As of my last update in January 2022, government regulations regarding down payments on mortgages in the United States vary depending on the type of loan and the government agency involved. Here are some key regulations and guidelines:

1. **Conventional Mortgages:** For conventional mortgages, which are not insured or guaranteed by the government, lenders typically require a down payment of at least 3% to 20% of the home's purchase price. The specific down payment requirement depends on factors such as the borrower's credit score, income, and debt-to-income ratio.

2. **Federal Housing Administration (FHA) Loans:** FHA loans are insured by the Federal Housing Administration and are popular among first-time homebuyers and those with lower credit scores. FHA loans typically require a minimum down payment of 3.5% of the purchase price.

3. **Department of Veterans Affairs (VA) Loans:** VA loans are guaranteed by the Department of Veterans Affairs and are available to eligible veterans, active-duty service members, and certain surviving spouses. VA loans often do not require a down payment, although borrowers may choose to make a down payment if they wish to reduce the loan amount or avoid paying a funding fee.

4. **USDA Loans:** The U.S. Department of Agriculture (USDA) offers loans to eligible rural homebuyers through its Rural Development program. USDA loans typically do not require a down payment.

5. **Regulatory Oversight:** Regulatory agencies such as the Consumer Financial Protection Bureau (CFPB) and the Federal Housing Finance Agency (FHFA) oversee mortgage lenders and establish guidelines for mortgage lending practices, including down payment requirements. These agencies aim to ensure that down payment requirements are fair and reasonable and do not pose barriers to homeownership.

It's important to note that down payment requirements can vary based on factors such as the borrower's creditworthiness, the type of property being purchased, and the lender's specific underwriting criteria. Borrowers should consult with mortgage lenders to understand the down payment requirements for their specific situation. Additionally, down payment assistance programs may be available to help borrowers with limited funds for a down payment.

The current government regulations regarding down payments on mortgages are as follows :

 Down payments typically range from 3% to 20% of the purchase price.

The typical first-time homebuyer puts 6% down and borrows the remainder from a bank or other financial organization.

The down payment has an effect on the loan's terms and circumstances, as well as the kind of mortgage and the amount borrowed.

 You may be eligible for cheaper interest rates if you make a bigger down payment, which will result in a lower loan-to-value ratio or LTV.