Gross looks bigger than life
Offer letters quote gross; rent is paid from net. A gross-to-net estimate bridges that gap with a transparent percentage model you control. It will not replace IRS tables, HMRC PAYE codes, or benefits deductions, but it stops fantasy budgeting off headline salary.
Workflow tip
Run best/likely/conservative tax percentages, then feed net into a budget planner. Cross-check salary-after-tax tools on this site when you want another angle. Educational use only.