What is the capital gains tax, and how big a bite does it take?

Dear Liz: We own stocks with enormous capital gains — as in, six figures or more. The tax would be a lot. Any advice on how to limit the tax bite? Our income consists of Social Security and a teacher’s pension.

Answer: Capital gains taxes may be less of a problem than you fear. If your taxable income as a married couple is less than $83,350 in 2022, your federal tax rate on long-term capital gains is zero. (Long-term capital gains apply to profits on stocks held one year or more.) If your taxable income is between $83,350 and $517,200, your federal capital gains tax rate is 15%.

In addition, you may owe state taxes. California, for example, doesn’t have a capital gains tax rate and instead taxes capital gains at the same rate as ordinary income.

Capital gains aren’t included when determining your taxable income, by the way, but they are included in your adjusted gross income, which can affect other aspects of your finances. A big capital gain could determine whether you can qualify for certain tax breaks, for example, and could inflate your Medicare premiums. That’s why it’s important to get good tax advice before selling stocks with big gains.

A tax pro can discuss strategies that might reduce a tax bill, such as offsetting gains with capital losses by selling any stocks that have lost value since you purchased them. You also could consider donating appreciated shares to qualifying charities. If you itemize your deductions, you can deduct the fair market value of these shares. The write-off is typically limited to 30% of your adjusted gross income for the year, although if you donate more you can carry forward the excess deduction for up to five years.

All this assumes that these shares aren’t held in retirement accounts. Withdrawals from retirement accounts are typically taxed as ordinary income and don’t benefit from the more favorable capital gains rates. If the stocks are in an IRA and you’re at least 70½, however, you could make qualified charitable distributions directly to nonprofits and the distributions wouldn’t be included in your income. Again, this is something to discuss with a tax pro before taking action.

Social Security and government pensions

Dear Liz: You recently mentioned the windfall elimination provision that affects pensions from jobs that don’t pay into Social Security. I’m wondering what those jobs are. Are they just part of the gig economy, or is there some other category of jobs that don’t pay into Social Security?

Answer: Gig economy jobs are supposed to pay into Social Security, just like the vast majority of other occupations. People with gig jobs are often considered to be self-employed, so instead of paying just 6.2% of their gross wages into Social Security like most workers, they also pay the employer’s 6.2%, for a total of 12.4% of their earnings.

Some state and local governments have their own pension systems that don’t require workers to pay into Social Security. People who get pensions from those systems and who also qualify for Social Security benefits from other jobs can be affected by the windfall elimination provision, which can reduce their Social Security benefit. They also can be affected by the government pension offset, which can reduce or even eliminate spousal and survivor benefits from Social Security. Here’s an example:

Dear Liz: I am 59, retired, and receive a pension of approximately $150,000 a year. My husband receives a small pension, about $1,000 a month, and Social Security disability due to a diagnosis of Stage 4 lung cancer. I am the sole financial support of my 88-year-old destitute mother, who requires care that costs approximately $5,000 a month. I retired earlier than anticipated to care for my ailing mother and husband.

Although I worked many years where I paid into Social Security, I knew I would receive only about half of my Social Security check due to the windfall elimination provision that affects pensions received from jobs that didn’t pay into Social Security. What I didn’t know is that when my husband passes, I will receive no survivor benefits from his 41-plus years of paying into the system.

Our entire retirement planning was based on his Social Security combined with my pension. He’s just a few months from passing, and I will not be receiving anything, which will immediately put me in an untenable financial position. How is it that after 30 years of marriage I will receive nothing because I have a pension? This just doesn’t seem right. Do I have any options?

Answer: Your situation shows why it’s so important to get sound advice about Social Security before retiring because many people don’t understand the basics of how benefits work.

Even if you didn’t have a pension, for example, your income would have dropped at your husband’s death. When one spouse dies, one of the couple’s two Social Security benefits goes away and the survivor gets the larger of the two checks the couple received.

Your pension is much, much larger than the maximum you could have received from Social Security in any case. If you can’t get by without your husband’s benefit, consider ways to reduce your expenses. Because your mother is destitute, she may be eligible for Medicaid, the government healthcare program for the poor. Unlike Medicare, Medicaid pays the costs of nursing home and other custodial care expenses. Contact your state Medicaid office for details.

Liz Weston, Certified Financial Planner, is a personal finance columnist for NerdWallet. Questions may be sent to her at 3940 Laurel Canyon, No. 238, Studio City, CA 91604, or by using the “Contact� form at asklizweston.com.