Guides sole proprietors and individual professionals in the Philippines through their complete annual tax engagement: confirming 8% flat-rate vs graduated-rate election, computing income tax on Forms 1701 or 1701A, filing quarterly percentage tax (Form 2551Q) where required, crediting withholding tax certificates (Form 2307), and meeting all BIR deadlines under the TRAIN Law.
Confirm the taxpayer's BIR registration status, TIN, and Certificate of Registration (Form 2303). Establish the nature of income — purely self-employed, professional, or mixed income earner — and flag any corporation or partnership situations that are out of scope. Verify the taxpayer is not VAT-registered and that annual gross receipts are expected to stay within or below the ₱3,000,000 threshold that caps the 8% option.
Determine which tax regime applies for the year. The 8% flat-rate option (in lieu of graduated income tax and 3% percentage tax) is available only to non-VAT taxpayers with gross receipts ≤₱3,000,000. If eligible, compare the 8% flat rate against graduated rates with OSD (40% of gross) and graduated rates with itemized deductions to find the optimal election. The election must be made on the first quarterly return (Form 1701Q for Q1) or via Form 1905 before the first quarter; it does not carry over automatically from the prior year.
Compile total gross receipts or sales for the year from all sources. Collect all BIR Form 2307 certificates issued by clients or payors — these creditable withholding taxes (EWT at 5% or 10% for individuals, depending on sworn declaration status) will reduce the final tax payable. Reconcile the sum of Forms 2307 against the taxpayer's own revenue records. Flag any missing certificates, as they cannot be claimed without the physical Form 2307.
Applicable only if the graduated rate was elected. Compute allowable deductions using either the Optional Standard Deduction (OSD — 40% of gross sales/receipts, no documentation required) or itemized deductions (actual business expenses with BIR-registered receipts/invoices). Note that entertainment, amusement, and recreation expenses are capped at 0.50% of net revenue for sellers or 1% for service providers. Under the 8% flat rate, no deductions are allowed and this phase is skipped.
If the graduated rate was elected, the taxpayer owes 3% percentage tax on gross receipts each quarter (Form 2551Q), due within 25 days after each quarter end. Verify that Q1–Q3 percentage tax returns were filed and paid on time. Compute any Q4 amount due. This phase is skipped entirely for taxpayers who elected the 8% flat rate, as the 8% option is expressly in lieu of percentage tax.
Prepare the annual Income Tax Return — Form 1701A for taxpayers using the 8% flat rate or OSD, or Form 1701 for those using itemized deductions or with mixed income. Apply the graduated tax brackets (0% up to ₱250,000; then 15%/20%/25%/30%/35% in progressive bands up to ₱8,000,000+) or the 8% flat rate computation. Credit all quarterly tax payments (Form 1701Q installments) and all creditable withholding tax (Form 2307 certificates) against the computed annual tax. Determine if a refund or balance due results. File via eBIRForms or eFPS by 15 April.
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