I was actually on track to spend nothing other than hangar, insurance, fuel, and oil changes this year. No unexpected maintenance for the first time since I bought her.
Then the engine had to come apart. Again.
I would've been around 10K+fuel had that not happened. I don't track fuel anymore, but I'm guessing it was somewhere between $7500-10k based on my hours and burn rate.
I used to have an airplane budget line item. I had engine reserves, avionics reserves, general MX reserves. I tracked everything. Then came the first 20k annual. The budget survived that, barely. Then the HSI quit and I needed a G5. That ate up all the remaining reserves. Then the engine quit. I was so far in the hole I didn't even want to know any more. Haven't tracked it since.