Key takeaways
- A CRA payroll account is the
RPprogram account hanging off your 9-digit Business Number — the full identifier reads12345 6789 RP0001, and the same BN can holdRP0002,RP0003for separate payroll cycles. - The registration form asks for three distinct address fields, not one — physical location, mailing address, and books-and-records address. They're allowed to differ; most small employers point all three at the same Canadian street address to keep CRA records aligned.
- Business Registration Online (BRO) opens the RP account in roughly 15 minutes; My Business Account adds the same
RPsuffix to an existing BN in even less. Paper Form RC1 routes to the Sudbury Tax Centre, 1050 Notre Dame Avenue, Sudbury ON P3A 5C1, Canada. - The address on the RP file is not the address on the T4 slip. T4 slips carry the employer's legal address as printed for the employee — those can match, but they're separate records. The CRA uses the RP file address to mail PD7A remittance statements, audit letters, and notices of assessment.
Short answer
To open a Canadian Revenue Agency payroll program account, you register either through Business Registration Online (BRO) or — if you already have a Business Number — by adding the RP suffix inside the CRA My Business Account portal under "Profile" or "Manage addresses." The form asks for three addresses: the physical location of the business, the mailing address for CRA correspondence, and the books-and-records address where employment records live. All three must sit inside Canada and accept registered mail; a PO box satisfies none of them. The fastest sequence is BRO online before your first paycheque clears, with a Canadian street address that can be used identically across all three fields.
The rest of this guide walks through what each address field actually controls, when the Sudbury Tax Centre comes into play, and how non-resident employers register a payroll account from outside Canada.
What an RP payroll account is — and how the BN suffix works
The Business Number is one 9-digit identifier the CRA assigns to your business. Program accounts attach to it via two-letter suffixes — RT for GST/HST, RC for corporate income tax, RM for import/export, and RP for payroll. The full payroll account number reads:
12345 6789 RP0001
The trailing four digits are a reference number for that specific payroll account under your BN. An employer with two distinct payroll cycles — for example a corporate parent and a wholly-owned subsidiary's deductions running on different schedules — would carry RP0001 and RP0002 under the same BN. Each RP reference number files its own PD7A remittances and its own year-end T4 summary, even though they share the underlying 9-digit business identity.
You need an RP account before the first paycheque clears, including the first time you pay yourself a T4 salary out of your own corporation. CRA expects source deductions — CPP, EI, and federal/provincial income tax — to start withholding on the first pay period, so the account has to exist before the first payroll run, not after.
For background on the BN itself and which program accounts trigger when, our guide on whether Canadian small businesses need a Business Number covers the upstream picture; this article picks up at the moment you've already decided to register payroll and the registration form is open in front of you.
The three address fields on the payroll registration form
The single most under-explained part of the CRA payroll registration is that the form asks for three separate addresses, not one. They're displayed as distinct fields on the BRO screen and as separate rows under "Manage addresses" in My Business Account. The CRA can legitimately mail to a different address than the one your books sit at — and many businesses set them up to do exactly that.
| Address field | What it controls | Typical content for a small employer |
|---|---|---|
| Physical location | Where the business actually operates day-to-day | Office, home office, or commercial street suite |
| Mailing address | Where CRA sends paper correspondence — PD7A statements, notices of assessment, audit letters | Same as physical, or a virtual commercial address |
| Books and records address | Where the employment records (payroll registers, T4 working papers, source-deduction journals) are physically kept | Same as physical, or your accountant's office |
The three can legitimately differ. A founder running a remote-first company from a Toronto condo might keep the physical location at home (privacy reasons aside), route the mailing address through a downtown commercial suite that scans CRA mail same-day, and list the accountant's office in Mississauga as the books-and-records location.
The CRA tests each of these the same way: a real Canadian street address inside Canada, capable of accepting registered mail and producing a signature on receipt. PO boxes are rejected in all three fields — they don't satisfy the physical-location test, and they don't satisfy the registered-mail test for the mailing or books-and-records fields either.
Physical location
This is where the business operates. For an incorporated company it's usually the same address as the registered office on the federal or provincial corporate registry. For a sole proprietor with employees, it can be a home address, a leased office, or a virtual commercial suite — there's no requirement that the owner physically work from this location every day, only that it's a real Canadian place tied to the business.
Privacy matters here for sole proprietors specifically: because elements of the BN file propagate to the provincial registry under various business-name registration regimes, the physical-location field can become discoverable. Founders working from home often substitute a commercial street address — the rationale and trade-offs are in our sole proprietor home-address privacy guide.
Mailing address
This is the address that has to receive registered mail and respond on a deadline. CRA correspondence — including payroll-specific letters like PD7A statements and trust-examination notices — carries tight reply windows. A paper notice sitting in an unattended mailroom can quietly turn into a missed deadline, so the mailing-address choice has a direct compliance consequence.
A licensed commercial virtual mailbox satisfies the field. Same-day digital delivery means the deadline clock starts on the day you actually receive the notice, not the day someone happens to check the box. The same address can also serve as the mailing address on the registered office and CRA file for the rest of your CRA program accounts.
Books and records address
Section 230 of the Income Tax Act and the corresponding provision under the Canada Pension Plan and Employment Insurance acts require payroll records to be kept in Canada at a specified address, available for CRA inspection. This is the books-and-records address.
For most small employers, the books physically sit wherever the cloud payroll software's backup hard drive sits — typically the founder's laptop, which lives wherever they live. CRA accepts an address where electronic records are accessible; you don't need a physical filing cabinet at the address. What you do need is the ability to produce the records on request at that address if CRA initiates a trust examination.
Many founders list their accountant's office as the books-and-records address. That's allowed, and it has the practical benefit of putting the CRA's inspection contact at the same address as the people who can answer technical questions about the records.
BRO vs My Business Account — which path opens the RP account
Two online flows open an RP account, and the right one depends on whether you already have a Business Number.
| Path | When to use | What it does |
|---|---|---|
| Business Registration Online (BRO) | You don't have a BN yet (sole proprietor or partnership hiring first employee) | Creates the BN and opens the first program account — including RP — in the same submission |
| My Business Account portal | You already have a BN (incorporated companies, or sole proprietors with existing GST/HST) | Adds the RP suffix to your existing BN without re-creating the business identity |
The BRO walkthrough for a first-time payroll registration:
- Identification of the principal owner — name, Social Insurance Number, date of birth
- Business legal structure — sole proprietorship, partnership, or (rare) corporation if not already incorporated
- Business name and a plain-English activity description
- The three address fields — physical location, mailing address, books-and-records address
- Program accounts to open — tick
RP(payroll); you can tickRT(GST/HST) at the same time if relevant - Payroll-specific questions — expected number of employees, anticipated pay frequency, first pay date
- Fiscal year-end
The CRA returns the BN and the RP0001 reference number immediately on screen. You can begin withholding source deductions the same day.
Adding RP through My Business Account is shorter. Inside the existing BN's profile, the "Add an account" option opens the same payroll-specific questions — number of employees, pay frequency, first pay date — without re-entering the business identification. The three address fields can either inherit from the existing BN file or be set independently for the payroll account.
A note on the legacy phone path: as of November 3, 2025, the CRA no longer accepts new BN registrations by phone. Adding program accounts to an existing BN can still be done by phone (1-800-959-5525), but a brand-new BN now requires either BRO or paper Form RC1.
Paper Form RC1 and the Sudbury Tax Centre
If you're filing on paper instead of online, the destination is the Sudbury Tax Centre at 1050 Notre Dame Avenue, Sudbury ON P3A 5C1, Canada. Form RC1 (with RC1B as the payroll appendix) covers BN creation and the RP account in the same submission. Paper processing typically takes 4 to 6 weeks — significantly slower than BRO's immediate result — so paper is realistically only used by non-residents and a narrow set of edge cases where the online portal can't accept the application.
Sudbury is also one of the destination centres for paper T4 filings if you're submitting on physical paper rather than through Web Forms or the Internet File Transfer (XML) service. Most employers now file T4s electronically, which doesn't involve the Sudbury address at all.
Changing an address on the payroll account — three valid methods
Once the RP account exists, addresses change over time — new office, change of accountant, switch to a virtual mailbox. The CRA accepts three change paths:
| Method | Effective date control | Speed |
|---|---|---|
| My Business Account portal ("Profile" → "Manage addresses") | Future-dated effective date supported | Immediate online; updated on the file within 1 business day |
| Phone (1-800-959-5525) | Effective immediately on the call | Same-day, but no paper trail |
| Signed paper form with effective date | You set the effective date on the form | 2 to 4 weeks |
For most small employers, the My Business Account method is the recommended path — it's the fastest, supports future-dated changes (useful when you're moving offices on a known date), and leaves an audit trail inside the portal showing when the change was submitted and accepted.
If you change all three address fields (physical, mailing, books-and-records) at once, the portal lets you update them in a single transaction. The most common pattern is changing just the mailing address — the physical and books-and-records often stay put while CRA correspondence gets routed to a new commercial address for same-day mail scanning.
Non-resident employers — the separate registration path
Non-resident businesses hiring Canadian employees follow a different path because BRO doesn't accept non-resident applicants directly. The process:
- Form RC1 plus the RC1B payroll appendix by mail to the Sudbury Tax Centre, or by fax
- A Canadian mailing address on the form — non-residents typically use a commercial agent's address or a virtual commercial address in the province where employees will work
- A determination of whether the employer is required to withhold Canadian source deductions, which depends on whether the work is performed in Canada and the employee's residency
A non-resident with no permanent establishment in Canada can still open an RP account — the address fields just have to be Canadian, even if the corporation itself is foreign. The mailing address is the most operationally important field for a non-resident employer because every PD7A statement, every payroll review letter, and any trust-examination notice will land there.
Our guide on opening a Canadian business bank account as a non-resident covers the parallel banking step that usually runs alongside non-resident payroll setup.
T4 slip address vs the address on the RP file — a small but important distinction
A point that trips up first-time employers: the address on the T4 slip issued to an employee is not the same record as the address on the RP account file.
- The T4 slip address is what the employee sees on the slip you (or your payroll software) generates each February. It's the employer's legal address, printed on the slip. Employees use it on their personal T1 returns and for verification when applying for credit.
- The
RPaccount address is what the CRA mails you at — PD7A remittance statements, source-deduction reviews, and trust examination notices.
The two records can match, and for most small employers they do. But they're stored separately in CRA's systems. Changing the address inside My Business Account updates the RP file; updating your payroll software's employer profile updates what prints on the T4 slip. If you move offices, you generally want to update both, but they're two separate actions in two separate places.
Does the geography of your virtual address — Toronto, Vancouver, elsewhere — affect the payroll account?
Short answer: no, not for the federal RP account.
Payroll source deductions are a federal CRA program (with Quebec running its own parallel system through Revenu Québec). The CRA processes the RP account at the federal level regardless of whether your physical-location field says Toronto, Vancouver, Calgary, or Halifax. The province on the address affects which tax centre routes paper correspondence — Sudbury covers Ontario, Winnipeg covers most of the Prairies, Jonquière covers Quebec — but the underlying account treatment is identical.
What the province does affect, indirectly, is provincial labour-standards registration (separate from CRA) and employer health-tax obligations in provinces that levy one (Ontario's EHT, BC's Employer Health Tax). Those are provincial registrations sitting alongside the federal RP account, with their own address fields and their own deadlines. The federal CRA payroll account doesn't change behaviour based on which Canadian city sits on the mailing address.
For remote founders weighing whether a Toronto address or a Vancouver address fits their situation better, the choice is driven by where employees actually work, where the bank wants the address, and where the registered office sits — not by what CRA does with the RP file. Our broader walkthrough of running a Canadian business with a remote-friendly address covers the cross-cutting trade-offs.
How a virtual mailbox actually helps with the RP mailing address
Same-day mail scanning is the part that matters for payroll specifically. PD7A statements carry remittance amounts and effective dates; trust-examination notices carry strict reply windows; notices of assessment for missed source deductions trigger interest from the date of the underlying default, not from the date the notice gets noticed.
A licensed Canadian commercial virtual mailbox — like Auteur's Toronto and Vancouver suites — satisfies the physical-location and mailing-address fields in the same way any commercial street address does, with two operational additions specific to CRA mail:
- Same-day digital delivery. The Sudbury Tax Centre's letter arrives, gets opened, gets scanned, and lands in your inbox the same business day. Your reply window starts on day zero, not on day seven when you happen to drop by.
- One address across the BN file, the RP account, the GST/HST account, and the corporate registry. Using one Canadian street address across all four records removes the address-mismatch flags that slow down My Business Account access, hold up bank reconciliation, and occasionally cause CRA correspondence to bounce between addresses. Auteur is Canadian-owned and operates exclusively from Canadian addresses — important when the CRA is checking that records are kept at the listed location.
The same address you use for the registered office and CRA mailing requirements can sit on the RP file, eliminating the address-reconciliation work that comes with running three or four parallel records.
FAQ
What is the CRA mailing address?
For paper payroll correspondence (Form RC1, RC1B, and other paper filings related to a new or existing RP account), the destination is the Sudbury Tax Centre, 1050 Notre Dame Avenue, Sudbury ON P3A 5C1, Canada. For T1 personal returns and T2 corporate returns, CRA routes to different tax centres depending on the filer's province — Winnipeg and Jonquière being the two other major centres. The CRA's mailing-address finder on canada.ca is the authoritative source if your routing is unusual, because tax centres occasionally reallocate provinces. For most online filings — including My Business Account, payroll remittances, and electronic T4s — you don't mail anything at all; the system handles everything digitally without a physical address.
How to register a business payroll account with CRA?
The fastest path is online. If you don't have a Business Number yet, use Business Registration Online (BRO) to create the BN and open the RP payroll account in the same submission — roughly 15 minutes, and the account number is returned on screen. If you already have a BN (which incorporated companies always do), sign into CRA My Business Account and add the RP account through the "Add an account" or "Manage addresses" flow under your existing BN profile. The form asks for the three address fields (physical, mailing, books-and-records), the expected number of employees, the planned pay frequency, and the first pay date. Source deductions — CPP, EI, federal and provincial income tax — start withholding on the first pay period, so the account must exist before the first paycheque clears. Paper Form RC1 plus RC1B is available if you can't use the online portal, mailed to the Sudbury Tax Centre; processing takes 4 to 6 weeks.
Is the CRA payroll number the same as the business number?
No. The Business Number (BN) is the 9-digit identifier the CRA assigns to your business — for example, 12345 6789. The payroll account number is the BN plus the RP program suffix plus a 4-digit reference: 12345 6789 RP0001. The 9-digit BN stays the same across every program account; what changes is the suffix and reference. A business with GST/HST, payroll, and corporate income tax would hold three accounts off the same BN: 12345 6789 RT0001, 12345 6789 RP0001, and 12345 6789 RC0001. When CRA correspondence references "your payroll account," it means the full RP identifier; when it references "your Business Number," it means just the 9 digits.
Bottom line
The CRA payroll account is one of the more straightforward registrations the CRA runs — once you understand that the form is asking for three addresses, not one, and that all three need to be real Canadian street addresses inside Canada.
For most small employers, the practical choice is to point all three address fields at the same commercial mailing address that already sits on the BN file, the GST/HST file, and the corporate registry. That keeps CRA's records aligned, prevents the address-mismatch flags that slow down My Business Account access, and gives you a single inbox for every payroll-related letter — PD7A statements, source-deduction reviews, year-end T4 summary notices, trust examinations.
The skyscraper version of this article is the part most online guides skip: the physical location, mailing address, and books-and-records address are separate fields with separate compliance meanings, even though they're allowed to point at the same place. CRA can mail to a different address than the one your books physically sit at, and many businesses set them up that way intentionally — accountant's office for books-and-records, virtual commercial suite for the mailing address, and a home or office for the physical location.
Reserve a Toronto or Vancouver address before your first paycheque clears and the BN file, the RP account, the GST/HST account, and the corporate registry can all reference the same Canadian commercial address — with the same-day mail scanning that turns a 30-day CRA response window into a 30-day window instead of a 16-day one.