Tax Guide

Cost of Goods Sold Under 280E: A Pennsylvania Operator's Guide

Because IRC 280E disallows most ordinary deductions, cost of goods sold becomes the single most important number on a Pennsylvania cannabis tax return, and building it correctly requires a documented, defensible methodology.

13 minute read

Why Cost of Goods Sold Matters More in Cannabis

In most industries, the distinction between cost of goods sold and operating expense is a matter of financial statement presentation with limited tax consequence. In cannabis, that distinction determines whether a dollar of spending is deductible at all under federal law. A Pennsylvania dispensary or grower/processor that under-allocates costs into inventory pays materially more federal tax than one with an equally profitable operation but a stronger cost accounting methodology.

This dynamic means cost accounting is not a back-office bookkeeping function in cannabis, it is a core tax strategy that deserves the same attention as any other major business decision. Operators in Philadelphia and Scranton who treat COGS calculation as an afterthought at tax time consistently leave deductions on the table that a proactive cost accounting process would have captured throughout the year.

Section 471 and 263A Inventory Rules

IRC Section 471 governs how inventory costs are determined, and Section 263A's uniform capitalization rules require certain indirect costs to be included in inventory even though 280E disallows deducting those same costs as period expenses for non-COGS purposes. For cannabis businesses, courts and IRS guidance have generally held that the Section 471 methodology in effect prior to the Tax Cuts and Jobs Act changes applies, meaning resellers can only capitalize the invoice cost and transportation of purchased inventory while producers can capitalize a broader set of production costs.

This distinction is critical for Pennsylvania operators structured with separate cultivation and retail entities. A grower/processor generally has more costs eligible for capitalization, including direct labor, cultivation supplies, and a share of facility overhead tied to production, while a standalone dispensary is limited primarily to the cost of product purchased and the direct cost of bringing it to the point of sale.

  • Producers may capitalize direct labor, materials, and a share of indirect production costs
  • Resellers are generally limited to invoice cost plus transportation-in
  • Facility costs must be allocated based on a reasonable, documented driver
  • Methodology must be applied consistently from year to year

Building a Defensible Allocation Methodology

A defensible COGS methodology starts with a written cost accounting policy that identifies each cost category, explains why it qualifies for capitalization, and documents the allocation driver used to assign shared costs. For an Erie cultivation facility, this might mean allocating utility costs based on metered square footage dedicated to canopy versus administrative space, supported by facility diagrams and utility bills that tie back to the allocation percentage used.

We build these policies alongside time studies for labor that crosses between production and non-production activities, since payroll is often the largest cost category subject to allocation. A cultivation supervisor who splits time between plant care and administrative meetings needs a documented basis for the percentage of salary capitalized into inventory, and that basis should be reviewed periodically as job responsibilities shift.

Common COGS Mistakes Pennsylvania Operators Make

The most common mistake we see among Pennsylvania operators is treating COGS as a flat percentage of revenue carried forward year to year without revisiting the underlying methodology as the business changes. A dispensary that adds a second Reading location with different lease economics needs a fresh allocation study, not a copy of last year's percentage applied to a larger revenue base.

Another frequent error is failing to distinguish between costs that support all locations, such as a centralized purchasing function, and costs specific to a single site. Applying a single blended allocation across a multi-location operator in York and Lancaster can either understate or overstate COGS at individual sites, distorting both site-level profitability reporting and the overall federal tax position.

  • Rolling forward a stale COGS percentage without revisiting the methodology
  • Blending multi-location costs without site-specific allocation support
  • Missing documentation for labor time studies used in allocation
  • Inconsistent treatment of destroyed or unsalable inventory

Documentation That Survives an IRS Examination

Every allocation percentage in a defensible COGS calculation should trace back to source documentation: time studies, utility bills, square footage diagrams, and vendor invoices. We assemble these into an annual documentation package that a Pennsylvania operator can produce immediately if the IRS opens an examination, rather than scrambling to reconstruct support months or years after the return was filed.

This package also serves the business during ownership transitions, capital raises, or permit renewals, since lenders and investors increasingly expect to see a documented cost accounting policy before committing capital to a Pennsylvania cannabis operator. A well-organized COGS file signals financial discipline that extends well beyond the tax return itself.

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Turn this guide into a working set of books

Reading about 280E is one thing. Having a chart of accounts, inventory policy and workpapers that survive an examination is another. We build the second one.