AVISTA CORP

Capital Structure

Our consolidated capital structure, including the current portion of long-term debt and short-term borrowings consisted of the following as of June 30, 2026 and December 31, 2025 (dollars in millions):

Our shareholders’ equity increased $112 million during the first half of 2026 primarily due to net income and the issuance of common stock, which was partially offset by dividends paid.

See “Note 10 of the Notes to Condensed Consolidated Financial Statements” for additional information regarding long-term debt and “Note 13 of the Notes to Condensed Consolidated Financial Statements” for additional information regarding common stock.

Short Term Borrowings

Avista Corp. has a committed line of credit with various financial institutions in the total amount of $500 million with an expiration date of June 2029. We may request that the lenders extend their commitments for an additional one-year period (subject to customary conditions).

We also have a continuing letter of credit agreement in the aggregate amount of $65 million, which was increased from $50 million in June 2026. Either party may terminate the agreement at any time.

The following table summarizes the balances outstanding and available liquidity as of June 30, 2026 (dollars in millions):

(1)

As of June 30, 2026, there was $296 million outstanding under the committed line of credit; however, $226 million was classified as short-term borrowings and $70 million was classified as long-term on the Condensed Consolidated Balance Sheet due to the Company's intention to refinance such amount on a long-term basis. The amount classified as long-term debt will be refinanced through the issuance and sale of first mortgage bonds in August 2026, pursuant to a bond purchase agreement entered into in May 2026.

(2)

Letters of credit are not reflected on the Condensed Consolidated Balance Sheets. If a letter of credit were drawn upon by the holder, we would have an immediate obligation to reimburse the bank that issued that letter.

The Avista Corp. credit facilities contain customary covenant and default provisions, including a change in control (as defined in the agreements). The events of default under each of the credit facilities also include a cross default from other indebtedness (as defined) and, in the case of the letter of credit agreement, other obligations. The committed line of credit agreement also includes a covenant which does not permit our ratio of “consolidated total debt” to “consolidated total capitalization” to be greater than 65 percent at any time. As of June 30, 2026, we complied with this covenant with a ratio of 54.4 percent.

Balances outstanding and interest rates of borrowings (excluding letters of credit) under Avista Corp.'s lines of credit were as follows as of and for the six months ended June 30 (dollars in millions):

AEL&P

AEL&P has a $25 million committed line of credit that expires in June 2028. As of June 30, 2026, there was no balance outstanding under this committed line of credit, and $25 million of available liquidity.

The AEL&P credit facility contains customary covenants and default provisions including a covenant which does not permit the ratio of “consolidated total debt at AEL&P” to “consolidated total capitalization at AEL&P” (including the impact of the Snettisham obligation) to be greater than 67.5 percent at any time. As of June 30, 2026, AEL&P complied with this covenant with a ratio of 48.3 percent.

As of June 30, 2026, Avista Corp. and its subsidiaries complied with all of the covenants of their financing agreements, and none of Avista Corp.'s subsidiaries constituted a “significant subsidiary” as defined in Avista Corp.'s committed line of credit.

See “Note 9 of the Notes to Condensed Consolidated Financial Statements” for additional information regarding our short-term borrowing arrangements.

Liquidity Expectations

In 2026, we expect to issue $230 million of long-term debt, including the $160 million issued through June 30, 2026. We expect to issue $90 million of common stock in 2026 (including $58 million issued through June 30, 2026).

In addition, we are evaluating the need for up to $100 million of additional short-term liquidity by the end of the fourth quarter of 2026. See further discussion of liquidity requirements in “Overall Liquidity” above.