How to Fill Out Your 2026 TD1 Form: A Plain-English Guide for Canadian Employees

Every new hire in Canada eventually faces the same two forms, folded into the onboarding package alongside the direct-deposit form and the benefits enrollment. The TD1 — officially the Personal Tax Credits Return — is not complicated, but it is badly named, and the instructions CRA prints on it are written for someone with considerably more patience than a person who started a new job this week.

This guide answers the questions the form itself does not: what it actually does, which lines are likely to apply to you, why there are two of them (federal and provincial), and what happens at the "more than one employer" checkbox if you have a side income or two concurrent jobs.

What the TD1 does, and what it does not do

The TD1 does one thing. It tells your employer how much income tax to withhold from each paycheque by specifying which non-refundable tax credits apply to your situation. A higher total on your TD1 means less tax withheld per period. It does not change your actual tax liability for the year — that is settled when you file your T1 return. It changes only the timing of when the government collects what you owe.

This distinction matters because the form is sometimes misunderstood as a way to reduce taxes rather than to pre-authorise withholding at the right rate. Claiming credits you are not entitled to produces a shortfall at filing, not a permanent saving. The opposite error — claiming nothing you're entitled to — means you lend the government money interest-free for twelve months and collect a refund in the spring. Neither outcome is catastrophic, but the TD1 exists precisely to avoid both.

The mechanism is a compression of what more complex withholding systems do in different ways. The United Kingdom's PAYE system encodes a tax code on the employee's record and the employer applies it to each pay cycle; Germany's Lohnsteuerklassen assign workers to one of six tax brackets based on household status. Canada's approach is simpler: the employee declares their credits once, the employer translates that into an adjusted withholding rate, and the system resets when circumstances change.

The forms: federal TD1, provincial TD1, and Quebec's TP-1015.3-V

There are two forms, not one. Confusion here is the most common first-day mistake.

The federal TD1 applies to federal income tax withholding and is the same document across the country. For 2026, the federal Basic Personal Amount (Line 1) is $16,452 for employees whose income is at or below $181,440. Employees earning above that threshold receive a reduced BPA, phasing linearly down to $14,829, with the full reduction applied at $258,482 and above. A minority of new hires will be in that range, but it is worth noting because the high-income phase-out that took effect in 2020 (the 2019 federal budget change) still generates some confusion in payroll setups.

The provincial TD1 is a separate form specific to your province of work. Ontario uses the TD1ON. Alberta uses the TD1AB. British Columbia uses the TD1BC. Each has its own Basic Personal Amount and its own provincial-specific credits.

Quebec is different. Employees whose province of work is Quebec do not complete a provincial TD1 at all. They complete the federal TD1 and Revenu Québec's TP-1015.3-V (Source Deductions Return). This distinction flows from Quebec's 1965 decision to establish its own pension plan — the QPP — outside the federal CPP framework, an institutional separation that produced a parallel provincial tax administration that has operated independently ever since. The TP-1015.3-V is not a cosmetic variant; it reflects a genuinely separate tax system administered by Revenu Québec rather than the CRA.

2026 Basic Personal Amounts by province

The most-bookmarked number in any TD1 post is the provincial BPA table. Here it is.

The federal and provincial amounts are independent. Both reduce your withholding, at their respective bracket rates. A new employee in Ontario claiming only the BPA on both forms will have the federal credit applied at 14% (the lowest federal bracket for 2026) and the Ontario credit applied at 5.05% (the lowest Ontario bracket). The combined effect is that the first $12,989 of Ontario income and the first $16,452 of federal income face effectively zero withholding.

Line by line: what applies to most people

The TD1 runs to twelve substantive lines on the federal form. The honest answer for a large majority of employees is that Line 1 is the only one that applies, and the rest can be left blank. That said, several lines matter for specific situations.

Line 1 — Basic Personal Amount. Everyone claims this. For 2026 federally, enter $16,452 (or the reduced amount if your net income will exceed $181,440 this year).

Line 2 — Age Amount. If you will be 65 or older at any point in 2026, you may claim up to $8,396. The amount begins to phase out at net income above $44,325.

Line 3 — Pension Income Amount. If you receive pension income (not CPP, OAS, or RRSP withdrawals — actual eligible pension income), you may claim up to $2,000 here. This line catches out more retirees returning to part-time work than it does traditional new hires.

Line 4 — Tuition Amount. Full-time post-secondary students may transfer up to $5,000 of their unused tuition credit to an employer for withholding purposes. If you are attending university or college this year, this line reduces the tax withheld during the months you are working.

Lines 5 and 6 — Disability Amount. For employees who have an approved T2201 Disability Tax Credit Certificate on file with CRA, either for themselves (Line 5) or for a dependant (Line 6).

Lines 7 through 10 — Spouse, eligible dependants, caregiver amounts. These apply when you are supporting a spouse or common-law partner with low or no income, a child under 18, or an infirm dependant. The calculations involve the dependant's expected net income, which requires an estimate at the start of the year.

Lines 11 and 12 — Additional credits. Amounts transferred from a spouse or dependant (Line 11), and deductions for living in a prescribed northern zone (Line 12).

Total claim amount. Add up every line that applies and enter the total in the final box. This is the number your employer plugs into the withholding formula.

The "additional tax to be withheld" box. If you know your total income from all sources will push you into a higher bracket than your employer's withholding would anticipate, you can request additional withholding here. This is useful for employees with significant investment income, rental income, or self-employment income that does not have tax withheld at source.

The multiple-employer box, and why it matters

At the bottom of both the federal TD1 and each provincial TD1 is a section you should read carefully if you hold more than one job concurrently or if you return to an employer partway through the year.

The Basic Personal Amount is a per-person credit, not a per-job credit. It can be claimed against one employer's withholding. If you claim it with two employers simultaneously, each will withhold less tax on the assumption that the BPA offsets a portion of your income from their end, but neither will know about the income from the other. The combined withholding will be too low. At filing, you will owe the shortfall, plus potentially a small arrears interest charge if the underpayment was large enough to attract CRA attention.

The fix is straightforward: with your second (or any subsequent concurrent) employer, check the box at the bottom of the TD1 indicating that you have claimed the BPA with another employer and are waiving it with this one. Your withholding from the second employer will be higher, but your April filing will not produce a surprise.

This is one of the mechanics that the employer-facing TD1 guide covers from the payroll-administrator perspective, including the multi-employer trap that produces year-end notices for employees who did not realise what the checkbox was for.

When to submit a new TD1

The form is not annual. You complete it when you start a job, and you are not required to file a new one unless your situation changes. Events that typically warrant a new TD1: you turn 65, you gain or lose a dependant, you become eligible for the Disability Tax Credit, you stop or start attending school, or you separate from a spouse whose income you were claiming. An employer cannot require you to submit a new form annually, though many prompt employees to review their claims during benefits enrollment cycles.

If your situation has not changed since your last filing, the existing form on record with your employer remains valid.

How the TD1 connects to your take-home pay

The form does not, on its own, tell you what your paycheque will look like. The withholding formula applies your total TD1 claim against your annualised salary, calculates federal and provincial income tax, then adds CPP (or QPP in Quebec) and EI contributions to arrive at total deductions. The resulting net pay depends on your salary, province, and pay frequency, none of which appear on the TD1 itself.

To see the actual dollar impact of your claim on your net pay, the Hibiscus take-home pay calculator handles the full withholding calculation by province, including Quebec's separate rate structure. Enter your salary and the TD1 total you are planning to claim and the calculator will show you the per-period net.

Hibiscus HR builds payroll and compliance tooling for Canadian SMBs, including automated TD1 management that keeps employee records current when personal amounts change and flags multi-employer situations before they become year-end problems. If you are an HR lead managing onboarding at scale, the employer-facing companion to this post covers the administrative workflow: TD1 form 2026: federal and provincial amounts for employers.