09/29/2026
Retirement runs on a handful of birthdays. Between 50 and 75, specific ages add savings room, remove a tax penalty, open benefits and eventually force withdrawals, and several of the numbers moved for 2026.
At 50, catch-up contributions begin: an extra $8,000 into a 401(k) and $1,100 into an IRA in 2026, per IRS Notice 2025-67. From 60 through 63, the workplace catch-up rises to $11,250. One change starts this year: anyone whose 2025 wages from that employer topped $150,000 has to make those catch-ups as Roth contributions.
At 59½, the 10% early-withdrawal penalty ends. Income tax on pretax money does not. Someone who leaves a job in or after the year they turn 55, by choice or not, can tap that employer's 401(k) without the penalty, but IRAs and plans from earlier jobs still wait for 59½.
Social Security can start at 62, at a permanent cut of up to 30% for anyone whose full retirement age is 67, which applies to anyone born in 1960 or later. Waiting past 67 adds 8% a year, and the growth stops at 70. Claiming at 70 instead of 67 pays 24% more for life.
Medicare opens at 65 with a seven-month sign-up window around the birthday month. The standard Part B premium is $202.90 a month in 2026. Miss the window without other qualifying coverage and Part B costs 10% more for each full year of delay, for as long as you have it.
At 70½, IRA owners can send up to $111,000 a year straight to charity as a qualified charitable distribution, and that money is left out of taxable income. That age did not move when the withdrawal age did, so there is now a stretch of up to four and a half years when giving from an IRA is allowed but nothing is forced out yet.
Required minimum distributions start at 73 for anyone born from 1951 through 1958 and at 75 for anyone born in 1960 or later. For those born in 1959, the answer is still unsettled: the law describes both ages, and a proposed IRS rule would set it at 73.
The case for claiming Social Security early is stronger than the percentages suggest. The extra 24% from waiting only pays off with a long enough life, and someone in poor health, or who needs the income to avoid selling investments at a bad time, can reasonably take less, sooner.
The ages that open doors can wait. The ones with deadlines attached, Medicare and required withdrawals, are the ones that cost money when they slip by.
Source: IRS Notice 2025-67 (2026 limits); SSA on early and delayed retirement; CMS 2026 Medicare Parts A and B premiums; Medicare.gov on enrollment penalties; IRS final RMD regulations (July 2024) and proposed rule REG-103529-23.
Educational information only, not financial, tax, legal, or investment advice. Your own ages and limits depend on your birth year and your plan, so confirm them with a licensed advisor.
