Hello!
1. Get a form W4 from IRS site and follow instructios to actually estimate the appropriate number of deductions you need to claim
or
2. Get TT software early and do a what-if game, namely "guess your w-2 for the year (multiplying by 1.5 the income and taxes witheld on your end of August paystub by 1.5) and your deductions and see what TT says: if you will owe taxes at the end of teh year, go back to W4 and/or pay estimates taxrs
hope this helps!
