does the notice show the calculation of the penalty because we have no access to your reporting or the notice
the rules:
withholding and timely estimated tax payments must meet the lowest of either of the following
1) 90% of current year tax
2) 100% of last year's tax. That jumps to 110% if your prior year adjusted gross income was over $150,000
also there is no penalty if you owe $1000 or less after subtracting withholding (estimates don't count) from 90% of the current year tax.
not knowing how much is involved we don't know if requesting first time abatement is advisable.