45 Day Rule Calculator

45 Day Rule Calculator calculator can be used to determine if you can claim expenses back from your tax return when you've paid for business expenses within 45 days of the end of a tax period.

Input Parameters

Calculation Results

Calculation Results

Please enter the input values and click Calculate to see the results.

Calculation Formula

Days difference = Tax Period End Date - Expense Date

Where:
Tax Period End Date: The last day of your tax period
Expense Date: The date you paid the business expense
Days difference: The number of days between the tax period end and the expense date

45 Day Rule Calculator Calculator Usage Guide

Learn how to use the 45 Day Rule Calculator calculator and its working principles

What is the 45 Day Rule?

The 45 Day Rule is a tax rule that allows you to claim business expenses back from your tax return if you've paid for them within 45 days of the end of a tax period.

How to Use This Calculator

  1. Enter the last date of your tax period (e.g., 31 March 2023)
  2. Enter the date you paid the business expense (e.g., 15 March 2023)
  3. Enter the amount of the expense in pounds (£)
  4. Click the "Calculate" button to see if you can claim the expense back

Example

If your tax period ends on 31 March 2023 and you paid a business expense on 15 March 2023, you can claim this expense back as it was paid within 45 days of the tax period end.

Important Notes

  • This calculator is for informational purposes only and does not constitute tax advice.
  • Always consult with a qualified tax professional for specific tax guidance.
  • The 45 Day Rule applies to certain types of expenses and may have limitations.