The Monthly Cost of Owning a Pet
Most people think about the cost of getting a pet. Fewer think carefully enough about the cost of keeping one. After the initial setup expenses of the first year, pet ownership settles into a monthly rhythm of predictable costs — but that rhythm still requires a meaningful and consistent budget. Here is what responsible pet ownership typically costs on a monthly basis in the UK.
Food
Food is the most obvious and most variable ongoing cost. A small dog eating a quality dry food diet might cost £20 to £40 per month to feed. A large or giant breed can easily cost £60 to £120 per month. Cats are generally less expensive to feed — £15 to £40 per month depending on whether you choose wet food, dry food, or a combination. Raw feeding diets tend to cost more, particularly for larger dogs. Premium and veterinary prescription diets carry a significant price premium over standard supermarket options and may be necessary for pets with health conditions.
Insurance
A comprehensive lifetime pet insurance policy costs between £25 and £80 per month for most dogs, and £10 to £35 per month for most cats, depending on breed, age, and cover level. Premiums increase as your pet ages and following any claims. Budgeting for annual premium increases of 10 to 20 per cent as your pet moves into middle and older age is prudent. Skipping insurance to save money creates a significant financial risk — a single emergency or chronic illness can cost thousands of pounds.
Preventive Healthcare
Monthly preventive treatments include flea prevention, worm treatment, and, for dogs, tick control. Quality veterinary-grade treatments cost approximately £8 to £15 per month for a cat and £10 to £20 per month for a dog. Annual vaccinations, when spread across twelve months, add approximately £5 to £10 per month. An annual health check consultation with your vet, which is separate from vaccination appointments, typically costs £40 to £70 and is worth budgeting for.
Grooming
Grooming costs depend heavily on breed. Short-coated dogs such as Labradors or Greyhounds require very little professional grooming. Breeds with coats that grow continuously — Cockapoos, Bichon Frises, Poodles, Schnauzers — typically require professional grooming every six to eight weeks at a cost of £40 to £80 per session. Over the course of a year, this adds up to £300 to £700. Home grooming equipment can reduce frequency but not eliminate professional appointments for long-coated breeds. Cats generally groom themselves but long-haired breeds such as Persians and Maine Coons benefit from regular professional grooming at a similar cost.
Pet Sitting and Boarding
If you work full-time and own a dog, daily dog walking or day care is a significant ongoing cost. Dog walking services typically charge £10 to £20 per walk. Dog day care costs £20 to £40 per day. Over the course of a month, regular walking or day care can add £200 to £400 to your monthly expenditure. Boarding costs during holidays are addressed below.
Hidden Costs That Catch Owners Off Guard
Boarding During Holidays
This is one of the most consistently underestimated costs of pet ownership. A week in a quality boarding kennel for a dog typically costs £200 to £500 depending on location and the level of care provided. A home boarder or pet sitter charges similar rates. For a household that takes two holidays per year, this alone adds £400 to £1,000 annually to the cost of pet ownership. Cats are generally less expensive to board, with cattery fees running £10 to £20 per night. Over a two-week holiday this is still £140 to £280.
Dental Care
Dental disease is extremely common in pets and is frequently underestimated as a cost. A professional dental clean under general anaesthetic typically costs £200 to £500. For some animals, extractions are required, adding significantly to the bill. Many insurance policies do not cover dental disease unless it results directly from an accident, meaning this is often an out-of-pocket expense. Annual dental checks and home brushing can reduce the frequency of professional cleans, but not eliminate them entirely for many animals.
The Emergency Fund
Even with comprehensive insurance, unexpected veterinary costs arise. Excess payments, co-insurance percentages, exclusions, and gaps in cover mean that many owners face out-of-pocket costs during health crises. A dedicated emergency fund of at least £1,000 — ideally £2,000 to £3,000 — is considered a realistic minimum by most veterinary professionals. Building this fund takes time, so starting as early as possible is important.
Replacement and Wear
Leads, collars, harnesses, beds, and toys wear out. For active or heavy-chewing dogs, replacement of these items can cost £100 to £200 per year. Crate replacements as puppies grow, new food bowls, litter trays, and scratching posts for cats all add up over time.
A Financial Readiness Check
Before getting a pet, it is worth being honest with yourself about your financial position. Can you comfortably absorb £80 to £150 in monthly pet-related expenses? Do you have or can you build an emergency fund to cover unexpected vet bills? Can you afford boarding during every holiday you take? Do your household arrangements allow for the full cost of caring for this animal?
The RSPCA and Dogs Trust both offer online cost calculators that can help you model total annual costs for specific species and sizes. These tools are worth using before making a commitment, as they provide a realistic picture that goes beyond the initial purchase price. Pets surrender to shelters due to financial hardship causes real suffering — being prepared prevents this outcome for both owner and animal.