Most of the moves that cut your 2026 tax bill expire at midnight on December 31. Equipment has to be in use, donations made, dividends paid, and owner pay sorted before the year closes. The RRSP is the one big lever that stays open until March 1, 2027. A year-end plan made in November beats a scramble in April every time.
If you run your practice as a sole proprietor, your tax year is the calendar year, full stop. If you’re incorporated, the corporation has its own fiscal year-end that may or may not be December 31, while your personal return still runs January to December. Year-end planning means watching both clocks, and most clinic owners only ever watch one.
Equipment: bought isn’t enough, it has to be in use
You can only start claiming capital cost allowance on a new treatment table, shockwave unit, or front-desk computer once it’s available for use. Delivered, set up, ready to treat a patient. Order it in December and take delivery in January, and the write-off belongs to next year, not this one.
The timing matters more right now than it has in years. Ottawa reinstated the accelerated investment incentive in its latest budget, so qualifying equipment that’s in use before year-end earns a much larger first-year claim than the old rules allowed. For a clinic planning a big purchase anyway, moving it from January to December can pull a meaningful deduction into 2026.
One caution, and it’s the trap we see most at year-end: a deduction is a discount, not a refund. Spending money you weren’t going to spend anyway just to shrink the bill leaves you poorer, every time. Buy the laser because the clinic needs the laser. The tax timing is the bonus, never the reason.
Bonus, dividend, or wait: timing your own pay
If your corporation accrues you a bonus at its year-end, the company deducts it in that year as long as the bonus is actually paid within 180 days after year-end. Miss that window and the deduction slides to the year you finally pay it. The money isn’t lost, but your carefully planned numbers stop matching reality.
Dividends work on your personal calendar. A dividend paid in December lands on your 2026 return; the same dividend paid in January isn’t taxed until you file for 2027. One month’s difference in cash flow, a full year’s difference in when the tax comes due.
That’s a deferral, not a saving.
Which mix is right depends on your profit, your RRSP goals, and what you need to live on. We’ve written a full comparison in salary vs dividends for health practitioners, and the honest answer is that the split should be recalculated every December, not copied from last year.
The dates that don’t move
December 15 is the final 2026 personal instalment date. If your net tax owing is over $3,000 this year and in one of the two prior years, CRA expects that payment, and interest runs if it’s short. Our guide on how much to set aside for taxes covers keeping that money ready instead of finding it in a panic.
Charitable donations, personal or corporate, only count for 2026 if they’re made by December 31. And if you’re planning to pull money out of a TFSA and put it back later, withdraw in December: the room returns on January 1. Withdraw in January instead and you’ll wait a full year to re-contribute without penalty.
Locked to the calendar
Equipment in use, charitable donations, dividends you want on your 2026 return, and TFSA withdrawals you plan to re-contribute next year.
The RRSP window
Contributions made in the first 60 days of 2027 can still be deducted on your 2026 return, up to your limit (a maximum of $33,810 for 2026).
None of this works with stale books
You can’t time a bonus against profit you can’t see. If your books are four months behind, year-end planning turns into guessing, and guesses are how clinic owners end up declaring a dividend the corporation couldn’t afford or accruing a bonus that was never needed. Current books in November are what make a December decision possible.
The HST side adds a wrinkle for clinics with both exempt treatment income and taxable sales, because purchase timing can also affect what you claim back. We cover that split in mixed HST for clinics.
FAQ
My corporation’s year-end isn’t December 31. Does this still apply?
Yes, it just splits in two. Equipment timing and the bonus rule key off your corporate fiscal year-end, whenever that falls. Dividends you receive, donations, instalments, and the RRSP all run on the calendar year because they live on your personal return.
Can’t I just deal with all of this when I file in April?
By April, every 2026 option except the RRSP is gone, and even that window closed March 1. Filing season is for reporting what already happened. Planning season is now.
If you’d like a year-end plan built on your clinic’s actual numbers instead of a generic checklist, reach out through our contact page before December sneaks up on you.