Worked example
Tax Refund Example: When Withholding Does Not Quite Cover the Bill
Eli, a fictional single employee, expects $92,000 of wages and is checking whether 2026 federal payments cover the modeled tax. A midyear pay change made last year’s withholding assumption unreliable. This is an illustrative 2026 scenario, not personal tax advice.
7 minute read · 2026 U.S. federal tax
Follow the numbers
Add withholding and payments
- 1Estimate total tax
- 2Add withholding and payments
- 3Reconcile refund or amount owed
The planning question behind the numbers
Eli, a fictional single employee, expects $92,000 of wages and is checking whether 2026 federal payments cover the modeled tax.
A midyear pay change made last year’s withholding assumption unreliable. The filing-status context is Single, and every tax value uses the 2026 production calculation.
Scenario profile
A midyear pay change made last year’s withholding assumption unreliable.
Eli, a fictional single employee, expects $92,000 of wages and is checking whether 2026 federal payments cover the modeled tax.
Single
Prepared inputs, grouped by role
Liability inputs
- $92,000 wages
- $2,000 pre-tax adjustments
- $500 nonrefundable credits
- $700 other federal taxes
Payment inputs
- $11,000 withholding
- $500 estimated payments
- no refundable credits or extension payment
Inputs the fictional taxpayer has prepared
The scenario uses the same inputs accepted by the calculator. No deduction, credit, basis amount, or eligibility conclusion is created inside the example.
- $92,000 wages
- $2,000 pre-tax adjustments
- $500 nonrefundable credits
- $700 other federal taxes
- $11,000 withholding
- $500 estimated payments
- no refundable credits or extension payment
Follow the calculation from input to result
TaxArith passes the fixture through calculateTaxRefund. The values below use the site’s production formatting.
Production calculation journey
Values are generated by calculateTaxRefund.
calculateTaxRefund
- 1. Estimated federal income tax$10,536.00
- 2. Estimated total tax$11,236.00
- 3. Payments and refundable credits$11,500.00
- 4. Estimated amount owed$0.00
The result is the gap between modeled total tax and entered payments. It is not a separate tax and does not include penalties or interest.
Change one input and watch the consequence
If federal withholding totals $13,000 instead of $11,000:
Base case versus one changed input
If federal withholding totals $13,000 instead of $11,000
Base case
Estimated amount owed
$0.00One-input change
Alternative estimated refund
$2,264.00If federal withholding totals $13,000 instead of $11,000
Changing withholding changes the reconciliation, not the underlying income-tax calculation.
Before you use the estimate
- Recreate the example only with records that support your own inputs.
- Keep the same filing status and tax year when comparing the published numbers.
- Change one material input at a time and read the full breakdown.
- Review the stated limitations before using the estimate.
Where this estimate stops
- The example assumes the entered credit and other federal tax are already determined and does not predict an issued refund or account for offsets.
- The fictional facts illustrate production logic and do not establish eligibility, filing treatment, or a recommended action for any reader.
Sources and references
Only the primary federal sources used for the rules discussed in this guide are listed here.
- Revenue Procedure 2025-32
Internal Revenue Service · The inflation-adjusted 2026 ordinary brackets, standard deductions, preferential-rate thresholds, and other indexed amounts used by the applicable calculation.
- Publication 505, Tax Withholding and Estimated Tax
Internal Revenue Service · Federal withholding and estimated-payment concepts used in the reconciliation review.
TaxArith provides illustrative 2026 U.S. federal tax estimates for general information. It is not tax, legal, financial, or investment advice and does not prepare or file a return. Results depend on the accuracy and completeness of the submitted facts.