Reserves Scale By Loan Size On A Bank Statement Mortgage — The Quick Read: Reserves move up in steps as loan size climbs, not on a straight line. Across the wholesale programs Lendmire places files with, the base ladder runs 3 months of PITIA coverage for loans up to $500,000, 6 months up to $1,500,000, and 9 months above that — plus 2 extra months for every other financed property, capped at 12 months. First-time investors get bumped to 12 months regardless of loan size. Above $4,000,000, every file goes through case-by-case review, and reserve counts there are decided file by file, not off a published table.
That’s the mechanical answer. The rest of this piece explains why the ladder is shaped this way, where the edge cases live, and what a high-net-worth borrower with complex income needs to plan for before applying.
The Reserve Ladder, Plain
Reserves are cash or near-liquid assets a borrower still holds after the down payment and closing costs clear — never counted twice toward funds-to-close. They’re measured in months of PITIA: principal, interest, taxes, insurance, and any HOA dues, but not mortgage insurance.
On the bank statement programs Lendmire’s network places, the base tiers look like this:
| Loan Size | Base Reserve Requirement |
|---|---|
| Up to $500,000 | 3 months PITIA |
| $500,000 – $1,500,000 | 6 months PITIA |
| Above $1,500,000 | 9 months PITIA |
| First-time investor (any size) | 12 months PITIA |
Add 2 months of reserves for every other financed property in the borrower’s portfolio, up to a 12-month ceiling. So an experienced investor buying their sixth rental at $900,000 doesn’t sit at 6 months — the property-count add-on can push that file toward the 12-month cap even though the loan amount alone wouldn’t require it. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
This isn’t unique to bank statement paper. Related programs — reserves counted by loan size on other Lendmire files and how reserves scale with loan size on a 1099 file — follow the same underlying month-count logic, just with different documentation feeding the income side.
Key Terms Defined
PITIA — the full monthly housing obligation: principal, interest, taxes, insurance, and association dues, if any.
Reserves — liquid or near-liquid assets left over after closing, measured in months of PITIA the borrower could cover without new income.
Expense ratio — the percentage of business bank deposits treated as overhead and subtracted before income qualifies; fixed at 20%, 40%, or 50% depending on staff size and business type, or set by an accountant or profit-and-loss method.
Asset allowance — a qualification path where liquid assets are divided by 36, 60, or 84 months to generate qualifying income instead of using bank deposits.
Case-by-case review — the underwriting posture for every loan above $4,000,000, where reserves, leverage, and documentation are decided file by file rather than off a published ladder.
Why Reserves Rise With Loan Size, Not With Income Type
The reasoning here is about risk, not paperwork. A bigger loan means a bigger monthly payment. So lenders want proof that the borrower can handle a vacancy, a tenant who stops paying, or a gap in income without missing a mortgage payment. This is a federal compensating-factor idea, not a bank statement rule. Reserve requirements themselves are set by individual wholesale investors, so they vary from lender to lender across the network.
Across the files in Lendmire’s network, this pattern holds true no matter how income gets documented — whether through bank statements, assets, or a mix of both. The month-count idea comes from agency underwriting rules. Fannie Mae’s Selling Guide defines reserves as the number of months of PITIA payments a borrower could cover using their financial assets. Non-QM lenders borrowed this same measurement, then built stricter, higher requirements on top of it. Agency guidelines don’t directly govern bank statement or DSCR loans. We mention them here only to show where the “months of PITIA” idea came from.
What Happens Above $4,000,000?
Every loan above $4,000,000 goes through case-by-case review before submission. This review looks at leverage, reserves, and documentation together — not reserves alone. There’s no published month-count for this tier. Instead, each file gets sized individually. Lenders look at property type, borrower liquidity, credit depth, and how the loan fits into the borrower’s overall finances. The CFPB’s Ability-to-Repay rule lists documented assets — including reserves — as one of eight factors lenders weigh when checking repayment ability. But the rule never sets a specific month-count.
Above $3,500,000 on a primary residence (or $3,000,000 on a second home or investment property), extra rules kick in no matter what reserve tier you’re in. These include a 700 credit score minimum, a 48-month waiting period after any credit event, and — importantly — cash-out proceeds can’t be used to meet reserve requirements at this level. If you pull equity out of a large property, you can’t use that same cash to satisfy your reserves. The reserve funds must be separate money that’s already been sitting in your account for a while.
Above $6,000,000, the bank portfolio program takes over on its own ladder — 65% leverage to $5,000,000, 60% to $10,000,000, 55% to $30,000,000, interest-only capped at 60% or the band ceiling, whichever is lower. That program uses 12 consecutive months of statements rather than the 12- or 24-month window available on the portfolio non-QM side. Reserve mechanics at that scale are decided per file, not off a table — a borrower asking “how many months do I need at $12 million” won’t get a single number until the file is underwritten. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
Retirement and Brokerage Assets — The Discount Nobody Explains Well
On most files across the network, retirement accounts count toward reserves at 70% of the vested balance. That discount rises to 80% once the borrower turns 59.5 or older, since early-withdrawal penalties matter less at that age. Brokerage and other liquid investment accounts typically count at close to full value. However, market volatility and account type can affect how an underwriter treats them on a case-by-case basis.
This is a spot where borrowers moving between conventional and non-QM paperwork get tripped up. Current agency guidance no longer applies a blanket haircut to vested, penalty-free retirement funds — but that’s an agency rule, and it has no bearing on bank statement or DSCR files, where the discount convention still applies. Treating a $2 million 401(k) as $2 million in reserves on a bank statement application is a common and costly assumption error.
Interest-Only Doesn’t Shrink the Reserve Math
A borrower choosing an interest-only structure often expects a lower reserve requirement because the monthly payment is lower. That’s not how it works. Reserve math on most programs runs against the fully amortizing payment, not the interest-only payment actually being charged — so an IO borrower still needs to show reserves sized to the bigger, amortizing number. On the portfolio program, interest-only is available to 85% LTV with a 700 credit floor across a 40-year term with a 10-year IO period; on the bank program, IO tops out around 60% LTV using 5- and 7-year fixed-period adjustables. Neither structure discounts the reserve calculation.
Documentation and Business Deposits
Lenders verify reserves through consecutive statements on the accounts holding them. These can be checking, savings, money market accounts, or the most recent statement for brokerage and retirement accounts. Underwriters trace any transfers between accounts during that time period. They also require you to explain large or unexplained deposits. Retirement and brokerage assets get valued at a discount, as noted above, rather than at full dollar value.
For income qualification, deposits from the borrower’s own business into a personal account count in full — with no discount. Deposits into a business account get reduced by an expense ratio first. This ratio is based on employee headcount and business type, or a rate that an accountant provides. Borrowers can also use a profit-and-loss method instead, which is capped at 80%. This expense ratio affects your qualifying income, not your reserves directly. But if the ratio leaves you with thin income, you may have less room to also build up strong reserves. That’s why you should plan both numbers together, not separately.
DSCR loans are for investment properties where the owner doesn’t live there. They’re business-purpose investor loans, so lenders review them differently than a standard owner-occupied mortgage. This matters if you’re an investor comparing a bank statement loan against Lendmire’s complete DSCR loans guide. That’s because DSCR lenders mainly look at whether the property’s rental income covers the payment, subject to lender guidelines. They don’t focus on your personal deposits.
Common Mistakes That Sink Reserve Planning
Investors consistently make the same handful of errors:
1. Counting the same dollars twice. Reserves must remain in the account after the down payment and closing costs are paid — using projected leftover cash from the down payment pool as reserves is a frequent and avoidable miscalculation.
2. Assuming reserves scale linearly with loan size. A $6 million loan doesn’t need ten times the reserves of a $600,000 loan. The unit measured is months of PITIA, and what actually drives the increase is risk tier, not a multiplication formula.
3. Forgetting the property-count add-on. A fourth or fifth rental purchase at an identical loan amount to the first can carry a materially higher reserve bar purely because of portfolio size.
4. Assuming interest-only lowers the reserve bar. It doesn’t — the fully amortizing payment is what most programs use for the calculation.
5. Overvaluing retirement assets. Applying the agency’s no-haircut treatment to a bank statement file overstates available reserves and can derail a file late in underwriting.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Frequently Asked Questions
Does a bigger down payment reduce how many months of reserves I need?
Not directly. Reserves are measured separately from the down payment and are meant to remain in the account after closing costs and the down payment are paid. A larger down payment can improve leverage and pricing conversations, but it doesn’t substitute for the reserve requirement itself. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
Can I use retirement account funds to meet reserves on a bank statement loan?
Yes, typically at 70% of vested balance, rising to 80% once the borrower is 59.5 or older. Brokerage and liquid investment accounts are generally counted closer to full value. Business funds, gift funds, unvested stock, and cryptocurrency don’t count toward reserves on most programs in the network.
Does refinancing to pull cash out give me more reserve cushion?
No — cash-out proceeds cannot satisfy reserves, particularly under super-jumbo overlays above $3,500,000 on a primary residence or $3,000,000 on a second home or investment property. Reserves have to come from already-seasoned, separate liquidity.
What if I’m buying my first rental property — does the loan-size ladder still apply?
First-time investors are typically held to 12 months of reserves regardless of loan size, overriding the base ladder entirely. That’s the highest tier on the chart, and it applies even on a smaller loan amount where an experienced investor might only need 3 or 6 months.
Is there a published reserve number for loans above $4,000,000?
No. Every file above that size goes through case-by-case review before submission, and reserves are sized individually alongside leverage and documentation rather than off a published table.
If you’re buying or refinancing a property and want to see how reserves, leverage, and documentation fit together for your file, Lendmire can help compare bank statement and DSCR loan options based on income structure, credit profile, and investor goals. Reach the team at 828-256-2183 or request a quote.
For current guidelines and terms, see Lendmire’s super jumbo bank statement loan programs page.
Self-employed borrowers can compare both super jumbo programs on Lendmire’s self-employed mortgages page.
About Lendmire
As a DSCR and non-QM mortgage broker, Lendmire — NMLS# 2371349 — connects investors with wholesale lending channels across 40 markets, including Washington, D.C. The property’s rental income, not the borrower’s tax returns, is central to lender review, which works for self-employed operators and portfolios beyond four financed properties. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide B3-4.1-01 — Minimum Reserve Requirements
2. CFPB — Ability-to-Repay Rule Summary (PDF)
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.
