Does Electing OSD Forfeit a NOLCO Carried Over From an Itemized-Deduction Year?
Electing the Optional Standard Deduction (OSD) for a given taxable year blocks any NOLCO deduction in that specific year, because OSD stands in lieu of the itemized deductions that include Net Operating Loss Carry-Over (NOLCO) — but it does not, by itself, wipe out the remaining balance. The 3-year carry-over clock under NIRC Section 34(D)(3) keeps running during an OSD year exactly as it does in an itemized year. The balance is forfeited for good only if the 3-year window closes before a later itemized-deduction year absorbs it — which means staying on OSD for the entire remaining window is what actually destroys the deduction, not the first OSD election alone.
Track Every NOLCO Year and Deduction Method Before a Balance Expires FREE →Why OSD blocks NOLCO in the year it’s elected #
The Optional Standard Deduction replaces a specific, named list of itemized deductions for the year it is elected, and NOLCO sits inside that list — so there is no separate line to claim it on an OSD return, regardless of how much unused balance the taxpayer is carrying. This isn’t a quirk specific to NOLCO; it’s how OSD is defined to work for every deduction it covers.
NIRC Section 34(L), as amended by Republic Act No. 9504, frames OSD as a substitute for the deductions that come before it in the same section:
“In lieu of the deductions allowed under the preceding Subsections, an individual subject to tax under Section 24 … may elect a standard deduction in an amount not exceeding forty percent (40%) of his gross sales or gross receipts … In the case of a corporation subject to tax under Section 27(A) … it may elect a standard deduction in an amount not exceeding forty percent (40%) of its gross income.”
Revenue Regulations (RR) No. 16-2008, the BIR’s implementing regulation for that 40% OSD, spells out exactly which “preceding Subsections” it replaces. Section 2 of RR No. 16-2008 states that qualified taxpayers:
“may be allowed to claim OSD in lieu of the itemized deductions (i.e. items of ordinary and necessary expenses allowed under Sections 34 (A) to (J) and (M), Section 37, other special laws, if applicable)”
NOLCO is governed by NIRC Section 34(D)(3) — inside the “34(A) to (J)” range RR No. 16-2008 names. There is no carve-out anywhere in Section 34(L) or RR No. 16-2008 that exempts NOLCO from the deductions OSD stands in lieu of. A taxpayer who signifies OSD on the year’s first quarterly return (see How to Elect the Optional Standard Deduction (OSD) on BIR Form 1701Q for the election mechanics) has, for that year, elected out of the itemized-deduction schedule NOLCO lives on — not just out of ordinary operating expenses.
Why the balance survives an OSD year instead of vanishing #
Blocking that year’s deduction is a different thing from cancelling the carry-over, and the regulation implementing NOLCO is explicit that the two are not the same event. Revenue Regulations No. 14-2001, the BIR’s implementing regulation for the standard 3-year NOLCO carry-over, addresses this OSD interaction directly rather than leaving it to inference from the general “in lieu of” language in RR No. 16-2008.
Secondary coverage summarizing RR No. 14-2001’s operative text states the rule this way:
a taxpayer who claims the optional standard deduction shall not simultaneously claim deduction of the NOLCO, and the three-year reglementary period on the carry-over of NOLCO shall continue to run notwithstanding the fact that the taxpayer availed of the OSD during the said period
— as summarized from Revenue Regulations No. 14-2001 in secondary coverage of the regulation’s operative text; this site could not independently retrieve a clean, directly quotable copy of the regulation’s PDF to pin down the exact subsection number, so treat the quoted sentence above as a secondary-source rendering of the rule rather than a primary-source pull.
Two separate effects follow from that single rule, and conflating them is the exact mistake this article exists to head off:
- The deduction is blocked for that year only. No NOLCO line appears on an OSD return for any year OSD is elected, no matter the balance.
- The clock does not pause, stop, or restart. The 3 consecutive taxable years immediately following the loss year keep counting down whether the taxpayer files itemized or OSD in any of them. An OSD year is not added back to the window, and it is not treated as a year the carry-over “skipped.” It is simply a year the window ran through without the balance being used.
The same non-pausing logic already appears on this site’s companion explainer, What Is NOLCO and How Does the 3-Year Carry-Over Actually Work?, which covers the standing 3-year mechanics and ownership-change forfeiture rule this article builds on. This post narrows in specifically on the OSD interaction and walks it through more than one carry-over year, since a single-OSD-year example can make the rule look more final than it actually is.
Worked example: a ₱300,000 NOLCO carried through two OSD years #
Consider Mariel Santos, a fictional sole proprietor running a wholesale distribution business, who posts a ₱300,000 net operating loss in taxable year 2024 while filing on the itemized-deduction method. Under Section 34(D)(3), that loss is available as a deduction only in the 3 consecutive taxable years immediately following 2024 — taxable years 2025, 2026, and 2027 — after which any unused balance expires outright.
Santos elects OSD for both 2025 and 2026, planning to simplify her bookkeeping during a period of lower sales volume, and only reconsiders her deduction method for 2027.
| Taxable year | Deduction method | NOLCO available going in | NOLCO applied | NOLCO balance remaining | Carry-over clock |
|---|---|---|---|---|---|
| 2024 (loss year) | Itemized | — | — | ₱300,000 | Loss incurred; 3-year window opens |
| 2025 | OSD elected | ₱300,000 | ₱0 (blocked by OSD) | ₱300,000 | Year 1 of 3 elapses, unused |
| 2026 | OSD elected | ₱300,000 | ₱0 (blocked by OSD) | ₱300,000 | Year 2 of 3 elapses, unused |
| 2027 | Scenario A: Itemized | ₱300,000 | Up to ₱300,000, capped at 2027 taxable income before NOLCO | Any excess over 2027 income before NOLCO expires | Year 3 of 3 — final eligible year |
| 2027 | Scenario B: OSD elected again | ₱300,000 | ₱0 (blocked by OSD) | ₱0 — entire balance expires | Window closes with nothing ever applied |
Two outcomes branch from the same ₱300,000 balance, and the difference is entirely what Santos does in 2027, the last year the window is open:
- Scenario A — Santos returns to itemized deductions in 2027. If her 2027 taxable income before NOLCO is ₱400,000, she applies the full ₱300,000, cutting taxable income to ₱100,000 before any balance expires. If 2027 income before NOLCO is only ₱180,000 instead, she can only absorb ₱180,000 of the balance against that income — NOLCO cannot create or increase a loss — and the remaining ₱120,000 expires unused once 2027 closes, since NIRC Section 34(D)(3) grants no further extension past the third consecutive year.
- Scenario B — Santos elects OSD a third straight year. The ₱300,000 balance is blocked in 2025, blocked again in 2026, and blocked a third time in 2027 — the final year the 3-year window covers. Because no itemized year ever occurred inside the window, the entire ₱300,000 expires completely unused once 2027 closes. The loss is gone for good, not because electing OSD in 2025 “forfeited” it on the spot, but because three consecutive OSD elections used up the entire carry-over period without ever absorbing the balance.
The practical takeaway: an OSD election in any single year inside the carry-over window is reversible in its effect on NOLCO, as long as at least one remaining year in that window is filed on the itemized method with enough taxable income to absorb what’s left. What is not reversible is running out of eligible years — so a taxpayer carrying a meaningful NOLCO balance should treat each year’s OSD-versus-itemized decision as a year spent against a fixed, non-extendable clock, not as an independent annual choice.
Frequently asked questions #
Can I claim NOLCO in a year I elected the Optional Standard Deduction? #
No. The Optional Standard Deduction (OSD) is taken in lieu of the itemized deductions under NIRC Section 34(A) to (J) and (M), and NOLCO is an itemized deduction under Section 34(D)(3) — squarely inside that range. A taxpayer who elects OSD for a given taxable year cannot claim any NOLCO deduction in that same year, no matter how much unused balance remains.
Does electing OSD for one year permanently cancel my entire NOLCO balance? #
No, not by itself. Electing OSD only blocks the deduction for that specific taxable year; it does not cancel the carry-over balance outright. The 3-year carry-over period keeps running during an OSD year exactly as it would in an itemized year, so the balance survives into the remaining years of the window and can still be used in any of those years the taxpayer files on the itemized method. The balance is lost for good only if the 3-year window closes before an itemized year absorbs it.
If I use OSD for 2 of my 3 NOLCO carry-over years, can I still use it in the third year? #
Yes, as long as that third year falls within the original 3-year window counted from the loss year and the taxpayer files that return on the itemized-deduction method. The NOLCO balance can be applied against taxable income before NOLCO in that final eligible year, subject to the amount of income available to absorb it. Any portion still unused after that third year expires and cannot be carried further, regardless of the deduction method chosen afterward.
What happens to NOLCO if I use OSD for all 3 of the carry-over years? #
The entire NOLCO balance expires unused. Because OSD blocks the NOLCO deduction in every one of the 3 consecutive taxable years immediately following the loss year, and NIRC Section 34(D)(3) does not extend the carry-over period for years in which the deduction could not be taken, a taxpayer who stays on OSD for the whole window loses the balance completely once the third year closes — even though it was never actually applied against any income.
Does the same OSD-blocks-NOLCO rule apply to both individuals and corporations? #
Yes. Revenue Regulations No. 16-2008, which implements the Optional Standard Deduction for both individuals and corporations under NIRC Section 34(L) as amended by Republic Act No. 9504, describes OSD as taken in lieu of the same range of itemized deductions — Sections 34(A) to (J) and (M) — for both taxpayer types. The NOLCO-forfeiture mechanics described in this article apply the same way whether the taxpayer is a sole proprietor or a domestic corporation.
Summary #
Electing OSD and losing a NOLCO balance are related but distinct events. OSD blocks that year’s NOLCO deduction immediately and automatically, because NOLCO under NIRC Section 34(D)(3) falls inside the range of itemized deductions RR No. 16-2008 says OSD replaces — but the 3-year carry-over clock under Section 34(D)(3) and RR No. 14-2001 keeps running regardless of which method the taxpayer files under in any given year. A NOLCO balance is only truly forfeited when the 3-year window closes without a single itemized-deduction year inside it having enough taxable income to absorb the loss. A taxpayer weighing OSD in a year with an open NOLCO balance should count how many eligible carry-over years remain before deciding, since an OSD election late in the window is far riskier to a balance than one made early, while a full year or two of future itemized filing is still available to absorb it. For the standing 3-year mechanics and the ownership-change rule that can forfeit NOLCO outright, see What Is NOLCO and How Does the 3-Year Carry-Over Actually Work? NIRC Section 34(D)(3) Explained; for the pandemic-era 5-year extension that applies only to 2020 and 2021 losses, see RMC No. 81-2026: How to Claim 2020-2021 NOLCO That eBIRForms and eFPS Won’t Accept; and for the mechanics of making the OSD election itself, see How to Elect the Optional Standard Deduction (OSD) on BIR Form 1701Q.
Sources #
Primary sources
- BIR — National Internal Revenue Code, Section 34(D)(3) (Net Operating Loss Carry-Over) and Section 34(L) (Optional Standard Deduction, as amended by Republic Act No. 9504), as referenced throughout the secondary sources cited below.
- Revenue Regulations No. 16-2008 (implementing NIRC Section 34(L) as amended by RA No. 9504), Section 2 — “in lieu of the itemized deductions” clause quoted above, via a hosted copy of the regulation’s text at philtax.blogspot.com.
Secondary sources
- jur.ph — Implementing Optional Standard Deduction Tax Code Amendment, used to corroborate RR No. 16-2008’s scope and the Section 34(L) “preceding Subsections” framing.
- batasnatin.com — Deductions: Itemized vs Optional Standard Deduction (Sec. 34[L]) and OSD Election Irrevocability + Mid-Year Switching Prohibited (R.R. 16-2008), used to corroborate OSD election mechanics referenced in this article.
- Secondary coverage summarizing Revenue Regulations No. 14-2001’s NOLCO/OSD interaction clause and the non-pausing 3-year carry-over rule, corroborating the same rule already relied on in this site’s companion post on the standard 3-year NOLCO carry-over (see Sources there for the underlying citations to CPA Davao and MTF Counsel).