QAP DAT File for a New Top Withholding Agent: Your First Quarter, Explained

A newly notified Top Withholding Agent (TWA) doesn’t start withholding on the date its notice letter is dated — it starts the first day of the month following the month the BIR publishes it on the official TWA list, per RR No. 31-2020. From that date, every local purchase of goods or services is subject to 1% or 2% withholding, and only those purchases belong in the first QAP DAT file — earlier purchases in the same quarter stay untouched.

This post assumes the reader already knows what a Top Withholding Agent is — for the full classification rules, the ₱12 million threshold, and current withholding rates, see Who Is a BIR Top Withholding Agent?. This post picks up where that one leaves off: the mechanics of the actual first QAP DAT file a newly designated TWA has to build, the effective-date rule that trips up first-timers, and what a first partial quarter looks like in practice.

What the TWA notice actually changes, operationally #

Being classified as a Top Withholding Agent doesn’t change your income tax or VAT obligations — it adds a new withholding duty on local purchases of goods and services that most businesses never had to track before. Once notified, a company must withhold 1% on goods and 2% on services from every local supplier it pays, regardless of whether that supplier is itself a TWA, and issue BIR Form 2307 to each one as proof of the amount withheld.

That new withholding activity then has to be reported. Under Revenue Regulations (RR) No. 2-98, Section 2.83.3, as amended, every withholding agent must attach an alphalist of payees to its withholding tax return — for TWA-driven expanded withholding tax, that alphalist is the Quarterly Alphalist of Payees (QAP), filed as a DAT file with BIR Form 1601-EQ. A business that has never filed QAP before now has to build one from scratch, starting with the quarter its TWA status takes effect.

When withholding actually starts — the effective-date rule new TWAs get wrong #

The single most consequential fact for a first-quarter QAP filer is the exact date the withholding obligation begins — and it is not the date on the BIR’s notice letter. Under RR No. 31-2020, which amended Section 2.57.3 of RR No. 2-98, the BIR’s published list of Top Withholding Agents is what legally starts the clock, not the individual notice a company may separately receive.

Secondary commentary on RR No. 31-2020 describes the mechanism this way:

“The [Top Withholding Agents shall be] published in a newspaper of general circulation. [This] shall serve as the ’notice’ to the top withholding agents… The obligation to withhold under this sub-section shall commence, or cease, as the case may be, on the first (1st) day of the month following the month of publication.”

— Section 2.57.3, Revenue Regulations No. 2-98, as amended by RR No. 31-2020, as summarized in 8box Solutions Inc.’s review of the regulation

In practice: if the BIR publishes the updated TWA list in April, a company appearing on that list becomes obligated to withhold starting May 1 — not the date its notice letter was printed, not the date it was received in the mail, and never retroactively to purchases made in April or earlier. The same rule runs in reverse for delisting.

What belongs in your first QAP DAT file #

A first-quarter QAP DAT file for a new TWA should only include local purchases of goods and services made on or after the effective date — never the whole quarter by default, even if the quarter itself is reported in full. Concretely, before the quarter closes, a new TWA needs:

• Confirmation of the exact effective date — the first day of the month following the month of publication, not the notice date.
• A log of every local purchase of goods or services made from that date forward, separated from purchases made earlier in the same quarter.
• BIR Form 2307 issued to each affected supplier, using ATC WC158/WI158 (goods, 1%) or WC160/WI160 (services, 2%).
• Monthly remittance via BIR Form 0619-E for the months already withheld, ahead of the quarterly BIR Form 1601-EQ and its attached QAP DAT file.

Purchases made before the effective date — even ones made earlier in the same reporting quarter — are not TWA-driven withholding transactions and should not appear in the QAP DAT file at all. This differs from a routine first-time withholding agent onboarding, where the trigger is a specific transaction type (rent, a professional fee) rather than a BIR-set date; see Filing Your First QAP DAT File: A New Withholding Agent’s Walkthrough for that separate, non-TWA scenario.

Worked example: a distributor’s first TWA quarter #

The company, dates, and amounts below are fictional, built only to show how the effective-date rule plays out inside a single quarter’s QAP DAT file. Solstice Hardware Distribution Corp. (fictional TIN 001-234-567-000) receives a BIR notice dated April 8, 2026 informing it that it has been included in the updated list of Top Withholding Agents, published on April 14, 2026. Applying the RR No. 31-2020 rule, Solstice’s withholding obligation begins May 1, 2026 — the first day of the month following the month of publication.

Solstice’s Q2 2026 QAP DAT file — attached to its BIR Form 1601-EQ for the April–June quarter — includes only the May and June rows, totaling ₱180,000 in income payments and ₱2,400 in tax withheld. The ₱180,000 April purchase is excluded entirely; it happened before TWA withholding took effect, even though it falls inside the same calendar quarter Solstice is now reporting.

Common first-quarter QAP mistakes for new TWAs #

1. Using the notice-letter date instead of the publication-based effective date. A notice dated April 8 does not mean withholding starts April 8 — it starts the first day of the month following the month the BIR published the list, which can be a different month than when the letter arrives.
2. Assuming a grace period and skipping the first month or two after the effective date. There is no informal grace period in the regulation; withholding is due from day one of the effective month.
3. Including pre-effective-date purchases in the QAP DAT file because they fall in the same reporting quarter, inflating both the withheld tax reported and the supplier’s expected BIR Form 2307 credit.
4. Applying the wrong ATC — coding a goods purchase under the 2% services rate (WC160/WI160) or vice versa, which produces a QAP row that won’t reconcile with the amount actually remitted on BIR Form 1601-EQ.
5. Filing the partial first quarter late, assuming a shorter reporting period means a later deadline. It doesn’t — the QAP DAT file for a partial first quarter is due on the same schedule as any other quarter; see QAP Filing Deadlines for the exact dates.

Frequently asked questions #

When does a newly notified Top Withholding Agent start withholding for QAP purposes? #

Withholding starts on the first day of the month following the month the BIR publishes the taxpayer on the official list of Top Withholding Agents, under Section 2.57.3 of Revenue Regulations No. 2-98, as amended by RR No. 31-2020. It is not the date the notice letter is dated, signed, or received, and it is never retroactive to purchases made before that effective date.

Do I include purchases made before my TWA effective date in my first QAP DAT file? #

No. Only purchases of goods and services made on or after the first day of the month following publication are subject to the 1%/2% withholding obligation and belong in QAP. Purchases made earlier in the same quarter, before the effective date, are excluded even if the QAP DAT file otherwise covers that full quarter.

What withholding rate does a new Top Withholding Agent apply? #

A Top Withholding Agent withholds 1% on local purchases of goods (ATC WC158/WI158) and 2% on local purchases of services (ATC WC160/WI160), under RR No. 2-98 as amended by RR No. 11-2018 and RR No. 24-2025.

Does a partial first quarter still use the standard QAP deadline? #

Yes. There is no extended or delayed deadline for a first, partial quarter of TWA withholding. The QAP DAT file for that quarter attaches to BIR Form 1601-EQ and is due on the same schedule as any other quarter’s filing, even if the taxpayer only withheld for part of it.

What’s the most common QAP mistake a newly notified TWA makes in its first quarter? #

The most common mistake is miscalculating the effective date — either withholding starting from the date on the notice letter instead of the first day of the following month, or assuming a grace period exists and skipping withholding on purchases made right after the correct effective date.

Do I need to register a new BIR tax type before filing my first QAP as a TWA? #

In most cases the expanded withholding tax (EWT) tax type is already active for an existing business, since TWA status is layered onto an already-operating taxpayer. It is still worth confirming EWT registration and BIR Form 1601-EQ enrollment are active in the BIR system before the first TWA-driven QAP DAT file is due, since a mismatch there can delay eSubmission.

Summary #

The single fact that governs a new Top Withholding Agent’s first QAP DAT file is the effective date set by RR No. 31-2020: withholding begins the first day of the month following the month the BIR publishes the TWA list, never the notice-letter date and never retroactively. Everything else follows from that — only purchases made on or after that date belong in the first QAP, at 1% for goods and 2% for services, issued on BIR Form 2307 and reported under the correct ATC. Confirm the exact publication date behind your notice before building the file, and a first, partial-quarter QAP becomes a straightforward date cutoff rather than a guess. For the classification rules behind TWA status itself, see Who Is a BIR Top Withholding Agent?, and for the non-TWA version of a first QAP filing, see Filing Your First QAP DAT File: A New Withholding Agent’s Walkthrough.