All Charitable donations must be postmarked no later than December 31, 2021 to be included on your 2021 tax statement. Any donation postmarked or received after December 31 will be included in your 2022 tax statement. Be aware that due to varied processing times of the credit card companies and banks, credit card and ACH check donations made at the end of the year may not be processed before December 31, 2021 and will be included in your 2022 tax statement.