Service — Inventory Costing
Inventory records that hold up when it matters
Stock values that are documented consistently, allocated properly, and ready to stand behind — whether for a financial statement, a tax filing, or a year-end review.
Get in touch about this serviceWhat this delivers
Inventory values you can rely on for reporting and tax
Inventory is one of the more consequential figures on a balance sheet, and one of the more frequently underdocumented ones. The method used to value stock affects both the profit reported and the tax owed — which means it matters that the method is applied correctly and consistently, not just once but every time records are prepared.
This service establishes and maintains that consistency. Inventory values are calculated using a costing method suited to how your business operates, overhead is allocated appropriately, and the records are kept in a form that supports both financial reporting and tax preparation without needing to be rebuilt each time.
All stock categories covered
Raw materials, work-in-progress, and finished goods handled under the same consistent framework — not treated as separate exercises.
Overhead properly allocated
Warehouse costs, handling charges, and other relevant overhead included in inventory values where appropriate — not excluded and then questioned later.
Records maintained for both financial and tax purposes
The same underlying records support your financial statements and your tax preparation — not two separate sets of figures that then need reconciling.
Annual reconciliation support included
A dedicated session each year to reconcile physical stock counts against recorded values — so year-end figures rest on something you've actually verified.
Where things tend to come unstuck
Inventory accounting is often handled inconsistently — until a deadline makes it a problem
Many e-commerce businesses track their stock quantities carefully — they know how many units are in the warehouse, how many are in transit, how many are on order. What gets treated less carefully is the valuation side: what those units are actually worth on the balance sheet, and how that value has been calculated.
The issue isn't usually carelessness. It's that inventory costing requires methodological decisions — which costing method to apply, how to handle overhead, what to do with damaged or slow-moving stock — and those decisions aren't always made explicitly. Instead they get made implicitly, at the end of each period, in slightly different ways each time.
That inconsistency tends not to matter until it does. A tax review, an audit, a request from a lender, or a conversation with a potential investor can make an underdocumented inventory valuation suddenly more complicated than it needed to be. Getting the records in order before that point is considerably easier than doing it under pressure.
The costing approach
A method chosen for your business, applied consistently
The starting point is understanding how your inventory actually flows — what you purchase, how it's stored, whether it moves through a production or assembly stage before sale. From that, we identify the costing method that fits your situation and document the choice clearly. That same method is then applied every time inventory values are calculated, so the figures are comparable period over period.
We work through the costing options with you — FIFO, weighted average, and specific identification where applicable — and document the selected method clearly so there's no ambiguity about how figures have been arrived at.
Raw materials, work-in-progress, and finished goods each handled under the agreed framework. If your business doesn't have all three categories, the service is scoped to what's relevant to your operation.
Warehouse rent, handling costs, and other overheads that are part of bringing inventory to its current location and condition are allocated to stock values in proportion to their relevance — not excluded or grouped in ways that distort the figures.
Each year, we work through the reconciliation between physical stock counts and recorded values. Discrepancies are identified and addressed before they affect year-end figures or become a question in a tax review.
What working together looks like
Records kept in the background, ready when you need them
Most of the work in inventory accounting happens quietly — the calculations run, the records are updated, the documentation is maintained. You shouldn't need to think about it between periods. What you should have is the confidence that when you do need the figures, they're there and they're right.
The annual reconciliation session is the one point in the year where active input is needed from your side — coordinating a physical count and going through the figures together. That session is included in the service and doesn't require any accounting knowledge on your part; we work through it together.
If your accountant or tax preparer has questions about inventory methodology during a review, we can answer those directly. The documentation is there to be shared, and the rationale behind every decision is on record.
Initial review and method selection
We review how your inventory flows, what categories you hold, and what your existing records look like. The appropriate costing method is identified and documented.
Records established and maintained
Inventory values are calculated and recorded on the agreed schedule. Overhead allocation is applied and documented each period.
Annual reconciliation session
Physical stock counts are matched against recorded values. Discrepancies are explained and adjustments made with proper documentation before year-end figures are finalised.
Records available for external use
Documentation is kept in a format that can be shared with your tax preparer, auditor, or lender without needing to be reformatted or explained from scratch.
Pricing
A fixed fee covering the full scope of the service
The Inventory Valuation & Costing service is priced at a single fixed fee that covers the costing methodology setup, ongoing records maintenance, and the annual physical inventory reconciliation support session.
If your inventory situation is straightforward — finished goods only, single warehouse, one purchasing currency — the scope of work is proportionally simpler, and we'll reflect that in the initial conversation. The fixed price is our starting point; we'll confirm it covers your setup before any work begins.
Discuss this service with usFixed investment
Included in the service:
- Review of inventory structure and costing method selection
- Raw materials, WIP, and finished goods coverage
- Overhead allocation with documented rationale
- Records maintained for financial reporting and tax
- Annual physical inventory reconciliation support session
- Documentation shareable with accountants and auditors
Price confirmed before work begins based on your setup
The methodology
Consistency is what makes inventory records useful over time
Inventory valuation isn't a one-off calculation. The figures only mean something if they're produced the same way each time — same costing method, same overhead allocation approach, same treatment of partially completed goods. That's what makes period-over-period comparison reliable and what makes the records defensible if they're ever reviewed externally.
Stock categories covered
Raw materials, work-in-progress, and finished goods — each valued under the same documented framework rather than treated as separate standalone figures.
Annual reconciliation included
One dedicated session per year to work through the physical count against recorded values. Discrepancies documented and resolved before year-end figures are used.
Documented and shareable
Records maintained in a format that can be passed to your tax preparer or auditor without reformatting. The methodology is on record and can be explained if queried.
Our commitment
Records that are right, and a process you can ask questions about
If a calculation error is found — an overhead allocation applied incorrectly, a stock category valued under the wrong method — it's corrected. The commitment is that the records are accurate, not just completed.
We're also clear about what the service covers before any work starts. If your setup is more complex than a standard engagement — multiple warehouses, multiple currencies, a production process with significant WIP — that's discussed upfront rather than discovered partway through.
Calculation errors corrected at no additional charge
If something in the records is wrong, it's fixed. Scope and pricing are confirmed before work begins so there are no surprises on either side.
How to get started
Tell us about your inventory and we'll take it from there
The most useful thing to share in an initial conversation is a description of your inventory structure — what categories of stock you hold, whether you have a production or assembly stage, and what your current valuation records look like (or whether there are any). From that we can confirm the scope and give you a clear picture of how the engagement would run.
Contact us via the form or at [email protected] with a brief description of your inventory setup and what your current records look like.
We'll review what you've shared and come back with a clear description of how the service would be structured for your situation — and confirm the fixed fee applies as stated.
Once agreed, we carry out the initial review and method selection, then the ongoing records maintenance begins on the schedule that suits your reporting cycle.
Inventory records that are ready when you need them
If your inventory valuation is currently handled inconsistently — or not documented clearly enough to share with an accountant or auditor — this is worth a conversation. No commitment required to ask.
Contact BrevmistOther services
Explore the full range
Service 01
E-Commerce Financial Management
Monthly revenue tracking across all channels, payment reconciliation, and a consolidated monthly financial report — from $520/month.
Service 02
Marketplace Fee Analysis
Quarterly breakdown of all platform fees — referral, fulfillment, advertising, subscriptions — mapped to revenue by channel with trend comparisons.