Bunching donations means giving all the donations that you would normally give in more than one year all in the same year. For example, give the donations you would normally give in 2023 in early 2024. Give your normal 2024 donations in 2024. Then give the donations you would have given in 2025 in 2024. So you are bunching the donations for 3 different years into 1 year thus increasing the amount of deductions you can make in that one year and perhaps having enough to itemize deductions in that year. You would then take the standard deduction in the other years.
