307 filings, and other sources. Declare everything accurately.

Late filing triggers a 25% surcharge (or 50% in some cases), interest, and possible compromise penalties under the NIRC. File on time even if you need to pay a small amount or claim a refund.

If you are based abroad or an expat with Philippine-sourced mixed income, the same forms and electronic processes apply (as a resident alien or if engaged in trade/business in the Philippines). You may need a trusted representative with a Special Power of Attorney or use a TSP that supports remote filing.

Quarterly filing (BIR Form 1701Q) is generally required for the business or professional income portion if tax is due. Many small mixed earners focus on the annual return but should check their specific obligation to avoid gaps.

Frequently Asked Questions

Do I need to register with the BIR as mixed income if I already have a TIN from my employer?
Yes. Starting a side hustle or freelance work changes your taxpayer classification. File BIR Form 1901 or the appropriate update through ORUS or your RDO to reflect mixed income status on your COR.

Can I still use BIR Form 1700 if I have a small freelance income?
No. Form 1700 is only for pure compensation income earners. Mixed income earners must use Form 1701 or 1701-MS.

How do I credit the taxes my employer already withheld?
Enter the exact details from your BIR Form 2316 into the compensation income section of Form 1701 or 1701-MS. The software will automatically credit these amounts against your total tax liability.

What if my freelance income is very small — do I still need to file?
Yes. Individuals with business or professional income (including mixed) must file the annual ITR regardless of amount under Section 51 of the NIRC.

Can I file my annual ITR manually at the RDO instead of online?
Current guidelines strongly encourage or require electronic filing for AITRs, including “no payment” returns. Use eBIRForms, eFPS, or a TSP. Manual filing is limited and may not be accepted in many cases.

Do I need a CPA to file as a mixed income earner?
Not required for most simple cases, especially if you use eBIRForms or a good TSP. However, if your business has significant expenses, audited financial statements, or complex deductions, a BIR-accredited tax practitioner or CPA can help ensure accuracy and maximize legitimate deductions.

What happens if I file late or underdeclare income?
You will face a 25% surcharge on the tax due (higher in fraud cases), daily interest, and possible compromise penalties. The BIR can also assess additional tax plus penalties during verification or audit. Accurate and timely filing avoids these issues.

How long should I keep my records after filing?
Keep all supporting documents, books of accounts, receipts, and copies of your ITR and attachments for at least five years or as required under the NIRC prescription periods, in case of BIR verification.

Can I amend my ITR if I made a mistake after filing?
Yes. You can file an amended return using the same form, marking it as amended, before any BIR audit or assessment. Use eBIRForms again and submit the necessary adjustments and attachments.

Key Takeaways

Mixed income earners file BIR Form 1701 (or the simplified 1701-MS if qualified) to consolidate salary and freelance/business income.
Update your BIR registration to mixed income status as soon as you start earning side income.
File electronically through the latest eBIRForms package v7.9.6.0 (or higher) or an accredited TSP — this is now the standard method.
Gather Form 2316 from your employer(s) and complete records of your business income and expenses.
Credit employer-withheld taxes properly in the compensation section and declare business gross receipts and deductions accurately.
Submit attachments electronically via eAFS after filing the return.
Meet the April 15 deadline to avoid surcharges and interest.
Good record-keeping and using the official software or a reliable TSP make the process straightforward and help you claim any refund you are entitled to.

Following these steps will help you stay compliant, protect yourself from unnecessary penalties, and handle your taxes confidently as both an employee and a freelancer. Start gathering your 2316 and business records early each year so filing becomes a routine task rather than a stressful rush.