Home / Tax Rebate Calculator
TREGGENA ADVICE - CASTLE EDEN & UK-WIDE
Could you have
paid too much tax?
Compare the Income Tax deducted from your employment income with a simplified full-year estimate. Use final figures for a completed tax year.
YOUR FIGURES
Start with the numbers.
Employment income only · Completed tax years 2023/24–2025/26 · UK residents with the standard Personal Allowance, including its income taper. Excludes other income, taxable benefits, pension/Gift Aid adjustments, Marriage Allowance, CIS and National Insurance refunds.
UNDERSTAND THE ESTIMATE
Three things to keep in mind.
Use your final records
Gather P60s and relevant P45s. Include all employment income and tax deducted in the selected year, not just your latest job.
Check what qualifies
Entering an expense does not make it allowable. Employment expense rules are restrictive; check eligibility and exclude costs your employer reimbursed.
Review the whole picture
Other income, benefits or allowances can change the result. A positive estimate is not a refund approval, and adviser fees are separate.
BEFORE YOU RELY ON THE RESULT
A little more detail.
Information checked 2 October 2026. Income Tax rates and allowances · Employment expense relief