FinancialFebruary 17, 20268 min read

How to File the RC381 Inter-Provincial Transfer of

By WelcomeAide Team

Map of Canadian provinces with arrows showing movement between provinces for work

What Is Form RC381?

Quick tip: download the official RC381 first, then fill it while following this guide: Download RC381 form (official CRA).

The RC381 Inter-Provincial Calculation for CPP and EI Overpayments is a CRA form used when you have earned income in more than one Canadian province or territory during a single tax year. This situation is common among newcomers who relocate within Canada for work — for example, moving from Toronto, Ontario, to Vancouver, British Columbia, or taking a job in Alberta while living in Saskatchewan.

The form helps you correctly calculate your Canada Pension Plan (CPP) contributions and Employment Insurance (EI) premiums when you have had employers in different provinces deduct these amounts. Without this form, you might end up overpaying CPP or EI — or not getting the credit you deserve for contributions already made.

Why Newcomers Commonly Need This Form

Newcomers to Canada often move between provinces during their first few years as they search for the best opportunities. Common scenarios include:

Starting a job in one province, then getting a better offer and moving mid-year
Working remotely for an employer in one province while living in another
Taking seasonal work in a different province (e.g., working in Alberta's oil sector during summer, then returning to British Columbia)
Being employed by different companies in different provinces during the year

Person loading a moving truck with boxes and a Canadian province welcome sign in the background

Understanding CPP and EI Basics

Canada Pension Plan (CPP)

CPP is a mandatory retirement pension that most Canadian workers contribute to. Both you and your employer contribute a percentage of your earnings (up to a maximum annual amount). For 2026, the key numbers are approximately:

Employee contribution rate: 5.95% of pensionable earnings
Maximum annual employee contribution: approximately $4,000-$4,300 (exact amount set annually)
Basic exemption: $3,500 (you don't contribute on the first $3,500 of earnings)

Note: If you live in Quebec, the equivalent is the Quebec Pension Plan (QPP), which has different rates.

Employment Insurance (EI)

EI provides temporary income support if you lose your job, get sick, or take parental leave. Contributions are:

Employee premium rate: approximately 1.64% of insurable earnings (1.32% in Quebec, since Quebec has its own parental insurance plan — QPIP)
Maximum annual employee premium: approximately $1,049 (varies by year)

When Do You Need the RC381?

You need to file the RC381 with your T1 tax return if:

You had two or more employers in different provinces and each deducted CPP or EI based on the assumption that they were your only employer
You overpaid CPP or EI because multiple employers each deducted contributions up to or near the annual maximum
You worked in Quebec and another province during the same year (since Quebec has QPP instead of CPP and QPIP instead of the federal portion of EI)

Step-by-Step: Completing the RC381

Step 1: Gather Your T4 Slips

You will need all your T4 slips (Statement of Remuneration Paid) from every employer you had during the year. Each T4 shows:

Box 14: Employment income
Box 16: Employee CPP contributions
Box 18: Employee EI premiums
Box 10: Province of employment

Step 2: Identify Your Province of Residence on December 31

Your province of residence as of December 31 of the tax year determines which provincial tax rates apply to you. This is important because provincial tax rates vary significantly across Canada.

Step 3: Complete the CPP Section

In the CPP section of the RC381:

List each employer and the province of employment
Enter the pensionable earnings from each T4
Enter the CPP contributions deducted by each employer
The form calculates your total required CPP contribution based on your combined earnings (up to the annual maximum pensionable earnings)
Compare this to the total CPP actually deducted across all employers
If you overpaid, the excess is claimed as a credit on your T1 return

Sample T4 slip with highlighted boxes showing CPP and EI contribution amounts

Step 4: Complete the EI Section

Similarly, for the EI section:

List each employer and the insurable earnings
Enter the EI premiums deducted by each employer
Calculate the maximum EI premium you should have paid for the year
Claim any overpayment as a credit

Step 5: Transfer Amounts to Your T1 Return

The RC381 tells you the exact amounts to enter on specific lines of your T1 return:

CPP overpayment goes to Line 44800
EI overpayment goes to Line 45000

These overpayments reduce your tax owing or increase your refund.

Special Situations

Quebec and Non-Quebec Employment

If you worked in both Quebec and another province, the RC381 is especially important because:

Quebec uses the QPP instead of CPP — the contribution rates and maximums differ
Quebec has the QPIP (Quebec Parental Insurance Plan), which means EI premiums are lower in Quebec
You may need to file both a federal T1 return and a Quebec TP-1 return

Self-Employment in Multiple Provinces

If you were self-employed and operated in multiple provinces, the CPP calculations are different because self-employed individuals pay both the employee and employer portions. The RC381 helps sort out the correct total contribution.

Part-Year Residents

If you are a newcomer who arrived in Canada mid-year and then moved between provinces, your situation requires careful handling. You are a part-year resident, and your CPP and EI obligations only apply to income earned while you were a Canadian resident.

Common Mistakes

Not filing the RC381 at all: If you worked in multiple provinces and had CPP/EI deducted by each employer, you likely overpaid. File the form to get your money back.
Confusing province of employment with province of residence: Your T4 shows the province where you worked (Box 10), not necessarily where you lived. These can be different.
Forgetting about Quebec specifics: If any of your employment was in Quebec, the calculations are more complex. Double-check QPP vs. CPP amounts.
Not claiming the overpayment: The CRA will not automatically refund CPP/EI overpayments. You must calculate and claim them on your return.

Tax Software and the RC381

The good news is that most Canadian tax software (like Wealthsimple Tax, TurboTax, or H&R Block) will automatically calculate the RC381 when you enter T4 slips from different provinces. The software detects the different provinces of employment and generates the form for you.

However, it's still useful to understand the form so you can verify that the software did it correctly. Always check that the CPP and EI amounts on your completed return match what your T4 slips show.

Where to Get Help

If you are confused about inter-provincial tax calculations, you can:

Contact the CRA at 1-800-959-8281 for individual tax questions
Visit a free Community Volunteer Income Tax Program (CVITP) clinic — these are available across Canada and specifically help people with low or modest incomes file their taxes
Use CRA-certified tax software that handles the calculations automatically

Moving between provinces is a normal part of building your life in Canada. Don't let the complexity of inter-provincial tax rules discourage you — with the RC381 and the right tools, you can ensure you are paying the correct amount and not leaving money on the table.

Download This Form

Before you submit anything, download the latest official file here: Download RC381 form (official CRA). Always use the latest version.

Related internal guides

Official external resources

Beyond the RC381: Accessing Support in Your New Province

While filing the RC381 is a crucial step for transferring social assistance information between provinces, it's vital to understand that it facilitates data transfer, not automatic benefit continuation. Upon arriving in your new province, you will still need to formally apply for social assistance programs specific to that jurisdiction. Each Canadian province and territory operates its own unique support systems, with varying eligibility criteria, benefit amounts, and application processes.

To ensure a smooth transition and continuous support, we strongly

Beyond the RC381: Your Checklist for a Smooth Provincial Transition

While filing the RC381 is a crucial step for managing your taxes after an inter-provincial move, it's just one piece of the puzzle. As a newcomer, understanding the broader administrative tasks involved will ensure a smoother transition to your new home province. Here's what else you'll need to consider:

Healthcare Coverage

Each Canadian province and territory has its own health insurance plan. It's vital to apply for your new provincial health card as soon as you arrive and meet residency requirements. Be aware that most provinces have a waiting period (typically up to three months) before you become eligible for full coverage. During this period, it's highly recommended to maintain private health insurance. You can find general information on provincial healthcare systems on the Government of Canada's website, and then navigate to your specific province's health ministry for application details.

Driver's License and Vehicle Registration

If you have a driver's license from another Canadian province, you'll need to transfer it to your new province within a specific timeframe (often 30 to 90 days). The process usually involves presenting your current license and proof of residency. Similarly, if you own a vehicle, you'll need to re-register it in...

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