Does the BIR's Electronic Invoicing System Replace RELIEF SLSP Filing? Not Yet

No BIR Revenue Regulation or Revenue Memorandum Circular currently exempts a taxpayer on the Electronic Invoicing System (EIS) from filing RELIEF SLSP. It’s a reasonable question to ask — EIS transmits sales data to the BIR electronically, which sounds like it should make a separate quarterly summary listing redundant — but the honest answer for 2026 is that no such exemption has been formalized, and EIS itself is still in a limited rollout.

What is the Electronic Invoicing System, and who’s actually on it? #

The Electronic Invoicing System (EIS) is the BIR’s platform for receiving sales data electronically, in real time or within a few days of each transaction, implementing Section 237/237-A of the NIRC as amended by the CREATE MORE Act (RA No. 12066). RR No. 11-2025 named the initial mandatory group: large taxpayers, e-commerce businesses, exporters, and taxpayers using a Computerized Accounting System (CAS) or Computerized Books of Accounts (CBA). Micro taxpayers are exempt from the mandate but can opt in.

The original compliance deadline — March 14, 2026 — was extended by RR No. 26-2025 to December 31, 2026. That means, as of mid-2026, most nominally covered taxpayers are still integrating with EIS rather than actively transmitting sales data under a live mandatory obligation. See RR No. 26-2025: BIR Extends E-Invoicing Compliance Deadline for the full rollout timeline.

So does EIS replace RELIEF SLSP? #

Not currently, and not automatically once it’s live either — at least not without a specific BIR issuance saying so. The logic behind the question makes sense: RELIEF SLSP exists to give the BIR a quarterly summary of a VAT-registered taxpayer’s sales and purchases, and EIS is designed to deliver essentially the same underlying transaction data continuously instead of quarterly. In principle, once EIS is fully live for a given taxpayer, a separate quarterly SLSP filing duplicates data the BIR is already receiving.

In practice, no RR or RMC has formally superseded the SLSP requirement for EIS-covered taxpayers. The clearest statement of this gap, from tax practitioner commentary rather than an official BIR issuance, puts it directly:

“Those using the EIS will no longer need to submit the Summary List of Sales (SLS) to the BIR, since the BIR is getting the granular data continuously. However, this only applies to EIS users. Until the system is live and an RMC formally supersedes e-mail submission, taxpayers must continue the present Zero SLSP e-mail routine.”

That’s a practitioner’s forward-looking read of where the system should end up, not a citation to an existing RR or RMC — and it’s worth being precise about that distinction, because assuming an exemption exists before the BIR has actually granted one risks a real compliance gap. As of 2026, nothing in What Is the BIR eSubmission System? or Who Must File RELIEF SLSP? has been amended to carve out EIS transmitters.

What should you actually do if you’re EIS-covered? #

Treat EIS integration and RELIEF SLSP filing as two separate, parallel obligations for now, not a sequence where one replaces the other:

1. Keep filing RELIEF SLSP on the normal quarterly schedule — see RELIEF SLSP Deadlines and Penalties — regardless of your EIS integration status.
2. Track your EIS mandatory-compliance timeline separately, since the December 31, 2026 deadline under RR No. 26-2025 applies to your invoicing and sales-data transmission obligation, not to your SLSP filing obligation.
3. Watch for a specific BIR circular addressing the SLSP-EIS relationship directly, rather than assuming an exemption based on the general logic that EIS should eventually make SLSP redundant.

Why this matters for reconciliation, not just filing #

Even leaving the exemption question aside, a taxpayer running both systems in parallel — EIS transmission and quarterly SLSP — has a practical reconciliation task: making sure the sales figures reported through each channel actually match. A mismatch between EIS-transmitted data and a quarterly SLSP total is a new kind of discrepancy the BIR’s systems can flag automatically, on top of the more familiar RELIEF SLSP vs BIR Form 2550Q reconciliation that VAT-registered taxpayers already have to manage.

Summary #

EIS and RELIEF SLSP currently run as two separate obligations — no RR or RMC has exempted EIS-covered taxpayers from quarterly SLSP filing, and EIS itself isn’t yet mandatory for most covered taxpayers, with the compliance deadline extended to December 31, 2026. Until the BIR issues an explicit circular saying otherwise, keep filing RELIEF SLSP on schedule regardless of where you stand on EIS integration.