Looking to save some dough? You might want to get a roommate.

While every New Yorker dreams of living alone, renting your own one-bedroom in the Big Apple comes at a serious cost: around $12,600 more each year, according to a new report by the website SmartAsset.

“One way to save money is to bunk up with other people,” report author AJ Smith told The Post.

While it seems like a no-brainer, the financial tech company ranked New York City second among 10 cities nationwide where living with someone else saves the big bucks.

Comparing the price of a one bedroom to sharing a two-bedroom apartment, the report found doubled-up roommates could save more than $1,000 per month each.

“Of course, this isn’t going to be exactly what every one’s situation is — but when deciding between a two-bedroom apartment compared to a one-bedroom, looking at the data can be so informative,” Smith said.

Throughout the five boroughs, the average rent for a one-bedroom is $2,915 and the average two-bedroom total rent is $3,717.

Splitting that two-bedroom rent between two people is $1,859 — totaling monthly roommate savings to $1,056, the study said.

“That means together two roommates have a combined savings of more than $25,000 annually,” the study claimed.

The argument was even more compelling for couples looking to buy, Smith said.

“If your roommate is someone you may be buying a home with in the future, that’s $25,000 more toward that down payment,” she said.

In June, SmartAsset also released a study that found New York state was hemorrhaging cashed-up millennials — moving to other states for lower income taxes and cheaper rents.

The No. 1. city to save dollars with a roomie is San Francisco, where the average one bedroom costs a mind-boggling $3,361 per month on average.

Five more cities on the list are in California, along with Boston, Miami and Washington, DC.

The data analysis comes from aggregated rent totals from RentJungle, a search engine for online housing.

As the cost of living outstrips increases in income, more and more people in New York City and across the United States are getting roommates. At least 40% of adult New Yorkers live with one, according to analysis of 2016 census data by real estate company Zillow — up from 30% in 2005.

Across the country, 30% of working-age adults — people older than 25 — lived in “doubled-up households” — also up from 21% in 2005.

The study uses a standard from the Department of Housing and Urban Development that defines those who pay more than 30% of their income on rent as “housing cost-burdened.”

The Zillow study found the average New Yorker was spending 41.2% of their income on rent in 2016 — meaning they would have difficulty affording basic necessities, including clothing and medical care, according to HUD.

In 2005, the average New Yorker spent 31% of their income on rent.