Is there a penalty for registering for a business number late?
Form RC1 registers a business number and the CRA programme accounts a business needs, so being late is rarely charged on the registration itself. It is charged on the returns that should have been filed once each account existed. For the 2025 tax year the CRA late-filing penalty on a return filed late with a balance owing is 5 per cent of that balance, plus 1 per cent for each full month the return is late, to a maximum of twelve months. Register first, then work out which returns are outstanding and what each one owes.
I registered late and owe returns for past years, what happens now?
The years get dealt with one account at a time. Each programme account carries its own returns and its own exposure, so a payroll account and a corporation income tax account opened on the same registration do not produce one problem but two. Where a return is filed late and a balance is owing, the late-filing penalty for the 2025 tax year is 5 per cent of that balance plus 1 per cent for each full month, to a maximum of twelve months. The penalty itself does not compound. Interest does, daily, on what is unpaid.
Does the penalty get worse if I have filed late before?
It can, but not for repetition alone. The higher rate applies where the CRA issued a demand to file and charged a late-filing penalty in any of the three preceding tax years. Where both are true, the figures for the 2025 tax year are 10 per cent of the balance owing plus 2 per cent for each full month the return is late, to a maximum of twenty months. If no demand was issued, the ordinary rate applies however many times you have been late. Read the correspondence before assuming the worse figure applies to your account.
Do late filing penalties keep compounding until I pay?
The penalty does not compound. It is worked out once on the balance owing for that return, at the flat percentage plus the monthly percentage for the months the return is late, and it stops at the month cap, which for the 2025 tax year ordinary rate is twelve months. Interest is the part that compounds, and it compounds daily on the unpaid amount. That is why paying down a balance is worth doing while the return is still being prepared, rather than waiting until everything is ready to file.
Is there a late filing penalty if I owe no tax?
The late-filing penalty is a percentage of the balance owing, so with no balance there is nothing for it to apply to. That does not make a late filing free of consequence. Accounts opened on a registration can carry their own reporting requirements that do not depend on tax being due, and an unfiled year keeps a file open with the CRA that somebody will eventually ask about. The point worth taking is that a nil position removes the arithmetic, not the obligation to file the return.
Should I open every programme account at registration just to be safe?
No, and opening them to be safe is how obligations get created. Opening a payroll account before deciding whether there is a permanent establishment can create obligations a review would have avoided, and once the account exists the returns and remittances are expected against it whether or not anyone is employed in Canada. That turns one registration question into a stream of late filings. Decide the permanent establishment question on the facts, then register only the accounts those facts actually require.
What is double taxation?
Double taxation means the same income being taxed by two authorities. It comes in two forms: juridical, where two countries each tax one person on one amount, and economic, where two different people are taxed on the same underlying profit — a company on its earnings and a shareholder on the dividend paid out of them. Relief comes from a treaty, a foreign tax credit, or an exemption, and which one applies depends on the income type. How to avoid double taxation sets out the routes.
How does cross-border tax planning work?
It starts with facts rather than structures: which countries have a claim on you, what each one taxes, and where the two overlap. From there the decisions are about order and timing — which country taxes first, where relief is claimed, and whether a filing or a certificate has to be in place before money moves rather than after. Most of the value is in the sequencing, because relief claimed late is usually relief recovered slowly. See international tax planning.
