Make a donation Give to KLC today and earn a dollar-for-dollar credit on your 2026 Arizona state taxes. $50.00 $100.00 $506.00 The maximum QCO credit donation amount for 2026 for single filers $1,009.00 The maximum QCO credit donation amount for 2026 for joint filers Custom Amount Please enter an amount $ One-Time Donation Monthly Donation Quarterly Donation Support us by covering the fees we have to pay for credit card payments. 3% Cover the Fee Donate Donate The maximum QCO credit donation amount for 2026: $506 single, married filing separate or head of household; $1009 married filing joint.