Understanding Single and Aggregate Surety Bond Limits

Author, Matt Gaynor, Director of Surety, Rancho Mesa Insurance Services, Inc.

When we work with the bonding carriers on surety credit programs for our contractor customers, we traditionally put into place single and aggregate bond limits. This provides our contractor clients certain parameters when they are considering a maximum project size for bonding purposes.

The single limit is a guide the contractor can use on a per project basis as they consider various projects to bid or negotiate.

The aggregate limit is the total of all current projects using a “cost to complete” calculation. The cost to complete would be the estimated costs on a project (less) the costs to date. As an example, a contractor may have a $5,000,000 single / $20,000,000 aggregate bonding program.

A few important points to consider:

  • The limits are not set in stone. This is important to understand. The bond company will often raise the single and aggregate limit if the right type of project presents itself.

  • We include the bonding limits when we prepare a bondability letter for our client. If you are looking at a project that might exceed your single bonding limit, be sure that the required limit listed is sufficient to support the projected amount. For example, if your limit is typically $5,000,000 and the project requires a bondability letter for a $6,000,000 job, it is important that you secure pre-approval from your agent/bond company to increase the amount of the single limit on the letter.

  • The bonding limits are often determined by the contractor’s fiscal year-end financial statement. This is one of many factors to set the limit but an extremely important consideration.

One final consideration is that bonding limits listed on a letter are often just a guideline reflecting the normal size of the projects our contractor clients usually bid. Based on their financial ratios and project history, some clients, for example, will qualify for a $10,000,000 limit but only list $2,000,000 because they rarely consider projects over that amount.

If you would like more information on how your particular bond limits are determined, please contact me at 619-937-0165 or mgaynor@ranchomesa.com.