Year-End Tax Deadlines to Watch to Protect Your Savings

Investors and retirees should complete tax-loss harvesting and RMDs before December 31 to avoid potential tax penalties.

Updated on Oct. 25, 2026 in Taxes

Year-End Tax Deadlines to Watch to Protect Your Savings

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Is now a good time to review your year-end financial and tax strategies?

Investors have until December 31, 2026, to execute year-end tax strategies such as tax-loss harvesting and Roth conversions to potentially reduce their 2026 tax liability. Retirees must also ensure they meet required minimum distribution (RMD) rules to avoid excise tax penalties.

Why it matters

Failing to complete financial transactions before the calendar year-end deadline means taxpayers miss out on specific tax benefits. Managing these items now allows households to maximize write-offs or avoid significant penalties on retirement accounts.

Tax-loss harvesting allows investors to offset up to $3,000 of ordinary income annually using investment losses. Additionally, retirees who fail to take RMDs face a 25% excise tax penalty, which can be reduced to 10% if the shortfall is corrected within two years.

The players

Vanguard

An investment management firm that provides retirement accounts and tax-planning guidance to individual investors.

The details

Investors can sell positions held at a loss in taxable accounts before December 31 to offset capital gains or apply losses against ordinary income up to the $3,000 limit. For retirees aged 70.5 and older, qualified charitable distributions allow them to direct IRA funds directly to 501(c)(3) charities, counting toward RMD requirements without increasing taxable income. Retirees turning 73 in 2026 have until April 1, 2027, to take their first RMD, though delaying may result in two distributions in one tax year.

Vanguard published its year-end tax-planning brief on Oct. 14, 2026.
The deadline for tax-loss harvesting and Roth conversions is Dec. 31, 2026.
Retirees turning 73 in 2026 must take their first RMD by April 1, 2027.

Money Landscape

The current tax-planning environment is defined by the requirements of the SECURE 2.0 Act, which adjusted RMD age thresholds and penalty structures. Households should align their end-of-year activity with these updated federal rules to maintain compliance and tax efficiency.

Check your retirement account status and current investment losses before the year closes to determine if harvesting losses or charitable distributions fit your tax plan. Because RMD rules are complex, consider discussing your specific tax situation and distribution schedule with a qualified tax professional.

The takeaway

Tax-planning is a time-sensitive process where minor errors can lead to significant excise tax penalties. Review your IRA and investment accounts now to ensure you meet all regulatory deadlines before the December 31 cutoff.