PST resale exemptions: stop paying tax on stock
In BC, Saskatchewan and Manitoba, goods bought for resale are PST-exempt — how the exemption works and how to claim it properly.
The principle
PST is a retail tax: it is meant to hit the final consumer once, not every link in the chain. So goods you buy to resell are exempt — you charge PST when you sell them, not when you buy them.
How to claim it
Register for PST in your province, give suppliers your PST/vendor number on an exemption declaration, and they stop charging you PST on resale goods. Buy something for your own use — a till, shelving — and PST applies as normal: the exemption follows the purpose, not the buyer.
In SeroBooks
Purchase lines apply the resale exemption automatically where the province allows it, so stock arrives untaxed and consumables arrive taxed — the distinction most one-rate systems cannot express.
You are not the end consumer
Provincial sales taxes are designed to fall on final consumption, so a retailer buying inventory to resell generally should not pay provincial tax on it. Three provinces run a separate provincial tax where this matters most — and getting the exemption wrong quietly inflates your cost of goods, which then quietly deflates your reported margin.
The exemption is claimed with the supplier at purchase, and your books have to reflect the treatment that actually applied, not the one you meant to claim.
This is why purchases differ from sales
For most Canadian businesses the purchase side of tax mirrors the sales side. In the separate-provincial-tax provinces it does not: the same item can be taxable when you sell it and exempt when you buy it for resale. Software that assumes symmetry gets this wrong by design.
SeroBooks derives the treatment from the business's own province and the goods' destination rather than from a hardcoded assumption, which is what makes a second location in another province a configuration change rather than a rebuild.
How SeroBooks applies this
Tax is decided per line, not per invoice. Each line's treatment comes from the product's tax category and the place of supply, so a GST-only item and a GST-plus-provincial item sit on the same sale without anyone thinking about it. Combined rates split into their federal and provincial halves in the ledger — one payable account per tax actually levied — which is what lets a return be filed from the books rather than rebuilt in a spreadsheet.
The Tax report then reads that same ledger for any period: taxable sales by rate with the base for each, zero-rated sales counted rather than dropped, credit notes netted, and a self-check against the sales ledger that says so out loud when the two disagree. Input tax credits accrue from purchase documents as they are entered.
Tax handled per line, per province, automatically.
The place-of-supply engine inside SeroBooks does this all day.