UD5 Toolkit
Customs Duty Estimator – Import Tax & Tariff Quick Reference
Get a rough estimate of customs duties when importing goods to the US or EU. Input item value, category, and origin to see potential extra costs.
Tag: Sales Tax Calculator
6+ toolsUK Tax Code Checker - Online Understand Your Code
Enter your UK tax code and see an explanation of what the numbers and letters mean. Simple educational reference. No data stored.
W‑4 Withholding Estimator – Online Simple Tax Refund Checker
Enter income, pay frequency, and expected deductions to estimate your tax refund or balance due. Simplified model.
Simple Tax Credit Checker - Online Estimate GST/HST & Climate
Quick eligibility estimator for Canadian GST/HST credit and climate action incentive based on income and family size. For informational purpose only.
Split Payment Calculator - Online Divide Bill with Fees & Tax
Divide a total bill among multiple people considering tax and service fees. See exactly who pays what.
Bill Splitter with Tip & Tax - Online Shared Expense Divider
Enter total bill, tip %, tax amount, and number of people. Instantly see what each person owes. Handles uneven splits too. No data saved.