Back Charges in Construction | Overview & FAQs

What GCs, subs & suppliers need to know about back charges in construction, how they work, and what to do about them.

What are back charges in construction?

Back charges are billings for expenses incurred in a previous pay cycle. A back charge is also known as a chargeback, a right to set off, or an offset for unexpected costs.

Why back charges exist

Construction projects are complicated and complex, and disputes over the quality of work are common. A job is rarely completed without the general contractor running into some kind of issue with subcontractors or a vendor.

If the GC or property owner discovers a defect or problem, they may include a back charge on the current or subsequent billing cycle. The back charge effectively deducts money from the current payment to cover the costs of fixing the problem or issue.

Types of back charges

Construction back charges can be incurred for a variety of reasons, including:

  • Defective work
  • Defective materials
  • Job site damages
  • Clean up
  • Equipment use

Back charges are not statutory, or provided by law. Instead, they are generally rights given to the GC or property owner through the construction contract. This means they are governed by the terms set forth in a contract (if they’re even included in the contract in the first place). Many subcontracts allow for some sort of back charges, though many do not.

Example of back charges

As an example, a subcontractor agrees to perform work for a GC at a price of $100,000. At any point – whether it’s during or after work – the GC and the project owner could contend that $20,000 of the sub’s work is incorrect or incomplete. This means that the sub won’t receive their full $100,000. Instead, they’d earn $80,000 because the $20,000 back change is subtracted from their payment.

How to deal with back charges

Most construction disputes could be resolved by the combination of communication and documentation. Back charges work off of disputes, so it’s important for GC’s to react correctly towards subs when they do arise.

First, general contractors can try to avoid non-performing subs by using a pre-qualification phase in their hiring process. GC’s can also create a collaborative project that identifies problems early through daily reports, performance assessments, and by talking person-to-person on the job site. Before there is ever a need to use a back charge, GC and subs should communicate clearly to try to reach an understanding. If none of that works, it’s time to either supplement or terminate a non-performing sub.

If a subcontractor or supplier disagrees with a back charge, they have a few options. If you agree on the basis of the back charge, but not the cost, the first step would be to negotiate directly with the GC.

If the back charge was fraudulent or not provided for in the contract, you may be able to file a mechanics lien claim for the unpaid amount.

Disruption Claims

Disruption is when the contractor or subcontractor has to perform differently or less efficiently than originally planned. These types of claims are usually based on additional costs due to increased labor and equipment and not because of extra time spent at the jobsite. What led to a sub’s back charges could in turn cause a disruption claim.

For instance, if a sub damages equipment or requires the GC to bring in more equipment, these could become costs that go well beyond what was originally planned. In this case, a GC could use a disruption claim to recover damages for the loss of productivity.

Back charge abuse

Subs are constantly at risk of facing abuse of back charges from GC’s. It’s a common concern for subcontractors, especially because back charges are solely governed by contract terms. Abuse can occur when a top of chain party has arbitrarily allocated anticipated project costs to the subs without regard to their use of a particular service. Even worse, the back charges could be accruing throughout the entire project. GCs may not notify the sub until their work is complete.

In some instances, GC’s and owners can use back charges as leverage against subs to force them to perform work that is outside of the scope of work, or to make other change orders or change directives in the work.

Frequently Asked Questions about Back Charges

Back charges are common sources of contention and disputes on construction projects. Here are some commonly encountered issues and frequently asked questions about back charges in construction.

What is a back charge?

Basically, a back charge is money that’s held back or charged back to a contractor on a construction project. For more information, see What are back charges in construction?

Why do general contractors use back charges?

Back charges can be used by general contractors (GCs) to cover:
Defective Work Defective Materials Job Site Damages Clean Up Equipment Use
This all happens when GCs run into issues with subs or with vendors.
Learn more: What Causes Construction Disputes, And What Resolves Them.

How can GCs deal with underperforming subs?

Back charges are mainly used when work is incorrect or incomplete. In some cases, a subcontractor or supplier may cause so many problems that the GC doesn't want them on the job anymore.
The best solution is preventive: GCs should first begin by pre-qualifying their subs to hopefully avoid using a back charge or change orders.
However, if a sub that's already on the job is causing more problems than back charges would cover, it may be time for more significant action.
Learn more: How to deal with a non-performing subcontractor.

Are back charges possible if there's no contract?

Not typically. Back charges are not statutory (i.e. provided by law). Rather, they’re contractual rights. This means they are governed by the terms set forth in a contract. If your construction contract doesn't contain a clause that allow back charges, they may not be allowed.

Can a subcontractor file a mechanics lien on back charges?

Potentially, yes. If a subcontractor determines that a back charge was not legitimate, or disputes the amount of the back charge, then they would consider the back charge an unpaid amount. They may be able to recover payment by filing a mechanics lien for the unpaid balance.
Read more: How do I file a lien on a back charge?

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