New York is Deadbeat City.

Delinquents owe the Big Apple a staggering $2.1 billion in bills racked up since 2017 for parking, traffic, safety code, and property-related violations, according to a new analysis released Wednesday.

However, the Independent Budget Office said the exact amount owed is actually far higher, since its limited study excluded unpaid bills for local income and sales taxes as well as water and sewage invoices — which the watchdog said was “beyond the scope of this project.”

The $2.1 billion tally of arrears does include more than $1 billion in uncollected parking and red light camera-generated fines, more than $150 million in liens for delinquent property taxes and repair bills, and about $940 million in summonses issued by other city agencies for safety and cleanliness violations.

The study also did not estimate how much the city could collect from more aggressive enforcement and collections.

“It’s frustrating to the public. People pay their bills and they see others don’t,” said Manhattan Councilwoman Gale Brewer, who requested the analysis. “We don’t do a good job of collecting this money. We have to do a better job.”

The amount of unpaid parking and camera-generated fines has skyrocketed in recent years as the city increased the number of red light, speeding and bus lane cameras — and extended the hours they operate.

The city reported $70 million in outstanding parking and camera-related fines in 2017. That debt figure surged to $119 million in 2020, $276 million in 2021, and $367 million in 2022.

About 10% of fines issued before 2020 remain unpaid, the report said, while “[t]he share of outstanding fines increases for violations issued from 2020 through 2022.”

On the property side, IBO examined unpaid bills with both the Department of Housing Preservation and Development and the Department of Finance. HPD delinquencies primarily resulted from unpaid emergency repair bills — when property owners failed to repair emergency housing code violations, forcing the city to make the fixes.

The outstanding amounts from Finance cover unpaid property taxes, which totaled fewer than $6 million in 2017 and 2018 before jumping to nearly $25 million in 2019.  In 2020, the unpaid amount fell to $11 million because fewer violations were issued during the COVID-19 pandemic.

But the property arrears surged to more than $50 million in 2021 and 2022 as the outbreak waned.

IBO also looked at delinquent bills imposed by the Office of Administrative Trials and
Hearings (OATH), an independent tribunal.  More than 20 city agencies — including the Sanitation, Building, Health, Environmental, Fire and Police Departments — have issued notices of violations for public safety and quality of life infractions.

Common violations include dirty or obstructed sidewalks, improper storage of trash receptacles and recycling violations and building safety code violations.

The data show a total of $939 million in unpaid penalties adjudicated by OATH from 2017 through 2022 — ranging from $102.2 million in 2017 to a high of $245 million in 2021.

More than two-thirds of the total amount in unpaid bills were issued by the Department of Buildings— $627 million in 2017 through 2022.

The Fire and Sanitation Departments both charged nearly $77 million in fines that were unpaid during the six-year period.

The IBO report shed no light on the biggest individual scofflaws — but out-of-towners, particularly those from New Jersey, are notorious for not paying fines for parking violations.

The report comes as Mayor Eric Adams and the City Council are in talks to adopt a new budget.

Adams on Tuesday ordered city agencies to slash a total of $1 billion annually from their budgets for each of the next four years — cuts of up to 4% — blaming the move partly on the migrant crisis.

“The $2.1 billion in unpaid bills is a big number,” added Brewer, the chairwoman of the council’s investigations and oversight committee. “That would cover the costs of the mayor’s agency reduction plan.”

Hizzoner’s dire directive came one day after council leaders said there was $1.3 billion in extra taxpayer cash available this year to offset costs — and two months after the IBO projected a $4.9 billion surplus in 2023 and a $2.6 billion surplus in 2024.

Adams, who announced an 8-year labor deal with the largest police union Wednesday, had no immediate comment.