Southern Machine Tooling (SMT) is an electrical discharge machine shop specializing in advanced aerospace, medical prototype parts and custom tooling. SMT is staffed by four employees: three in engineering and production and an office manager. Since SMT’s inception in 2006, the firm has matured with research and development (R&D) underlining the core of the company’s business activities.

SMT constantly conducted R&D over the years to create new and improved products and processes to perform to the best of their ability. Some of SMT’s daily operations include cutting aerospace alloys and hardened steel, aluminum and steel molds, prototype parts, plastic, high tolerance work -/-.0001”, and aluminum extrusion dies and tungsten carbide machining.

In 2016, SMT was approached by a client to modify a pre-formed door panel for an aircraft. The specification called for dozens of holes and several rectangular windows cut from the panel. However, SMT discovered that the panel itself was not within the specification, and all the features that SMT was required to machine needed to be cut perpendicular to the curved surfaces on which they were located.  SMT had to design a fixture to hold the part in its proper shape, design a fixture to hold a long electrode so SMT could rotate it to the proper angle, and create a program that would not only rotate the electrode to the correct angle but position it in the proper hole location relative to a datum established on the fixture.

In order to qualify for the  Research and Development Tax Credit, SMT needed to determine the eligibility of its proposed R&D activities. The “qualified research” must meet the following criteria:

  • Be in the field of science or technology
  • Involve one or more of these categories of R&D:
    • Basic research
    • Applied research
    • Experimental development
  • Seek to make scientific or technological advancement
  • Involve the resolution of scientific or technological uncertainty.

SMT’s qualified R&D activities included the following.


Design and development of a series of prototypes to achieve the technical objectives (design of door panel).

SMT develops many tooling and prototypes from ideas, sample parts, or rough sketches. When SMT creates components for the aerospace and medical parts, the design is generally provided. SMT’s engineering focuses on developing a precision method of manufacturing so parts meet the highly technical and extremely precise design requirements submitted by the clients.

SMT’s hypothesis for this activity questioned whether a door panel could be designed to meet the specifications and requirements of the space.

The experiments SMT conducted in the design phase predominantly entailed computer modelling, conceptual engineering drawings and mathematical calculations. These experiments could only be proven effective or ineffective in the prototype development and testing phase.

Following the experiments in that phase, during which the process was tested in various applications, the design was modified and re-tested until the desired outcome was achieved.

Trials and analysis of data to achieve results that can be reproduced to a satisfactory standard (development and testing of door panel).

The main objective for this activity stated that with improved knowledge of the intrinsic factors related to the process required to modify the door panel, it was possible to manufacture the door panel to the necessary specifications.

Details of this experiment included development of the fixture to hold the panel in its proper shape, development of a fixture to hold a long electrode and development of a program that would rotate the electrode to the correct angle.

Background research to evaluate current knowledge gaps and determine feasibility (background research of the development of SMT’s process).

Besides the lack of comparable solutions available, the outcomes of activities in this research could not have been known or determined in advance due to a number of specific technical challenges.

SMT’s eligible R&D activities during this phase of experimentation included:

  • Literature search and review, including maintaining up-to-date knowledge on relevant certification and standards.
  • Consultation with industry professionals and potential customers to determine the level of interest and commercial feasibility of the product.
  • Preliminary equipment and resources review with respect to capacity, performance and suitability for the project.
  • Consultation with key component/part/assembly suppliers to determine the factors they considered important in the design and to gain an understanding of how the design needed to be structured accordingly.

The background research conducted by SMT was directly related to the main objective of designing an improved metal vaporization process, therefore qualifying as R&D.

Ongoing analysis of customer or user feedback to improve the prototype design (feedback R&D of the interpretation software).

SMT’s eligible R&D activity for this phase of its project included:

  • Ongoing analysis and testing to improve the efficiency and safety of the project.
  • Ongoing development and modification to interpret the experimental results and draw conclusions that served as starting points for the development of new hypotheses.
  • Commercial analysis and functionality review.

These activities were necessary to evaluate the performance capabilities of the new design in the field and to improve any flaws in the design, therefore qualifying as R&D.


Similar to any tax credit or deductionSMT had to save business records that outlined what it did in its R&D activities, including experimental activities and documents to prove that the work took place in a systematic manner. SMT saved the following documentation:

  • Project records/ lab notes
  • Innovation Log
  • Conceptual sketches
  • Design drawings
  • Literature review
  • Background research
  • Records of changes
  • Testing protocols
  • Results of records of analysis from testing/trial runs
  • Records of resource allocation/usage logs
  • Staff time sheets
  • Tax invoices
  • Receipts

By having these records on file, SMT confirmed that it was “compliance ready” — meaning if it was audited by Revenue, it could present documentation to show the progression of its R&D work, ultimately proving its R&D eligibility.

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