My savings bank is currently paying 2.37% taxable or $11,850. If you were a single adult, you would owe $310 in taxes so net 11540.
You can get tax exempt munis that pay 4%. Or $20,000. No tax, so it stays $20K.
You might mutual fund that averaged say 8%. $40,000 taxable. $4300 in taxes, leaving you $35,700. (More risk of course.)