Forgot To Update W4, Now Owing Taxes
I got married in 2020 and had failed to realize I needed to update my W-4 from single to married (however my spouse did).
This year, it is showing that I owe state and federal taxes, which hasn't happened in the past. Could this be caused by me failing to update my W-4? And additionally, since I have now updated it to "Married Filing Jointly", is that a better chance that I won't owe next year, since both my spouse and I will have the correct W-4 updates?
Side notes: we did make about 18k more this year, which I am sure impacts it as well, but I'm just wondering if owing could have been avoided had I updated my W-4 last year.