Serving St. Thomas, Central Elgin and Southwold
Accountant for St. Thomas and Elgin County
St. Thomas is growing faster than it has since its days as a railway junction. The 2021 census counted 42,918 residents, about 10% more than five years earlier, and the PowerCo battery plant on the city’s eastern edge is pulling in contractors, suppliers and families from the GTA. A&P Accounting & Tax Experts prepares the tax returns, books and payroll that come with that kind of change.
Our St. Thomas clients include tradespeople who incorporated to take on bigger contracts, households filing their first return from a new Elgin County address, and farm families thinking about the next generation. Each situation brings its own forms, from a T2125 for a new sole proprietor to the T2042 farm statement, and we work with all of them.
Most clients here work with us online, and the rest make the 25 to 30 minute drive up Highway 4. Either way, nothing is filed until we have walked you through it.
- 5.0 stars on Google
- Downtown London office
- In person or fully online
- Open Saturdays
What we do here
Accounting and Tax Help for St. Thomas Residents and Businesses
A St. Thomas household and a St. Thomas contractor rarely need the same thing, but both need filings that are right the first time. Here is where we spend most of our time with clients from the Railway City and the townships around it.
Personal Tax Returns for St. Thomas Residents
T1 returns for employees, retirees and newcomers to the city, with the Ontario Trillium Benefit, medical expenses and pension splitting checked before we e-file.
Self-Employed Tax Help for Elgin County Trades
Business income on Form T2125 for electricians, framers, haulers and other sole proprietors, including vehicle logs, CPP on self-employment and quarterly instalments.
Corporate Tax Returns for St. Thomas Companies
T2 returns and year-end statements for newly incorporated contractors, holding companies and established family businesses, filed within six months of year-end.
Bookkeeping for St. Thomas Small Businesses
Monthly or catch-up bookkeeping in QuickBooks Online or Xero, reconciled to the bank so your HST return and year-end are built on numbers you can trust.
Payroll Services for St. Thomas Employers
Pay runs, CPP and EI deductions, monthly remittances, Records of Employment and T4 slips for businesses hiring as local demand grows.
Not Sure What You Need Yet?
Call 778-927-6026 and describe what is going on. We will tell you which filings apply, what to gather and what the work will cost before anything starts.
Growing a business in St. Thomas?
Call us before your next big contract or first hire and get a fixed quote for the books, payroll and tax filings that come with it.
Local situations
Tax Questions That Come Up as St. Thomas Grows
Growth brings paperwork. A bigger contract, a house sold in Mississauga or a son taking over the home farm each changes what you file and when, and the cost of a mistake grows with the size of the change.
These are the three situations St. Thomas and Elgin County clients raise with us most often right now.
Suppliers and Contractors Serving the PowerCo Battery Plant
PowerCo Canada, Volkswagen’s battery company, is building its first North American gigafactory on roughly 600 hectares that St. Thomas annexed from Central Elgin in 2023. In September 2026 the company moved the start of cell production to 2029, but construction of the first phase is continuing, and that work is keeping local trades, fabricators and haulers busy.
Scaling up for a project of this size usually means incorporating, hiring and invoicing larger general contractors all at once. Once your taxable sales pass $30,000 over four consecutive calendar quarters, HST registration is mandatory, and the 13% Ontario rate applies to most construction services.
- A new corporation with a T2 return built around its first fiscal year
- A CRA payroll account, source deductions and T4 slips for new hires
- WSIB coverage, which is mandatory for most Ontario construction businesses
- T5018 slips if construction is your main line of business
- Invoices and receipts organized so every input tax credit holds up
Moving to St. Thomas From the GTA
Many new St. Thomas residents sold a house in the Toronto area and bought here for less. If that house was your home for every year you owned it, the principal residence exemption usually shelters the whole gain, but the sale still has to be reported on Schedule 3 with the designation on Form T2091(IND).
If the move brought you at least 40 km closer to a new job, moving costs such as movers, travel and the real estate commission on the old home can be deducted against income earned here. Your first Ontario Trillium Benefit claim from a new address also needs property tax or rent for both homes.
Elgin County Farms and Rural Businesses
Outside the city limits, Elgin is still farm country. Any Ontario farm grossing $7,000 or more a year must renew its Farm Business Registration with Agricorp, which also delivers AgriStability and AgriInvest in this province.
We prepare the T2042 farm statement, keep your tax return and Agricorp figures consistent, and help families plan the handover early. A transfer to the next generation can use the intergenerational rollover and the capital gains exemption for qualified farm property, but only when the paperwork is set up years in advance.
Communities We Serve in Elgin County
St. Thomas is a separated city: it is the seat of Elgin County but runs independently of it, which is why your property tax bill comes from the city while your neighbours in Central Elgin or Southwold pay through their township. We work with clients on both sides of that line.
- St. Thomas: 25 to 30 minutes up Highway 4 to our Wellington Street office.
- Talbotville: home to the Amazon fulfillment centre on the old Ford assembly site, and about 20 minutes from downtown London.
- Port Stanley: the Lake Erie village is about 40 minutes away, so most clients there work with us online.
- Union and Sparta: roughly 35 minutes, with drop-off and online service equally popular.
- Belmont: about 25 minutes, often quicker than driving into St. Thomas.
- Central Elgin and Southwold: rural routes and townships around the city, all within about 40 minutes of the office.
From Port Stanley to Talbotville, we are one call away
Ask how online filing works or book a drop-off on a weekday or Saturday.
Online or in person
How St. Thomas Clients Work With Us
You can do everything from your kitchen table in St. Thomas, or bring your folder to us downtown. The method changes; the care does not.
Upload or Drop Off Your Documents
Send T4s, receipts and bank statements through our secure client portal, or leave a labelled folder at the office on your way through London.
Sign Electronically and Talk It Through
Authorizations like the T183 and the CRA’s Represent a Client request are signed by e-signature, and your questions are answered by phone or video call.
Review, File and Stay Covered
We review every return with you in plain language before it is filed, then stay on call all year if a CRA letter arrives.
St. Thomas Accounting FAQs
These are the questions St. Thomas and Elgin County callers ask us most, answered the way we would answer them on the phone.
Do I need to come to London to file my taxes?
No. Most St. Thomas clients never visit the office: you upload slips and receipts through our secure client portal, sign the T183 e-filing authorization electronically and go over the return with us by phone or video call.
If you would rather hand over a folder in person, the downtown London office is 25 to 30 minutes up Highway 4 and open Saturdays from 10 a.m. to 3 p.m. as well as weekdays.
Can you help a new business supplying the battery plant set up payroll and HST?
Yes. We open the CRA payroll program account, set up source deductions and remittances, and register the business for HST once sales are on track to pass the $30,000 small supplier threshold, or sooner if registering voluntarily makes sense for your input tax credits.
From there, our payroll services for St. Thomas employers keep each pay run, remittance and T4 slip on schedule, and our bookkeeping for Elgin County businesses keeps the HST return backed by clean records.
Do you work with Elgin County farms?
Yes. We prepare farm income on the T2042 statement, help keep the figures Agricorp uses for AgriStability and AgriInvest consistent with your tax return, and make sure the annual Farm Business Registration is not missed.
We also encourage families to start the succession conversation years before a transfer. The intergenerational farm rollover and the capital gains exemption for qualified farm property work best with time to plan.
Has the PowerCo production delay changed anything for local businesses?
The tax rules are the same, but the timing of your revenue may not be. PowerCo announced in September 2026 that cell production will start in 2029 rather than 2027, while construction of the first phase continues.
If your forecast assumed production-phase work in 2027, it is worth revisiting instalments, hiring plans and when incorporation makes sense. We can rework those numbers with you before your next year-end.
Book a Consultation for Your St. Thomas Taxes
Tell us what needs filing, whether it is one T1 return or a new corporation’s first year-end, and we will give you a fixed quote and a list of what to gather. Calls are answered Monday to Friday from 9 a.m. to 6 p.m. and Saturdays from 10 a.m. to 3 p.m.