Big Refund?
Your Paychecks Were Too Small.

In a survey of 2,000 adults this spring, 59% of people who received a tax refund said they used it to pay monthly bills. Only 18% spent any of it on something nonessential. A refund is usually described as a windfall, but for most households it works more like back pay: their own money, arriving a year after they earned it.

To see why, it helps to look at where a refund comes from in the first place.

Where a Refund Comes From

Every payday, your employer holds back an estimate of the federal income tax you will owe for the year. That estimate is based on the W-4 form you filled out, often on your first day at the job and rarely since. When the estimate runs high, the extra sits with the IRS until you file your return, and then it comes back as a refund. Money withheld from a January 2026 paycheck will not return until around March 2027, which is up to 15 months later.

This year the amounts were larger than usual. The average refund in the 2026 filing season was about $3,275, up 11% from the year before. In a typical year, roughly six in ten returns end in a refund. Spread across a year, $3,275 is $273 a month, or $126 in every biweekly paycheck.

Refunds rose for a specific reason. A new tax law cut taxes for 2025, but it passed in the middle of the year, and the IRS left that year's withholding tables unchanged. Employers kept withholding at the old, higher rates for all twelve months, and the difference came back in the spring. It was the same delay this post describes, applied to the whole country at once.

What That Does to an Ordinary Month

Consider a household that received a $2,400 refund, all of it from withholding that ran high. That works out to $92 in each biweekly paycheck, or $200 a month, and it was missing every time money was tight: in the month the car insurance came due, and in the week before payday when the checking balance ran thin. When the refund finally arrived in the spring, most of it went to catching up on what those months had cost.

Nothing about the household's income changed over the year. What changed was when the money showed up, and timing is where most tight months come from.

Why Withholding Drifts

Nobody decides to overpay. What usually happens is that life changes and the W-4 does not. A marriage, a new child or a second job that ended can each leave the old form withholding too much. Sometimes the cause is an old instruction, such as extra withholding added years ago to cover a one-time tax bill and never removed.

And sometimes the law itself changes. New deductions took effect in 2025, including the ones for overtime and tips, but an employer does not apply them to your paycheck until you ask. If you earn overtime or tips, those deserve a check of their own.

What You Can Move, and What You Can't

Before doing the math on your own refund, one limit is worth knowing. Part of some refunds comes from credits that the IRS pays only when you file, such as the Earned Income Tax Credit, and a W-4 cannot move those into a paycheck. So the right starting point is your own return, not the national average. The portion of your refund that came from withholding is the portion you can bring forward.

How to Adjust It

The IRS offers a free Tax Withholding Estimator on its website. With a recent pay stub and last year's return in hand, it takes about 25 minutes, and it produces a completed W-4 for you to give your employer. Your employer then has to apply the new form by the first pay period that ends 30 days after receiving it.

It is wise to aim for a small refund and not for zero. A cushion of a few hundred dollars protects you if the estimate turns out a little off, and the IRS charges no underpayment penalty when you owe less than $1,000 at filing.

Because only a few paychecks remain in 2026, most of the benefit will show up in 2027. For that reason, run the estimator again in January, when it can work from a full year.

"But the Refund Is How I Save"

Many people like the refund precisely because it is money they cannot spend, and that instinct is sound. The trouble is that they cannot reach it either. If the car needs a $900 repair in August, the money is with the IRS until spring, so the repair goes on a credit card. In the meantime, the IRS pays you zero interest on the money it is holding for you.

There is a way to keep the discipline without those costs. After adjusting the W-4, ask your payroll office to send part of the difference straight to a savings account, since many employers can split a direct deposit between two accounts. That portion still never passes through your checking account, but it is yours on the day it is paid, it earns interest, and it is there when the car breaks down. For many households it is also the start of a savings habit that did not exist before, one that builds with every paycheck.

Decide the Split Before the First Paycheck

How much goes to savings and how much stays in checking is your choice, and it is easier to make when you can see what each dollar does. The household in the example above has $92 more in each biweekly paycheck. It might send $25 of that to savings, which adds up to $650 over a year, and keep the other $67 in checking, where it can cover the days that used to run short.

In aiSmartBudget, you can add the portion that stays in checking as a scenario and switch it on in your Register, which shows your balance day by day with the new pay and without it. If the days before payday now stay above zero, the split is working. If they do not, you can change the amounts before the first new paycheck arrives.

This post explains how withholding works and is not tax advice. Your own numbers depend on your return, and the IRS estimator or a tax professional can confirm them. Sources: IRS 2026 filing season statistics; TaxSlayer and Talker Research survey of 2,000 U.S. adults, 2026.