10/08/2026
"It's one of the least-discussed shifts in retirement, and one of the most consequential. When the first spouse passes, the survivor usually moves from filing jointly to filing as a single taxpayer — often the very next tax year.
The income may not change much. The household may still be drawing from the same accounts, receiving Social Security, taking required distributions. But the brackets a single filer faces are narrower than the ones a married couple shares, and the standard deduction is smaller. Under current rules, the same income that was comfortable under joint filing can be taxed at a noticeably higher rate once the survivor files alone. On top of that, the IRMAA thresholds that determine Medicare premiums also tighten for a single filer, so the surcharge picture can shift at the same time.
Almost nobody plans for this in advance, because it sits at the intersection of grief and paperwork. Yet it's precisely the kind of event that benefits from being anticipated rather than absorbed. Steps taken during both spouses' lifetimes — the pace of Roth conversions, how accounts are titled, the withdrawal sequence, how Social Security claiming was structured — can all influence how heavy that transition is for the one left behind.
Part of coordinated planning is also making sure the surviving spouse isn't left with a plan they've never seen, at the hardest possible moment to learn it.
In this video, Paul Axberg — a CFP®, CPA, and CIMA® with nearly 30 years working exclusively with retirees and pre-retirees — explains how the shift from joint to single filing works under current law, why it can raise the tax bill on unchanged income, and how planning for it while both spouses are living can ease the transition.
Protecting the person you leave behind is one of the quiet motivations behind good retirement planning. It's a decision best made early, by one advisor who can see how every piece — taxes, income, Social Security, and Medicare — connects.
One advisor. One fee. Everything connected.
The opinions expressed herein are not meant to provide specific investment advice or serve as a prediction for future stock market performance. We recommend everyone consult with a financial professional for advice related to their own, individual financial situation or plan.
Paul D. Axberg is an investment advisor representative of, and securities and advisory services are offered through, USA Financial Securities, Member FINRA/SIPC. A Registered Investment Advisor located at 6020 E. Fulton St., Ada, MI 49301. Axberg Wealth Management is not affiliated with USA Financial Securities. View USA Financial Securities Form CRS:https://www.usafinancial.com/hubfs/Investor%20Documents/USA%20Financial%20Securities%20-CRS.pdf
For further information, please contact our office:
Axberg Wealth Management
Office: 13613 West Camino Del Sol Suite 3, Sun City West, AZ 85375
Main: 623-398-0128
Web: https://axbergwealth.com"
