Xero B.C. PST setup for engineering: GST 5% plus 7% on 30% (2026)

Make C$1,071 the acceptance result

For a confirmed C$1,000 taxable engineering service connected to B.C., the provincial formula produces C$21 of PST: 7% × (30% × C$1,000). If the federal facts separately support 5% GST on the full fee, the illustrative GST is C$50 and the invoice total is C$1,071.

Use that output as the acceptance result for Xero. A tax-rate name or a total of 7.1% does not prove that the customer PDF, tax components, return reports, credit, rounding, sales-tax account, Box A, and Box B all preserve the legal split.

Confirm the engineering-service definition, B.C. connection, exemptions, resale treatment, disbursements, allocations, collector or small-seller position, transition dates, and federal GST treatment before changing Xero. This implementation starts only after those facts are supported.

Create one candidate rate with two named components

Xero's current Canadian instructions say that a province with PST, RST, or QST can use a tax rate with two components. For a fully taxable engineering line, the candidate rate has a 5% GST component only when that federal treatment is confirmed and a 2.1% B.C. engineering PST component. Both calculate on the same net line amount.

The 2.1% entry is an implementation equivalent—7% × 30%—not the statutory PST rate. The combined 7.1% is also not one legal tax. Give the rate and components auditable names such as “GST 5% + BC PST ENG 7%×30%” and preserve a separate workpaper showing the statutory formula.

Xero says a custom rate's display name is internal and does not appear on invoices or quotes, and a component percentage cannot be changed after the rate has been used. Create a dated candidate, test it in a non-customer draft, and do not repurpose a historical rate. Use another rate or separate supported lines when GST does not apply or when an amount is exempt, mixed, allocated, credited, or transitional.

Map every custom component before relying on a return report

Xero's mapping instructions say custom tax rates must be mapped manually. For each component, choose the current tax type and return location that matches the reviewed reporting treatment. Do not guess a location from the rate name, and do not assume that adding the component places it on a return automatically.

Xero warns that transactions using incomplete or unmapped rates can be omitted from sales-tax return reports and can produce warnings in exported reports. Treat any missing mapping, unavailable return location, or unexplained report warning as a hard stop. Save the component names, mapping screens, date, reviewer, and expected report location with the setup evidence.

Mapping is a software-reporting control, not a legal conclusion. Confirm the current Xero return layout against the CRA and B.C. filing workpapers, and get current Xero or accounting support if the provincial component cannot be mapped and traced without ambiguity.

• Record the Xero organization, edition, tax basis, rate name, component names, percentages, mapping locations, effective date, setup date, and reviewer.
• Open the relevant sales-tax report and confirm both components are included before approving the rate.
• Reject any exported report that says the custom rate is unmapped or incomplete.
• Keep the 7%-on-30% workpaper even when the report describes the component as 2.1% of the full line.

Configure the invoice theme to show GST and PST separately

Section 85 of the Provincial Sales Tax Regulation requires a collector who provides an invoice and levies PST to show the tax as a separate item. Because Xero's tax-rate display name is internal, do not assume the customer document will explain the split merely because the rate is named clearly in settings.

Xero's current standard-template instructions allow tax subtotals to be shown by tax rate, by individual tax components, or as one subtotal. In Sales settings, open Invoice settings, edit the active theme's options, and select the component-level tax-subtotal display. An advanced DOCX theme has component merge fields, but it still requires an actual render test.

Preview, print, or save the PDF. Approve it only if the customer can identify C$50 GST and C$21 B.C. PST as separate amounts and the C$1,071 total reconciles. A PDF that only says “Tax C$71” or “7.1%” fails even when Xero's backend report contains two components.

Test larger, credit, cents, and mixed-line transactions

Xero applies the selected tax rate to each transaction line and rounds the tax on each line to cents before calculating the total. That means a single C$1,000 test does not cover cents-sensitive invoices or invoices split across several lines. Compare Xero to the saved legal workpaper at both the line and document levels.

Run the C$1,000 baseline, a C$12,000 fee, a C$100 credit, at least one cents-sensitive multi-line invoice, and one mixed or allocated invoice. Use drafts or clearly fictional test contacts rather than emailing a real customer. Verify the screen, PDF, journal, sales-tax report, and credit reversal for each case.

A C$12,000 fully taxable engineering fee produces C$252 PST and, when 5% GST is separately confirmed, C$600 GST and a C$12,852 total. A C$100 credit reversing the same treatment should reverse C$2.10 PST and C$5 GST. Mixed work belongs on separately classified lines; a two-component rate cannot decide which work is taxable.

Control Xero's single sales-tax account limitation

Xero's current general-ledger guidance says it uses one sales-tax system account and that additional tax accounts are not included in the Sales Tax report. Its Canadian review workflow therefore assumes GST and provincial components coexist in that system account rather than in separate Xero-controlled GST and PST payable accounts.

This is a material implementation limitation, not a reason to ignore the split. Review the Sales Tax report with “Show by Tax Component,” trace the B.C. PST component to the underlying invoices and credits, compare it with the general-ledger sales-tax balance, and derive the remaining GST component only after investigating other taxes, adjustments, payments, and timing items. Preserve that bridge with the period close.

Do not create a second ordinary liability account and assume Xero's Sales Tax report will include it. If separate GST and PST liability accounts are a firm accounting-policy requirement, or if the component report cannot reconcile the shared account cleanly, stop and obtain current Xero and qualified accounting support before enabling automatic invoices.

Reconcile return workpapers, eTaxBC, and payments

The Province's return guide says Box A includes taxable, non-taxable, and exempt Canadian sales and leases before GST and PST. Box B includes PST collectable on taxable sales and leases, including PST charged but not yet collected. Sellers of the newly taxable professional services must file and remit electronically.

For the C$1,000 acceptance transaction, the B.C. workpaper should generally trace C$1,000 to the appropriate Box A population and C$21 to Box B, subject to the full period's facts. Reconcile invoice lines and credits to the Xero component report, the shared sales-tax account bridge, the Box A and Box B workpapers, the eTaxBC return, and the payment confirmation. Do not claim Xero automatically files this B.C. return.

For GST/HST, Xero's current return guidance relies on mapped rates and says unmapped rates are excluded. Review transactions by line number, reconcile the federal component to the CRA-ready workpaper, file through the authorized external path, and record payments or refunds to Xero's sales-tax system account using the current payment workflow. Fees and interest belong outside the tax payment amount.

Fail closed when classification, display, mapping, or reconciliation breaks

The two-component rate is arithmetic only. It cannot classify a service, establish the B.C. connection, choose an exemption, allocate a bundle, remove an actual-cost disbursement, decide small-seller or registration status, apply the October transition, or determine federal GST. Use separate supported lines and workpapers whenever the facts differ.

Approve the setup only after the legal classification, two-component arithmetic, custom mapping, customer PDF, line rounding, credit, shared-account bridge, federal return, Box A, Box B, eTaxBC, and payment tests all pass. Preserve screenshots, PDFs, reports, mappings, expected and observed results, corrections, reviewer, and approval date.

If Xero cannot show PST separately, omits a custom component, cannot map the expected return location, or cannot reconcile the shared account by component, pause automatic sending. Use a reviewed invoicing process that meets the legal and accounting controls and obtain current Xero, bookkeeping, accounting, or provincial support. Xero is a trademark of Xero Limited; Thirty North is not affiliated with or endorsed by Xero.