Educational Resources
Regulatory & Statutory Guides
CalcGeo calculators don't just output numbers—we explain the statutory rules, legal frameworks, and official tax tables behind every calculation.
United States (California)6 min read
Understanding California Paycheck Deductions & Taxes
A complete guide to California payroll taxes: from SDI elimination of taxable wage caps to FTB progressive tax schedules, FICA caps, and overtime rules.
Verified RulesRead Guide & Tool
Canada (Ontario & Toronto)7 min read
Ontario Land Transfer Tax & First-Time Buyer Rebates Explained
Understand closing costs in Ontario: how provincial and Toronto municipal tax tiers interact and how to maximize first-time buyer rebates up to $8,475.
Verified RulesRead Guide & Tool
Ireland8 min read
How Irish Income Tax, USC, and PRSI are Calculated
A breakdown of the Irish PAYE system: how the Standard Rate Cut-Off Point (SRCOP), personal tax credits, and USC bands combine to determine your net pay.
Verified RulesRead Guide & Tool