Marriage isn’t just about two people who fall in love and choose to spend the rest of their lives together. It is also a contract. And while that contract might not be forever binding, marriage does come with certain financial and familial obligations regardless of whether the couple stays married or not.

That is why it is critical for couples to discuss their finances and goals early in the game. In fact, the best time to begin this conversation is actually before they begin making wedding plans. That’s because weddings can be very expensive. If the couple bears this expense, they will remove funds from their future plans and opportunities, which they should consider carefully before designing a wedding budget.

However, many times the parents of a couple will pay for the wedding. In this scenario, the newlyweds should consider how the cost of an expensive wedding would impact the paying party’s long-term financial situation. This is important because bankrupt parents could lead to a potential live-in caregiving situation once they are too old to take care of themselves. That’s quite a trade-off for a $100,000 wedding.

Takeaway: Regardless of who pays for the wedding, moderation is perhaps both prudent and considerate.

Partners also should share information about their earnings, assets, debts and credit reports before getting married. They should discuss their career goals, preferences for children, type of housing, living location(s) and any big-ticket dreams, such as an expensive vacation or starting their own business. Together, the couple should consider each other’s goals and develop a plan to achieve those goals given their combined financial situation.

Takeaway: Note that while each spouse retains their own credit score and liability for debts prior to the marriage, joint debts acquired during the marriage are recorded on both credit reports.

Once married, couples often assume respective responsibilities, such as household earner and bill payer while the other is homemaker and primary child caregiver. From a financial perspective, this is not wise. It’s better for the marriage when each spouse takes turns managing finances, including paying bills, learning about investing and working with a financial advisor if they have one, being on all the joint accounts (home deed, insurance policies, etc.) and even each having their own retirement account (e.g., IRA, employer-sponsored retirement plan).

Takeaway: A collaborative approach to finances enables transparency so each spouse is aware of the other’s spending habits and bill-paying discipline.

The relationship tends to have more balance if each spouse has their own money, even if they do not work outside the home. If both spouses work, they could each have a checking account for their own personal expenses as well as a joint account used to pay for communal expenses like rent/mortgage, utilities, food and upkeep.

Takeaway: A higher-earning spouse may contribute to a lower/no-earning spouse’s Roth IRA so that person has income to manage as they see fit.

Shared finances among married couples does offer certain benefits, such as lower costs for housing, health, long-term care and auto insurance premiums. With particular regard to health insurance, consider if one spouse should join the other’s plan and how that might impact premiums, deductibles and out-of-pocket expenses.

Takeaway: Find out if either spouses’ employer offers an incentive for declining coverage. This bonus income provides a good reason to join the other spouse’s plan.

Couples also have the option to compare the advantages of filing joint or separate tax returns, which may be impacted by one partner’s medical expenses or student loan debt. Also be aware that no matter what time of year you have your wedding, as long as you are married as of Dec. 31, the IRS considers you married for the whole year for tax-filing purposes.

Takeaway: If one spouse is on an income-based student loan debt repayment plan, be aware that filing jointly with two incomes may result in higher payments than if they file separately.

Right after the wedding, there are several actions most couples should take. For example, report any name changes to the Social Security Administration; update any address changes with the Postal Service, employers and the IRS; and supply your employers with a new W-4 withholding form.

Takeaway: If you’re taking an extended honeymoon, you might want to complete some of these tasks before your wedding day.