Regular vs. Casual Buyer in Your RELIEF SLSP: The ₱100,000 Reporting Threshold Explained

A relief dat file does not require every buyer to be listed by name. Under Revenue Memorandum Order (RMO) No. 4-2003, a VAT-registered seller must itemize sales per buyer only for regular buyers/customers — those with at least six transactions in the current or prior year, regardless of amount — and casual buyers/customers, those with a single transaction of ₱100,000 or more. Everyone else can be aggregated.

This distinction sits inside the Summary List of Sales half of RELIEF SLSP and matters most to businesses with many small transactions — retailers, hardware stores, pharmacies — where itemizing every walk-in buyer would be both pointless and unworkable. For the broader filing obligation, see Who Must File RELIEF SLSP?; for how the SLSP totals tie back to the quarterly VAT return, see RELIEF SLSP vs BIR Form 2550Q.

What does RMO No. 4-2003 actually say about regular and casual buyers? #

RMO No. 4-2003 — “Guidelines and Procedures on the Processing of Quarterly Summary Lists of Sales and Purchases and of the Imposition of Penalties Therefor as Provided under Revenue Regulations No. 8-2002” — defines two categories of buyer that must be itemized in the Summary List of Sales, by name and by amount, rather than lumped together. Everything else about SLSP reporting hinges on getting these two definitions right, because they decide which rows in your DAT file need a counterparty’s TIN and name attached, and which can simply be summed.

The order defines a regular buyer/customer this way:

“Regular buyers/customers shall refer to buyers/customers engaged in business or exercise of profession with whom the taxpayer had transacted at least six (6) transactions in the previous year or current year, regardless of amount of sale per transaction.”

And it defines a casual buyer/customer as one who falls outside that definition but crosses a separate peso threshold:

“Casual buyers/customers refer to buyers/customers who are engaged in business or exercise of profession with individual purchase/transaction amounting to one hundred thousand pesos (P100,000) or more but did not qualify as regular buyers/customers.”

Both definitions come from RMO No. 4-2003, as issued under the framework of Revenue Regulations (RR) No. 8-2002 governing the Summary Lists of Sales and Purchases. The BIR hosts its issuances at bir.gov.ph; the order’s full text is also archived at lawphil.net and indexed by the Supreme Court E-Library.

Regular vs. casual vs. below-threshold buyer: what’s the difference? #

Three buyer categories exist for Summary List of Sales purposes, and only two of them require itemizing a buyer’s name and running total in your relief dat file. The table below lays out the trigger for each and the reporting treatment RMO No. 4-2003 assigns to it.

The practical effect: a buyer only escapes individual listing if they fail both tests — not a repeat customer, and no single purchase from them ever hits six figures. Cross either line and that buyer’s sales belong on their own row.

Why does this matter for a high-volume, low-value retailer? #

A retailer that sells mostly to walk-in members of the general public, with each sale well under ₱100,000 and no repeat-customer relationship, does not have to name every single buyer in its relief dat file. This is the practical relief the rule is named for: without it, a hardware store, pharmacy, or sari-sari-style retailer with hundreds of small daily transactions would need a named line for every customer who ever walked in — an unworkable volume of counterparty data for transactions that individually pose little risk of VAT under-reporting.

Instead, RMO No. 4-2003 lets those smaller, one-off sales be folded into a single aggregate total, while reserving itemized, named reporting for the two buyer types the BIR actually wants to cross-match against a counterparty’s own return: repeat business relationships (regular buyers) and any single transaction large enough to matter on its own (casual buyers at ₱100,000 and up). This keeps the RELIEF cross-matching program focused on the transactions most likely to reveal a discrepancy, without burying every filer in walk-in customer detail.

Worked example: a hardware store’s Q1 Summary List of Sales #

A hardware store’s quarterly sales naturally split into the three buyer categories above, and each one gets a different row treatment in the Summary List of Sales. Consider a fictional VAT-registered hardware store preparing its Q1 2026 (January–March) RELIEF SLSP:

• Three contractor-clients each placed 8–10 separate material orders during the quarter, ranging from ₱15,000 to ₱60,000 per order. Because each has at least six transactions with the store in the current year, all three are regular buyers — every one of their transactions is itemized under their name and TIN, even though no single order reached ₱100,000.
• One homeowner made a single purchase of ₱150,000 in construction materials for a renovation, and had no other transactions with the store that year. That purchase alone crosses the ₱100,000 mark, making the homeowner a casual buyer for that transaction — it is itemized by name even though it was a one-time sale.
• Several hundred walk-in customers bought paint, tools, and hardware supplies in amounts ranging from ₱200 to ₱8,000 each, with no repeat pattern and no transaction anywhere near ₱100,000. None of these buyers is regular or casual under the RMO No. 4-2003 definitions, so the store reports their combined sales as a single aggregate figure rather than itemizing each buyer.

The store’s Summary List of Sales for the quarter therefore has four itemized rows — three contractor-clients and one casual buyer — plus one aggregate row covering the walk-in volume. That is a materially shorter, more accurate relief dat file than one that tried to name every customer who paid cash for a bag of nails.

How does this fit into the DAT file and the rest of RELIEF SLSP? #

The regular/casual buyer distinction only changes which rows carry a named counterparty in the Summary List of Sales — it doesn’t change whether SLSP itself is required. Every VAT-registered taxpayer still files RELIEF SLSP each quarter regardless of buyer mix, as covered in Who Must File RELIEF SLSP?, and the totals from this list — itemized rows plus the aggregate walk-in figure — still have to reconcile against the sales reported on BIR Form 2550Q, as covered in RELIEF SLSP vs BIR Form 2550Q. Getting the buyer classification wrong shows up later as an SLSP total that doesn’t tie to the return, or as itemized rows the BIR can’t cross-match because a regular buyer was mistakenly aggregated.

Frequently asked questions #

What counts as a regular buyer/customer in RELIEF SLSP? #

Under RMO No. 4-2003, a regular buyer/customer is one engaged in business or the exercise of a profession with whom the taxpayer has transacted at least six (6) transactions in the current or preceding year, regardless of the peso amount of any individual sale. A regular buyer’s total sales must be itemized in the relief dat file even if every single transaction was small.

What counts as a casual buyer/customer in RELIEF SLSP? #

A casual buyer/customer is one who does not qualify as a regular buyer but whose individual purchase or transaction amount is ₱100,000 or more. Under RMO No. 4-2003, that single large transaction must still be itemized by buyer in the Summary List of Sales even though the relationship isn’t a repeat one.

Do I have to list every walk-in customer individually in my relief dat file? #

No, not if that customer is neither a regular buyer (six or more transactions) nor a casual buyer with a single transaction of ₱100,000 or more. Sales to such smaller, one-off buyers can be reported as an aggregate total rather than itemized line by line, which is the practical relief RMO No. 4-2003 gives to high-volume, low-value retailers.

Does the ₱100,000 casual-buyer threshold apply per transaction or per quarter? #

It applies per individual transaction amount, not a running quarterly total. A casual buyer is defined by a single purchase or transaction of ₱100,000 or more; smaller individual transactions with that same non-regular buyer do not each need to cross ₱100,000 to stay out of the itemized list, but a transaction that does cross it must be itemized on its own.

Does the six-transaction regular-buyer count reset every quarter? #

No. RMO No. 4-2003 counts transactions in the current year or the previous year, not per quarter. A buyer who reaches six transactions with the taxpayer at any point across those two years is treated as a regular buyer and must be itemized going forward, regardless of how few transactions occurred in the specific quarter being reported.

Summary #

RMO No. 4-2003 draws a narrow but consequential line in the Summary List of Sales: regular buyers (six or more transactions in the current or prior year) and casual buyers (a single transaction of ₱100,000 or more) must be itemized by name in your relief dat file, while smaller, non-repeat buyers below that threshold can be reported in aggregate. For a high-volume retailer, that aggregation is the difference between a manageable quarterly filing and an unworkable one. Once the buyer mix is classified correctly, Who Must File RELIEF SLSP? and RELIEF SLSP vs BIR Form 2550Q cover the surrounding filing obligation and reconciliation steps.