You're an incorporated physician. You had a strong year — or a few of them — and your professional corporation is sitting on $200,000 in a business chequing account earning little to nothing, depending on where you bank. That's a meaningful pile of money doing almost no work.
There are two main places that idle cash could go instead: a high-interest business savings account or a corporate investment account. They do different jobs, carry different risks, and suit different timelines. The rest of this article walks through both so you can see which one fits your situation. This is general information, not advice — your accountant or a licensed advisor should weigh in before you act.
What idle corporate cash can cost you
Here's the thing about $200,000 sitting in a chequing account earning close to nothing: in real terms, it can shrink. With inflation running between 2% and 3% a year, that $200,000 could lose an estimated $4,000 to $6,000 in purchasing power annually. That's money your corporation earned, paid tax on, and held onto.
The good news is there are alternatives. Both a high-interest business savings account and a corporate investment account are built to put retained earnings to work — in different ways, with different trade-offs. Here's how each one works.
Option 1: a high-interest business savings account
This is a deposit product, and its job is to protect your money while earning some return.
Access: Your money is generally available when you need it, with no lock-in.
Principal protection: Your deposit doesn't move with the markets.
Deposit insurance: At Canada Deposit Insurance Corporation (CDIC) member institutions, eligible deposits are insured up to $100,000 per depositor, per deposit category, per member institution. Corporations can increase total coverage by spreading money across multiple CDIC member institutions, or across different deposit categories. (CDIC insurance covers deposit products like savings accounts and guaranteed investment certificates — it doesn't cover investments like ETFs, bonds, or stocks.)
On $200,000, a competitive interest rate earns meaningfully more than a chequing account paying close to nothing. The interest is taxed as passive investment income inside your Canadian-Controlled Private Corporation (CCPC) — more on that nuance below — but even after tax, you're well ahead of leaving the cash idle.
One note on traditional bank setups: many banks offer a separate business savings account that pays interest but keeps your operating cash and your interest-earning cash in two places. That can mean shuffling money back and forth to cover payroll, rent, or equipment, and some accounts charge per-transaction fees that chip away at your balance. When you compare options, look closely at fees and access (see "How to choose" below).
To solve this operational friction, some platforms have introduced hybrid options. For instance, a business chequing account that pays the exact same tiered interest rates as their corporate high-interest savings account. This allows your operating cash to earn a competitive return directly, eliminating the need to constantly move money back and forth to cover daily expenses.
Option 2: a corporate investment account
This is a non-registered investment account held inside your corporation, and its job is growth.
What it holds: Exchange-traded funds (ETFs), bonds, stocks, and similar non-registered investments.
Return and risk: The potential return is higher than a savings account, but your principal isn't guaranteed. Markets can and do go down.
No deposit insurance: Investments in this account aren't covered by CDIC insurance.
Here's something a lot of incorporated professionals don't realize until their accountant points it out: corporations can't use a TFSA or an RRSP. Those are for individuals only. A corporate investment account is the main way to grow surplus capital inside your CCPC. If you have a longer timeline — say, three years or more — and cash beyond what you need to run the business, this is the option to talk through with your advisor.
Savings account vs. investment account: how they compare
Both options take idle cash and put it to work, but they sit at different points on the risk-return spectrum.
High-interest business savings account | Corporate investment account | |
|---|---|---|
| Main goal | Protect your money, plus earn a return | Growth |
| Holds | Cash deposit | ETFs, bonds, stocks |
| Principal | Protected | Not guaranteed |
| CDIC insurance | Yes (eligible deposits, per category and institution limits) | No |
| Access | High | Varies; generally suited to longer timelines |
| Best for | Near-term needs, reserves, capital waiting to be deployed | Surplus capital, longer timelines |
The key distinction for incorporated professionals: because your corporation can't open a TFSA or RRSP, a corporate investment account is how you pursue growth beyond savings rates inside your CCPC.
When a high-interest business savings account makes sense
Short-term needs (under 12 months): money you'll need for payroll, equipment, or tax instalments
Emergency reserve: three to six months of operating costs, ready when you need them
Capital waiting to be deployed: money earmarked for an investment, acquisition, or distribution that hasn't happened yet
When a corporate investment account makes sense
Longer timelines (one to three-plus years): surplus capital your corporation won't need any time soon
Growth beyond savings rates: once your operating reserve is built and you want to put extra retained earnings to work
Diversification: a mix of ETFs and bonds can offer returns a savings account can't match over time, in exchange for accepting market risk
One important nuance: passive investment income inside a CCPC is generally taxed at a higher rate than active business income, and above certain thresholds it can reduce your access to the small business deduction. Your accountant should be part of this conversation.
How to choose the right business account
Before you move any corporate cash, think through four things — and where it helps, run them by your accountant or advisor.
Access needs: How quickly do you need to get to your money? Some accounts offer immediate access; others involve notice periods or transfer delays.
Risk tolerance: Are you comfortable with market ups and downs, or do you want your principal protected? This is what separates a savings account from an investment account.
Timeline: Money you'll need in six months should be treated differently than surplus you won't touch for three years.
Fees: Monthly account fees, transaction fees, and minimum balance requirements can eat into your returns. Look for accounts with no monthly fees and no minimum balance.
For a lot of incorporated physicians, the answer isn't either-or. It can make sense to hold enough in a high-interest business savings account to cover near-term obligations, and direct longer-term surplus to a corporate investment account. The right split depends on your numbers — a conversation worth having with your accountant.
How to open a corporate account in Canada (savings or investment)
The process for both account types is more straightforward than most people expect.
Gather your corporate documents. You'll typically need your articles of incorporation, a corporate resolution authorizing the account (your accountant can help with this), and government-issued ID for all directors. If your corporation has a minute book, keep it handy — some providers ask for specific pages.
Choose your provider. Compare fees, rates, investment options, and how easy the account is to use. Digital-first providers often offer faster onboarding and fully online setup, while traditional banks may require a branch visit and a longer timeline.
Complete the application. Online or in-branch, you'll answer know-your-client (KYC) questions about your corporation's source of funds, objectives, and risk tolerance. This is standard regulatory procedure.
Fund your account. Move money from your corporate chequing account by electronic funds transfer (EFT) or wire. Funds typically settle in one to three business days, depending on the method and institution.
Set it up for your chosen product.
For a high-interest business savings account: interest accrues automatically — there's nothing to manage.
For a corporate investment account: you'll choose between self-directed (you pick the investments), managed investing (a professional or algorithm builds and rebalances for you), or a combination.
Put your corporate cash to work
If you're an incorporated professional with $200,000 — or $50,000, or $500,000 — sitting in a corporate chequing account earning next to nothing, the two destinations above are worth understanding. A high-interest business savings account protects your money and earns a return; a corporate investment account pursues growth, with added risk. Which one (or what mix) fits depends on your timeline, your reserve needs, and your risk tolerance — and it's a decision your accountant or advisor should help you make.
