Starting a Business in Canada: Complete Tax Setup Guide

Starting a business in Canada is an exciting milestone—but between registering your business, setting up your CRA accounts, and figuring out HST, payroll, and taxes, the administrative side can feel overwhelming fast.

The good news? If you set things up correctly from day one, you’ll avoid costly mistakes, CRA penalties, and stressful catch-up work down the road. At BooBoo Accounting Services, we help new Richmond Hill business owners get their tax foundation right from the very start.

This guide walks you through every step of the tax setup process—in plain language, in the right order.

💡 Quick Tip: Don’t wait until tax season to get organized. The decisions you make in your first 90 days in business affect how much tax you pay for years to come.

📋 Step-by-Step Tax Setup Checklist at a Glance

Step	Task	Timeline
1	Choose your business structure	Before you start
2	Register your business name	Day 1
3	Get your CRA Business Number (BN)	Day 1–7
4	Register for HST/GST (if required)	Day 1–30
5	Set up a business bank account	Day 1–7
6	Set up bookkeeping & accounting software	Week 1
7	Register for payroll (if hiring employees)	Before first paycheque
8	Understand your tax obligations	Ongoing
9	Set aside money for taxes	Every month
10	Work with an accountant	From day one

🏢 Step 1: Choose Your Business Structure

Your business structure determines how you’re taxed, how much liability you carry, and what paperwork you file. In Canada, there are three main options for small business owners:

Structure	Best For	Tax Rate	Liability
Sole Proprietorship	Freelancers, side hustles, early-stage businesses	Personal rate (up to 53.53%)	Unlimited personal liability
Partnership	Two or more people starting a business together	Each partner taxed personally	Shared personal liability
Corporation	Growing businesses, $100K+ income, asset protection	12.2% (Ontario CCPC, first $500K)	Limited to business assets

✅ Recommendation for Most New Businesses: Start as a sole proprietorship to keep things simple and low-cost. Once your net income consistently exceeds $80,000–$100,000, talk to an accountant about incorporating. Don’t over-complicate things before you have revenue.

📝 Step 2: Register Your Business Name

If you’re operating under any name other than your own legal name, you must register it.

Sole Proprietorship / Partnership — Ontario Business Name Registration

Register through ServiceOntario at ontario.ca/page/register-business-name
Cost: $60 (online registration)
Renewal required every 5 years
Does NOT provide name protection across Canada

Corporation — Articles of Incorporation

Register provincially through ServiceOntario (Ontario) or federally through Corporations Canada
Cost: ~$360 (Ontario) or ~$200 (Federal)
Creates a separate legal entity with its own rights and obligations

💡 Pro Tip: Do a NUANS name search before registering to make sure your chosen business name isn’t already taken. Nothing is worse than printing 500 business cards and then discovering you can’t use the name.

🔢 Step 3: Get Your CRA Business Number (BN)

Your Business Number (BN) is a unique 9-digit number the CRA uses to identify your business. Think of it as your business’s Social Insurance Number.

How to Register:

Online at canada.ca/en/revenue-agency/services/tax/businesses/topics/registering-your-business
By phone: 1-800-959-5525
Through your accountant (fastest and most accurate)

What You’ll Need:

Your SIN (for sole proprietors)
Business name and address
Business start date
Fiscal year-end (for corporations)
Estimated annual revenue

Your BN is the root number for all your CRA program accounts. Once you have it, you can add:

CRA Account	Account Code	When You Need It
Corporate Income Tax	RC	If incorporated
GST/HST	RT	When revenue hits $30,000
Payroll Deductions	RP	Before your first employee paycheque
Import/Export	RM	If importing/exporting goods

💳 Step 4: Register for HST/GST

HST (Harmonized Sales Tax) in Ontario is 13%. Whether and when you need to register depends on your revenue.

Do You Need to Register?

⚠️ Mandatory Registration: You MUST register for HST/GST once your business revenue exceeds $30,000 in any single calendar quarter or in four consecutive quarters. You must register within 29 days of crossing this threshold.

✅ Voluntary Registration: Even if you earn less than $30,000, you can register voluntarily. This lets you claim Input Tax Credits (ITCs)—meaning you get back the HST you pay on business expenses. Many new businesses benefit from this immediately.

HST Filing Frequencies:

Annual Revenue	Filing Frequency	Due Date
Under $1.5 million	Annual	3 months after fiscal year-end
$1.5M – $6 million	Quarterly	1 month after quarter-end
Over $6 million	Monthly	1 month after month-end

💡 Smart Move: Most new small businesses choose quarterly filing. It keeps you on top of your HST obligations without the burden of monthly returns. Your accountant can help you select the best frequency for your cash flow.

What Is an Input Tax Credit (ITC)?

When your business pays HST on purchases (office supplies, equipment, advertising, etc.), you can claim those amounts back from the CRA as ITCs. This is one of the biggest reasons to register for HST early—even before you’re required to.

Real Example:

You spend $10,000 on equipment + $1,300 HST. You collect $5,000 in HST from customers. You remit $5,000 − $1,300 = $3,700 to CRA instead of the full $5,000. You saved $1,300 in cash.

🏦 Step 5: Open a Dedicated Business Bank Account

This is non-negotiable. The moment you start your business, open a separate business bank account and never mix business and personal finances.

Why This Matters for Taxes:

Makes bookkeeping dramatically easier and faster
Protects your personal assets (especially if incorporated)
Makes CRA audits far less stressful
Ensures you don’t accidentally miss deductions
Looks professional to clients and lenders

⚠️ CRA Red Flag: Mixing personal and business accounts is one of the most common triggers for a CRA audit. Keep them completely separate from day one—no exceptions.

Also Consider:

A dedicated business credit card for all business purchases
A separate savings account to set aside your tax reserves each month

📊 Step 6: Set Up Bookkeeping & Accounting Software

Good bookkeeping is the backbone of your tax compliance. Start tracking from day one—catching up on a year of records is painful and expensive.

Popular Options for Canadian Small Businesses:

Software	Best For	Starting Price
QuickBooks Online	Most small businesses	~$35/month
Xero	Growing businesses, multiple users	~$20/month
FreshBooks	Freelancers, service businesses	~$19/month
Wave	Brand new / very small businesses	Free

What Your Bookkeeping System Should Track:

All business income (every invoice and payment received)
All business expenses (with receipts)
HST collected and HST paid on purchases
Payroll (if you have employees)
Owner withdrawals or salary payments
Bank and credit card reconciliations

💡 Pro Tip: Photograph every receipt immediately and upload it to your accounting software. Don’t leave receipts in your wallet or glove box—they fade and get lost. Apps like Dext or HubDoc make this effortless.

👥 Step 7: Set Up Payroll (If You’re Hiring)

The moment you hire your first employee, you have legal obligations to the CRA—and they’re strict.

What You Must Do Before Paying Your First Employee:

Register for a Payroll (RP) account with the CRA
Have employees complete a TD1 form (federal and provincial)
Calculate and deduct CPP, EI, and income tax from each paycheque
Remit deductions to the CRA on schedule (monthly or quarterly for most new businesses)
Issue T4 slips to employees by February 28 each year

2025 Payroll Deduction Rates:

Deduction	Employee Rate	Employer Rate
CPP (Canada Pension Plan)	5.95%	5.95% (you match it)
EI (Employment Insurance)	1.66%	2.324% (1.4x employee rate)
Income Tax	Based on TD1 claim	N/A (employee only)

⚠️ WARNING: Payroll remittance is one of the most serious obligations you have as an employer. The CRA can personally assess business owners—even corporate directors—for unpaid remittances. Use payroll software or hire a professional from the start.

Payroll Software Options:

Wagepoint – Built for Canadian small businesses
ADP – Full-service, scalable
QuickBooks Payroll – Integrates with your bookkeeping
Rise – HR + payroll combined

📅 Step 8: Know Your Tax Obligations & Key Deadlines

As a new business owner, you now have multiple tax filing obligations depending on your structure. Here’s a clear breakdown:

Sole Proprietor Tax Obligations:

Obligation	Deadline
Personal tax return (T1 + T2125)	June 15 (file) / April 30 (pay)
HST/GST return (if registered)	Quarterly or annually
Tax installments (if owing $3,000+)	March, June, September, December 15
T4 slips (if you have employees)	February 28

Corporation Tax Obligations:

Obligation	Deadline
T2 Corporate tax return	6 months after fiscal year-end
Corporate tax payment (CCPC)	3 months after fiscal year-end
T4/T5 slips to employees/shareholders	February 28
HST/GST return	Monthly, quarterly, or annually
Personal T1 return (for yourself)	April 30

✅ Pro Move: Set calendar reminders 2 weeks before every deadline. One missed filing can trigger penalties that cost more than an entire year of accounting fees.

💰 Step 9: Set Aside Money for Taxes Every Month

The most common financial mistake new business owners make is spending all their revenue—then being blindsided by a large tax bill at year-end.

How Much Should You Set Aside?

Business Type	Suggested Monthly Reserve
Sole proprietor (income under $50K)	20–25% of net profit
Sole proprietor (income $50K–$100K)	30–35% of net profit
Sole proprietor (income $100K+)	40–45% of net profit
Corporation (on retained earnings)	15% of corporate profit

💡 Best Practice: Open a separate savings account just for taxes. Every time you get paid, transfer your tax reserve immediately. Treat it as an expense—not money you have available to spend.

Don’t Forget These Often-Missed Tax Costs:

CPP contributions — sole proprietors pay both the employee AND employer share (11.9% total)
HST remittances — HST you collected is NOT your money; it belongs to the CRA
Tax installments — once you owe more than $3,000 in taxes, the CRA expects quarterly prepayments the following year

📁 Step 10: Keep Records the CRA Requires

The CRA requires you to keep business records for 6 years from the end of the last tax year they relate to. If you’re audited, you’ll need to produce them.

What to Keep:

All sales invoices and receipts
Purchase receipts for all business expenses
Bank and credit card statements
Contracts and agreements
Mileage logs (if claiming vehicle expenses)
Payroll records and employee TD1 forms
HST returns and workpapers
Previous tax returns and Notices of Assessment

✅ Go Paperless from Day One: Scan or photograph every receipt immediately. Use Google Drive, Dropbox, or apps like Dext to store them digitally. The CRA accepts digital records—and you’ll never lose a receipt again.

🚫 The 8 Biggest Tax Mistakes New Business Owners Make

Not registering for HST on time — The CRA can back-assess you for HST you should have charged and collected, even if you never collected it from customers.
Mixing personal and business finances — Makes everything harder and is an audit red flag.
Not keeping receipts — No receipt = no deduction. The CRA won’t take your word for it.
Spending the HST you collected — That money belongs to the CRA, not you.
Ignoring installment payments — Once you owe $3,000 in taxes, the CRA expects you to prepay quarterly. Ignoring this triggers interest charges.
Missing payroll remittance deadlines — Penalties are steep and directors can be held personally liable.
Claiming 100% personal vehicle as business — The CRA almost never accepts this. Keep a mileage log.
Not working with an accountant from the start — The money you save upfront is often dwarfed by what a good accountant saves you in taxes and penalties over the long run.

🎯 Key Takeaways

Choose your business structure wisely — Most new businesses do best starting as sole proprietors.
Get your Business Number immediately — You need it for everything CRA-related.
Register for HST before you cross $30,000 — or consider registering voluntarily to claim ITCs.
Separate your finances from day one — Personal and business must never mix.
Set up bookkeeping software immediately — Don’t wait until year-end to start tracking.
Set aside tax reserves every month — A large surprise tax bill is entirely avoidable.
Keep every receipt for 6 years — Go digital so you never lose them.
Get professional help early — The right accountant pays for themselves many times over.

💼 How BooBoo Accounting Helps New Business Owners

At BooBoo Accounting Services, we specialize in helping new Richmond Hill business owners set up their tax foundation correctly from day one. We take the confusion and stress out of the process so you can focus on building your business.

✅ Our New Business Setup Services Include:

✅ CRA Registration — Business Number, HST/GST, payroll accounts
✅ Incorporation Services — When you’re ready to take the next step
✅ Bookkeeping Setup — Get organized and stay that way
✅ HST/GST Filing — We handle returns and maximize your ITCs
✅ Payroll Processing — Accurate, on-time, stress-free
✅ Personal & Corporate Tax Returns — Filed correctly and on time
✅ Year-Round Tax Planning — So you’re never caught off guard

📞 Ready to start your business the right way? Call us: (905) 508-4711

10909 Yonge ST Unit 211, Richmond Hill, Ontario | [email protected]

📌 Proudly Serving Richmond Hill, Markham, Vaughan, Newmarket, Aurora, and the Greater Toronto Area

📚 Related Resources from BooBoo Accounting

Disclaimer: This guide provides general information for individuals starting a business in Canada. Tax rules, registration requirements, and rates are subject to change. Individual circumstances vary. Always consult with BooBoo Accounting or a qualified tax professional for advice specific to your situation. Information current as of February 2026.