Taylor Swift announced her engagement to Travis Kelce with a simple caption: "Your English teacher and your gym teacher are getting married."

But the two are far from working on teacher salaries, and the A-list couple will have a lot to consider when it comes to merging finances.

Swift is the world's richest female musician, and while the three-time Super Bowl champion is no billionaire, Kelce makes far more than any gym coach. Case in point: the engagement ring on Swift's finger is worth an estimated $650,000, according to Forbes.

The pop star and Kansas City Chiefs tight end, both 35, on Tuesday, Aug. 26, revealed they're getting married with a set of romantic photos shot about two weeks prior.

Swift, a shrewd businesswoman who's been vocal about the consumption and sale of her music, is likely to pursue a prenuptial agreement with Kelce before heading down the aisle, financial experts say.

"If you just even think about Taylor Swift and her relationship with Spotify and releasing her own versions of things, branding is important to her," Jesica Ray, senior lead advisor at financial consultancy Brighton Jones, tells USA TODAY. "So, making sure she retains that identity, that individual recognition, likely will carry into the way she approaches things with her marriage as well."

Here's what to know about the possibility of Swift and Kelce signing a prenup.

How do prenups and postnups work?

A prenup is a financial agreement a couple can enter before getting married, outlining what will happen to their money and other assets – including homes, inheritances, businesses or debts – if they separate and get divorced.

These agreements can help alleviate some of the animosity in divorces and are a way for couples to have difficult conversations before getting married, San Diego-based lawyer Deveney Wells-Gibson, who runs a second business called The Prenup Queen, previously told USA TODAY.

Additionally, Ray says a prenup can create "clarity" for Swift and Kelce regarding the various assets they have created individually and as a couple, which can include "hidden assets" such as brand partnerships and other "unique" business investments that may not "show up very clearly on a tax return."

In recent years, Kelce has leveraged his football success into sponsorship deals with top brands including General Mills, Subway, Campbell's Soup and State Farm. Meanwhile, Swift has created a consumer subculture within her fanbase, galvanizing Swifties with limited-edition deluxe albums and vinyl variants of her chart-topping pop music.

"There are non-specific assets around branding that may exist for both of them and the identities that they want to have," Ray explains. "All of that can be written into a prenup, so that there's complete transparency should anything ever happen in the future."

A postnuptial agreement is similar to a prenup, but the financial arrangement is established after a couple is married. Ray says that for Swift and Kelce, a prenup may be more ideal and would allow the couple to maintain their privacy with "neutral dispute terms," which lay out how fiscal conflicts should be resolved during a divorce.

"There's significant wealth for both of them," Ray says. "Having all of that really clearly outlined going into a marriage will make them feel like they're going in as an even stronger union than if they were to do it post-marriage."

Why is a prenup important? How the financial agreement can protect couples like Swift and Kelce from 'costly' legal troubles

In 2025, approximately 42% of new marriages are likely to end in divorce, sociologist Yifeng Wan wrote for the Institute for Family Studies in July. On the money front, divorce is among the leading causes of bankruptcy, Wells-Gibson previously told USA TODAY.

For a high-earning couple like Swift and Kelce, there are additional financial incentives to take into consideration.

As an artist, Swift may need to evaluate royalties, intellectual property rights, touring income and control over her music catalog. In the world of sports, Kelce faces economic factors related to his career longevity, endorsement opportunities, injury risk and variable income tied to his NFL performance.

Without the structure of a prenup, Ray says, Swift and Kelce put themselves at risk of a "very lengthy divorce process."

"If they are together and they're happy, and they’re able to mutually communicate to agree upon terms without a legal document, that's amazing," Ray says. "If they aren't, and there's a separation that were to ensue, the lack of clarity around all of these assets could lead to a very, very costly trial."

A Swift-Kelce prenup could 'reduce conflict' with couple's $1.5B income gap

Swift and Kelce are tycoons in their respective fields, but they're not exactly entering the world of marital finances on an equal footing.

The Grammy-winning singer and NFL champion reportedly have a combined net worth of $1.67 billion, according to Forbes. The Grammy-winning singer has an estimated net worth of $1.6 billion, which includes her highly lucrative Eras Tour.

The latest Forbes estimate puts Kelce's net worth at $70 million, up from an earlier estimate of $52 million, thanks to his multimillion-dollar football contract and Amazon-backed podcast "New Heights."

The sizable income gap between the engaged lovebirds – $1.5 billion, to be exact – increases the odds of Swift and Kelce getting a prenup to help manage the financial impact on their marriage, Ray says.

"It helps reduce conflict at the end of the day," she says.

What might a prenup between Swift, Kelce look like? How couple could divide marital assets

Swift and Kelce, like many wealthy couples, may opt to keep their own assets in case of a split.

"It's not like one person's working, and one person is not. Both people are contributing," says Ray of Swift and Kelce. "Both people have brands. Both people have love and respect for one another, and it's sensible to keep the assets that they've built themselves as their own."

Swift is the world's richest female musician thanks to her billionaire status, per Forbes, which is based on a valuation of Swift's numerous homes, private jet and earnings from music sales, concert tickets, streaming deals and merchandise.

But Swift's biggest asset by far is her fully acquired music catalog, much of which was not factored into the singer's net worth estimate. The "Karma" songstress purchased the master rights to her first six albums in May.

Forbes estimates that Kelce is worth $70 million, including part of a $100 million Wondery contract for his podcast "New Heights" with brother Jason Kelce; investments in the Alpine Formula One racing team and 1587 Prime restaurant in Kansas City; businesses like his apparel brand Tru Kolors; and at least one home, a mansion in Kansas City.

Aside from dividing personal assets, Ray says a prenup can help Swift and Kelce identify possible joint assets with their post-marriage earnings, as well as set up spousal support for one another if a divorce were to take place.

"Prenuptial agreements don't need to be all the sad financial division conversations. It can be, 'Even if we were to get divorced, I care about you today, and I want to make sure that you are provided for,'" Ray says. "That is important as you build a life together, and it helps remove some of the insecurities that might come up with asset disparity."

Contributing: Saleen Martin, USA TODAY

This article originally appeared on USA TODAY: Taylor Swift, Travis Kelce have a billion-dollar love story. Will the couple get a prenup?

Reporting by Edward Segarra and Taijuan Moorman, USA TODAY / USA TODAY

USA TODAY Network via Reuters Connect