Construction Soft Costs 101: How Subs Can Factor Them Into Their Expenses

Published: October 07, 2021
Read time: 3 minutes

To accurately estimate and plan for a construction project, a subcontractor’s budget must incorporate both construction soft costs and hard costs. Soft costs can represent a significant portion of construction costs, so it’s essential that you understand what they are and how they factor into your projects. 

What are Soft Costs in Construction?  

Construction soft costs are expenses that aren’t directly tied to the construction of a building or project. These expenses are often related to non-tangible items like inspections, design work, real estate fees, and taxes. 

Soft costs can vary widely by project and location, and they can be incurred at any point of the construction timeline, from pre-construction to post-construction.

Hard vs. Soft Costs 

Hard costs represent the actual cost of materials, labor, and equipment that go into constructing a project. Compared to construction soft costs, hard costs are often tangible and more easily quantifiable. Hard costs can usually be accurately calculated once plans and specs are completed. Soft costs, on the other hand, are harder to estimate because expenses like service fees can fluctuate. 

construction estimating

Examples of Soft Costs 

There are many different types of soft costs in construction. Some are fixed costs, while others vary based on the project. 

Here are some of the more common soft costs in construction: 

  • Architectural and design fees: This can include costs for feasibility studies, design work, interior design consultants, and more.
  • Inspection fees: This includes costs related to building inspections and permitting costs.
  • Advertising and marketing: Projects can also incur costs for brochures, marketing campaigns, and open houses.
  • Land and real estate costs: This may include fees for appraisals, assessments, and land surveys, as well as costs associated with land acquisition.
  • Equipment, rentals, and tools: While construction equipment is typically a hard cost, some expenses can be considered soft costs if they are not directly related to the final project delivery, such as office equipment or radio communication tools.
  • Loan interest, accounting, and insurance fees: During the project, you can also incur soft costs including bank transaction fees, costs for timekeeping and accounting software, and professional liability insurance premiums.
  • Taxes: Taxes on a project assessed by local and state agencies are considered soft costs.   

Additional soft costs can include fees related to project management, surveys, consultants (health and safety consultants, testing consultants, etc.), and other professional services. 

What Percentage of Construction Cost is Soft Cost?

Soft costs generally account for about 30% of project costs. However, this number can vary widely — between 25% and 75% — depending on the specific project and the type of construction you’re performing. Soft costs generally increase as on more complex projects, as you will likely need to involve a larger variety of inspections and professional services. 

Are Soft Costs Deductible?

Because soft costs can easily exceed tens of thousands of dollars, it’s important for construction contractors to understand the tax implications of these expenditures. Because soft costs can vary so widely, tax guidelines can be complex. For example, some soft costs may be deductible as a business expense.

On the other hand, soft costs may also have financial benefits. For instance, some costs associated with LEED certifications (Leadership in Energy & Environmental Design) can be considered soft costs, and LEED certifications can offer tax credits. 

While soft costs may not be directly related to the construction of a project, they are a necessary part of your budget. Understanding what they are and how to incorporate them into your costs can help ensure your project plan is accurate and reliable.  


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Jesse Weissburg CCO of Billd

Jesse Weissburg is an accomplished business development leader with experience across a variety of industries — including finance, real estate development, construction and renewable energy. With Billd, he uses his experience and knowledge to help contractors grow their businesses by fixing the broken payment cycle in the construction industry.