NYC Co-op Financial Requirements: Down Payment, DTI, and Post-Closing Liquidity
Qualifying for a mortgage and qualifying for a co-op board are two different tests — and the board's is usually stricter. Boards are protecting a corporation whose shareholders share financial fate: if you default on maintenance, your neighbors cover it. Here are the three numbers nearly every board scrutinizes.
1. Down payment: typically 20%–25% minimum
Most NYC co-ops require at least 20% down; many require 25%, and top-tier buildings on Park and Fifth Avenues may require 50% or even all-cash. A handful of "financially flexible" co-ops (often in upper Manhattan and the outer boroughs) allow 10%. The building's rule overrides whatever your lender allows — a bank offering 90% financing is irrelevant in a 25%-minimum building.
2. Debt-to-income ratio: typically 25%–30%
Boards calculate DTI as all monthly debt obligations ÷ gross monthly income. Debt includes your projected co-op maintenance, your mortgage payment, plus car loans, student loans, and credit card minimums. Most boards want this at or below 25%–30% — notably tighter than the ~43%–50% many mortgage lenders tolerate. Bonus and RSU income may be discounted or averaged over two years; self-employed income is averaged from tax returns. If your income is lumpy, expect conservative treatment.
3. Post-closing liquidity: typically 1–2 years
After you've paid your down payment and all closing costs (including any mansion tax), boards want to see remaining liquid assets equal to 1–2 years of housing costs (mortgage + maintenance). Some demanding buildings want more.
What usually counts as liquid: cash, savings, brokerage accounts (marketable securities). What's discounted or excluded: retirement accounts (often counted at ~50%–70% or excluded entirely, since they're not readily accessible without penalty), business equity, real estate equity, and unvested RSUs. Every board weighs these differently.
A worked example
Buying a $1,000,000 co-op with 20% down at ~6.5%/30yr and $1,800/month maintenance:
Down payment: $200,000
Closing costs incl. $10,000 mansion tax: ~$25,000
Monthly carry: ~$5,057 mortgage + $1,800 maintenance = $6,857
DTI test at 28%: requires gross income around $294,000/year (including your other debts, you'd need more)
2 years post-closing liquidity: ~$165,000 remaining after closing
Total liquid assets needed at this building's standards: roughly $390,000 — for a $1M apartment. This is the math that surprises transplants.
Other things boards examine
Source of funds: large recent deposits require explanation; gift funds may need a gift letter, and some boards disallow gifted down payments or require guarantors instead.
Guarantors and co-purchasing: some buildings permit parents to co-purchase or guarantee; many prestigious buildings don't. Ask before you bid.
Credit and history: judgments, liens, and late payments in your reports will be seen.
How to position yourself
Ask the listing agent for the building's actual requirements before offering. They vary enormously, and agents generally know them.
Compute your own three numbers first and target buildings where you clear them comfortably — boards reject marginal packages.
Move liquidity where it's visible. Funds you plan to use should sit in accounts you'll document for 2–3 months before applying, to avoid "seasoning" questions.
This article is for general informational purposes only and does not constitute legal or financial advice. Requirements vary by building; mortgage figures are illustrative. Verify specifics with the building's managing agent, your lender, and your attorney. As of August 2026.
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