Single std. deduction
−$4,100
$16,100 → $12,000 · higher in 2026
20262018
2026 vs 2018 Federal Tax Brackets
2026 used the current (obbba-era) schedule; 2018 uses the tcja schedule. Single standard deduction $16,100 vs $12,000; top rate 37% vs 37%.
By Sammy S. · Founder · AuthorUpdated for 2026
MFJ std. deduction
−$8,200
$32,200 → $24,000
Top marginal rate
Unchanged
37% → 37%
Side-by-side scoreboard
2026
$16,100
single standard deduction
- MFJ std. ded.
- $32,200
- Top rate
- 37%
- SS wage base
- $184,500
Current (OBBBA-era) schedule
2018
$12,000
single standard deduction
- MFJ std. ded.
- $24,000
- Top rate
- 37%
- SS wage base
- $128,400
TCJA schedule
Single filer brackets
Inclusive taxable-income ceilings for each statutory rate. Open each year profile for MFJ and head-of-household tables.
2026 single
$0–$12,40010%
$12,400–$50,40012%
$50,400–$105,70022%
$105,700–$201,77524%
$201,775–$256,22532%
$256,225–$640,60035%
Over $640,60037%
2018 single
$0–$9,52510%
$9,525–$38,70012%
$38,700–$82,50022%
$82,500–$157,50024%
$157,500–$200,00032%
$200,000–$500,00035%
Over $500,00037%
Tax on taxable income (single)
Ordinary tax only—no credits, AMT, or NIIT. Amounts are taxable income after deductions, not gross wages.
| Taxable income | 2026 | 2018 | Difference |
|---|---|---|---|
| $50,000 | $5,752 | $6,940 | $1,188 |
| $100,000 | $16,712 | $18,290 | $1,578 |
| $250,000 | $56,456 | $63,190 | $6,734 |
$50,000 taxable
2026$5,752
2018$6,940
Difference: $1,188
$100,000 taxable
2026$16,712
2018$18,290
Difference: $1,578
$250,000 taxable
2026$56,456
2018$63,190
Difference: $6,734
Education
How to read the 2026 vs 2018 differences
Standard deduction deltas
A higher standard deduction lowers taxable income before brackets apply. The single deduction moved $4,100 (down from 2026 to 2018); MFJ moved $8,200. Large jumps usually mean a law change (TCJA) or a high-inflation COLA year.
Rate schedule vs indexing
2026 used the current (obbba-era) schedule; 2018 uses the tcja schedule. Expect different rate labels (for example 15%/25%/39.6% vs 12%/22%/37%) as well as different deduction rules.
Taxable-income examples
The sample tax table holds taxable income fixed so you can isolate bracket/threshold changes. Real paychecks also change with deductions, FICA wage bases, and credits—so treat the dollar differences as directional, not a full return comparison.
What this page is for
Use it to research historical law, explain a COLA, or brief a before/after TCJA story. For tax years 2020–2026, open the matching US paycheck calculator (for example /calculator/us/2020 or current /calculator/us) to run a full estimate with that year’s brackets.
Compare other years
Compare any two tax years
Standard deductions, top rates, and bracket thresholds side by side.
Related tools
US paycheck calculatorCurrent federal and state rulesTax bracket calculatorMarginal vs effective brackets401(k) & IRA limits by yearHistorical contribution ceilingsCapital gains tax by stateState gain treatmentState tax compareSide-by-side take-homeSalary comparison by stateTake-home ladders by state
Current-year paycheck estimate
Historical brackets are for reference. The US calculator models today’s federal rules.
Open US calculatorFAQs
For single filers, the standard deduction went from $16,100 in 2026 to $12,000 in 2018 ($-4,100 change). For married filing jointly, it went from $32,200 to $24,000. Head of household moved from $24,150 to $18,000.
2026 topped out at 37%; 2018 tops out at 37%. These are statutory marginal rates on taxable income in the highest bracket—not effective rates on total income.
2026 used the current (obbba-era) schedule; 2018 uses the tcja schedule. Rate percentages and deduction rules can differ substantially across regimes (for example, TCJA replaced 15/25/28/33/39.6% bands with 12/22/24/32/37%).
Neither year had a personal exemption—the TCJA suspension was in effect for both.
Using only the statutory brackets (no credits): about $5,752 in 2026 vs $6,940 in 2018. That illustration is taxable income after deductions—not gross wages.
Ordinary tax would be about $16,712 in 2026 vs $18,290 in 2018 under the published brackets alone.
The OASDI taxable wage base was $184,500 in 2026 and $128,400 in 2018 ($-56,100 change). FICA rates are separate from income-tax brackets.
2026 was higher ($16,100 vs $12,000).
No. These pages compare federal ordinary income-tax brackets and standard deductions only. State rates, local taxes, FICA, AMT, NIIT, and credits are outside this comparison.
Partially. 2026 (/calculator/us) has a matching US paycheck calculator. 2018 is before 2020, so it is published here as an IRS/CRS reference table only. Live engines cover 2020–2026.