1. What is this Calculator?

This calculator converts UK net salary to Japanese Yen (JPY) for the 2025-26 tax year. It accounts for standard UK deductions including income tax, national insurance, student loan repayments, and pension contributions.

2. How Does the Calculation Work?

The calculator uses the following formula:

Where:

• Gross Pay — Annual salary before deductions
• Income Tax — UK income tax amount
• National Insurance — UK NI contributions
• Student Loan — Plan 1, 2, or postgraduate loan repayments
• Pension Contributions — Workplace or personal pension
• GBP to JPY Rate — Current exchange rate

3. Understanding UK Salary Deductions

Details: UK salaries typically have several mandatory deductions. Income tax and National Insurance are required by law, while student loan repayments depend on your plan and income. Pension contributions may be mandatory (auto-enrollment) or voluntary.

4. Using the Calculator

Tips: Enter all values in GBP. For accurate results, use your actual tax and deduction amounts from your payslip. The exchange rate should be the current GBP/JPY rate.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find my exact deduction amounts?
A: These are listed on your monthly payslip under "Deductions."

Q2: How often should I update the exchange rate?
A: For most accurate results, use a recent rate from a reliable financial source.

Q3: Does this account for Japanese taxes?
A: No, this only converts your UK net salary to JPY. Japanese taxes would apply separately.

Q4: What if I have multiple student loans?
A: Combine all student loan repayments into one amount for this calculation.

Q5: Is pension tax relief included?
A: This calculator assumes you're entering the gross pension contribution amount.