For a SR22 G2 NA, plan on $4k to $5k. The annual itself might be $2500, but they will always find stuff and the parts are expensive. This does not cover the $14k for the 10 year chute repack.
Be aware that in 5 years, you will need to upgrade the avionics for ADSB. The minimum cost seems to be $15k.
If you are mechanically inclined, have the time and are physically able - doing an owner assisted annual can run as low as $1000. If you go by the Cirrus checklist, this can take 10 to 12 days (4 to 5 hour each day). You will need a mechanic of course to supervise your work. I have done this for 4 years now and been really pleased. But it is not for everyone. It is quite brutal and exhausting to do it yourself. So it is a labor of love…