{"id":2952,"date":"2026-01-08T15:19:15","date_gmt":"2026-01-08T15:19:15","guid":{"rendered":"https:\/\/contractcorridor.com\/?p=2952"},"modified":"2026-03-26T12:26:21","modified_gmt":"2026-03-26T12:26:21","slug":"what-is-a-cost-plus-contract","status":"publish","type":"post","link":"https:\/\/contractcorridor.com\/au\/contractsexplained\/what-is-a-cost-plus-contract\/","title":{"rendered":"What is a Cost-Plus Contract?\u00a0"},"content":{"rendered":"[et_pb_section fb_built=”1″ _builder_version=”4.16″ custom_padding=”0px|||||” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.22.2″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” width=”100%” custom_padding=”0px|||||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9mZWF0dXJlZF9pbWFnZSIsInNldHRpbmdzIjp7fX0=@” title_text=”What Is Contract Redlining” force_fullwidth=”on” _builder_version=”4.27.4″ _dynamic_attributes=”src” _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_text disabled_on=”off|off|off” _builder_version=”4.27.4″ _module_preset=”default” header_font=”Raleway|600|||||||” header_font_size=”25px” custom_margin=”||-10px|||” global_colors_info=”{}”]

What is a C<\/span>ost-Plus Contract?<\/span><\/span>\u00a0<\/span><\/h1>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” width=”100%” custom_margin=”-13px|auto||auto||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.22.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_font=”Poppins|300|||||||” text_font_size=”17px” link_text_color=”#e06347″ custom_margin=”||6px|||” global_colors_info=”{}”]

TABLE OF CONTENTS: <\/strong><\/h4> <\/strong> Introduction<\/a> Definition <\/a> Key Terms, Elements, and Clauses <\/a> Types of Cost-Plus Contracts <\/a> When to Use a Cost-Plus Contract <\/a> Benefits <\/a> Common Risks <\/a> Cost-Plus Contract vs. Fixed-Price Contract <\/a> Examples in Different Industries <\/a> Managing Cost-Plus Contracts with Contract Corridor <\/a>  [\/et_pb_text][et_pb_text module_id=”1″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||17px|||” global_colors_info=”{}”]

Introduction<\/span><\/b>\u00a0<\/span><\/h4>

A\u00a0<\/span><\/span>cost plus<\/span>\u00a0<\/span>contract<\/span>–<\/span>often called a\u00a0<\/span><\/span>cost-plus contract<\/span>,\u00a0<\/span><\/span>cost reimbursable contract<\/span>, or\u00a0<\/span><\/span>cost plus fee agreement<\/span>–<\/span>is one of the\u00a0<\/span><\/span>most commonly used<\/span>\u00a0<\/span>pricing models in construction, government procurement, and complex service delivery. Instead of charging a fixed price, the buyer reimburses the\u00a0<\/span><\/span>Service Provider<\/span>\u00a0<\/span>for\u00a0<\/span><\/span>contractual costs<\/span>\u00a0<\/span>incurred during performance, plus an agreed\u00a0<\/span><\/span>contractual fee<\/span>\u00a0<\/span>(profit).<\/span><\/span>\u00a0<\/span><\/span><\/span>This model is widely used when the scope is uncertain or evolving, making\u00a0<\/span><\/span>fixed-price<\/span>\u00a0<\/span>contracting impractical.<\/span><\/span>\u00a0<\/span><\/p>[\/et_pb_text][et_pb_text module_id=”1″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||17px|||” global_colors_info=”{}”]

Definition<\/span><\/b>\u00a0<\/span><\/h4>

A\u00a0cost plus\u00a0contract definition\u00a0is simple:<\/span>\u00a0
<\/span>The client agrees to pay the\u00a0Service Provider\u00a0all\u00a0contracted cost\u00a0or\u00a0contractual costs\u00a0associated with completing the work (costs plus)\u00a0plus service, meaning an\u00a0additional\u00a0fee. This fee may be fixed, variable, incentive-based, or performance-related.<\/span>\u00a0<\/span><\/p>

You can\u00a0define cost plus contract\u00a0as:<\/span>\u00a0<\/span><\/p>

A pricing arrangement where the\u00a0Service Provider\u00a0is reimbursed for actual project costs and paid an\u00a0additional\u00a0fee or profit margin, usually expressed as a fixed fee, percentage, or incentive.<\/span>\u00a0<\/span><\/p>

This model forms the basis of multiple variations such as\u00a0cost-plus-fee,\u00a0cost plus a fee contract,\u00a0cost plus incentive fee contract,\u00a0cost plus fixed fee contract, and\u00a0cpaf\u00a0(Cost-Plus-Award-Fee)\u00a0agreements.<\/span>\u00a0<\/span><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=”rev” _builder_version=”4.27.4″ _module_preset=”default” width=”100%” custom_margin=”-13px|auto|-2px|auto||” custom_padding=”28px||10px|||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.22.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text module_id=”2″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”-33px||5px|||” custom_padding=”1px|||||” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]

Key terms, elements, and clauses<\/span><\/b>\u00a0<\/span><\/h4>

<\/span><\/p>

  1. Allowable Costs<\/span><\/b><\/span><\/li> <\/ol>

    Includes direct and indirect\u00a0<\/span>contract cost\u00a0items such as:<\/span>\u00a0<\/span><\/p>

      • Labour<\/span>\u00a0<\/span><\/li>
      • Materials<\/span>\u00a0<\/span><\/li>
      • Equipment<\/span>\u00a0<\/span><\/li>
      • SubService\u00a0Provider<\/span>\u00a0<\/span><\/li>
      • Overheads<\/span>\u00a0<\/span><\/li> <\/ul> <\/li> <\/ul>
        1. Cost Plus Fee<\/span><\/b><\/span><\/li> <\/ol>

          The \u201c<\/span>plus\u201d\u00a0portion-also called the\u00a0contractual fee-may be:<\/span>\u00a0<\/span><\/p>

            • A fixed fee<\/span>\u00a0<\/span><\/li>
            • A percentage of costs<\/span>\u00a0<\/span><\/li>
            • An award fee (e.g.,\u00a0<\/span>cost plus award fee)<\/li>
            • Incentive-based<\/span><\/li> <\/ul> <\/li> <\/ul>
              1. Cost Reimbursement<\/span><\/b><\/span><\/li> <\/ol>

                The employer reimburses all allowable project costs, making it a type of\u00a0<\/span>cost reimbursable contract, also referred to as a\u00a0cost reimbursement contract.<\/p>

                1. Transparency Requirements<\/span><\/b><\/span><\/li> <\/ol>

                  A detailed\u00a0<\/span>cost plus\u00a0system\u00a0of cost tracking, documentation, and reporting.<\/span>\u00a0<\/span><\/p>

                  1. Audit Rights<\/span><\/b><\/span><\/li> <\/ol>

                    Clients typically reserve the right to audit invoices, supporting documents, and the\u00a0Service Provider\u2019s internal\u00a0<\/span>cost plus\u00a0model.<\/p>

                    1. Risk Allocation Clauses<\/span><\/b><\/span><\/li> <\/ol>

                      Because the\u00a0client\u00a0carries more risk, contracts include clauses on caps, exclusions, and prior approvals.<\/span>\u00a0<\/span><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_id=”sec” _builder_version=”4.27.4″ _module_preset=”default” width=”100%” custom_margin=”-13px|auto||auto||” custom_padding=”||24px|||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.22.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text module_id=”5″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||10px|||” custom_padding=”0px|||||” global_colors_info=”{}”]

                      Types of Cost-Plus Contracts<\/span><\/b>\u00a0<\/span><\/h4>
                      1. Cost Plus Fixed Fee Contract (CPFF)<\/span><\/b><\/span><\/li> <\/ol>

                        Service Provider\u00a0receives reimbursed costs plus a fixed fee. Common in\u00a0<\/span>cost plus government contract\u00a0situations.<\/span>\u00a0<\/span><\/p>

                        1. Cost Plus Percentage of Cost Contract (CPPC)<\/span><\/b><\/span><\/li> <\/ol>

                          Service Provider\u00a0fee equals a percentage of project costs. Risky for clients and often restricted in public procurement.<\/span>\u00a0<\/span><\/p>

                          1. Cost Plus Incentive Contract (CPIF)<\/span><\/b><\/span><\/li> <\/ol>

                            Fee includes incentives tied to cost savings or performance.<\/span>\u00a0<\/span><\/p>

                            1. Cost Plus Award Fee (CPAF)<\/span><\/b><\/span><\/li> <\/ol>

                              Fee awarded based on qualitative performance (e.g., quality, schedule, cooperation).<\/span>\u00a0<\/span><\/p>

                              1. Cost Plus Construction Contract<\/span><\/b><\/span><\/li> <\/ol>

                                Used in\u00a0<\/span>what is cost plus construction,\u00a0cost plus construction contract,\u00a0construction cost plus, and\u00a0construction cost plus contract\u00a0arrangements.\u00a0<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ disabled_on=”on|on|off” _builder_version=”4.27.4″ _module_preset=”default” background_image=”https:\/\/contractcorridor.com\/wp-content\/uploads\/2026\/01\/What-is-a-cost-plus-contract-CTA-.png” height=”236px” custom_margin=”||35px||false|false” custom_padding=”0px||0px||true|false” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”|16px||31px|false|false” global_colors_info=”{}”][et_pb_code _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”110px||0px||false|false” custom_padding=”0px||0px||false|false” global_colors_info=”{}”]