💰 Per Diem Pay Calculator
Calculate net take-home per diem pay after taxes and deductions
Percentage of per diem subject to income tax
Federal + state income tax rate for taxable portion
Any other deductions from per diem pay
How to Use This Tool
Enter your daily per diem rate, the number of days you will receive per diem, and select the relevant reimbursement category for your assignment. Adjust the taxable portion and tax rate fields to match your personal income tax situation, and add any additional deductions if applicable. Click Calculate Pay to see your net take-home pay breakdown, or Reset to clear all fields.
You can copy the full results to your clipboard using the Copy Results button to save or share your calculation.
Formula and Logic
The calculator uses the following steps to determine your net per diem pay:
- Gross Total Per Diem = Per Diem Rate × Number of Days
- Taxable Amount = Gross Total × (Taxable Portion % / 100)
- Total Taxes Owed = Taxable Amount × (Combined Tax Rate % / 100)
- Net Take-Home Pay = Gross Total - Total Taxes Owed - Additional Deductions
- Daily Net Pay = Net Take-Home Pay / Number of Days
The progress bar visualizes the proportion of your gross per diem allocated to taxes, deductions, and net pay.
Practical Notes
- Per diem rates set by the IRS for lodging and meals are non-taxable if they do not exceed the federal per diem rate for your travel location. Any amount above the IRS rate is considered taxable income.
- Self-employed individuals receiving per diem may need to report this income on Schedule C and pay self-employment taxes in addition to income tax.
- Track per diem earnings separately from regular income if you are applying for a loan, as lenders may treat short-term contract income differently.
- Some employers offer per diem as a flat daily rate regardless of actual expenses, while others require itemized receipts for reimbursement. Check your employer's policy to select the correct reimbursement category.
Why This Tool Is Useful
This calculator helps individuals manage personal budgets by accurately estimating take-home per diem pay for short-term assignments, work trips, or contract roles. Financial planners can use it to model short-term income for clients, while loan applicants can generate verifiable income estimates for per diem work. It eliminates guesswork by accounting for tax obligations and deductions that are often overlooked in manual calculations.
Frequently Asked Questions
Is per diem pay taxable?
Per diem pay is non-taxable if it does not exceed the IRS per diem rate for your travel destination and you provide required documentation. Any amount above the IRS rate, or per diem paid for days you do not travel, is subject to federal and state income tax.
How do I find the correct IRS per diem rate for my location?
The IRS publishes annual per diem rates for lodging and meals by city and state on its official website. These rates are updated yearly and vary by location, with higher rates for high-cost areas like New York City or San Francisco.
Can I use this calculator for self-employed per diem income?
Yes, but you will need to account for self-employment taxes (15.3% for Social Security and Medicare) in addition to income tax. Add the self-employment tax rate to your combined tax rate field to get a more accurate estimate of net pay.
Additional Guidance
Keep records of all per diem payments and related travel expenses for at least three years in case of an IRS audit. If your per diem income fluctuates month to month, calculate an average monthly per diem amount to include in your personal budget or loan application. For complex tax situations, consult a certified public accountant to confirm how per diem income affects your overall tax liability.