The 401(k) Limit Rises to $25,500 for 2027, Along With Other IRS Updates
The Internal Revenue Service said on Nov. 12, 2026 that the 401(k) contribution limit for 2027 is $25,500, up from $24,500 for 2026, according to the IRS newsroom. The limit caps the elective deferrals, meaning the portion of pay an employee directs into a workplace plan in a calendar year. The $1,000 increase gives participants who contribute at the ceiling more room to defer compensation next year. It also sets the reference point for payroll departments and recordkeepers as they reprogram deferral elections for January.
The same day, the agency published its Agency Financial Report for Fiscal Year 2026. The report is the IRS's annual account of its finances and operations, and its release marks the close of the agency's reporting cycle for the year. The announcement gave no other figures, so readers who need the numbers will have to go to the document itself.
The week before, on Nov. 5, 2026, the IRS announced tax year 2027 annual inflation adjustments for almost 70 tax provisions. The adjustments are detailed in Revenue Procedure 2026-35. Inflation indexing is the mechanism that moves dollar thresholds in the tax code with a price index, so bracket edges and limits do not drift as prices rise. Payroll vendors, benefits administrators, and tax software developers typically need these figures months ahead of filing season, which is why the timing matters as much as the content. The 401(k) limit is set under a separate provision, so the two announcements are related by calendar rather than by statute.
On the same Nov. 5 date, the Treasury Department and the IRS announced Qualified Opportunity Zone designations for all 50 states, the District of Columbia, and U.S. territories. Opportunity Zones are low-income census tracts, small areas roughly the size of a neighborhood, where capital gains invested through qualified opportunity funds receive preferential tax treatment. Designations determine which tracts are eligible, so the announcement matters most to fund sponsors and investors who structure deals around those boundaries.
On Nov. 6, 2026, the IRS announced that authorized tax professionals can now make certain payments on behalf of their business clients through Tax Pro Account. The announcement did not list which payment types are covered beyond the general description, so practitioners should confirm the scope against IRS guidance before relying on the feature for client remittances.
Finally, on Nov. 10, 2026, the IRS reminded taxpayers that those who do not itemize deductions can claim a permanent deduction for charitable contributions made in 2026 under the Working Families Tax Cuts. Itemizing means listing deductions on Schedule A instead of taking the standard deduction. Non-itemizers claim the charitable deduction on the return itself, and the reminder is aimed at filers who might assume that giving only helps itemizers. Preparers will want to confirm that clients' 2026 giving records are complete before filing.
Taken together, the announcements are mostly administrative, but the 401(k) figure is the one with direct consequences for household cash flow. A saver who defers at the limit will see a larger share of pay directed into the plan from January. A plan sponsor that set a percentage-based deferral rate will need to check whether that rate now produces a different dollar amount against the new cap.
In my view, the more useful question for plan participants is not whether the limit rose but whether their current contribution rate was set against last year's figure and left untouched. Those who want the exact cap, and the rules around catch-up contributions and other contribution categories, should check the IRS release and Revenue Procedure 2026-35 directly.
