Should I Get a Dog or a Cat? A UK Guide to Choosing the Right Pet

A quick note before you start
This guide is a straightforward decision framework. If you're renting in England, the misconceptions section below covers what the Renters' Rights Act 2025 changes about asking your landlord for a pet.

In short

The right pet isn't about which animal you like more. It's about which one matches the life you're living right now. The decision comes down to three things: how much daily time you have, what your living space allows for, and what you can sustain financially. UK figures from PDSA and Cats Protection make the budget part concrete, with real published numbers behind it.

The three deciding factors, in brief

• Time
  A dog needs roughly 1–2 hours of active daily attention (walks, play, company); a cat tolerates solo time far better, especially past kittenhood.

• Space
  A dog needs realistic outdoor or nearby green-space access; an indoor cat mainly needs vertical space (shelves, a cat tree, window perches).

• Budget
  PDSA puts the minimum monthly cost of dog ownership at £69–£116; Cats Protection estimates the typical annual cost of a cat at over £1,000.

Why most "dog or cat" quizzes get it wrong

Most online quizzes ask about personality. Are you outgoing or introverted? Tidy or relaxed? That's an entertaining way to spend two minutes, but it answers the wrong question. A dog's needs are measured in hours: someone reliably around for walks and company, whatever their personality type. A cat asks for less time and the same reliability. Someone still has to be there to feed it and keep its tray clean every day, and that matters far more than whether you're a homebody or a socialite.

The question that predicts whether a pet thrives is a practical one: what does an ordinary Tuesday in your life look like, six months from now? How many hours is your home empty? Is there a park or a safe walking route within reach? Can your budget absorb a cost that doesn't go away in the month you're skint? These are unglamorous questions. They're also the ones that decide whether a dog or cat ends up well cared for, and getting them wrong is how a well-meant adoption ends with the animal being rehomed.

None of this means personality is irrelevant once you've settled on a species. It matters hugely when choosing an individual dog or cat, or a particular breed. But at the "dog or cat" stage, lifestyle logistics come first, and that's the framework this guide works through.

The three things that actually decide this

Time

Start here, because it's the factor people underestimate most. A dog is a social animal that generally needs roughly 1–2 hours of active daily attention, and the engagement counts as much as the exercise: a walk spent scrolling on your phone only does half the job. Those hours don't shrink after a long day at work, and they don't shrink when you're ill. Leave a dog alone for long stretches often enough, day after day, and problem behaviours tend to follow. Destructive chewing shows up. So does barking that won't let up, or a low hum of anxiety that never quite settles. The dog is coping with a need nobody's meeting, and a training programme alone won't fix that.

A cat is a different proposition. Cats, particularly past the kitten stage, tolerate solo time far better, and many actively prefer having the run of the house uninterrupted for stretches of the day. That doesn't mean a cat needs nothing: fresh food and water, a clean litter tray, and daily interaction are still non-negotiable, and an under-stimulated indoor cat can develop its own stress behaviours. But the daily time floor is meaningfully lower than a dog's.

The real question to ask yourself is concrete: do you have one to two dedicated hours every single day, including the days you're exhausted or simply can't face it? If the answer is truly yes, a dog is workable. If it's "most days, but not reliably", sit with that before committing. A cat, or a robust backup plan (see the full-time-worker scenario below), may suit you better.

Space

The useful question about space is what it lets an animal do. A dog needs somewhere to toilet and somewhere to run. A well-chosen crate can give it a place to decompress indoors, but outdoor access still does the heavy lifting: a garden is the obvious answer, but a nearby park or safe walking route within a short distance works too, provided you can realistically get there several times a day in all weather. That commitment lasts the dog's whole life. A dog kept in a flat with no outdoor access nearby, and an owner who can't commit to multiple daily outings, is a mismatch regardless of how large the flat itself is.

An indoor cat's needs run differently. Cats are climbers and watchers by instinct, so what matters is vertical space (a cat tree, shelves it can climb to watch the room from) more than floor area. A well set-up one-bedroom flat with good vertical space and a window with a view can suit an indoor cat far better than a large house with none of that. Outdoor access, whether a garden or a secure catio, benefits a cat's welfare, but a cat doesn't need it the way a dog needs its outdoor time.

Some homes simply aren't set up for a dog. No amount of enthusiasm fixes that, though a future move might.

Budget

This is the part most quizzes skip entirely, and it's where real figures help more than gut feeling. PDSA puts the minimum monthly cost of dog ownership at £69–£116 (small dog £69, medium £83, large £116), a figure that covers everyday essentials, including routine parasite prevention, but excludes setup costs, unexpected vet bills, professional grooming, and training classes. Cats Protection separately states that the typical annual cost of a cat is estimated to be over £1,000 each year.

It's tempting to set the dog's monthly figure against the cat's yearly one and conclude the cat is dramatically cheaper. But one is monthly and the other yearly, and comparing them by eye gives a misleading answer. For a proper month-for-month, year-for-year breakdown of both, see our dog vs cat lifetime cost guide; we've deliberately kept the full maths there, so the figures stay consistent between the two articles.

One more thing to flag: the "minimum monthly" and "typical annual" figures above cover ongoing running costs only. Lump-sum costs sit on top of that: setup such as a bed, a carrier, first vet checks and neutering, plus professional training or an unplanned vet visit. These tend to land as a bigger one-off hit for dog owners than cat owners, simply because dogs are larger animals with proportionally higher veterinary and insurance costs on average. Budget for the average, but plan for the spike.

Try a practical test before you commit either way. Pull up your last three months of bank statements and ask whether the lower end of these figures would have gone unnoticed, or whether something else would have had to give. A pet's costs don't pause for a quiet month at work or a surprise bill. They're a fixed new line in the budget for the animal's whole life, which PDSA puts at around 14 years on average for dogs and cats alike. If the answer is "it would be tight most months", weigh that as seriously as time and space.

Match your situation to a real scenario

Here's how the framework plays out against four common UK living situations. Treat them as starting points; you still have to check each one against your own week.

• Full-time office worker, small flat, no garden, travels often. Better starting fit: Cat. Long, unpredictable hours away from home and frequent travel are a poor match for a dog's daily time needs; a cat tolerates a structured absence far better, provided feeding and litter care are covered.

• Hybrid worker, small garden, home most days. Better starting fit: Either, with a solid coverage plan for a dog. A part-time-at-home schedule can support a dog if the days in the office are covered by a dog walker, daycare, or a partner; without that plan, default to a cat.

• Family with young children, someone home most of the day. Better starting fit: Either, dog or cat, with supervision built in. Both can work well in a family with children; the deciding factor is less the animal and more whether an adult is consistently available to supervise interactions and keep routines steady for a young dog, or to manage a cat's need for a quiet retreat space away from a busy household.

• Retired or with reduced mobility. Better starting fit: Cat, or a calm, lower-energy dog with support. A cat's lower daily activity demand suits reduced mobility well; a dog can still work here, but only for a lower-energy breed and ideally with a family member or dog walker able to help on harder days.

Here's a little more on each of the four.

People argue with the first scenario, the full-time office worker with no garden, more than any other, usually because they already love dogs and don't want the framework to say cat. But long, unpredictable office hours plus regular travel is exactly the combination a dog struggles with most: the daily hours simply aren't there, and a dog boarded or walked every working day quietly becomes an ongoing logistics project you have to keep managing. A cat copes with that rhythm far better, as long as someone reliable handles feeding and the litter tray. If it's the small flat holding you back and your hours are fine, our flat-living guide goes deeper into what works there.

Hybrid working is the real grey area. "Either" comes with a condition: your office days need to be covered, with a walker or daycare place booked before the dog arrives. Leave it until things start slipping and you'll be arranging care in a hurry.

Families with young children attract the most assumptions, and most of them favour the dog. Sometimes that holds. Often the deciding factor is simpler: whether an adult has time to supervise every interaction in the early months, whichever pet it is, and whether a cat would have a retreat space it can reach when the house gets loud.

For retirement or reduced mobility, a cat's lower daily activity demand does most of the practical work. A dog can still fit here, but realistically only a calm, lower-energy breed, and ideally with a family member or dog walker able to step in on days when walking isn't physically possible. A dog whose exercise needs consistently outstrip what its owner can give is a welfare problem waiting to happen.

Two caveats sit underneath all of this. Plenty of dog owners work full-time and manage it well, with a coverage plan in place from day one, before the dog starts struggling. And the stereotype of the family dog can mislead. A calm cat, properly introduced and given its own space, can suit a young family just as well as a boisterous puppy nobody has time to train, and sometimes better.

Common misconceptions worth clearing up

"Cats don't need any attention." Cats need less daily time than dogs, not none. A cat left with food and a clean tray but nobody to play with can become withdrawn or develop stress-related behaviours over time. A cat that seems independent still wants a relationship with its owner, just on different terms to a dog.

"Small dogs are easier than cats." Size is a poor proxy for how much a dog will ask of you. A small terrier or spaniel can have as much energy, and need as much daily engagement, as a much larger breed, sometimes more. Energy level and temperament are far better guides to how manageable a dog will be. Don't assume "small" means "low-maintenance."

"Renting means no dog." This one's increasingly out of date, at least in England. The Renters' Rights Act 2025, in force from 1 May 2026, means landlords in England can no longer unreasonably refuse a tenant's request to keep a pet in a private (assured) tenancy. This doesn't apply to social housing, and it's England-only: Scotland, Wales, and Northern Ireland have their own separate rules. So if you rent in England, ask. For the full mechanics of how this works in practice, see our flat-living guide.

What if neither one fits?

For some readers, working through this framework leads to an uncomfortable answer: neither a dog nor a cat fits right now. That's a perfectly good outcome. Better to find out at this stage than six months after bringing an animal home.

If you're set on getting a pet but aren't sure a dog or a cat is even the right family for you, our first-time pet owner guide covers the full range of options, including rabbits, small mammals, birds, and fish, several of which suit lower-time or smaller-space households far better than a dog or cat would. And if allergies are part of what's driving the decision, for you or someone in your household, start with our pet allergy guide before you commit to either species.

Frequently asked questions

Should I get a dog or a cat?

It depends on three things: how much daily time you have (a dog needs roughly 1–2 hours of active attention a day, a cat needs far less), what your space allows for (outdoor access for a dog, vertical space for a cat), and what you can sustain financially (PDSA: £69–£116/month minimum for a dog; Cats Protection: £1,000+/year typical for a cat). Match those three to your actual life first; which animal you'd prefer in the abstract comes second.

Is a cat or dog better for a first-time owner?

Generally a cat, because the daily commitment is more forgiving and easier to learn as you go. That said, a calm, well-supported first-time owner (with time, a coverage plan, and realistic expectations) can absolutely succeed with a dog too. What counts most is whether the commitment matches the reality of your week.

Can I own a dog if I work full time?

Yes, but only with a proper coverage plan (a dog walker, doggy daycare, or a partner's staggered schedule) in place before the dog arrives. A dog left alone for a full working day with no coverage, day after day, isn't a workable long-term set-up regardless of how much you love dogs.

Do dogs or cats live longer?

It's a common assumption that cats outlive dogs, but PDSA's own published figures don't support a clean species split. PDSA states average dog lifespan is around 14 years, and separately puts average cat lifespan at roughly the same, around 14 years too. Lifespan varies far more by size than by species. PDSA's dog data (citing O'Neill et al. 2013) gives life expectancy by size band: small dogs 7.1–14.2 years, medium dogs 8.4–13.5 years, large dogs 5.5–13.1 years. PDSA doesn't publish a matching size breakdown for cats. If lifespan matters to your decision, a dog's size is a more useful thing to research than "dog vs cat" as a category.

What's cheaper to own, a cat or a dog?

On PDSA and Cats Protection's figures, a cat is generally the cheaper option: PDSA's dog minimum is £69–£116 a month, Cats Protection's typical cat cost is over £1,000 a year. For the full month-by-month, year-by-year breakdown (and how those two figures actually compare once converted to the same time period), see our dog vs cat lifetime cost guide.

Is a cat or dog better for a small flat?

A cat generally suits a small flat better by default, since it doesn't need outdoor access in the way a dog does. A dog can still work in a flat with realistic, committed daily outdoor access nearby. See our flat-living guide for the full picture, including England-only Renters' Rights Act 2025 mechanics if you rent.

Are dogs or cats better with children?

Neither is categorically better. Both can work well in a family with children, and both need supervision, particularly with younger children who haven't yet learned safe handling around animals. What decides it is temperament (a calm individual animal, matched carefully) and a consistent adult presence to manage introductions and set boundaries in the early weeks. If you're choosing between two calm, well-matched individual animals, the household's supervision habits will do more to determine how well it goes than whether you picked a dog or a cat.

The bottom line

There isn't an objectively better pet: only the one that matches the life you're living now, not the one you're hoping to live eventually. Be honest about your daily hours, what your space allows, and what your budget can absorb through the lean months as well as the good ones. Get those three things right and the rest, from breed to where you adopt, tends to sort itself out.