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Self-assessed PST on purchases (use tax)

Self-assessed PST is provincial sales tax that a purchaser reports and pays directly to the province because the seller did not charge it on taxable assets. This entry covers British Columbia and Saskatchewan only.

A buyer of business assets meets self-assessment when the seller does not collect PST, for example a seller that is not a collector or a business closing down. This entry covers British Columbia and Saskatchewan; check the rules where you are.

British Columbia

The BC Ministry of Finance says that if the seller is not a collector or does not charge PST on the taxable assets, the purchaser must self-assess and remit the PST due on their next PST return. A purchaser without a PST number uses a Casual Remittance Return (FIN 405) by the last day of the month following the month the taxable items were purchased.

Saskatchewan

Saskatchewan says businesses must self-assess and remit PST directly to the Ministry of Finance when they buy assets from a supplier who did not collect it, such as a non-resident supplier or a business ceasing operations. PST due on later purchases of business assets is reported on the “Net Tax on Consumption” line of the regular return.

See liability for a seller’s unpaid provincial sales tax and PST clearance certificates.

Sources

This definition is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Government of British Columbia — Ministry of FinanceGovernment
    Buying and selling a business
    www2.gov.bc.ca·Checked Aug 16, 2026
  2. 02
    Government of Saskatchewan (Ministry of Finance)Government
    Pay PST on Your Business Assets
    saskatchewan.ca·Checked Oct 25, 2026

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