Short answer: yes, pet insurance goes up every year your pet ages. And it doesn't go up by a small, predictable amount. The increases accelerate as your pet gets older, with the steepest jumps happening between ages 7 and 10. By the time your dog reaches 12, you could be paying 3-4 times what you paid when they were a puppy.
This catches a lot of pet owners off guard. You sign up when your Labrador is 1 year old and pay £18 per month. Feels reasonable. Seven years later you're paying £45 per month, and by age 10 the renewal letter says £65. Nothing has changed except your dog got older.
Typical premium increases year by year
These figures represent a mid-risk breed (like a Labrador or Cocker Spaniel) on a lifetime policy. The pattern is similar across breeds, but the starting number and the multiplier vary:
- Age 1: £15-18 per month (baseline)
- Age 2: £16-20 per month (5-10% increase)
- Age 3: £18-22 per month (10-15% increase)
- Age 4: £20-25 per month (10-15% increase)
- Age 5: £23-28 per month (12-15% increase)
- Age 6: £27-33 per month (15-18% increase)
- Age 7: £32-40 per month (18-22% increase)
- Age 8: £40-50 per month (25-30% increase, plus co-pay kicks in)
- Age 9: £48-60 per month (20-25% increase)
- Age 10: £55-70 per month (15-20% increase)
- Age 11: £62-80 per month (12-15% increase)
- Age 12: £70-90+ per month (10-15% increase)
Notice how the percentage increases are largest between ages 6 and 9. This is the window where the premium roughly doubles. By age 12, you're paying approximately 4 times what you paid at age 1. For expensive breeds like French Bulldogs or English Bulldogs, these numbers are higher: a Frenchie that starts at £35 per month could reach £120+ per month by age 10.
Why premiums increase with age
Insurers aren't being arbitrary about this. Older pets genuinely cost more in claims. The data from ABI market reports is clear: pets aged 8+ account for 62% of total claim value despite being around 30% of insured pets. The average claim for a dog over 8 is £1,400, compared to £650 for a dog under 4.
The conditions that drive expensive claims are age-related. Cancer, arthritis, organ failure, diabetes, heart disease. These conditions barely exist in young pets but become increasingly common from age 6 onwards. A 10-year-old dog is roughly 8 times more likely to develop cancer than a 3-year-old.
And when older pets do get sick, treatment costs more. They need more diagnostic tests. They take longer to recover from surgery. They're more likely to need specialist referral. They need ongoing medication rather than one-off treatments. All of this adds up, and insurers pass those costs directly to policyholders through higher premiums.
There's also a selection effect. Healthy pets whose owners never claim tend to drop their insurance as premiums rise (because they feel they're not getting value). This leaves the insured pool weighted towards pets that do claim, which pushes average claim costs higher, which pushes premiums higher. It's a cycle that accelerates with age.
The age 8 co-pay cliff
The single biggest shock in pet insurance pricing hits at age 8. This is when most insurers introduce a co-pay clause, typically 20% of every claim above the excess. Some insurers add it at age 7, a few at age 9, but 8 is the most common trigger.
Before co-pay, you just pay your fixed excess (say £100) and the insurer covers the rest. After co-pay kicks in, you pay the excess PLUS 20% of the remaining bill. On a £2,000 claim with £100 excess: before co-pay you pay £100. After co-pay you pay £100 + 20% of £1,900 = £480. That's a massive difference.
Some owners don't realise co-pay has been added until they make a claim. It's in the renewal documents, but buried in the terms. Always check the "co-payment" or "contribution" section of your renewal carefully once your pet passes age 7.
A few insurers (Petplan, for example) offer policies with no age-related co-pay. These cost more per month, but they don't hit you with unexpected out-of-pocket costs at claim time. Whether the higher monthly premium is worth avoiding co-pay depends on how likely your pet is to need expensive treatment. For breeds with known age-related conditions (Cavaliers with heart disease, Golden Retrievers with cancer), avoiding co-pay usually makes financial sense.
What to do when premiums become unaffordable
By age 10-12, some owners find themselves paying £70-100+ per month. That's £840-1,200 per year. At that point, you might question whether insurance still makes sense. Here are your options:
Increase your voluntary excess. Going from £100 to £300 excess can reduce your premium by 15-20%. You're accepting more risk per claim, but the monthly cost becomes more manageable. This works best if your pet is currently healthy and you're insuring against catastrophic costs rather than routine illnesses.
Downgrade your cover type. Switching from lifetime to time-limited cover can save 30-40% on your premium. The trade-off: any existing conditions might lose cover (depending on the insurer's terms for downgrades within the same company). And new chronic conditions will only be covered for 12 months. But if you're otherwise going to cancel entirely, a cheaper policy is better than no policy.
Reduce your benefit limit. If your current policy has a £12,000 annual limit but the most expensive treatment you'd realistically pursue is £5,000, dropping to a lower limit saves money. Not all insurers offer flexible limits, but some do.
Self-insure with a savings buffer. Some owners decide to cancel insurance and put the equivalent monthly amount (or more) into a savings account. If your dog is 11 and you're paying £80 per month, that's £960 per year going into savings. After 2 years you'd have £1,920 saved. The risk: if something happens in month 2 costing £5,000, you don't have enough saved. This approach only works if you genuinely have the discipline to save and enough existing savings to cover an emergency.
Don't just cancel without a plan. The worst outcome is cancelling insurance and then facing a £4,000 vet bill you can't afford, which leads to either debt or having to make treatment decisions based on money rather than what's best for your pet.
Should you insure an older pet for the first time?
If your pet is already 7, 8, or older and has never been insured, should you start now? It depends on two things: their current health and your financial situation.
The immediate problem with insuring an older pet for the first time is that any existing conditions are excluded. If your 8-year-old dog already has arthritis, that won't be covered. If they've had ear infections treated, ear conditions are excluded. The policy only covers genuinely new conditions that develop after the start date.
For a healthy older pet with no prior conditions on their vet record, starting insurance can still be worthwhile. You'll pay more per month than you would have starting at age 1, but you'll be covered for cancer, organ disease, and accidents, which are the expensive risks at that age.
For a pet with existing health issues, new insurance may offer limited value because the most likely expensive conditions are already excluded. In that case, building a savings buffer might be more practical.
If you're thinking about insurance for an older pet, get quotes from 4-5 insurers and compare not just the monthly cost, but the exclusions. Some insurers are more generous than others about what they'll cover on an older animal.
The case for starting young
The single best thing you can do to manage lifetime insurance costs is start when your pet is a puppy or kitten. Here's why:
No pre-existing conditions. A 12-week-old puppy has no vet history, so nothing is excluded. You're buying coverage for everything that might happen in their life.
Lower starting premium that rises gradually. You're on the lower end of the age curve for years before it starts climbing steeply.
Claims history protection. Continuous cover means conditions that develop while you're insured remain covered at renewal. If you start at age 5, conditions from ages 1-5 are pre-existing and excluded forever.
Some insurers reward loyalty. Petplan, Bought By Many, and a few others offer small discounts (3-5%) for customers who've been with them for 3+ years without a claim. Starting young maximises this benefit.
The bottom line: if you're going to insure your pet at all, start as early as possible and maintain continuous cover. Breaking your cover, even for a month, can turn subsequent conditions into "pre-existing" exclusions.
Use our pet insurance estimator to see how age affects the cost for your specific breed.