Cross Breed (Bedlington Terrier X Working Cocker Spaniel) Approx. 12kg now he's an adult. Cost £350 to buy him.
Good quality dry dog food, just over £20 per month (Mille Wolfheart)
Vet care plan (all vaccinations, worming, tick & flea, plus discounts, and nail cutting, free nurse consultations) £13.50 per month (very cost effective for first year due to 20% discount neutering, will pay again this year, and decide after that if it is worth it long term.
Non life-time insurance approx. £6 per month (will be more for a pedigree). £99 excess which I had to pay out once this year (toadstool eating puppy!!!)
Treats, mostly cheese from weekly shop, but a few rawhide chews, whimzees vegetable dental chews (bulk buy on ebay), and mixed kibble for treats from various free offers (still going through what I accumulated when he was a pup).
Bedding, now that we have worked out that dog beds are expensive and get immediately destroyed in order for him to pull stuffing out, and have switch completely to faux fur blankets, bedding has got so much cheaper.
Harnesses ruffwear second hand off ebay, he is quite skinny so still just fits an XS and smaller sizes are easy to pick up cheaply as puppies outgrow them. Lead - old climbing rope.
Toys, he is fairly destructive, not sure what I have spent on toys, but did pick up a couple of bundles of dog toys second hand off ebay when he was tiny that have done him well.
If we were proud of our cars he would have costs us an absolute fortune in damage over the last year, but since we only paid £1000 for mine and £450 for DH car we are not too bothered, still had to replace a few seatbelts along the way....the little shit!!!