Quick Read

• Filing single after a spouse dies can push income from the 22% to 32% tax bracket and potentially triple Medicare Part B premiums.

• Couples should immediately audit beneficiary designations, refresh POA documents, and convert up to $150,000 to Roth while joint filing keeps rates lower.

• Without an LTC policy, which is unavailable after a cancer diagnosis, earmark between $300,000 and $400,000 as a dedicated care reserve in short Treasuries yielding near 4%.

• Many financial professionals are salespeople paid on what they push, not whether you end up wealthier. A fiduciary is the opposite. The SEC legally requires them to put your interests first. Advisor.com’s free matching tool pairs you with vetted fiduciaries from firms like Vanguard, Empower, and Edelman — in under three minutes. See who you match with today.

A stage 2 cancer diagnosis can turn your world upside down. While the first focus must be on health and treatment, retirees often need to make some big financial decisions fairly quickly. A short list of decisions can get materially harder, or impossible, once treatment intensifies or one spouse passes.

Roughly two million Americans are diagnosed with cancer each year, and a meaningful share are in their late 60s and 70s. For many, the bulk of their wealth is in pretax retirement accounts. Estate attorneys report common issues: paperwork that has not been touched since the kids were in college, beneficiary forms naming a deceased parent, or a healthcare proxy signed in a different decade.

The financial tension here is filing status. Let’s assume a 70-year-old couple with $1.8 million in savings is hit with this diagnosis. A married couple in 2026 gets a standard deduction of $32,200 and stays in the 12% bracket on taxable income up to $100,800, with the 22% bracket extending to $211,400. The surviving spouse, filing single the year after a death, sees those bands cut roughly in half. Income that costs 22% today can cost 32% or more later, and IRMAA surcharges on Medicare follow the same logic. The standard Medicare Part B premium in 2026 is $202.90, but joint filers with modified AGI above $218,000 start paying surcharges that can push the total premium above $689 per month at the top tier.

Three Decisions to Make

1. Confirm beneficiaries on every account, policy, and trust. Pull statements for both IRAs, any old 401(k)s, brokerage TOD designations, life insurance, and annuities. Beneficiary designations override wills. A form naming an ex-spouse or a deceased sibling will be honored exactly as written, regardless of what the will says. Add or update contingent beneficiaries while both spouses can still sign. This is a one-afternoon project that could prevent a multi-year probate fight.

2. Refresh the healthcare POA, HIPAA authorization, and financial POA. Many couples have forms from a decade ago that name adult children who have since moved, divorced, or stopped talking. Hospitals will not release information without a current HIPAA release, and a durable financial power of attorney needs to be accepted by the specific banks and brokerages where the money sits. Call each institution and ask whether they require their own form.

3. Consider running a Roth conversion this year, and penciling in another for next year. Filling the 12% and 22% brackets while still filing jointly converts pretax dollars at a known, lower rate than the surviving spouse will likely face. Converting $100,000 to $150,000 this year can move money out of the deferred tax pile without crossing the 24% line or triggering the worst IRMAA tiers. Consider scheduling a meeting with a CPA or fee-only planner specifically to size the Roth conversion before Dec. 31.