This study is about helping couples who both smoke quit smoking. It's called "Dyadic Financial Incentive Treatments for Dual Smoker Couples" or DSCs. The study wants to see if giving money, called "financial incentives," can help these couples stop smoking. There are three groups in the study: one group gets no money, the second group gives money to just one person in the couple, and the third group gives money to both people. The study will last for one year, with check-ins at 1, 3, 6, and 12 months. All participants will get nicotine replacement therapy (NRT), which are products that help people stop smoking by giving them a small amount of nicotine in a safer way, like patches or gum.

• Length: Participation lasts 1 year.
• Visits: Four follow-ups via video, at 1, 3, 6, and 12 months.
• Compensation: Financial incentives for quitting smoking, depends on group.