Idaho Financial Research and Money Guide
Idaho does not change its tax rules often, which is why 2026 stands out. The flat 5.3% rate held, but the withholding tables behind it were rewritten in July when the Idaho Child Tax Credit sunset. The final 2026 return instructions are still on the way. Here is the timeline, then the standing rules on wages, groceries and residency that a Boise worker lives with.
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Three Dates That Shaped Idaho Paychecks This Year
- January 1, 2025. The individual income tax rate dropped to 5.3%. That rate carried straight into 2026 and is the figure inside every current Idaho withholding table.
- July 2026. The Idaho State Tax Commission issued revised withholding tables after the Idaho Child Tax Credit expired. The withholding allowance tied to that credit is now zero, so employees who had claimed it saw slightly higher state withholding from the first payroll run on the new tables. Employers were told to use the revised tables going forward, not to recalculate earlier 2026 checks.
- Late August 2026. As of August 24, the Commission had published the revised payroll tables but not the final tax-year 2026 Form 40 and Form 43 instructions. Annual filing thresholds for full-year residents therefore still come from the prior package until the 2026 version posts.
Nothing moved on the sales tax side and the state minimum wage stayed at the federal $7.25. The rest of this article covers the rules that did not change.
Flat Does Not Mean 5.3% of Every Dollar You Earn
Idaho taxes all Idaho taxable income at one rate regardless of filing status. The catch is the word taxable. The annual return starts with federal return information, applies Idaho additions and subtractions and only then applies the rate. Payroll withholding follows the same idea through wage tables or a percentage method rather than multiplying gross pay by 5.3%.
Supplemental pay is the exception where the flat number applies directly. When a bonus, commission or severance payment is issued separately from regular wages, one permitted method is to withhold 5.3% from that payment. On a regular check, treat the state line as an estimate that the annual return settles. Withholding above final liability comes back as a refund. Withholding below it produces a balance due.
A CNC Machinist in Boise, Paid Every Two Weeks
Take a single machinist at a Boise job shop earning $23 an hour with no dependents. Eighty hours over two weeks sets the gross figure. The Idaho paycheck calculator produces the following 2026 breakdown using the revised July tables.
| Line | Amount per check |
|---|---|
| Gross pay (80 hours at $23.00) | $1,840.00 |
| Federal income tax | $136.95 |
| Idaho state income tax | $66.96 |
| Social Security (6.2%) | $114.08 |
| Medicare (1.45%) | $26.68 |
| Estimated take-home pay | $1,495.32 |
Figures come from the Online Paystub Idaho paycheck calculator for 2026. Local taxes, health premiums and retirement contributions are not included.
Notice that the Idaho line is smaller than a flat 5.3% of gross would suggest, because the tables do not start taxing at the first dollar. Social Security at 6.2% and Medicare at 1.45% are the same as anywhere else in the country.
Who Idaho Can Tax Depends on Where You Slept
Residency draws the line. You are an Idaho resident if the state is your domicile or if you keep a home in Idaho all year and spend more than 270 days here. Residents report income from all sources on Form 40, including wages earned outside the state. A resident who also pays another state's income tax on the same wages may claim a credit for it, calculated from the Idaho return instructions rather than assumed from the amount withheld.
Part-year residents and nonresidents file Form 43 once Idaho-source gross income reaches $2,500. For a nonresident employee, source follows the body: pay for work physically performed in Idaho is Idaho income, while pay for work performed elsewhere is not, even when the employer sits in Boise. Hybrid and remote workers should keep a record of where each workday happened.
Groceries Are Taxed at the Register, Prescriptions Are Not
Idaho charges a 6% state sales tax, matched by a 6% use tax on purchases brought in from outside without tax paid. Unlike most states, Idaho taxes grocery food at the full rate. Purchases made with SNAP, EBT or WIC benefits are the exception. Prescription drugs, insulin, hearing aids, prosthetics and certain durable medical equipment listed in Idaho Code 63-3622N are exempt.
There is no county sales tax. The only local layer comes from resort cities with voter-approved local option taxes, which push combined rates to as much as 9%. Some resort cities tax everything the state taxes while others limit their tax to lodging, restaurant meals and alcohol by the drink, so the ordinance for the specific town controls.
Sellers register through Taxpayer Access Point, known as TAP. Most file monthly returns due on the 20th of the following month, while smaller accounts are assigned quarterly, semiannual or annual filing. Out-of-state retailers must collect once Idaho sales pass $100,000 in a 12-month period. A resident sole proprietor with no more than $5,000 of gross sales in a calendar year can qualify for a narrow small seller exemption.
Retirement Money, Capital Gains and Voluntary Estimates
Idaho does not tax Social Security benefits, even the portion that is federally taxable. Railroad Retirement benefits are exempt too. Pensions are generally taxable, with a limited retirement benefits deduction for qualifying pensions, including military retirement when the eligibility conditions are met.
Sellers of certain Idaho property can deduct 60% of qualifying capital gain net income using Form CG. Real property, business equipment, livestock and timber can qualify when the holding-period rules are satisfied. An ordinary stock sale does not.
The state does not require estimated payments from individuals, but a self-employed worker can send voluntary payments on Form 51 or through Idaho Quick Pay to avoid a large April bill. A contractor paid without withholding often keeps a self-prepared pay statement for independent contractors so year-end totals line up with those voluntary payments.
The Wage Floor and the Statement Idaho Employers Owe
Idaho's minimum wage is the federal $7.25 an hour, with a $3.35 cash wage for tipped employees where the tip credit rules apply. Overtime for covered nonexempt workers starts after 40 hours in a workweek at one and a half times the regular rate. There is no daily threshold.
State law requires a statement of deductions for each pay period in which deductions are made. Most employers go further and list pay dates, hours, gross wages and year-to-date totals. Unemployment insurance is employer-funded in Idaho and should never appear as an employee deduction. When those figures are verified, the Idaho pay stub generator turns them into an itemized statement.
Frequently Asked Questions
What is the Idaho income tax rate for 2026?
5.3% on all Idaho taxable income. The rate took effect January 1, 2025 and the revised July 2026 withholding tables still use it.
Why did my Idaho withholding go up in the middle of 2026?
The Idaho Child Tax Credit expired and the State Tax Commission issued new withholding tables in July 2026. The allowance tied to that credit is now zero.
Are groceries taxed in Idaho?
Yes, at the 6% state rate. Purchases made with SNAP, EBT or WIC benefits are exempt, as are qualifying prescription drugs.
Does Idaho tax Social Security?
No. Idaho exempts Social Security benefits even when part of them is taxable on the federal return.
Which Idaho cities add local sales tax?
Only certain resort cities with voter-approved local option taxes. Combined rates there can reach 9%.