Iggy Azalea's Too Fancy to Pay Taxes!

Iggy Azalea can't catch a break this year -- she just got slammed with another tax lien.

According to docs ... Iggy's on the hook for $269,980.20 in federal taxes from 2015.

Back in April the rapper was hit with a $391,056.55 lien for unpaid taxes from 2014. Do the math and that's $661k total for both liens.

Almost makes Nick Young and his baby mama seem like no big deal. Almost.