Federal taxes are collected through several channels working in parallel: employers withhold income and payroll taxes from each paycheck, self-employed people send quarterly estimated payments directly to the IRS, everyone reconciles the year on an annual return, and indirect taxes like federal excise on fuel and tobacco get built into prices before you ever see them. If a balance goes unpaid after that, the IRS has authority to file liens and seize wages, bank accounts, and other property. That is how taxes are collected in practice, and the rest of this article walks through each channel and what happens when someone falls behind.
Withholding From Your Paycheck
For most workers, taxes are collected before the money reaches your bank account. Federal law requires every employer to deduct income tax from each paycheck based on the Form W-4 you filled out, which captures your filing status and adjustments for dependents or other income.1Office of the Law Revision Counsel. 26 USC 3402 – Income Tax Collected at Source Fill the W-4 out too aggressively and you get a surprise bill in April. Fill it out too conservatively and you have given the government an interest-free loan all year.
Payroll taxes come out on top of income tax. The employee share is 6.2 percent of wages for Social Security and 1.45 percent for Medicare, and your employer matches both amounts.2Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax These deductions happen every pay period, so revenue reaches the Treasury as a steady stream rather than a single year-end payment.
A W-4 is not a one-time document. Marriage, divorce, a new child, buying a home, or picking up a side job can all shift what you actually owe. The IRS recommends running its Tax Withholding Estimator after a major life event and giving your employer an updated W-4.3Internal Revenue Service. Managing Your Taxes After a Life Event There is no penalty for updating mid-year.
Quarterly Estimated Payments if You’re Self-Employed
Freelancers, independent contractors, landlords, and small-business owners don’t have an employer withholding for them, so they send payments directly to the IRS four times a year. The due dates are April 15, June 15, September 15, and January 15 of the following year.4Office of the Law Revision Counsel. 26 USC 6654 – Failure by Individual to Pay Estimated Income Tax The gap between the first and second payments is only two months, so it helps to mark all four on the calendar at the start of the year.
You project your total annual income, calculate the tax, and divide by four. Form 1040-ES walks through the math, and you can pay electronically through IRS Direct Pay or the Electronic Federal Tax Payment System.5Internal Revenue Service. About Form 1040-ES, Estimated Tax for Individuals
Because income a year out is hard to predict, the IRS offers safe harbors. You avoid an underpayment penalty if your total payments equal at least 90 percent of the current year’s tax or 100 percent of last year’s tax, whichever is smaller. If your prior-year adjusted gross income was above $150,000 (or $75,000 if married filing separately), the prior-year threshold rises to 110 percent.6Internal Revenue Service. 2026 Form 1040-ES Estimated Tax for Individuals
Miss a quarter or underpay and the IRS charges interest on the shortfall from the day it was due until you pay. For early 2026 that rate is 7 percent per year, compounded daily, dropping to 6 percent beginning April 1, 2026.7Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 The penalty is figured separately for each missed installment, so catching up later does not erase the earlier charge.
The Annual Return Reconciles Everything
Filing Form 1040 is where the year’s numbers settle. You add up the taxes already paid through withholding and estimated payments, subtract credits and deductions, and compare that to what you actually owe. Overpay and you get a refund; underpay and the balance is due by the April 15 filing deadline.8Internal Revenue Service. IRS Opens Filing Season Payment can go through IRS Direct Pay, a mailed check, or a credit or debit card.
Filing Form 4868 gives you an automatic six-month extension to file. It is not an extension to pay. Interest still runs on any unpaid balance from the original April deadline, even if the return itself isn’t due until October.9Internal Revenue Service. Topic No. 304, Extensions of Time to File Your Tax Return If you expect to owe, send an estimated payment along with the extension request.
Indirect Taxes You Pay Without Writing a Check
Not every tax shows up on a pay stub or a voucher. Federal excise taxes are added at the point of production or import, long before goods reach a store. Gasoline carries a federal excise tax of 18.3 cents per gallon and diesel 24.3 cents per gallon.10Office of the Law Revision Counsel. 26 USC 4081 – Imposition of Tax The federal cigarette tax runs about $1.01 per pack. You never write a check for these; the manufacturer or distributor collects and forwards them to the Treasury.
Sales tax and property tax are collected differently, and neither is federal. States and many localities impose sales tax that merchants add at the register and remit to the state. Property taxes are assessed and collected by local governments based on the value of real estate you own. Homeowners with a mortgage often never handle the payment themselves; the lender collects a monthly amount into escrow and pays the local authority.
What Happens if You Don’t Pay
The IRS treats failing to file and failing to pay as separate problems, and the filing penalty is far steeper. If you owe and don’t file on time, the penalty is 5 percent of the unpaid tax per month or partial month, capped at 25 percent. If the return is more than 60 days late, the minimum penalty for 2026 is the lesser of $525 or the full amount owed.11Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges File on time even if you can’t pay, and you avoid the harsher of the two penalties.
The failure-to-pay penalty is 0.5 percent of the unpaid balance per month, also capped at 25 percent. Set up an approved installment agreement and it drops to 0.25 percent. Ignore a final notice of intent to levy for more than 10 days and it jumps to 1 percent.12Internal Revenue Service. Failure to Pay Penalty Interest runs on top of the penalties, compounding daily.
Liens
After you fail to pay following a formal demand, the IRS can file a federal tax lien, a legal claim against everything you own, including real estate, vehicles, financial accounts, and property you acquire while the lien is in place.13Office of the Law Revision Counsel. 26 USC 6321 – Lien for Taxes A lien does not take property, but it puts the government ahead of most other creditors and can make it hard to sell property, refinance, or get new credit.
Levies and Seizures
A levy is the actual taking. If you don’t pay within 10 days after the IRS issues a notice and demand, it has authority to levy wages, bank accounts, and other assets.14Office of the Law Revision Counsel. 26 USC 6331 – Levy and Distraint A wage levy tells your employer to send part of each paycheck to the IRS until the debt is satisfied. A bank levy requires the bank to freeze the funds for 21 days before turning them over, giving you a narrow window to resolve the situation.15Office of the Law Revision Counsel. 26 USC 6332 – Surrender of Property Subject to Levy The IRS can also seize and sell physical property, including vehicles, equipment, and real estate. Seizing a primary residence requires additional approval from a federal judge.
Property Protected From Levy
Federal law shields certain items. For 2026 the IRS cannot levy household goods, furniture, and personal effects worth up to $11,980, or books and tools of your trade worth up to $5,990.16Internal Revenue Service. Revenue Procedure 2025-32 – Inflation Adjusted Items for 2026 Unemployment benefits, workers’ compensation, certain disability payments, court-ordered child support, and necessary clothing and school books are fully exempt.17Office of the Law Revision Counsel. 26 USC 6334 – Property Exempt from Levy A portion of your wages is always protected, calculated from your filing status and number of dependents.
If You Can’t Pay in Full
Owing more than you can afford right now doesn’t force you into liens and levies. Enrolling in one of the IRS’s formal programs generally stops or prevents involuntary collection.
The most common option is an installment agreement, a monthly payment plan. Short-term plans of 180 days or less have no setup fee. Long-term plans carry a one-time fee that varies by application method: $22 online with automatic bank withdrawals, $107 by phone or mail with automatic withdrawals, $69 online without them, and $178 by phone or mail without them. Low-income taxpayers may qualify for waived or reduced fees.18Internal Revenue Service. Payment Plans; Installment Agreements Interest and the reduced 0.25 percent failure-to-pay penalty keep accruing while the plan is active.12Internal Revenue Service. Failure to Pay Penalty
An Offer in Compromise lets you propose settling for less than the full balance. The IRS looks at your income, expenses, and asset equity to judge whether the offer is the most it can reasonably collect. Applying costs a $205 nonrefundable fee plus an initial payment, both waived for low-income applicants.19Internal Revenue Service. Offer in Compromise Most offers are rejected, so this route works best with a genuinely documented inability to pay.
Currently Not Collectible status is for people who cannot pay anything without falling short on basic living expenses. It pauses active collection, though interest, penalties, and any lien remain. Qualifying usually means submitting a detailed financial statement showing that necessary expenses consume your income.20Internal Revenue Service. Currently Not Collectible Procedures The IRS reviews these accounts periodically and can resume collection if your situation improves.
Your Right to a Hearing Before a Levy
Before the IRS can levy your property, it must send a final notice of intent to levy that includes your right to request a Collection Due Process hearing. You have 30 days from the date of that notice to file Form 12153.21Internal Revenue Service. Collection Due Process (CDP) FAQs Filing on time pauses the levy while the IRS Office of Appeals reviews your case and preserves your right to challenge the outcome in Tax Court.
At the hearing you can raise alternatives like an installment agreement or Offer in Compromise, dispute the underlying tax if you have not had a prior opportunity to do so, or argue that the proposed action is more aggressive than necessary. Missing the 30-day window doesn’t end your options; you can still request an equivalent hearing. You just lose the path to Tax Court, and with it much of your leverage. The most expensive mistake at every stage is ignoring IRS notices, because silence is what moves a case from letters to levies.