Article Authors
When manufacturers take on major capital projects, such as building out a facility, reconfiguring a warehouse, or constructing a long-term asset, the financial team is focused on tracking direct costs. Materials, labor, contractor fees, equipment. Those get captured but what often gets missed is the interest.
If your company is carrying debt while a long-term asset is being built or improved, the interest incurred during that construction period is part of the cost of that asset. Under GAAP, it should be capitalized, meaning added to the asset’s cost basis and depreciated over its useful life, rather than expensed as it’s paid.
This matters because it changes how your financials look during the project, how the asset is valued on your balance sheet, and how costs are matched to the revenue that asset eventually generates.
When Does Interest Capitalization Apply?
Under GAAP (ASC 835-20), interest capitalization is required when the benefit of capturing that information outweighs the cost of calculating it. In practice, this means three conditions need to be present simultaneously:
- Expenditures for the asset have been made
- Activities necessary to get the asset ready for its intended use are underway
- Your company is incurring interest costs on some form of financing
As long as all three conditions are active, capitalization continues. Note, however, that internal delays, such as pauses in construction due to scheduling or resource issues, do not extend the capitalization window. Interest incurred during those pauses should be expensed in the period it occurs. Once the asset is complete and placed in service, interest accumulation stops.
What Types of Projects Qualify?
The short answer: discrete, long-term projects. Think facility construction, major build-outs, significant equipment installations where the asset is being created rather than purchased ready-to-use.
What doesn’t qualify: inventories produced in large quantities on a routine, repetitive basis. However, inventory built as a specific project rather than as part of standard production runs can qualify for interest capitalization.
If you’re unsure whether a current project meets the threshold, that’s a good conversation to have with your accountant before the project progresses further.
Why This Approach Benefits Your Business
Capitalizing interest gives you a more accurate picture of what an asset actually costs to bring into service. Rather than recognizing higher interest expense on your income statement during the construction period, those costs are absorbed into the asset’s value and recognized over time through depreciation.
The result is better period-to-period comparability in your financials. Costs are matched to the periods when the asset is actually generating revenue, which gives leadership a cleaner view of operational performance during and after a major project.
A Note on Book vs. Tax Treatment
It’s worth noting that how interest costs are treated for financial reporting purposes (book) may differ from how they’re treated for tax purposes. Depending on your company’s situation, elections in place, and whether certain exemptions apply, the capitalization approach used for GAAP reporting may not carry over directly to your tax return. If you’re in the middle of a significant project, discuss both the book and tax implications with your advisor so there are no surprises at year-end.
When Projects Get Complex
Manufacturers running multiple capital projects simultaneously will face additional complexity in allocating interest costs across those assets. That’s typically the point where the calculation benefits most from professional oversight. Handling this correctly ensures your financials reflect accurate asset costs and that depreciation flows through your statements the way it should.
To discuss how interest capitalization applies to your current or planned projects, contact HBK Manufacturing Solutions at 330-758-8613 or manufacturing@hbkcpa.com.
"*" indicates required fields








