Ours are all rescue greyhounds, so one off donation costs of around £100 each.
We lost our elderly bitch last month (one of three hounds) so we are still re-adjusting finances.
The insurance for all three was around £140 a month.
Food - we got a freezer full every three months - about £800 a year for all three. Plenty of treats on top, partly because madam used to spit out tablets unless they were cunningly disguised. Plus things like sardines, pigs ears, Bonio for treats etc.
Holiday - cottage at Little Dumpledale - not many places will take three large dogs - £500 or so.
Hydrotherapy - she went twice a month at £30 a time.
Vets bills - because of her arthritis these were high. Probably over £2K in the past year. The other two are incredibly healthy, and one only went for his boosters and nail clip. When she was PTS, we paid for her to be visited at home by the vet, and we specified individual cremation (more expensive) so that was all over £200, IIRC.
Collars and coats, each hound has a selection of very beautiful collars and a range of smart coats. Not cheap. For instance, I paid £60 for a new waterproof coat for our big lad when I was at Olympia just before Christmas.
Toys - rightly treated with aristocratic contempt by all three, apart from one who has a guilty penchant for a squeaky, and a habit of collecting and hiding kitchen implements.
Activities - one has done his Bronze, Silver and Gold CGC Awards. We pay to hire a secure greyhound field regularly for safe off lead exercise. We take them to lots of greyhound events and to things like charity dog shows, sponsored walks etc. I'm about to start dog training classes with our new foster girl.
Car and home - we've moved up to a diesel estate (essential). House is definitely more prone to wear and tear and needs a LOT more cleaning. We have masses of Ikea duvets around for pointy reclining. Yankee Candles - essential for coping with the satanic greyhound bottom of doom.
Satisfaction, joy and love brought - priceless. 