Calculating how much those extra costs will be can help you budget and decide whether to request relief. 

This article explains how CRA penalties and interest work, how you can estimate them (including sample calculations), and how to use online tools as rough calculators.

How CRA charges interest on late or unpaid balances

When you owe taxes or remittances and do not pay them by the due date, CRA starts charging interest from the day after the due date.

• Interest is compounded daily.
• CRA sets the interest rate every quarter, based on a prescribed rate.
• This interest applies to the unpaid tax, unpaid remittances (e.g. instalments), and even unpaid penalties themselves.

If you overpaid (CRA owes you a refund), CRA may pay you interest, but it is usually lower and only until the refund is issued or applied.

How CRA calculates penalties for filing late

In addition to interest, CRA may impose a late-filing penalty when you file your return after the deadline and you owe tax.

Here’s how the penalty works:

1. Base penalty is 5% of your balance owing for the tax year.
2. Then CRA adds 1% per full month the return is late, up to 12 months.
3. So if you’re 6 months late, that penalty is 5% + 6% = 11% of your balance owing, so long as 11% does not exceed the 12-month cap.
4. In more aggressive cases (e.g., repeat late filers), the penalty may be 10% base plus 2% per month, up to 20 months.

Note: The late-filing penalty is only charged if you have a balance owing; if CRA owes you a refund, you typically won’t get penalised for late filing.

How to estimate your penalty + interest: step-by-step

Here’s a process you can follow to approximate what you might owe, combining penalty and interest:

1. Determine your balance owing (the tax you still owe after credits, etc.).
2. Calculate the late-filing penalty:
   • Multiply the owed amount × 5% = base penalty
   • Add owed × (1% × number of full months late), up to 12 months
3. Calculate interest on the unpaid amount + penalty:
   • Use the daily compounding formula (or approximate with simple interest) from the day after the filing due date until your payment date
   • Use the effective quarterly CRA interest rate for that period
4. Add them together to get an estimate of total extra cost

Sample estimation

Suppose:

• Tax owed = $5,000
• You file 4 months late
• CRA interest rate in that quarter = 6% annually (0.06)
• You pay on the date you file

Late-filing penalty =
5% of $5,000 = $250
Plus 1% × 4 months = 4% of $5,000 = $200
Total penalty = $450

Interest ― approximate (not daily compounding for simplicity):
Amount on which interest accrues = $5,000 + $450 = $5,450
Interest for 4 months at 6% = $5,450 × 0.06 × (4/12) = $109

So rough estimate of additional cost = $450 + $109 = $559

In reality, daily compounding means actual interest would be slightly higher.

Instalment interest and penalties

If you’re required to pay tax by instalments and you pay late or less than required, CRA may charge:

• Instalment interest, compounded daily, based on the prescribed rate.
• A penalty if the instalment interest for the year exceeds $1,000. CRA uses a formula comparing “interest if no instalments were made” versus “actual interest” and picks the higher or checks a flat $1,000.

The instalment penalty calculation is more complex. But for many taxpayers, interest is the bigger component.

Using online calculators as a guide

You can use third-party tools as rough estimators, but always cross-check your results with CRA rules.

1. CoPilot Tax Penalty Calculator lets you enter the owed amount, filing date, and payment date to estimate penalties and interest.
2. CRACalculators.ca CRA Interest Calculator lets you input the amount due, due date, and payment date to estimate interest.
3. Streamline Accounting’s CRA Interest Calculator allows a similar input of owed amount, interest rate, and days overdue.

These are for estimation only and not official CRA tools.

When CRA may waive or cancel penalties/interest

CRA may cancel or waive penalties or interest under taxpayer relief provisions if you can show you couldn’t meet obligations due to circumstances beyond your control (serious illness, natural disaster, etc.).

Requests typically must relate to a period within the last 10 years.

You can use CRA’s My Account or Represent a Client to request relief or a statement of interest. 

However, several approved third-party providers allow you to make secure credit card payments on your behalf. 

Here is a clear, step-by-step look at how to pay the CRA with a credit card in 2025, what options exist, and what to watch out for.

Can you pay the CRA directly with a credit card?

The CRA does not accept direct credit card payments through its online system. 

According to canada.ca, the CRA’s official payment platforms, such as My Payment and pre-authorized debit, only support debit cards (Visa Debit or Debit Mastercard).

To pay by credit card, you must use a third-party payment processor that partners with the CRA. 

These companies collect your payment information, charge your credit card, and then forward the funds and payment details to the CRA. 

The transaction is secure, but you should always use a trusted service.

Which third-party companies allow CRA credit card payments?

As of 2025, two of the main CRA-approved providers are:

• PaySimply – lets you pay CRA balances using Visa, Mastercard, or American Express. Payments can also be made via e-Transfer or PayPal. PaySimply charges a processing fee, usually around 2.5%, and payments typically take one to three business days to process.
• Plastiq – accepts most major credit cards and allows payments for CRA income tax, GST/HST, corporate tax, and installment amounts. Processing fees are similar, and the payment is remitted to CRA within two to three business days.

While the CRA does not recommend one provider over another, both are listed on its official website as authorized payment services.

How to pay the CRA with a credit card in 2025

To make a credit card payment, you will go through a short verification and payment process. The general steps are:

1. Visit a third-party provider’s website such as PaySimply or Plastiq.
2. Select “CRA Payment.” Choose the type of payment—such as personal income tax, business installment, GST/HST, or payroll remittance.
3. Enter your account details. For personal taxes, use your Social Insurance Number (SIN). For business accounts, enter your business number.
4. Enter payment information. Provide your credit card details, the payment amount, and the tax year you want to pay.
5. Confirm and pay. Once you authorize the payment, the provider charges your card and sends the funds directly to CRA.
6. Save your confirmation receipt. CRA processing can take a few days, so keep your proof of payment until the payment appears in your CRA My Account.

According to canada.ca, most online payments are processed within three business days.

What types of CRA payments can you make by credit card?

You can pay several types of CRA balances using a credit card through these providers. These include:

1. Personal income tax (T1 returns)
2. Business income tax (T2)
3. GST/HST remittances
4. Payroll source deductions
5. Installment payments
6. Balances owing on reassessments or notices

Each service will ask you to select the correct tax category when you set up the payment. 

Make sure the tax year and account type are correct to avoid delays.

How long does it take for CRA to receive your payment?

CRA processing time depends on when and how you pay. 

Third-party payments usually take between two and three business days to post. During peak filing season, it may take longer.

If you are close to a tax deadline, CRA recommends using online banking or My Payment via debit to avoid late interest. 

Late payments, even by one day, can lead to penalties and daily compounding interest.

You can confirm that CRA received your payment by logging into CRA My Account or by calling CRA’s general enquiries line.

What to know before paying CRA with a credit card

Paying with a credit card offers convenience and may earn you rewards, but there are a few key points to consider:

1. Processing fees: Third-party providers charge a fee of around 2% to 2.5%, which may outweigh any points or cashback benefits.
2. Interest costs: If you do not pay off your credit card balance promptly, you could incur high interest rates, often exceeding 20%.
3. Processing delays: The CRA does not mark your payment as received until it arrives in its system, which may take several days.
4. No refunds from CRA for service fees: If you make an error, CRA cannot refund the third-party processing charge.

Always schedule your payment early and verify that the service provider confirms the remittance date.

Is paying the CRA with a credit card worth it?

Paying your taxes with a credit card can be useful if you need extra time to manage cash flow or if you want to collect travel points. 

However, because of the fees and potential delays, many taxpayers use online banking or pre-authorized debit instead.

According to rates.ca, credit card payments are best for those who can repay their balance immediately and who value the convenience of digital transactions.

A review is not the same as an audit; it is often a routine check. 

This article explains what a review letter means, the types of reviews CRA conducts, what steps you should take, typical timelines, and tips to respond effectively.

What is a CRA review letter?

A CRA review letter notifies you that your income tax return has been selected for review. 

The letter will request additional documentation (receipts, statements, proof of deductions, etc.) related to specific items on your return.

CRA carries out millions of reviews each year, typically to confirm that amounts for income, credits, or deductions are supported by records.

CRA emphasizes that “review” does not necessarily imply wrongdoing. Most reviews are routine, and many returns are selected randomly.

Types of CRA review programs

CRA has multiple review mechanisms under which they might issue a letter.

Some common review programs include:

1. Pre-assessment Review Program: Review before Notice of Assessment is issued.
2. Processing Review Program: Review after assessment, but during normal processing.
3. Request Verification Program: Review of submitted changes or adjustments.
4. Refund Examination Program: Reviews focused on refund claims to ensure eligibility.
5. Matching Program: CRA compares your return data with third-party data (e.g., T4, T5 slips) to find discrepancies.

Each program has different triggers and may focus on different parts of your tax return.

Why did you get a review letter?

Your return could be flagged for review for several reasons:

1. Data inconsistencies between what you reported and what CRA or third parties have on file (e.g., a slip, another return).
2. Large or unusual claims for deductions or credits (for example, medical, moving, tuition, rental expenses).
3. Self-employment or side income that is harder to verify.
4. Repetitive errors or past adjustments in previous years.
5. Random selection. CRA reviews about 3 million returns annually.

Steps to do when you receive a CRA review letter

1. Read the letter thoroughly
   Note the reference number (case number) at the top, the tax year in question, and exactly what CRA is asking for.
2. Gather the requested documents
   Collect all receipts, slips, records, contracts, or explanations that support your claims. If you cannot find a specific document, you can provide a detailed written explanation.
3. Submit your response on time
   There is usually a 30-day deadline to respond, as indicated in the letter. If you need more time, contact CRA using the phone number included in the letter.
4. Use CRA’s online “Submit documents” tool
   You or your authorized representative can upload scanned documents via My Account or Represent a Client, referencing your review case number.
5. Keep copies and track communication
   Retain copies of all submitted documents and note dates when you respond or call CRA, along with the name or ID of the CRA agent.
6. Follow up if needed
   If you don’t hear from CRA after a reasonable period, you may call the number in the letter or use CRA’s general enquiry lines.

What happens after you respond

1. CRA will review the information you provided. If satisfied, they will complete their review without adjusting your return.
2. If they find discrepancies, they may issue a notice of reassessment explaining changes to your return.
3. You will receive a letter or notice telling you the outcome and any tax owing or refund adjustment.
4. If you disagree with the reassessment, you have a right to file an objection (appeal) within 90 days (or other prescribed period).

Timelines and delays

1. CRA does not guarantee that reviews will be completed quickly. Backlogs or complexity may introduce delays.
2. Some reviews may take several weeks to months, depending on the volume and complexity of documentation requested.
3. Be aware that if you fail to respond within the deadline, CRA may adjust your return based on the information it already has.

How to respond effectively

1. Respond as fast as you can. Timeliness helps avoid adverse adjustments.
2. Provide clear, legible copies of documents.
3. Use bundles: label, index, and match documents to the line item CRA is asking about.
4. Be honest. If you genuinely don’t have a receipt, explain why and provide alternative evidence.
5. If uncertain, consider getting help from a tax professional.
6. Maintain records: Always keep all tax records for at least six years, as CRA may audit or review years beyond the one under review. 

It acts as a security feature that verifies your identity when you use certified tax software to send your return directly to the Canada Revenue Agency (CRA). 

Many Canadians preparing their taxes each year wonder where to find this code or how to get a new one. 

This guide explains everything you need to know about your CRA NetFile Access Code, where it appears, and what to do if you’ve lost it.

What Is a CRA NetFile Access Code?

The CRA NetFile Access Code (NAC) is an eight-character combination of numbers and letters used to confirm your identity when you file your tax return online through NETFILE-certified software. 

It allows the CRA to connect your new return to your existing tax record safely.

This code ensures that only you or someone authorized by you can file your personal income tax return electronically. 

You don’t need the access code to view your information through My Account, but it is required when submitting your return directly using NETFILE. 

Where Can You Find Your CRA NetFile Access Code?

You can find your NetFile Access Code on your Notice of Assessment (NOA) from the previous tax year. 

Specifically, it is printed on the right-hand side of the first page of your NOA, usually near the top.

If you filed online last year, CRA automatically included the code in your notice, whether you received it electronically or by mail. 

For those who filed on paper, your NOA will still include the code once CRA processes the return.

The NOA can be accessed in several ways:

1. CRA My Account – Log in to your account and select your previous year’s NOA to find the code.
2. Mail copy – If you received your NOA by mail, look for the code on the first page.
3. Email notification – If you receive CRA correspondence electronically, you’ll find the code by opening the NOA through your secure CRA portal.

If you cannot find your NOA, you can still file your taxes without the code in most cases, though CRA recommends using it for a smoother process.

How to Retrieve Your CRA NetFile Access Code Online

If you no longer have your previous year’s Notice of Assessment, you can retrieve the code directly through the CRA My Account portal.

Follow these steps:

1. Go to the CRA sign-in page.
2. Sign in using your CRA User ID or Sign-In Partner (your online banking credentials).
3. Once logged in, open the “Tax Returns” or “Notices of Assessment” section.
4. Select your most recent NOA (for example, 2024 if filing for 2025).
5. Look for the section labeled “Access Code” on the right-hand side of the page.

If your NOA is not available yet or you’ve never filed electronically, you may not see a code listed. 

In that case, CRA will verify your identity differently when you file. (canada.ca)

Can You File Without the CRA NetFile Access Code?

Yes, you can still file your return without the NetFile Access Code in most cases. 

When prompted for the code by your NETFILE-certified software, simply leave the field blank.

However, CRA encourages taxpayers to use it whenever possible. 

Without the code, you may need to provide extra information from your prior year’s return, such as your total income, for verification. 

Using the access code simply makes the process faster and more secure.

Tax programs like TurboTax, Wealthsimple, and H&R Block include specific steps for entering your NetFile Access Code if available, or instructions for proceeding without it.

What If You Lost Your CRA NetFile Access Code?

If you’ve misplaced your code or your NOA, don’t worry. CRA does not issue a new code upon request. Instead, you can:

1. Retrieve it from your CRA My Account as described above.
2. File your tax return without the code by leaving the field blank in your tax software.
3. Contact CRA if you cannot access your NOA or need to confirm your identity through alternative means.

The CRA’s Individual Income Tax Enquiries line (1-800-959-8281) can guide you through your filing options if you have difficulty accessing your documents.

How to Avoid Losing Your Access Code in the Future

To prevent issues next year, make sure you:

1. Keep a secure digital copy of your Notice of Assessment each year.
2. Enable Email Notifications in CRA My Account so you never miss correspondence.
3. Store your NOA or access code in a password-protected file or document vault.
4. Register for CRA My Account early, which provides permanent digital access to all your future NOAs and tax data.

CRA also recommends avoiding public Wi-Fi or shared devices when accessing tax information online to protect against identity theft.

When Is the CRA NetFile System Open?

The NETFILE service is typically open from mid-February to late January of the following year. 

For example, for the 2025 tax season, it will open in February 2025 for 2024 returns. 

You can use your NetFile Access Code anytime during this period to file or refile your return.

Whether you need a copy for a mortgage, loan, or future filing, knowing exactly where to find it on the CRA website saves time and confusion.

What is the T1 General Form on the CRA Website?

The T1 General form is the summary of your yearly tax return filed with CRA. 

It includes your income, deductions, non-refundable credits, and the final tax balance or refund amount.

This form is part of your tax package, available through the CRA website for each province and tax year. 

When you file online through certified software or directly by paper, CRA stores your T1 information in your account.

If you have already filed, you can access your return and all related details by signing into CRA My Account — the agency’s secure online portal.

Where Can You Find the T1 General Form on the CRA Website?

You can find and download the T1 General form from the official CRA Forms and Publications page. Here’s how:

1. Go to canada.ca/taxes
2. Click “Forms and publications” under the “Tax resources” section.
3. Select “Income tax package” for the year you need.
4. Choose your province or territory of residence.
5. Download the “T1 General Income Tax and Benefit Return” and any supporting schedules.

Each tax package includes instructions, schedules, and worksheets that correspond to the T1 General for that year. 

CRA updates these packages annually, usually in January before the new filing season.

How to Access Your Filed T1 General Through CRA My Account

If you’ve already filed your taxes, you can easily retrieve your T1 through CRA’s online portal:

1. Visit the CRA sign-in page.
2. Choose “Sign in with CRA user ID and password” or use your online banking (Sign-In Partner).
3. Once signed in, click “Tax returns” or “Tax returns and documents.”
4. Select the tax year you want to view.
5. Choose “View” or “Download” to access your T1 General return.

The document is available as a PDF and can be printed for official use. You can typically access up to 11 years of past returns online.

What if You Can’t Find the T1 General in CRA My Account?

Sometimes the full T1 return doesn’t appear online. Instead, CRA might display a Proof of Income Statement, which summarizes key details from your T1.

If your T1 General is missing:

1. Check if you filed through paper or electronic means.
2. Ensure your return has been assessed by CRA — unassessed returns won’t appear.
3. Try downloading your Proof of Income Statement (Option C printout), which most lenders accept as proof of filing.
4. If still unavailable, call CRA’s Individual Income Tax Enquiries line to request a mailed copy. 

Can You Reprint a Previous T1 General Form?

Yes. Once your return has been assessed, you can reprint your T1 General or proof of income anytime. 

Simply log in to CRA My Account, navigate to the desired year, and print the PDF.

If your return was filed using tax software such as TurboTax, Wealthsimple, or H&R Block, you can also retrieve a copy from their online portals.

For older returns (more than 11 years old), you may have to submit a written request or call CRA directly to obtain archived information.

Why You May Need Your T1 General

Your T1 General form is a key financial document used for:

1. Applying for mortgages or personal loans
2. Proving income for government benefits or child support
3. Correcting or amending past tax filings using Form T1-ADJ
4. Verifying income when applying for immigration or student aid programs

Because of its importance, keeping both a digital and printed copy of your most recent T1 return is strongly recommended.

Is It Safe to Access Your T1 on the CRA Website?

Yes. The CRA website and My Account portal are protected by secure encryption and multi-step authentication.

You’ll receive a one-time security code by mail or phone when registering for full access.

To protect your data:

• Always log out after viewing your return
• Avoid using public Wi-Fi when accessing CRA services
• Never share your login credentials, even with your tax preparer

CRA also allows you to set up email notifications to alert you whenever changes are made to your account. 

If you use CRA My Account, you can view, download, or reference your T1 for current and past years. 

This guide will show you exactly how to get into My Account and locate your T1 General.

What is CRA My Account and why use it?

CRA’s My Account is an online portal that allows individuals to view and manage their personal income tax and benefit information.

Through My Account, you can:

1. View notices of assessment or reassessment
2. Change your address, marital status, and contact info
3. View your Proof of Income / T1 return documents
4. Access tax slips, benefit and credit information
5. Submit documents, track files, manage electronic correspondence, etc.

To use My Account, you must have a Social Insurance Number (SIN) and a previously filed and assessed income tax return (current or earlier) for identity verification.

Step 1: Sign in or register to My Account

1. Go to the CRA “Sign in to your CRA account” page.
2. You’ll see options to sign in by CRA user ID & password or using a Sign-In Partner (your online banking credentials, if your bank participates).
3. If you don’t yet have a My Account, click “Register for a CRA account”. You will need to verify your identity, which may involve receiving a security code by mail or completing document verification.

Once registered and signed in, you’ll have either limited access or full access. Full access requires completing identity validation (e.g., entering a security code).

Step 2: Go to the T1 / Tax Returns section

Once inside My Account:

1. Locate the menu or dashboard section labelled “Tax returns” or “Tax returns and documents”. Wealthsimple notes you can find the T1 under “Tax returns view” in My Account.
2. In that section, you should see a list of tax years for which you have filed (usually up to the past 11 years) and options to view or download your T1 General return.
3. If you don’t see your full T1, you may see a Proof of Income statement or summary of your return instead. The CRA often displays a summarized version if full documents are no longer available.

Some users report that their full T1 isn’t always visible, but they can access related versions like “Proof of income.”

Step 3: Download or view your T1 General

After locating the correct year:

• Click View or Download to open a PDF or formatted version of your T1 return.
• Save or print the document for your records. Many tax disclosure processes, lenders, or service providers may request a copy.
• Note: The version you see may include supporting schedules and attachments depending on what was submitted.

If the full return is not available, the Proof of Income statement can serve as partial evidence for income and tax amounts.

Troubleshooting and tips for access

1. Security code issues: If you can’t get the one-time passcode or your phone number has changed, you may need to contact CRA for help.
2. Locked account: If your account is locked, you’ll need to verify your identity with CRA (possibly by phone) to regain access.
3. Missing tax year: If a particular year’s T1 is not in the list, it may be too old or archived. You can request a copy via CRA’s “Contact Us” options.
4. Authorized access for others: To let someone (e.g. tax preparer) view your return, use Represent a Client and authorize them. You cannot simply share My Account login.
5. Browser compatibility: Use a modern browser. Some CRA pages may not display fully in older browsers.

It reports all sources of income, deductions, credits and determines whether you owe taxes or will receive a refund. 

Knowing how to download, fill out, and submit the T1 properly is essential for every Canadian taxpayer.

Where to download the T1 General form from CRA

You can obtain the T1 General form and related tax packages directly from the Canada Revenue Agency (CRA) website. 

Use the “Forms and publications” section to locate the correct tax year package.

To do so:

1. Visit “All personal income tax packages” on Canada.ca, and select your province or territory for the relevant year.
2. The tax package includes the T1 General return, federal schedules, provincial schedules, and guides.
3. You may download a fillable PDF version if you want to fill it out on your computer before printing or submitting.

Also, once you file your return, if you used online tax software, you can often download a PDF copy of your filed return. 

For example, H&R Block lets you save the return PDF after filing.

Understanding the structure of the T1 General form

The T1 General is organized into several key parts:

1. Identification and personal information (name, address, Social Insurance Number, province of residence)
2. Income section listing all sources: employment, self-employment, interest, dividends, capital gains, rental income, foreign income, etc.
3. Deductions and adjustments: for example, RRSP contributions, child care, moving expenses, etc.
4. Taxable income & tax calculation: applying federal and provincial tax rates, and then subtracting credits
5. Refund or balance owing: final section where you determine if you owe CRA money or will get a refund
6. Schedules and provincial forms: many provinces have extra forms (e.g. Form ON428 for Ontario) that you must attach if you reside there.

The return also includes worksheets and supporting schedules (for credits, transfers, capital gains, etc.) as part of the package.

How to complete and file the T1 General

Here’s how to use the T1 General:

1. Gather your slips and documents
   Collect T4 slips from employers, T5s, RRSP receipts, medical receipts, charitable donation receipts, etc.
2. Fill in sections step by step
   Enter identification info, report all income sources, claim eligible deductions, compute taxable income, apply credits, and complete refund/balance section.
3. Attach schedules and provincial forms
   If you’re in a province with a separate tax form (e.g., ON428 in Ontario), include that with your federal return.
4. Choose how to submit
   • Online: Use NETFILE-certified software to submit your T1 electronically. Many tax software tools let you auto-fill parts of the return using CRA data.
   • By mail: Print and mail the return to the CRA office for your province.
   • In person/drop-off: Some local tax offices or service centres accept paper returns.
5. Pay any owing tax by the deadline
   Even if your filing deadline is extended (e.g. for self-employed taxpayers), any taxes owed are due by April 30 (for most individuals).