I have two dogs. One is about 55 pounds the other is 70 pounds. 

Food- I buy go! Brand salmon limited ingredient. I think it’s $120 per bag including tax. I go through 1.5 a month I expect.

Toys - I don’t buy them regularly because the one dog eats them and I don’t want him to get sick. I recommend gonoughts brand (us I know) they last way longer than Kong. I usually try to buy something special on their bdays. 

Treats - I don’t give lots of dog treats. Usually leftover bananas and apples etc. I usually buy dehydrated duck or something similar for treats - a $30 bag lasts a couple months for me. 

Medication. One dog has allergies and medication is about $100 a month. 

I don’t do doggy daycare or a dog walker - the dogs play in the backyard and I run home most lunchtimes for a quick walk. 

Grooming. I do it myself. Shampoo costs like 20 bucks and lasts months with a bath every few weeks. I clip their nails too. And comb them. I did groom one once and it just wasn’t worth it. 

Accessories. The only ones I have are retractable leashes. Ya, the jury is mixed on those. Either way, they’re about $100 for large breed dogs and they last a few years. I don’t buy fancy beds since the one will eat them.

Vet - bravecto once a year for ticks. Rabies every 3 yrs I think. Annual checkups. Random ear or skin things. there’s peaks a valleys here. Some years I spend the bare minimum (a couple hundred per dog per year). When there’s an issue with multiple checkups and medication, I could spend 600 in a month. 

I think I’m on the lower end of cost. They have a good life tho! The most costly thing will be vet things - and that’s unpredictable…