finance calculator

Mileage Reimbursement Calculator

Estimate standard mileage deduction and reimbursement value using the IRS mileage rate or your custom rate, plus parking and tolls.

Results

Standard mileage deduction
$335
Parking & tolls added
$0
Total deductible amount
$335
Estimated reimbursement
$335
Reimbursement minus deduction
$0

How to use this calculator

  1. Enter the total number of qualifying business miles you drove for the period you care about (for example, one trip, one month, or the entire year).
  2. Enter the mileage rate you want to use. By default this is set to a recent IRS standard business mileage rate; update it if the rate changes or if you are modeling another rate.
  3. Enter your employer’s reimbursement rate per mile, if they reimburse you. This may match, exceed, or fall below the IRS rate.
  4. Add any parking and tolls paid out of pocket that were directly related to the business travel.
  5. Review the standard mileage deduction, total deductible amount with parking/tolls, estimated reimbursement, and the difference between reimbursement and the deductible amount.

Inputs explained

Business miles
Total miles you drove for qualified business purposes during the period you are analyzing (not including commuting miles to and from your regular workplace). Use a mileage log or tracker to support this number.
Mileage rate ($/mile)
The per-mile rate used to compute your standard deduction. Typically this is the IRS standard business mileage rate for the tax year, but you can also enter other rates (for example, medical or charitable mileage) when modeling different scenarios.
Employer reimbursement rate ($/mile)
The per-mile rate your employer actually pays you for business driving. It can match the IRS rate, be lower, or be higher. Reimbursements up to the IRS rate are often non-taxable under accountable plan rules; consult a tax professional for details.
Parking & tolls
Total parking fees and tolls you paid out of pocket for business travel. The IRS mileage rate does not include these costs, so they are typically deductible in addition to the standard mileage allowance.

How it works

The IRS standard mileage method assigns a per-mile deduction rate for qualified business miles instead of tracking actual vehicle expenses.

We start by multiplying your business miles by the mileage rate you enter (often the IRS standard business rate for the year) to compute the standard mileage deduction.

We then add parking and tolls, which are deductible on top of the standard mileage rate when they are directly related to business driving.

The total deductible amount = (business miles × mileage rate) + parking and tolls.

Separately, we calculate your expected reimbursement by multiplying business miles by your employer’s reimbursement rate and adding any parking/tolls they reimburse.

Finally, we show the difference between reimbursement received and the standard deductible amount so you can see whether you’re over-, under-, or roughly equal to the IRS rate.

Formula

The calculator uses simple linear relationships:\n\n1. Standard mileage deduction = Business miles × Mileage rate.\n2. Total deductible amount = Standard mileage deduction + Parking & tolls.\n3. Estimated reimbursement = Business miles × Employer reimbursement rate + Parking & tolls.\n4. Difference = Estimated reimbursement − Total deductible amount.

When to use it

  • Estimating your standard mileage deduction for a tax return and comparing it with reimbursements received from an employer.
  • Checking whether your employer’s reimbursement rate roughly matches the IRS standard mileage rate or leaves a gap you might want to discuss.
  • Budgeting travel costs for upcoming business trips when you are paid a per-mile rate and need to know how much to expect.
  • Evaluating whether it may be worth tracking actual vehicle expenses (gas, maintenance, depreciation) instead of using the standard mileage rate, in consultation with a tax advisor.

Tips & cautions

  • Keep a detailed mileage log (date, purpose, start/end odometer readings) to support any deduction or reimbursement claims; this calculator is for planning, not record-keeping.
  • If the IRS mileage rate changes mid-year, split your miles into segments and run the calculator separately for each rate period, then add the results.
  • If your employer reimburses at or above the IRS standard rate under an accountable plan, you may not get an additional deduction for mileage—but the calculator can still help you sanity-check amounts.
  • Consider separate tracking for different mileage categories (business, medical, moving, charitable), as each uses different rates and rules.
  • Uses a single flat mileage rate for all business miles; it does not automatically split miles across different IRS rates or tax years.
  • Covers only the standard mileage method; it does not calculate deductions using the actual expense method (gas, repairs, depreciation, etc.).
  • Tax treatment of reimbursements can depend on whether your employer uses an accountable plan and whether reimbursements exceed IRS rates; this tool does not determine taxability.
  • Results are approximate and do not incorporate other factors on your tax return such as AGI limits, business structure, or itemized deduction interactions.

Worked examples

Example 1: Employer matches IRS rate

  • Business miles = 1,000; mileage rate = $0.67; employer reimbursement rate = $0.67; parking & tolls = $50.
  • Standard deduction = 1,000 × 0.67 = $670.
  • Total deductible amount = $670 + $50 = $720.
  • Estimated reimbursement = 1,000 × 0.67 + $50 = $720.
  • Difference = $720 − $720 = $0; your reimbursement matches the standard deductible amount in this simplified view.

Example 2: Employer reimburses below IRS rate

  • Business miles = 2,000; mileage rate = $0.67; employer reimbursement rate = $0.50; parking & tolls = $0.
  • Standard deduction = 2,000 × 0.67 = $1,340.
  • Total deductible amount = $1,340 (no extra parking/tolls).
  • Estimated reimbursement = 2,000 × 0.50 = $1,000.
  • Difference = $1,000 − $1,340 = −$340, indicating your reimbursement is $340 less than the standard deductible amount.

Example 3: Adding parking and tolls

  • Business miles = 800; mileage rate = $0.67; employer reimbursement rate = $0.60; parking & tolls = $120.
  • Standard deduction = 800 × 0.67 = $536.
  • Total deductible amount = $536 + $120 = $656.
  • Estimated reimbursement = 800 × 0.60 + $120 = $600 + $120 = $720.
  • Difference = $720 − $656 = $64; in this case your reimbursement exceeds the simplified deductible amount by about $64.

Deep dive

Use this mileage reimbursement calculator to estimate your standard mileage deduction using the IRS rate and compare it with what your employer pays per mile, including parking and tolls.

Enter business miles, mileage rate, employer reimbursement rate, and parking/tolls to see your deductible amount, estimated reimbursement, and the difference.

Ideal for employees, contractors, and small business owners who want a quick way to translate miles driven into dollars and understand whether they are being fully reimbursed.

FAQs

Where do I find the current IRS standard mileage rate?
The IRS publishes standard mileage rates each year in a notice (for example, Notice 2024-XX). You can find the current business, medical/moving, and charitable rates on the IRS website or from reputable tax resources and then enter the correct value into this calculator.
Are reimbursements at or below the IRS rate taxable?
Generally, under an accountable plan, reimbursements at or below the IRS standard mileage rate are not taxable, because they are treated as reimbursement of expenses rather than wages. However, tax treatment can vary based on your employer’s plan and your situation, so consult a tax professional or IRS guidance for specifics.
Can I deduct mileage if my employer already reimburses me?
If your employer reimburses you at or above the IRS standard mileage rate under an accountable plan, you typically will not get an additional deduction for that mileage. If they reimburse less, you may want to talk with a tax professional about whether any unreimbursed business expenses are deductible given current tax law.
Should I use the standard mileage method or actual expenses?
This calculator only models the standard mileage method. Whether that or the actual expense method is better for you depends on your vehicle costs, business usage percentage, and recordkeeping. A tax advisor or detailed tax software can help you compare both methods using your real numbers.

Related calculators

This mileage reimbursement calculator uses a simplified standard mileage model to estimate deductions and reimbursements. It does not account for all tax rules, plan types, or individual circumstances and is not tax, legal, or accounting advice. Mileage deductions and reimbursement taxability depend on current IRS regulations, employer policies, and your overall tax situation. Always consult IRS guidance or a qualified tax professional before making decisions based on these estimates.