Sales tax in Saskatchewan
Saskatchewan charges 5% GST plus 6% PST, with resale exemptions and its own registration. The essentials for businesses.
The shape
5% federal GST plus 6% provincial PST, separately administered — 11% combined on most retail sales. SK PST reaches somewhat wider than BC's, including many services.
Resale and registration
Goods for resale are PST-exempt with a vendor's licence; selling into Saskatchewan from outside can itself create a registration obligation — the province is assertive about remote sellers.
In SeroBooks
Saskatchewan lines compute GST and PST as separate components — posted separately, reported separately, filed separately.
A separate provincial tax with its own rules
Saskatchewan levies its provincial sales tax alongside the federal layer, administered by the province with its own registration, its own base and its own filing. Two authorities, two returns, two accounts in the ledger — collapsing them into one blended figure is what makes filing season painful.
Both are applied per line and posted separately at the moment of sale, so each return reads from its own account.
Buying for resale
As in the other separate-tax provinces, goods bought for resale are generally not subject to the provincial tax, which means the purchase treatment differs from the sales treatment for the same item. Recording that correctly keeps inventory valued at true cost.
SeroBooks derives this from your business's own province rather than assuming it, so a Saskatchewan business and a BC one behave correctly without either being a special case.
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.