I filed my personal taxes but not my small business can I wait until next year

[TurboTax-Duncan]

Hi, thank you for using Intuit TurboTax Live Community

If you are a sole proprietor filing a T2125 this would be part of your T1 personal tax return. If the T1 was filed without the T2125 you should likely refile to include the T2125.

If Filing a T2 for a corporation, a T2 return must be filed every year, by the CRA deadline for filing.

Hope this helps