Exhibit (s)

Calculation of Filing Fee Table

N-2

(Form Type)

New Mountain Finance Corporation

(Exact Name of Registrant as Specified in its Charter)

Table 1: Newly Registered and Carry Forward Securities

Security Type

Security Class Title

Fee Calculation or Carry Forward Rule

Amount Being Registered

Proposed Maximum Offering Price Per Unit

Proposed Maximum Aggregate Offering Price(1)

Fee Rate

Amount of Registration Fee(1)

Carry Forward Form Type

Carry Forward File Number

Carry Forward Initial Effective Date

Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward

Fees to be Paid

Equity

Common Stock, $0.001 par value(2)

Equity

Preferred Stock(2)

Other

Subscription Rights(3)

Debt

Debt Securities(4)

Other

Warrants(2)

Unallocated (Universal) Shelf

Unallocated (Universal) Shelf

457(o)(1)

$53,061,843.90

0.00011020

$5,847.42

Fees Previously Paid

$5,847.42

Carry Forward Securities

Equity

Common Stock, $0.001 par value(2)

Equity

Preferred Stock(2)

Other

Subscription Rights(3)

Debt

Debt Securities(4)

Other

Warrants(2)

Unallocated (Universal) Shelf

Unallocated (Universal) Shelf

415(a)(6)

$696,938,156.10(5)

N-2

333-238554

May 21, 2020

$76,802.58

Total Offering Amount

$750,000,000(6)

$82,650

Total Fees Previously Paid

$76,802.58

Total Fee Offsets

$—

Net Fee Due

$5,847.42

(1)Estimated pursuant to Rule 457 solely for the purposes of determining the registration fee. The proposed maximum offering price per security will be determined, from time to time, by New Mountain Finance Corporation (the “Registrant”) in connection with the sale by the Registrant of the securities registered under this registration statement.

(2)Subject to Note 6 below, there is being registered hereunder an indeterminate number of shares of common stock, preferred stock, or warrants as may be sold, from time to time. Warrants represent rights to purchase common stock, preferred stock or debt securities.

(3)Subject to Note 6 below, there is being registered hereunder an indeterminate number of subscription rights as may be sold, from time to time, representing rights to purchase common stock.

(4)Subject to Note 6 below, there is being registered hereunder an indeterminate principal amount of debt securities as may be sold, from time to time. If any debt securities are issued at an original issue discount, then the offering price shall be in such greater principal amount as shall result in an aggregate price to investors not to exceed $750,000,000.

(5)Pursuant to Rule 415(a)(6) under the Securities Act of 1933, as amended (the “Securities Act”), this registration statement includes $696,938,156.10 in aggregate principal offering price of unsold securities (the “Unsold Securities”) that were previously registered for sale under the Registrant’s Registration Statement on Form N-2 (File No. 333-238554) initially filed on May 21, 2020, which immediately became effective upon filing (the “Prior Registration Statement”). The Registrant previously paid filing fees in the aggregate of $76,802.58 relating to the Unsold Securities. Pursuant to Rule 415(a)(6) under the Securities Act, the filing fees previously paid with respect to the Unsold Securities will continue to be applied to such Unsold Securities. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of Unsold Securities under the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this registration statement.

(6)In no event will the aggregate offering price of all securities issued from time to time pursuant to this registration statement exceed $750,000,000.