We're in a position that we may not even need the Joint Sponsor anyhow. My husband makes above the guidelines as well, but where he re-patriated back to the US to reistablish his domicile and transferred from "company-Canada to company-USA" and we didn't have his 2021 tax return yet due to tax extension, we got a joint sponsor anyways just in case. Hopefully we will be okay with just my husband being the sponsor.
At NVC we provided his Canadian W2s equivalent /1040 and tax statements for 2018,2019,2020.. and a note stating why we didn't submit his 2021 due to tax filing extension, and we had a joint sponsor just in case.
Well, in May my hubby transferred to his companies office in the US and I now have his paystubs from May until now showing his income amounts, and will provide his 2021 tax statement and W2 equivalent and tax returns at the consulate.
So fingers crossed we will be OK!