Snowbirds, remote workers and retirees have long used Mexico as a part-time base — and the number of people splitting the year between Mexico and home keeps growing. The math is simple: 180 days. That's the maximum stay a visitor permit (FMM) allows, and it's also the threshold many Canadians and Europeans aim for, since keeping physical presence at home for at least half the year preserves their access to public healthcare systems back home.

The appeal runs in both directions. Northern Europeans and Canadians flee winter for Mexico's coasts, while residents of Mexico's beach towns often head home during the May-to-October stretch, when heat and humidity at places like Puerto Vallarta and Cancún get oppressive. Others time their stays around family, work or medical needs.

One number to watch: immigration officers no longer automatically stamp visitors in for the full 180 days, and shorter allowances are increasingly common. So-called 'perpetual visitors' — people who exit and immediately re-enter to string together long stays — are being flagged by the computerised entry systems, and some have been turned away at the border. Mexperience's advice is blunt: if you plan to return year after year or stay longer term, apply for legal residency rather than leaning on repeated visitor permits.

Money matters shape the six-month rhythm too. Landlords in Mexico offer better rates for rentals of six months or more, and if you're renting out your primary home back home to fund the Mexican stay, a half-year tenancy is usually the practical minimum on that side as well. Note that on a visitor permit you cannot legally work or earn income in Mexico, and banks now generally require a residency permit before opening an account. Volunteering, however, is permitted under the FMM.

Healthcare is another big draw. Short stays up to 90 days can be covered by trip-protection insurance; longer stays warrant extended-stay emergency and medical coverage, which typically includes medical evacuation. Many part-timers — especially under-insured Americans — schedule dental work or medical procedures during their Mexican months at a fraction of home prices, and even some Canadians and Europeans use the stay for treatments their public systems don't cover, such as dental or cosmetic work.

If a residency application is on the cards, Mexperience notes that preparing a solid file up front saves rejections and hassle. For anyone who can work online, the rise of location-independent 'knowledge professionals' has only made the half-and-half lifestyle easier to sustain. It's a trend with deep roots — foreigners have been writing about making a life in Mexico for decades — but today's part-time residents are more transient than the expats of the past, thanks to cheaper long-haul travel and flexible work.

For travellers, this is less a holiday story than a lifestyle template: Mexico rewards longer stays, and knowing the visa, insurance and rental maths makes a winter there genuinely feasible.