Transparent method
The formula
Worked example
Example inputs
How to interpret the result
A refund is money that was already the filer's own, withheld throughout the year and returned once the actual liability comes in lower than what was collected: it isn't a bonus from the government, and a bigger refund isn't automatically a financial win. A large refund often just means more was withheld all year than necessary, an interest-free loan to the government rather than a windfall.
Before you rely on it
What to check
Compare your total withholding against your actual full-year liability, not just the size of the refund figure itself, to judge whether your withholding is well calibrated.
The common error
Where people go wrong with tax refund or amount due calculator
Treating a large refund as extra income to celebrate. It's a return of the filer's own overpayment, and consistently large refunds usually mean withholding could be adjusted to put that money in each paycheck instead.
Sensitivity evidence
How federal tax withheld year to date changes the projected refund or amount due
| Federal tax withheld year to date | Projected refund or amount due | Projected full-year withholding | Withholding coverage of projected tax |
|---|---|---|---|
| $9,600 | -$1,400 | $16,600 | 92.2% |
| $10,800 | -$200 | $17,800 | 98.9% |
| $12,000worked example | $1,000 | $19,000 | 105.6% |
| $13,200 | $2,200 | $20,200 | 112.2% |
| $14,400 | $3,400 | $21,400 | 118.9% |
Every input, tested
Which input moves the projected refund or amount due most
| Input | Tested from | To | Projected refund or amount due at each end | Swing |
|---|---|---|---|---|
| Projected annual federal tax | $16,200 | $19,800 | $2,800 to -$800 | $3,600 (360%) |
| Federal tax withheld year to date | $10,800 | $13,200 | -$200 to $2,200 | $2,400 (240%) |
| Federal withholding per remaining paycheck | $630 | $770 | $300 to $1,700 | $1,400 (140%) |
| Remaining paychecks | 9 | 11 | $300 to $1,700 | $1,400 (140%) |
Two variables at once
Projected refund or amount due by federal tax withheld year to date and federal withholding per remaining paycheck
| Federal tax withheld year to date \ Federal withholding per remaining paycheck | $560 | $700 | $840 |
|---|---|---|---|
| $9,600 | -$2,800 | -$1,400 | $0.00 |
| $10,800 | -$1,600 | -$200 | $1,200 |
| $12,000 | -$400 | $1,000 | $2,400 |
| $13,200 | $800 | $2,200 | $3,600 |
| $14,400 | $2,000 | $3,400 | $4,800 |
Step by step
The worked example, input by input
| Input | Value used |
|---|---|
| Federal tax withheld year to date | $12,000 |
| Federal withholding per remaining paycheck | $700 |
| Remaining paychecks | 10 |
| Projected annual federal tax | $18,000 |
| Projected refund or amount due | $1,000 |
| Projected full-year withholding | $19,000 |
| Withholding coverage of projected tax | 105.6% |
Where the inputs come from
Federal tax withheld year to date is the total on your latest pay stub, withholding per remaining paycheck is the current per-period amount, and remaining paychecks is how many are left. Projected annual federal tax comes from your best estimate of the year's tax bill, including credits you expect. Use the same tax year for all four, and add estimated payments you have made if you are self-employed. Compare with last year's return as a check.
Using the projected refund or amount due in a real decision
Use it a few months before the year ends: if you will owe, you can still adjust withholding or make an estimated payment, and if you will get a large refund, you can raise take-home pay by reducing withholding.
When the result stops applying
Tax credits, such as the child tax credit and earned income credit, change the projected tax and are easy to overlook. Changes in income late in the year, such as a bonus or a sale of investments, can change the result. The tool covers federal tax only. A refund is not income or a bonus, but the return of your own money.
What to compare it with
Compute the projected tax with the federal income tax calculator, and adjust your paycheck on the paycheck calculator. The tax withholding page uses the same projection framed as a coverage check. The bonus tax and capital gains pages help with irregular income. File early if you expect a refund, since it arrives sooner.
People also ask
Frequently asked questions
When should I check my expected refund?
In the fall, when there is still time to change withholding or make an estimated payment, and again after any big change such as a new job or a sale.
Can I get a bigger refund by having more withheld?
Yes, but it just returns your own money later. More withholding means less take-home pay during the year.
What if I owe tax at filing?
Pay by the deadline to avoid penalties and interest, and adjust your W-4 for next year so the amount withheld matches your tax.