it's certainly possible because of marginal tax brackets
an example 2020 taxable in MFJ $81K tax about $9K effective rate is only about 11%
add 27% more income - about $22K tax jumps by $4.8K (22% bracket) about a 52% increase. then there is the effect that more income has on other items on your return.
a recommendation is to print out the 2020 return and as best as possible compare it to 2021.
