Ontario's 153-day rule for OHIP, explained

Every autumn the same question comes up among Ontario snowbirds: how long can I stay south and keep my health card? The short answer is 153 days in Ontario, or no more than 212 days away, in any 12-month period. The longer answer is that "any 12-month period" is a rolling window, and that is where people get caught.

The rule

To keep OHIP coverage, you must (Ontario.ca, updated 21 July 2025):

• make Ontario your primary place of residence, and
• be physically in Ontario for 153 days in any 12-month period.

The same page says that if you've been outside Ontario for more than 212 days in any 12-month period, you may have to reapply for OHIP. 365 − 212 = 153, so the two sentences describe the same limit from both ends.

The legal text is Regulation 552 under the Health Insurance Act, section 1.5.

New residents have a separate start-up rule: 153 of the first 183 days after they began living in Ontario.

"Any 12-month period" means every 12-month period

This is the part that trips people up. The test isn't the calendar year, and it isn't "the 12 months from when I left". Every 12-month stretch has to hold at least 153 days in Ontario. Look back 12 months from any date, and you need 153 Ontario days in that window.

So the question isn't "how long was I away this winter?" It's "what is the most I was away in any 12 months in a row?"

Worked examples

1. A normal Florida winter: fine

Away from 1 November to 30 April. That is 30 + 31 + 31 + 28 + 31 + 30 = 181 days away. Any 12-month window holds at most 181 days away, so at least 184 days in Ontario. Covered, with 31 days to spare.

2. A long winter: one day too many

Away from 15 October to 15 May.

• October 15–31: 17 days
• November to April: 181 days
• May 1–15: 15 days
• Total: 213 days away

The 12 months ending 15 May hold 213 days away and only 152 in Ontario. Over the limit. Coming home on 14 May instead (212 days away) would have kept you exactly at 153.

3. Winter south plus a summer trip: the rolling trap

Away 1 November to 30 April (181 days), as in example 1. But the September before, you also went to Europe for five weeks: 1 September to 5 October, 35 days.

No single trip is long. Now look at the 12 months from 1 September to 31 August:

• 35 days in Europe + 181 days in Florida = 216 days away
• 365 − 216 = 149 days in Ontario

Short by 4 days. A calendar-year count would never show this, because the two trips fall in different years.

4. Leap years

A 12-month window that includes 29 February has 366 days. The 153-day minimum doesn't change, so in that window 213 days away still leaves 153 in Ontario. The "212 days" figure on the ministry page is the simple version. Don't plan to the last day: keep a margin.

Partial days

The regulation doesn't say how a travel day counts. If you drive out on the morning of 1 November, were you in Ontario that day? Most people count it as an Ontario day, but no official rule says so. If you're near the line, keep a few days of margin and keep proof of your travel dates.

Longer absences

If you plan to be outside Canada for more than 7 months in a 12-month period, Ontario lets you keep OHIP for up to 2 years under conditions. One of them is that you were in Ontario at least 153 days in each of the two 12-month periods right before you leave (Ontario.ca: OHIP coverage while outside Canada, updated 16 January 2026). There are also rules for work and study abroad. Ask ServiceOntario before you rely on any of them, and arrange it before you go.

OHIP abroad is not travel insurance

Even with full coverage, OHIP pays very little outside Canada. For emergency inpatient care in intensive care or an operating room it pays up to $400 (Canadian) a day, and less for other care. The ministry calls travel medical insurance "essential" (same page).

The US side

Days in Florida or Arizona also count toward the US Substantial Presence Test, a different rule with a different window (three calendar years, weighted). The two rules pull in opposite directions: Ontario needs you home at least 153 days, the US wants you there fewer than about 122 days a year on a steady pattern. See the Substantial Presence Test explained.

Keeping the count

The rolling window is what makes this hard to do in your head. A paper diary or a spreadsheet works if you check every 12-month window, not just the calendar year.

I built Sojournal to do this count. Ontario's 153 days is a built-in rule. It checks every 12-month window, shows day by day which days counted and why, and checks a planned trip against the rule before you book it. It needs no location permission and no account, and it's free for unlimited days with one rule at a time. Pro (one payment, no subscription) counts several rules at once, such as OHIP and the US Substantial Presence Test side by side, which is the usual pair for an Ontario snowbird.

Official sources

• Ontario.ca: Apply for OHIP and get a health card (updated 21 July 2025)
• Ontario.ca: OHIP coverage while outside Canada (updated 16 January 2026)
• R.R.O. 1990, Reg. 552, General, under the Health Insurance Act, s. 1.5

Sources checked 22 October 2026. Rules change; check Ontario.ca or ServiceOntario before a long absence. This page is not legal advice.