Tax Calculators — Use our simple calculators to estimate what you may be owed.
Our tax calculators are designed to help you get a quick estimate based on your circumstances. Whether you want to check a possible tax refund, work out a CIS tax rebate, or calculate eligible mileage, these tools can give you a clearer idea of what you may be able to claim.

Estimate your potential claim with our tax calculators
Understanding what you may be owed can be the first step towards making a claim with confidence. Our calculators are here to help you get a simple estimate based on the information you provide. Each tool is designed to make things clearer, quicker, and easier to understand.
Disclaimer: Please note that calculator results are only estimates and may not reflect your exact tax position. The amount you may be entitled to claim will depend on your full circumstances and how HMRC rules apply to your case.
Choose a calculator
1. Tax Refund Calculator
Get an estimate of how much tax refund you may be able to claim based on your work-related expenses or overpaid tax.
2. CIS Tax Rebate Calculator
Estimate how much CIS tax rebate you may be owed based on deductions, income, and allowable expenses.
3. Mileage Calculator
Work out your potential mileage claim for qualifying work travel using your business miles and vehicle type.
Which calculator should I use?
Tax Refund Calculator
Use this calculator if you are employed, think you may have overpaid tax, or want to check whether eligible work-related expenses could lead to tax relief.
CIS Tax Rebate Calculator
Use this calculator if you work under the Construction Industry Scheme and want to estimate whether CIS deductions may have left you owed money back.
Mileage Calculator
Use this calculator if you use your own vehicle for qualifying business travel and want to estimate the value of a potential mileage claim.
Simple tools to help you understand your tax position
Many people are unsure where to start when it comes to tax refunds, CIS rebates, or claiming work-related expenses. Our calculators are designed to make that first step easier by giving you a quick estimate based on the details you enter. Whether you are checking a PAYE tax refund, reviewing CIS deductions, or working out mileage for business travel, these tools can help you understand what may be possible before taking the next step.
At GO TAX REFUNDS, we aim to make tax simpler, clearer, and easier to manage, with practical tools and support designed around real situations.
Need help getting started?
Get in touch with our team or book a call for clear, straightforward support with your tax refund or return.
