B.C.'s 7% PST on Professional Services: The October 1, 2026 Compliance Guide

If you sell bookkeeping, accounting, engineering, architectural, security, or non-residential real estate services in British Columbia, you are about to become a sales-tax collector. On October 1, 2026, a 7% provincial sales tax (PST) lands on services that have never carried it before. And if you buy those services, your professional-services line is about to rise 7% — on top of the 5% GST you already pay.

There is no phase-in. There is no grace period for getting your invoices wrong. With less than a month to go, here is exactly what changed, who has to register, how the transition rules treat work that straddles the deadline, and the bookkeeping setup that keeps you compliant.

What is changing on October 1, 2026​

B.C.'s 2026 budget expanded PST to five categories of professional services, confirmed in the province's Notice 2026-001. Starting October 1, 2026, PST at 7% applies to:

• Accounting services, including bookkeeping and assurance (audit and review) services
• Architectural services
• Engineering and geoscience services
• Security services, including private investigation services
• Non-residential real estate services, including trading services, rental property management, and strata management

One category gets special math. PST on architectural, engineering, and geoscience services applies to only 30% of the purchase price — an effective rate of 2.1% on the full fee (7% × 30%). The partial inclusion is designed to soften cascading tax inside construction and capital projects, where engineering fees already sit inside taxable goods and structures.

Everything else on the list is taxed at the full 7% on the purchase price. And note that PST is computed on the price excluding GST, so a $1,000 bookkeeping invoice carries $50 of GST plus $70 of PST — a combined 12% on the base fee.

Why this is a bigger deal than it sounds​

Historically, B.C. taxed goods and software, with services pulled into the net only where the legislation explicitly named them — legal services, telecom, accommodation, work on tangible property, and a handful of others. Professional services like accounting and engineering sat outside the regime entirely. That made B.C. an outlier: most other provinces already tax a broader range of services. The budget's stated rationale is base-broadening to help close a large deficit — but for the firms affected, it is a structural change in how every invoice works, not a rate tweak. The provincial bookkeepers' association has publicly opposed the move, warning that a 7% increase on essential financial oversight risks pushing small businesses toward less oversight, more errors, and more compliance risk.

Do you have to register? Probably yes​

The registration rule is blunt: if you sell any of the newly taxable services that you will provide on or after October 1, 2026, you must register to collect and remit PST — and registration is online through eTaxBC.

Three points catch people out:

1. You must register even if you are not a CPA. The province says so explicitly. Solo bookkeepers, unlicensed tax preparers, freelance security consultants, and property managers are all in scope if they sell the listed services. The trigger is what you sell, not what letters follow your name.
2. You could have registered since April 1. Registration opens up to six months before your first taxable sale, and the province recommends registering as soon as possible. If you bill in September for work extending past November 30 (see the transition rules below), register before you issue those bills.
3. The only general way out is the small-seller exception. If your gross revenue from all retail sales of eligible goods, software, and services is $10,000 or less in the previous 12 months (and estimated at $10,000 or less for the next 12), you may qualify as a small seller under Bulletin PST 003 and skip registration. Almost every operating practice exceeds that line — treat it as a narrow carve-out for the tiniest side operations, not a planning strategy.

Already registered because you sell taxable goods or software? You do not need a second account, but you must start charging PST on the newly taxable services, and — important — once you sell any taxable accounting services, all of your PST filing and payment must be done electronically, with penalties if you file or pay any other way.

One administrative mercy: if you currently log into client accounts in eTaxBC as a third-party tax preparer, that access continues. Your clients keep their PST accounts; you simply need a PST account of your own for your business.

The transition rules: paid-vs.-provided timing decides everything​

This is the part that will generate the most errors, because the tax treatment of September and October billing depends on two dates, not one: when consideration is paid or becomes due, and when the services are provided. The province's rule, simplified:

• Paid or due before October 1, services entirely before December 1 → no PST. This is the two-month buffer: September-billed October and November work escapes the tax.
• Paid or due before October 1, but any services land on or after December 1 → PST applies to the consideration attributable to services provided on or after October 1. The December work drags the October and November portion into the net too.
• Paid or due on or after October 1 → PST applies, regardless of when you did the work. September work billed in October is taxable. August work on a September invoice paid in October is not (consideration was due in September and nothing was provided after November) — but the same invoice paid a day later under October terms would be.

Walk through the cases that will actually hit your desk:

Monthly retainers and subscriptions​

A year-long bookkeeping contract billed on the 15th for the following month is the cleanest case. The September 15 bill for October services: no PST. The October 15 bill for November services: PST. Set your invoicing system to flip the tax switch on bills issued on or after October 1, not on work performed after that date.

Quarterly or multi-month prepayments​

A client prepays September 15 for October through December at $100 a month. Because December services are in the bundle, PST applies to the October–December portion: $100 × 3 × 7% = $21. If you are already registered, collect it. If you are not registered yet, do not assume nobody owes it — the client must self-assess, either on their own PST return for the October period or, without a PST number, on a Casual Remittance Return (FIN 405) due by November 30.

Late billing for September work​

You finished the work in September but the invoice goes out October 1. Taxable — consideration became due on or after October 1. The lesson: clear your September work-in-progress billing before October 1 wherever possible, and date your invoices honestly, because the issue date is doing real tax work now.

What this means for engagement letters​

Fixed-fee and hourly contracts signed before the budget generally do not excuse anyone from collecting the tax — PST status is a matter of statute, not contract. Review your standard terms now: add a clause stating fees are exclusive of GST and PST, and send existing retainer clients a short notice that October bills will carry the additional 7%. Clients dislike surprise taxes far more than announced ones.

Exemptions worth knowing (and documenting)​

Several exemptions blunt the impact, but every one of them needs paperwork in your files:

• Work relating outside B.C. Accounting done in B.C. for a client carrying on business here is exempt to the extent it relates to property, presence, or transactions outside the province. A Vancouver accountant doing the Calgary branch's books bills that portion PST-free. For mixed files, apportion on a reasonable basis — the province's own example blesses headcount-style allocation (35% of employees in B.C. → PST on 35% of the fee) — and keep the working papers showing your estimate.
• Purchases for resale. A firm that subcontracts return preparation and resells it to clients buys exempt with its PST number (or a FIN 490 Certificate of Exemption if unregistered), then charges PST on the client-facing sale. Small sellers cannot use this exemption.
• Estates, bankruptcies, and liquidations. Accounting as a trustee, executor, administrator, custodian, liquidator, or receiver is exempt.
• Residential rental and strata work by licensed managers. Accounting bundled into residential property management or strata management by someone licensed under the Real Estate Services Act stays exempt — but the same accounting folded into taxable non-residential real estate services is taxable with the bundle.
• First Nations purchasers. Services performed on First Nations land, or relating to property, presence, or transactions there, are exempt for First Nations individuals and bands (not for tribal councils, corporations, or band-empowered entities), alongside exemptions for treaty and rights-related consultation work.
• Out-of-province providers are not off the hook. An Alberta accountant doing payroll for a Vancouver business must deal with PST too: if they do not charge it, the B.C. client self-assesses. When you hire across borders, ask for the provider's PST number the way you already ask for their GST number.

Two pricing details from the fine print: at-cost pass-throughs for faxing, printing, and copying, plus at-cost travel, food, and accommodation disbursements, are excluded from the taxable purchase price. Mark any of them up and the whole amount joins the taxable base. And bundled sales — one price mixing taxable services with anything exempt — follow the bundled-sale rules in Bulletin PST 316, which can easily pull more of the invoice into tax than you expect. Unbundle your quotes where you can.

What it costs your clients: run the numbers now​

For buyers, this is a straight cost increase with no input credit mechanism — PST, unlike GST, is generally not recoverable. Illustrative math on typical small-business spends:

• Monthly bookkeeping at $600 → $42/month of PST, $504 a year
• Year-end compilation and corporate return at $3,500 → $245
• Ongoing fractional-CFO support at $2,500/month → $175/month, $2,100 a year
• A $40,000 engineering study → PST on 30% ($12,000) = $840 effective 2.1%, not $2,800

Put the 7% (or 2.1%) into every budget, forecast, and fee quote that touches the last quarter of 2026. Lenders and boards reviewing Q4 forecasts built before the budget should see a revised professional-fees line — a forecast that omits a known 7% cost increase is already wrong.

Your pre-October 1 compliance checklist​

Whether you sell the affected services or buy them, work through this list before the deadline:

1. Register in eTaxBC if you sell newly taxable services and are not registered. Do it this week, not September 30.
2. Reconfigure invoicing so tax codes flip based on bill-issue date, with a separate PST line and your PST number displayed. Test it with a $100 sample invoice: $5 GST, $7 PST, $112 total.
3. Segregate the liability in your chart of accounts. PST collected is not revenue — it needs its own current-liability account (e.g., Liabilities:PST-Payable-BC), split from GST/HST payable, with a matching receivable-side account for PST paid that you self-assess. If you keep your books in plain text, the Beancount documentation shows how to model multi-tax-jurisdiction postings so an auditor can trace every dollar from invoice to return.
4. Review open contracts and WIP. Identify every bill that will issue on or after October 1 and every prepayment covering December work. Renegotiate or notify now.
5. Collect exemption certificates up front. FIN 490s from resale buyers, reasonable-estimate letters for multi-jurisdiction apportionment, First Nations documentation — gather them before the first taxable invoice, not during an audit.
6. Set up self-assessment. If you buy taxable services from unregistered out-of-province providers, calendar the FIN 405 or PST-return reporting for each period.
7. Switch to electronic filing and payment for all PST obligations — it becomes mandatory once these services enter your mix.
8. Tell your clients. A one-page notice explaining the new 7% line, why it appears, and that it is a statutory pass-through (not a fee increase) will save dozens of awkward conversations in October.

Two adjacent October 1 changes deserve a line in the same systems project: several old PST exemptions disappear the same day (clothing patterns and fabrics, clothing-related services, basic cable, toll-free and residential landline service), while a new point-of-sale exemption for goods bought for business use outside B.C. has applied since February. If you are touching tax codes anyway, update all of them.

Keep Your Books Ready for the New Tax Line​

A new 7% tax on the services you sell — or buy — is exactly the kind of change that punishes messy books: unsegregated tax accounts, undated invoices, and exemption paperwork living in someone's inbox. Getting your chart of accounts, invoice templates, and monthly close disciplined now means October's first PST return is routine instead of a scramble. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data — no black boxes, no vendor lock-in. Get started for free and see why developers and finance professionals are switching to plain-text accounting.