Sharon Ben-Moshe is the founder and editor of OBBBAcheck. She built the site to give tipped and overtime workers an honest, accurate picture of the One Big Beautiful Bill Act tip and overtime deductions — including the FICA taxes many calculators leave out, and the exact amount to enter on W-4 Line 4b.
Sharon is the builder behind OBBBAcheck, not a credentialed tax professional. Every figure on the site is checked against primary sources — IRS guidance, the OBBBA statute, and Social Security Administration data — and the content is meant as well-researched education, not personalized tax advice. OBBBAcheck plans to add a credentialed reviewer (a CPA or enrolled agent); see the About page for our editorial standards.