New Numbers Dropped: 2026 vs. 2027 Tax Figures (and Why They Affect Your 2028 Filing)

By Ahmed Raza, Tax Preparer

On Nov 5 2026, IRS released its annual inflation adjustments for tax year 2027. Will it affect 2026 tax returns? No, these numbers are for the tax year 2027 and won’t effect 2026 returns.

Key takeaways

1. No change for 2026 returns. Use the 2026 figures for returns filed in 2027.
2. 2027 returns will be filed in early 2028. Tax year 2027 begins on January 1, 2027.
3. The standard deduction goes up. It is $16,600 for single filers, $33,200 for married filing jointly, and $24,925 for head of household.
4. The child tax credit rises. The maximum goes from $2,200 to $2,300 per child, and the refundable portion goes from $1,700 to $1,800.
5. Tax brackets shift up slightly. The top rate stays at 37%.
6. Some items are not indexed. Personal exemptions remain at zero, and the Lifetime Learning Credit phase-out has not been adjusted since 2020.
7. Use the official source. Check the IRS announcement and Revenue Procedure 2026-35 for the full list of about 70 adjustments.

Why these numbers are released in 2026?

The IRS publishes the next year’s figures in the fall so that employers, payroll providers, benefit administrators, and taxpayers can plan ahead.

Also worth knowing: some items are not indexed at all. Personal exemptions stay at zero for 2027, and the Lifetime Learning Credit phase-out (MAGI of $80,000 to $90,000, or $160,000 to $180,000 for joint filers) has not been adjusted for inflation since 2020.

This early release will help them and give them enough time to evaluate and implement tax percentages and instructions in their system.

When will 2027 tax year start?

The Tax year 2027 will start on January 1, 2027 and the returns of the said year will be filed in 1st quarter of 2028, similar to the following year 2026 returns.

What is the difference between 2027 and 2026 tax year?

There are multiple changes addressed by IRS on the website. You can see that on IRS new release for 2027.

The major and most important changes that everyone shall acknowledge is standard deductions, tax brackets, child tax credit (CTC), refundable portion and many other important and major heads.

The above table shows the exact changes and differences between 2026 and 2027 returns.

What shall tax preparer do for 2026 returns?

Tax preparer shall follow the 2026 brackets and thresholds and announced deductions for 2026 returns that are going to be filed in first quarter of 2027.

What is the update on Tax Brackets?

The tax brackets have also hiked a little. The table below shows the tax brackets as per the filing status

Conclusion

The IRS’s 2027 inflation adjustments are a planning tool, not a change to the returns being prepared right now. Tax year 2026 returns, filed in early 2027, still use the 2026 standard deductions, brackets, and credits. The 2027 figures apply to returns filed in early 2028.

The IRS releases them this early so employers, payroll providers, and benefit administrators can update their systems before the year begins. For taxpayers and tax preparers, it is also a chance to plan ahead.