Personal allowances were numbers you claimed on the old W-4 form to tell your employer how much federal income tax to withhold from your paycheck. Each allowance reduced the amount of your income subject to withholding, so claiming more allowances meant less tax taken out per paycheck. The IRS eliminated personal allowances from the W-4 starting in 2020, so if you’re filling out a new W-4 today, you won’t see them on the form at all.
How Allowances Used to Work
Before 2020, every allowance on your W-4 represented a fixed dollar amount tied to the personal exemption in the tax code. For example, if the personal exemption was $4,050, each allowance you claimed told your employer to shield roughly that much of your annual income from withholding calculations. A single person with no dependents typically claimed one allowance for themselves. A married couple with two kids might claim four or more.
The system was simple in theory but confusing in practice. Many people claimed too few allowances and overpaid throughout the year (resulting in a large refund), while others claimed too many and ended up owing at tax time. The allowance number was also hard to translate into actual dollars, which made it difficult to fine-tune your withholding.
Why the IRS Removed Allowances
The Tax Cuts and Jobs Act, passed in late 2017, suspended personal and dependency exemptions from the tax code starting in 2018. Since the value of each withholding allowance was tied directly to the personal exemption amount, the IRS redesigned the W-4 for 2020 to reflect the new law. As the IRS put it: “Due to changes in law, currently you cannot claim personal exemptions or dependency exemptions.”
Rather than patch the old system, the IRS rebuilt the form around dollar amounts instead of abstract allowance numbers. The goal was to make withholding more transparent and accurate.
What Replaced Allowances on the Current W-4
The current W-4 uses a five-step process that works in plain dollars rather than allowance counts:
- Step 1: You enter your personal information and filing status (single, married filing jointly, or head of household). Your filing status alone drives the baseline withholding amount.
- Step 2: If you hold multiple jobs or your spouse also works, you indicate that here. The form offers a checkbox, a worksheet, or a link to the IRS online estimator to handle this.
- Step 3: You enter a dollar amount for dependents. For qualifying children under 17, you multiply by $2,000 per child. For other dependents, you multiply by $500 each. This directly reduces the tax withheld from each paycheck.
- Step 4: You can enter other income (interest, dividends, retirement), claim additional deductions beyond the standard deduction, or request a specific extra dollar amount withheld per pay period.
- Step 5: You sign and date the form.
Only Steps 1 and 5 are required. If your situation is straightforward (one job, no dependents, standard deduction), you can skip Steps 2 through 4 and the default withholding will be close to accurate.
If Your Employer’s System Still Asks for Allowances
Some older payroll systems or employer portals haven’t fully updated their interfaces and may still display a field for “allowances” or “exemptions.” If you run into this, ask your HR or payroll department whether their system has been updated to accept the current W-4 format. In most cases, you can submit a paper copy of the current W-4 directly if the online portal doesn’t match. You are not required to fill out a new W-4 if you haven’t changed jobs, but if your withholding feels off, submitting a current form is the easiest fix.
If you filled out a W-4 before 2020 and haven’t submitted a new one since, your employer is still using your old allowance-based withholding. That’s perfectly legal, but it may not reflect changes in your life like getting married, having children, or picking up a side job.
How to Check if Your Withholding Is Right
The IRS offers a free online Tax Withholding Estimator that replaces the guesswork allowances used to create. To use it, you’ll need your most recent pay stubs showing year-to-date earnings and withholding, plus your spouse’s pay stubs if you plan to file jointly. If you have self-employment income, investment income, or plan to itemize deductions, gather those records too along with your most recent federal tax return.
The estimator walks you through your full tax picture and tells you exactly how to fill out a new W-4 so your withholding matches what you’ll actually owe. It’s worth running through at least once a year, or whenever your income or family situation changes. The result is a specific dollar recommendation rather than a vague allowance number, which makes it much easier to land close to a zero balance at tax time instead of overpaying or underpaying throughout the year.