RELIEF SLSP for the Quarter You Become VAT-Registered: Which Transactions Actually Count?

RELIEF SLSP only lists transactions dated on or after the VAT effectivity date shown on your updated Certificate of Registration — not every sale and purchase in the calendar quarter you happened to register in. A business that crosses the ₱3,000,000 VAT threshold mid-quarter still has days, sometimes most of the quarter, where it was operating as a percentage taxpayer. Those earlier transactions were never VAT transactions in the first place, so they have no business appearing in a VAT-only filing like RELIEF SLSP.

Why does the quarter you register for VAT need special treatment in RELIEF SLSP? #

RELIEF SLSP is strictly a VAT compliance filing, attached to BIR Form 2550Q — it has no role at all for a taxpayer still under percentage tax, and that fact alone decides what belongs in it during a straddling quarter. As established on this site’s guide to who must file RELIEF SLSP, the filing obligation flows from VAT-registration status, not from a peso threshold on sales or purchases. A business that spends the first six weeks of a quarter as a non-VAT percentage taxpayer and the remaining six weeks as a VAT-registered taxpayer did not acquire a RELIEF SLSP obligation for the whole quarter — it acquired one only for the portion that falls on or after its VAT effectivity date.

That distinction matters because the natural instinct is to treat “the quarter I became VAT-registered” as one block of data to drop into the DAT file. It isn’t. The pre-effectivity days were never VAT transactions, so RELIEF SLSP — a VAT filing — has nothing to say about them.

When does VAT liability, and the RELIEF SLSP obligation, actually start? #

VAT liability, and everything that comes with it, starts on the effectivity date printed on the taxpayer’s updated Certificate of Registration (BIR Form 2303) — not on the date the ₱3,000,000 threshold was crossed, and not on the date BIR Form 1905 was filed. Under Section 236(G) of the National Internal Revenue Code, a taxpayer whose cumulative gross sales or receipts exceed ₱3,000,000 in any trailing 12-month period must file BIR Form 1905 within 30 days after the end of the month the threshold was breached, as covered in more depth in You Exceeded the ₱3 Million VAT Threshold Mid-Year — What Do You File Now?. The RDO then issues a revised Certificate of Registration showing VAT as an active tax type, with an effectivity date that governs everything downstream — invoicing, output VAT, input VAT, and, for this post’s purposes, where the RELIEF SLSP cutoff falls.

Revenue Regulations No. 1-2012 is the regulation that makes RELIEF SLSP universal for every VAT-registered taxpayer once that status exists, regardless of transaction size. Its own title, as indexed by the Supreme Court E-Library and reproduced in contemporaneous tax-alert copies of the regulation, states the change directly:

“REVENUE REGULATIONS NO. 1-2012 - REQUIRING THE MANDATORY SUBMISSION OF QUARTERLY SUMMARY LIST OF SALES AND PURCHASES (SLSP) BY ALL VAT REGISTERED TAXPAYER THEREBY AMENDING SECTION 4.114-3 OF REVENUE REGULATIONS NO. 16-2005, AS AMENDED”

That title names the trigger precisely: being a VAT-registered taxpayer. A business is only that taxpayer from its effectivity date forward, which is why the RELIEF SLSP obligation itself can only reach back that far and no further.

A worked example: a hardware retailer’s straddling third quarter #

Mariel’s Hardware Supply, a sole proprietorship retailer that had been filing BIR Form 2551Q as a percentage taxpayer, crosses ₱3,000,000 in cumulative trailing-12-month gross sales on July 18, 2026. Under NIRC Section 236(G), the owner files BIR Form 1905 by the end of August (30 days after the July 31 month-end). The RDO processes the update and issues a revised Certificate of Registration with a VAT effectivity date of September 1, 2026 — a common practical outcome, since RDOs typically set effectivity at the start of the month following approval, though a filer should always confirm the exact date printed on their own revised COR rather than assume it.

That effectivity date splits Mariel’s third quarter of 2026 into two separate filings:

July–August (percentage tax portion): Gross sales of ₱1,850,000, taxed at the 3% percentage tax rate, for a tax due of ₱55,500, reported on BIR Form 2551Q. None of these sales, or the purchases behind them, go into a RELIEF SLSP — there isn’t one for this period, because Mariel wasn’t VAT-registered yet.

September (VAT portion): Gross sales of ₱720,000, generating output VAT of ₱86,400 (12%), against purchases of ₱410,000 generating input VAT of ₱49,200 — a net VAT payable of ₱37,200 on BIR Form 2550Q. The RELIEF SLSP attached to that return covers only these September transactions:

• Summary List of Sales: a single September 10 sale of ₱150,000 to Dagohoy Construction Supply is itemized as a casual buyer under the ₱100,000 threshold rule (see Regular vs. Casual Buyer in Your RELIEF SLSP); the remaining smaller walk-in sales for the month are aggregated.
• Summary List of Purchases: the full ₱410,000 in September purchases from Bantay Steel Distributors is itemized, since the Summary List of Purchases carries no peso threshold for VAT-registered taxpayers.

Nothing from July or August — not the ₱1,850,000 in sales, not the purchases that supported them — appears anywhere in that September RELIEF SLSP. They were percentage-tax transactions, full stop, and already settled through the 2551Q filing.

What goes in the RELIEF SLSP for that first quarter, and what doesn’t? #

The dividing line is the invoice or transaction date against the effectivity date on the revised Certificate of Registration — nothing else decides which filing a transaction belongs to. Getting this wrong in either direction either understates the percentage tax paid or inflates a VAT return with sales that were never subject to VAT in the first place.

1. Pull every sales and purchase record for the full calendar quarter, not just from the date BIR Form 1905 was approved.
2. Split the records at the VAT effectivity date printed on the revised COR — before that date, percentage tax; on or after it, VAT.
3. Report the pre-effectivity transactions on BIR Form 2551Q, with no RELIEF SLSP attachment.
4. Report the post-effectivity transactions on BIR Form 2550Q, applying the regular-buyer and casual-buyer itemization rules to build the RELIEF SLSP.
5. Keep both source files — the percentage-tax period’s records and the VAT period’s records — in case either return is later questioned, since they’re reconciled separately, not as one blended dataset.

How does this differ from the reverse situation — canceling VAT registration mid-quarter? #

The mechanics mirror each other exactly, just running in opposite directions. Do You Still File RELIEF SLSP for the Quarter You Cancel Your VAT Registration? covers a taxpayer whose VAT registration ends partway through a quarter, where the RELIEF SLSP obligation stops at the cancellation date and the remaining days revert to percentage tax. Becoming VAT-registered mid-quarter is the same split, flipped: the RELIEF SLSP obligation starts partway through, rather than ending. In both cases, the effectivity or cancellation date on the Certificate of Registration — not the calendar quarter’s boundaries — decides where one filing stops and the other begins.

Frequently asked questions #

Does RELIEF SLSP cover transactions from before my VAT effectivity date? #

No. RELIEF SLSP is strictly a VAT compliance filing, attached to BIR Form 2550Q, and only lists transactions that happened on or after the VAT effectivity date stated on your updated Certificate of Registration. Sales and purchases from before that date were made while you were a percentage taxpayer and belong on BIR Form 2551Q instead, not in the DAT file.

What form do I file for the part of the quarter before I became VAT-registered? #

The percentage-tax portion of a straddling quarter is reported on BIR Form 2551Q, the quarterly percentage tax return, covering only the days before your VAT effectivity date. The VAT portion, from the effectivity date through the end of the quarter, is reported separately on BIR Form 2550Q with RELIEF SLSP attached.

Does the regular-buyer and casual-buyer threshold still apply if my VAT period only covers part of a quarter? #

Yes, unchanged. The ₱100,000 casual-buyer threshold and the six-transaction regular-buyer count under RMO No. 4-2003 apply per transaction and per buyer relationship, not pro-rated for a shorter reporting window. A single transaction of ₱100,000 or more during even a two-week VAT period still has to be itemized.

What happens to a transaction dated right on my VAT effectivity date? #

Use the effectivity date on your updated Certificate of Registration as the dividing line. A transaction dated on or after that date is treated as occurring during your VAT period and belongs in BIR Form 2550Q and RELIEF SLSP; a transaction dated before it belongs in the final BIR Form 2551Q covering your percentage-tax days.

Is this the same issue as canceling VAT registration mid-quarter? #

No, it’s the mirror-image situation. Canceling VAT registration mid-quarter means a taxpayer’s RELIEF SLSP obligation ends partway through a quarter and the remaining days revert to percentage tax; becoming VAT-registered mid-quarter means the RELIEF SLSP obligation starts partway through a quarter. Both split the same calendar quarter into a percentage-tax portion and a VAT portion, just in opposite directions.

Summary #

The quarter a business crosses into VAT registration is never one uniform RELIEF SLSP filing — it’s two separate returns divided by the VAT effectivity date on the revised Certificate of Registration: a BIR Form 2551Q for the percentage-tax days with no SLSP attached, and a BIR Form 2550Q for the VAT days with a RELIEF SLSP that itemizes only transactions dated on or after that effectivity date. Mariel’s Hardware Supply’s worked example shows why blending July and August sales into a September RELIEF SLSP would overstate VAT liability on transactions that were never VAT transactions to begin with. Get the effectivity date right first, and the rest of the split follows from rules this site already covers in full: who must file RELIEF SLSP, the regular-vs-casual buyer threshold, and the mirror-image cancellation scenario.