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EV charging as a vehicle expense in Canada
Where electricity fits among vehicle costs, what to record for each charge, the home-charging attribution problem, and what public-network receipts give you.
If you deduct the business-use share of your vehicle’s actual costs, fuel is usually the biggest line. For an electric car, that line is electricity, and electricity is harder to document than a tank of gas. Here is how charging fits into a Canadian vehicle expense claim, and what to write down so the number holds up.
Where charging sits in the claim
The self-employed deduct vehicle expenses on T2125 by totalling the actual costs of running the vehicle and multiplying by the business-use percentage from the logbook. The CRA’s list of eligible costs includes fuel and oil. For an electric vehicle, the energy that moves the car is electricity, and it takes the place of fuel in that list. The rest of the method is unchanged: insurance, maintenance, licence, interest or lease costs, and capital cost allowance are added up, and the business-use share is what you deduct.
Employees with a T2200 who deduct expenses follow the same logic. Employees on a per-kilometre allowance do not deduct anything, so the charging cost does not matter for tax; the allowance is meant to cover it.
Ask your accountant how they want the electricity line presented. The principle is settled; the presentation varies.
What to record for each charge
Treat a charging session the way you treat a fill-up. For each one, note:
- The date.
- Where you charged (home, a named public network, a workplace).
- The energy delivered, in kWh.
- The price per kWh, or the total paid if the network bills by time.
- The total cost.
- The odometer, if you can.
The kWh figure is the one people skip, and it is the one that makes the rest checkable. Two charges of $18 tell you nothing about consumption. Two charges of 42 kWh at $0.43 tell you how far the car should have gone on that energy, and an accountant or auditor can compare it with the kilometres in the log.
Public networks
Public charging is the easy case. The network knows who you are, when you plugged in, how many kWh it delivered and what it charged. Most networks keep a session history in their app or web account and can produce a monthly statement. Download those at year end and keep them with the logbook. A receipt from a public network is third-party evidence, the same as a gas station receipt, and it needs no further explanation.
One wrinkle: some networks bill by the minute rather than by the kWh, and some add idle fees. Record what was billed. If the statement shows kWh as well, record that too.
The home-charging problem
Most EV owners charge at home most of the time, and home charging has no receipt. The electricity is on your household hydro bill, mixed in with the fridge and the furnace. The question is how much of that bill belongs to the car.
There are three ways to answer it, in descending order of strength.
A separate meter or a smart charger. A dedicated meter on the charging circuit, or a wall charger that logs kWh per session, gives you a direct measurement. The charger’s session log is your record. Multiply kWh by the rate on your hydro bill for that period and you have the cost.
The car’s own data. Most EVs report energy added per charge, or total energy consumed, in the dashboard or a companion app. Note the kWh at each home charge. It is less precise than a meter because it measures energy into the battery rather than energy drawn from the wall (charging loses something to heat), but it is a measurement, and it is consistent.
An estimate from consumption. If you know the car’s average consumption (say 18 kWh per 100 km) and the kilometres driven, you can estimate energy used and price it at your hydro rate. This is the weakest method because it is derived rather than measured. If you use it, show the arithmetic and keep the consumption figure the car reported.
Whichever method you use, keep the hydro bills. They establish the rate per kWh, and time-of-use rates mean the rate depends on when you charged. If you charge overnight on an off-peak rate, say so, and price it accordingly.
Do not double-count
The business-use percentage already prorates the electricity line. If you charged 2,000 kWh at home during the year and 40% of your driving was business, you deduct 40% of the cost of those 2,000 kWh. You do not also try to separate “business charges” from “personal charges” and deduct only the former at 100%. Pick the method that matches the rest of the claim, which for most people is the percentage.
The exception is a charge that can be tied to a single business trip, such as a public fast charge on a long client visit, when your accountant prefers to treat it like business parking. Ask before doing that; consistency matters more than the method.
Home charger installation
The cost of installing a home charger is a capital item, not an operating expense. Whether and how it can be claimed depends on your situation and on any provincial programs you used. That is a question for your accountant, not for the logbook.
Putting it together at year end
Your file for the electricity line should contain: the public-network statements, the home kWh record (meter, charger log, or car readings), the hydro bills for the year, and a one-page summary totalling kWh and dollars. The logbook supplies the business-use percentage. The product of the two is the deduction.
Odie includes a Charging expense category alongside gas, parking, tolls, maintenance and other. A charging entry takes kWh and a price per kWh, can hold a receipt photo, and appears in the expenses section of the year report, where the business-use percentage from the log is applied to the total.
Sources
Written by the Odie team. Not tax advice; your accountant knows your situation.