you may need to amend 2021 since you were only allowed 75% of the maximum for 2021.
self only - under 55 $2700
self only - 55 or over $3450
if there was family coverage (spouse) the amount that could be contributed would depend on additional factors such as the age of your spouse, whether your spouse was covered by a high-deductible plan, whether covered by medicare, months covered.
