Get ready to file https://www.canada.ca/en/services/taxes/income-tax/personal-income-tax/get-ready-taxes.html

Sign in to your CRA account (My Account) https://www.canada.ca/en/revenue-agency/services/e-services/cra-login-services.html

Register for a CRA account https://www.canada.ca/en/revenue-agency/services/e-services/cra-login-services/register-cra-sign-in-services.html

TFSA contribution room (how to calculate/check) https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/tax-free-savings-account/contributing/calculate-room.html

All deductions, credits & expenses (searchable list) | https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/deductions-credits-expenses.html

Guide T4002 – Self-employed business & professional income | https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4002.html

Report business income and expenses (hub) https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/sole-proprietorships-partnerships/report-business-income-expenses.html

Business expenses (overview) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/sole-proprietorships-partnerships/business-expenses.html

Business-use-of-home expenses (workspace in home) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/sole-proprietorships-partnerships/report-business-income-expenses/completing-form-t2125/business-use-home-expenses.html

Sole proprietorship (CRA overview) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/small-businesses-self-employed-income/setting-your-business/sole-proprietorship.html

When to register for and start charging GST/HST | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/when-register-charge.html

Register for a GST/HST account | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/gst-hst-account/register-account.html

GST/HST for businesses (main hub) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses.html

When to register and start charging GST/HST | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/when-register-charge.html

Register for a GST/HST account | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/gst-hst-account/register-account.html

Register voluntarily (small suppliers) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/account-register-voluntarily.html

Reporting requirements and deadlines | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/file-gst-hst-return/reporting-requirements-deadlines.html

Remit (pay) the GST/HST you collected | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/remit-pay-gst-hst-collected.html

General Information for GST/HST Registrants (RC4022) | https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/rc4022/general-information-gst-hst-registrants.html

Corporation income tax return (T2) – main hub | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/corporation-income-tax-return.html

T2 Corporation Income Tax Return (form) | https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/t2.html

T4012 – T2 Corporation Income Tax Guide (2024) | https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4012.html

Completing your corporation income tax (T2) return | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/corporation-income-tax-return/completing-your-corporation-income-tax-t2-return.html

Corporation Internet Filing (file your T2 online) | https://www.canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/corporation-internet-filing.html

About Corporation Internet Filing (web access code / EFILE details) | https://www.canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/corporation-internet-filing/about-corporation-internet-filing-service.html

Where to send your corporation income tax (T2) return | https://www.canada.ca/en/revenue-agency/corporate/contact-information/where-send-your-corporation-income-tax-t2-return.html

After you file your corporation income tax return | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/after-you-file-your-corporation-income-tax-return.html

Requesting a reassessment of your T2 return | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/after-you-file-your-corporation-income-tax-return/reassessments-adjustments-your-t2-return/requesting-a-reassessment-your-t2-return.html

Personal tax due dates & payment dates (Individuals) | https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/important-dates-individuals.html

Get ready to file (includes the earliest online filing date) | https://www.canada.ca/en/services/taxes/income-tax/personal-income-tax/get-ready-taxes.html

RRSP / FHSA / HBP / LLP important dates (RRSP deadline page) | https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/rrsps-related-plans/important-dates-rrsp-rrif-rdsp.html

Income tax instalment due dates (Individuals) | https://www.canada.ca/en/revenue-agency/services/payments/payments-cra/individual-payments/income-tax-instalments/due-dates.html

GST/HST reporting requirements & deadlines | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/file-gst-hst-return/reporting-requirements-deadlines.html

Payroll remittance due dates (source deductions) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/remitting-source-deductions/how-when-remit-due-dates.html

Employers’ Guide T4001 (remitter schedules + due dates) | https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4001/employers-guide-payroll-deductions-remittances.html

Corporation T2 filing deadline (6 months after year-end) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/corporation-income-tax-return/when-file-your-corporation-income-tax-return.html

Corporate balance-due day (2 or 3 months after year-end, depending) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/corporations/corporation-payments/paying-your-balance-corporation-tax/balance-day.html

Prescribed interest rates (quarterly) | https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates.html

Current quarter interest rates details | https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q1.html

Tax rates & income brackets (current + previous years) | https://www.canada.ca/en/revenue-agency/services/tax/individuals/frequently-asked-questions-individuals/canadian-income-tax-rates-individuals-current-previous-years.html

CPP contribution rates & maximums (CRA payroll) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/canada-pension-plan-cpp/cpp-contribution-rates-maximums-exemptions.html

EI premium rates & maximums (CRA payroll) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/employment-insurance-ei/ei-premium-rates-maximums.html

Payroll (Employers) – main hub | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll.html

Get a payroll program account (RP) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/open-manage-payroll-program-account.html

Business number (BN) and program accounts – register | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/business-registration/business-number-program-account/how-register.html

Payroll deductions online calculator (PDOC) | https://www.canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/payroll-deductions-online-calculator.html

CPP contributions (employer/employee) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/cpp.html

EI premiums (employer/employee) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/ei.html

How and when to remit (payroll deductions) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/remitting-source-deductions.html

Remittance due dates | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/remitting-source-deductions/due-dates.html

Make a payment to the CRA (business) | https://www.canada.ca/en/revenue-agency/services/payments/payments-cra/business-payments/make-payment.html

T4 slips and T4 Summary (information return) | https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/rc4120.html

File T4 slips online (Web Forms) | https://www.canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/internet-file-transfer.html

T4 slip (form) | https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/t4.html

T4 Summary (form) | https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/t4summary.html

Records you need to keep (payroll records) | https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/keeping-records.html

About My Business Account (view balances, remittances, mail) | https://www.canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/business-account/about-business-account.html