Oilfield PST in Saskatchewan Depends on the Work Performed

Use the service description as the starting point

PST-13 identifies aboveground construction and pipeline work as taxable categories. Qualifying oil and gas drilling and downhole service components can be exempt, while installed materials and repair parts must be separated and taxed. If required materials are not segregated, the bulletin requires tax on the whole charge.

Keep the signed scope, ticket and line-item description together. The invoice should allow a reviewer to identify which activity occurred and why the classification was chosen. A mixed job may need distinct work descriptions rather than one line combining every hour and part.

Worked example: two different jobs

Illustrative example: a verified qualifying downhole service has a $4,800 service component and $1,200 of installed materials, separately invoiced. PST on the materials is $72. Assuming the full $6,000 is subject to ordinary 5% GST, GST is $300 and the customer total is $6,372. The example assumes the work meets the published exemption conditions.

A separate aboveground repair verified as a fully taxable $6,000 supply has $360 PST and, on the same GST assumption, $300 GST, producing a $6,660 total. The $288 difference follows the classification and itemization of the supplied work. It is not a discount a business can select to match a customer’s preference.

Keep equipment purchases and service invoices distinct

The tax treatment of the service sold does not automatically decide the treatment of tools, consumables or capital equipment used by the contractor. Those purchases require a separate assessment under the applicable guidance. Likewise, calling a charge supervision does not settle its treatment when it is connected with other work.

When a recurring contract changes, review the code again. Adding a repair to an inspection visit, combining work categories or supplying different equipment can make an old invoice template unsuitable. The owner should obtain provincial clarification where the facts do not fit a clear category.

A classification control for the office

Maintain a short register of recurring job types, the supporting provincial reference and the person who approved the treatment. The register should flag uncertainty instead of claiming to replace a ruling.

• Describe the actual activity and the property or equipment involved.
• Retain separate service and installed-material amounts where required.
• Assess GST independently from PST.
• Review changed scopes and uncertain contracts before invoicing.

Put this into practice

• Organize regional field records →
• Maintain separate tax controls →
• Build a complete invoice package →