GST/HST NETFILE Access Code: Where to Find It and How to File Without a CRA Account
- Anamika Biswas
- 4 days ago
- 7 min read
Updated: 3 days ago
If you want to file your GST/HST return online using the Canada Revenue Agency's GST/HST NETFILE form, you will need a 4-digit GST/HST access code.
The access code is a security key used by the CRA to authenticate you when you use certain GST/HST filing methods without being signed in to a CRA account.
🟦 KEY POINT - Your GST/HST access code generally stays the same for every filing period unless you change it.
In this guide, we'll explain where to find your GST/HST NETFILE access code, how to change it, when you need it, and how you may be able to file without one.
🔵 What Is a GST/HST NETFILE Access Code?
A GST/HST access code is a 4-digit security code used for certain electronic GST/HST filing methods.
It is separate from your:
Business Number (BN)
GST/HST program account number
CRA account password
Other CRA sign-in credentials
CRA describes the access code as a personal security key used to authenticate you when you are not signed into a CRA account.
🟨 SECURITY NOTE - Keep your GST/HST access code secure. Do not provide it to anyone who is not authorized to use it.
🔷 Does the Access Code Change Every Filing Period?
Normally, no.
CRA states that your GST/HST access code stays the same for every filing period unless you change it.
For example, if your business files GST/HST quarterly, you generally don't need to obtain a new access code every quarter.
🔵 Where Can You Find Your GST/HST Access Code?
There are several ways to find, obtain or change your GST/HST access code.
🔷 1. Find Your Access Code in Your CRA Account
Since October 2025, business owners can find their GST/HST access code directly inside their CRA account.
Follow this path:
🟩 CRA ACCOUNT PATHSign in → Business account → GST/HST → Select your RT number → View return details
Your GST/HST access code should be available with the return details.
🔷 Important for Authorized Representatives
🟨 IMPORTANT FOR ACCOUNTANTS & BOOKKEEPERS - CRA states that representatives accessing a client's account through their representative account cannot see the GST/HST access code, regardless of their authorization level.
Therefore, when the code is required, the business owner may need to retrieve it directly from their own CRA business account.
🔷 2. Check Previous CRA Mail
You may already have received your GST/HST access code from CRA.
According to CRA, you may have received an access code by mail if:
You previously received a GST/HST filing package by mail, or
You are a non-resident and received an access code when registering for GST/HST.
🟩 HELPFUL TIP - Before changing your access code, check your previous GST/HST filing correspondence. The code you need may already be there.
🔷 3. Change Your GST/HST Access Code Online
If you don't know your existing access code or would prefer to create a new one, CRA provides an online option to change it.
To use the online process, you must have filed a GST/HST return for a reporting period ending within the last three years.
You'll need your Business Number and information from a previously filed GST/HST return.
CRA requires either:
🟢 Option A: Reporting period + Line 109 (net tax) if Line 109 was not $0.00
OR
🟢 Option B: Reporting period + confirmation number if you filed the return electronically.
You can then select a new access code for your future GST/HST returns.
🟦 GOOD TO KNOW - You generally don't have to change your access code for every return. Once established, the code stays the same unless you change it.
🔷 4. Get or Change Your Access Code by Phone
If you cannot access your CRA account or use the online service, CRA also provides a telephone option.
For businesses in Canada or the United States, CRA currently lists:
☎️ 1-800-959-5525
Different contact information applies to certain northern territories and callers outside Canada or the United States.
🔵 When Do You Need a GST/HST Access Code?
You do not need the 4-digit access code for every GST/HST filing method.
Filing Method | Access Code Required? |
Standalone GST/HST NETFILE form | 🟢 YES |
CRA account | 🔴 NO |
GST/HST Internet File Transfer through third-party software | 🟢 YES |
GST/HST TELEFILE | 🟢 YES |
Participating Canadian financial institution | 🔴 NO |
Mail, where applicable | 🔴 NO |
🟦 GOOD TO KNOWIf you cannot find your GST/HST access code, first determine whether the filing method you intend to use actually requires one.
🔵 Can You File GST/HST Without a CRA Account?
Yes.
You can use CRA's standalone GST/HST NETFILE form without signing into a CRA account.
However, you will need your 4-digit GST/HST access code.
Before starting, have the following ready:
🔹 Your 4-digit GST/HST access code
🔹 Your Business Number (BN)
🔹 Your reporting period's from and to dates
🔹 The information required to complete your GST/HST return
🟩 QUICK ANSWERNo CRA account? → You can use standalone GST/HST NETFILE → You'll need your 4-digit access code.
🔵 How to File Using the GST/HST NETFILE Form
Once your bookkeeping and GST/HST calculations are complete, you can proceed with the online filing process.
🔷 Step 1 — Open the GST/HST NETFILE Form
Go to CRA's official GST/HST NETFILE service.
CRA — GST/HST NETFILE
🔷 Step 2 — Enter Your Filing Information
Have the following information ready:
Business Number → 4-digit access code → Reporting-period dates
You'll then proceed to the GST/HST return information.
🔷 Step 3 — Enter Your GST/HST Return Amounts
Enter the applicable amounts from your completed GST/HST return.
Depending on your situation, these may include:
Sales and other revenue
GST/HST collected or collectible
Eligible Input Tax Credits (ITCs)
Adjustments
Net tax
If you have no amounts to report, CRA's NETFILE form also provides an option for filing a nil return.
🔷 Step 4 — Review Your Return
Before submitting, review everything carefully.
🟩 Check:
Reporting period → Sales → GST/HST collected → ITCs → Adjustments → Net tax
Make sure the amounts agree with your accounting records.
🔷 Step 5 — Certify and Submit
Once the information is correct, complete the certification and submit your GST/HST return.
After successful submission, CRA provides a 6-digit confirmation number.
🟩 IMPORTANT — SAVE THIS NUMBER - Keep the 6-digit confirmation number with your GST/HST records. It indicates that CRA has accepted the electronic return for processing.
🔵 Does Filing Through GST/HST NETFILE Pay Your Balance?
🔴 No.
Filing your GST/HST return and paying an amount owing are separate actions.
If your GST/HST return results in a balance owing, you still need to make the required payment using an accepted CRA payment method.
🟨 IMPORTANT - GST/HST return submitted ≠ GST/HST balance paid
Receiving a NETFILE confirmation number does not, by itself, mean that your GST/HST balance has been paid.
🔵 What If You Don't Have Your GST/HST Access Code?
First, determine whether you actually need one.
🟢 If you're using standalone GST/HST NETFILE:
You need the 4-digit access code.
🔵 If you're filing inside your CRA account:
You don't need the 4-digit access code.
If you need the code but cannot find it, your options include:
1️⃣ Check your CRA business account
↓
2️⃣ Check previous CRA correspondence
↓
3️⃣ Change your access code online
↓
4️⃣ Contact CRA
↓
5️⃣ Consider another filing method that doesn't require the code
🔵 GST/HST Access Code vs. Business Number
These are not the same thing.
A GST/HST program account may look like:
123456789 RT 0001
The Business Number and RT program account identify your GST/HST account.
Your 4-digit access code is a separate security key used to authenticate you for certain filing methods.
Information | Purpose |
Business Number (BN) | 9-digit business identifier |
GST/HST program account | BN + RT + reference number |
GST/HST access code | 4-digit security code |
🟦 REMEMBER - Business Number ≠ GST/HST access code
When using the standalone GST/HST NETFILE form, you'll need both your Business Number and your access code.
🔵 Frequently Asked Questions
🔷 How many digits is the GST/HST NETFILE access code?
The GST/HST access code is 4 digits.
🔷 Where can I find my GST/HST access code?
Since October 2025, business owners can find the access code in their CRA business account by selecting their GST/HST account and viewing the return details.
You may also have received your access code through previous CRA correspondence.
🔷 Can my accountant see my GST/HST access code?
Not through their representative account.
CRA states that representatives accessing a client's account through their representative account cannot see the access code regardless of their authorization level.
🔷 Can I change my GST/HST access code?
Yes.
If you meet CRA's requirements, you can use CRA's online service to change your GST/HST access code.
🔷 Do I need a new GST/HST access code every year?
No.
CRA states that your access code stays the same for every filing period unless you change it.
🔷 Can I use GST/HST NETFILE without a CRA account?
Yes.
The standalone GST/HST NETFILE form can be used without signing into a CRA account, but you'll need your 4-digit GST/HST access code.
🔷 Can I file through my CRA account without an access code?
Yes.
A GST/HST access code is not required when filing from within your CRA account.
🔷 What happens after I file through GST/HST NETFILE?
After successful submission, CRA provides a 6-digit confirmation number indicating that the return has been accepted for processing.
Keep this confirmation number with your business tax records.
🔵Need Help Preparing Your GST/HST Return?
Correct GST/HST filing starts with accurate bookkeeping. Finding your GST/HST access code is only one part of preparing a GST/HST return.
Before filing, businesses should make sure sales, GST/HST collected, eligible Input Tax Credits and applicable adjustments have been properly recorded.
Cloud Accounting & Tax Services Inc. (CLaTAX) provides bookkeeping, GST/HST and Canadian business tax services.
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