PITI Reserves

PITI reserves are a cash amount a mortgage borrower must have available, separate from funds used for the down payment and closing costs, after completing the purchase of a home. The reserve requirement is typically expressed as a number of months' worth of PITI, meaning principal, interest, taxes and insurance, commonly set at around two or three months by many lenders, though the exact figure varies by loan program and borrower risk profile.

Lenders require PITI reserves as a buffer against the possibility that a borrower experiences a temporary loss of income, such as unemployment, and needs a cushion of savings to keep making mortgage payments while getting back on their feet, rather than immediately falling behind and risking foreclosure.

A PITI reserve requirement works like a lender insisting a borrower keep a few months' worth of mortgage payments tucked away in savings, untouched, specifically for emergencies, before the lender is comfortable approving the loan. It is not money the borrower spends at closing; it simply needs to exist, verified and available, as proof the borrower has a safety net if income is disrupted.

This requirement is separate from, and in addition to, the down payment and closing costs a borrower must pay to actually complete the purchase, meaning a borrower needs more total savings than just the amount needed to close the deal.

• Lenders typically require recent bank or investment account statements showing the required reserve amount.
• Funds counted toward reserves generally must be liquid and readily accessible, rather than tied up in non-liquid assets.
• The required number of months can increase for riskier loan profiles, such as investment properties or borrowers with lower credit scores.

PITI reserves give a lender added confidence that a borrower can weather a short-term disruption to income without immediately missing mortgage payments, reducing the lender's overall risk of default on the loan.

The number of months of PITI reserves a lender requires is not fixed across all loans; it typically scales with the perceived risk of the loan, with lower-risk, owner-occupied primary residences often requiring fewer months of reserves than investment properties or loans to self-employed borrowers with less predictable income. Some loan programs waive reserve requirements entirely for well-qualified borrowers, while others, particularly for jumbo loans or multiple financed properties, can require six months or more.

Because reserve requirements add to the total savings a borrower needs beyond the down payment itself, prospective homebuyers are generally advised to confirm the specific reserve requirement for their target loan program early in the home-buying process, rather than discovering it unexpectedly close to closing.

Borrowers who already own other financed properties, such as a rental property alongside their primary residence, often face higher PITI reserve requirements on a new loan, since lenders recognise the added strain multiple mortgage obligations can place on a borrower's finances if income is disrupted. In these cases, a lender may require reserves covering not just the new loan but a portion of the PITI obligations on the borrower's other financed properties as well, reflecting the cumulative risk across the borrower's full real estate portfolio.

This more conservative approach to reserves for borrowers with multiple properties is one of several ways lenders adjust their underwriting standards to reflect genuinely different risk profiles, even among borrowers who might otherwise look similar based on income alone.

Gift funds from a family member are sometimes permitted to count toward satisfying a PITI reserve requirement, though lenders generally require documentation confirming the funds are a genuine gift rather than a loan that would itself represent an undisclosed future repayment obligation for the borrower.

Reserve requirements are typically verified only once, at the time of loan approval, rather than monitored continuously afterward, meaning a borrower is not required to maintain the exact reserve amount indefinitely once the loan has closed.