Money moment. Free, no account.
You are getting married or moving in together
Sharing a home or a life puts two sets of money habits in one place. The big decisions are who pays what, who gets the money if something happens, and how taxes work once you are married.
First 3 things this week
About 30 seconds to read. Ticks stay on this device.
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How it works
Decide how the money is organized
Many couples use one joint account for shared bills and keep separate accounts for personal spending, and others go fully joint or fully separate. No option is required. A written rule both of you can read prevents most arguments. Who owns what after marriage depends on your state.
Update the beneficiaries
Beneficiary forms on retirement accounts, life insurance and many bank accounts generally decide who gets the money, ahead of a will. They do not change when you marry. Many 401(k) plans require a spouse's written consent to name someone else, so ask each plan.
Choose a filing status
Your filing status is generally based on your marital status on December 31. Married couples file jointly or separately. For 2026 the standard deduction is $32,200 for a joint return and $16,100 for married filing separately. The IRS says most couples save money by filing jointly.
Update withholding and coverage
Two jobs can leave too little tax withheld on a joint return, so recheck both W-4s. A marriage opens a special enrollment period for a marketplace health plan, and employer plans often allow about 30 days to add a spouse. Ask yours for the date.
Change a name on the right records
If one of you takes a new name, the Social Security card comes first, then the driver's license and payroll. Social Security makes the change free. If you are moving in together without marrying, none of this applies, so check your lease and each person's accounts instead.
A worked example
Sample, not your numbers
Two single returns against one joint return
Sample numbers: partners earning $120,000 and $40,000 in wages. Federal income tax only, 2026 brackets and standard deduction, no credits, no state tax, no payroll tax.
- Tax as two single filers
- $20,190
- Tax on one joint return
- $17,540
- Joint return is lower by
- $2,650
When incomes are far apart, the joint brackets tend to lower the total. When both partners earn a lot, a joint return can cost more than two single ones. Your own result depends on credits, deductions and state tax.
What to ask HR, your lender or a tax pro
HR or the benefits team
- How long do I have to add a spouse, and what proof do you need?
- Where are my beneficiary forms, and does the 401(k) require my spouse's consent to name someone else?
A tax pro
- Should we file jointly or separately this year, and what does each cost us?
- Do federal student loan payments change if we file separately?
- How should we set withholding on two paychecks?
Run your own numbers
- Tax optimizer labExplore contribution and deduction strategies.
- Budget builder labPlan a balanced monthly budget with allocation benchmarks.
- Life insurance needs labSize a policy from income replaced, remaining debt, and household costs.
- Chapter 10: tax optimization & planningTax-aware investing basics
Chapter 18: estate tools & beneficiaries covers beneficiaries and the documents that decide who gets what. Chapters 4 to 18 are Pro.
Sources
- IRS: filing status (opens in a new tab)
- IRS: tax inflation adjustments for 2026 (standard deduction) (opens in a new tab)
- IRS: Tax Withholding Estimator (opens in a new tab)
- HealthCare.gov: special enrollment periods (opens in a new tab)
- SSA: how do I change or correct my name on my Social Security card (opens in a new tab)
Figures read from these pages on October 6, 2026. Property, debt and inheritance rules for couples depend on your state, and unmarried partners have fewer default protections than spouses. A lawyer can answer questions about your own situation.
Education, not financial, tax or legal advice. The example uses sample numbers, and your own situation will differ.