How Private Credit Funds Are Taxed: PIK, OID, Fees and K-1s

How is a private credit fund taxed, and what does it file?

A private credit fund organized as a limited partnership or a multi-member LLC is usually taxed as a partnership. The fund pays no federal income tax itself. It files Form 1065 and gives each investor a Schedule K-1, and each investor may owe tax on their share of the fund's income whether or not the fund distributes any cash (Partner's Instructions for Schedule K-1).

Each type of income keeps its character on the K-1: cash interest, original issue discount (OID), accrued market discount, fee income and gains or losses on loans sold. That is why a credit fund's K-1 can show far more interest than investors received.

A credit fund's return is harder than an equity fund's because of timing: several rules below tax income before cash arrives, and others allow a loss only after a charge-off, a sale or a default. A late Form 1065 costs $260 per partner per month, for up to 12 months (Rev. Proc. 2025-32). If an IRS audit later changes the fund's income, for example its OID accruals, the fund itself usually pays the tax on the change in the year the audit ends, unless it pushes the change out to that year's investors within 45 days of the final notice (26 USC 6225; 26 USC 6226); see IRS audit of a fund partnership return.

Funds with foreign or tax-exempt investors often admit them through a feeder or blocker corporation; that choice is covered in blocker corporations for fund investors.

What to gather: loan agreements, fee letters, every amendment and waiver, purchase confirmations for loans bought from others, the loan-level accrual schedules and the administrator's NAV packs.

Why is PIK interest taxable before the borrower pays cash?

Payment-in-kind (PIK) interest is usually taxed as it accrues, because it is usually original issue discount. Only "qualified stated interest" escapes the OID rules: interest unconditionally payable in cash or property, other than more debt of the borrower, at least once a year at a single fixed rate (Reg. 1.1273-1(c)), or at a single qualifying floating rate, which covers most floating-rate cash interest (Reg. 1.1275-5(e)(2)). PIK interest is paid in more debt, so it fails that test.

Interest that is not qualified stated interest goes into the loan's stated redemption price at maturity (everything due at maturity other than qualified stated interest), and the difference between that amount and the issue price (roughly, what the fund actually lent) is OID (26 USC 1273). The holder includes OID in income day by day on a constant yield, whether or not anything is paid (26 USC 1272; Publication 1212). Constant yield means the loan's single overall rate is applied each period to its growing balance, so the amount included rises a little each year.

Toggle and optional PIK terms change the analysis:

• Borrower may choose PIK or cash (a toggle). If the borrower may pay a period's interest in kind, none of the stated interest is qualified stated interest, so all of it, including interest paid in cash, accrues as OID. If part of the interest must always be paid in cash, only that part can be qualified stated interest. To build the accrual schedule, the borrower is assumed to choose whichever option gives the loan the lower yield (Reg. 1.1272-1(c)(5) and (j), Examples 7 and 8; Reg. 1.1273-1(c)(2)).
• PIK notes issued. Extra notes issued in place of interest are combined with the original loan, and issuing them is not a payment on the loan (Reg. 1.1275-2(c)(3)).
• Loans of one year or less follow separate short-term rules and are outside this page (26 USC 1272(a)(2)).

Rates that step up on a schedule or move with a pricing grid, and payments that depend on events, need their own review of the loan terms.

Are upfront fees, points, commitment fees and exit fees OID or fee income?

A payment from the borrower to the lender when a loan is made, such as points or an upfront or closing fee, usually lowers the loan's issue price, which creates or adds to OID. The exception is a payment for property or for services the lender provides, such as a commitment fee or loan processing costs (Reg. 1.1273-2(g)(2)(i)).

Two cautions. First, the label in the fee letter does not decide the answer; what the fee actually pays for does. Second, an accrual-method fund with audited financial statements may have to include a fee that would otherwise be OID no later than its statements book it as revenue, when the statements do not spread the fee over the loan's life (26 USC 451(b); Reg. 1.451-3(j)).

We bought loans below par: is market discount taxed yearly or at payoff?

By default, at payoff or sale. Market discount is the amount by which a loan's face value (or, for a loan with OID, its issue price plus the OID accrued before the fund bought it) exceeds what the fund paid for it in the secondary market. Gain on selling the loan is ordinary income up to the accrued market discount, and each partial principal payment is ordinary income up to the discount accrued so far (26 USC 1276(a)). Discount accrues ratably by days held, or on a constant yield if the fund elects that for a loan, which it cannot undo for that loan (26 USC 1276(b)).

The fund can instead elect to include market discount in income each year, treated as interest (26 USC 1278(b)). The fund makes this election, not each investor, by attaching a statement to its timely filed Form 1065 for the first year it applies (26 USC 703(b); Publication 550). The election:

• applies to every market discount loan the fund acquires from the first year it covers, which can be a later year than the first purchase;
• stays in place for later years unless the IRS consents to revoke it;
• raises the fund's basis in each loan by the amount included.

A discount smaller than 0.25% of the face value times the complete years left to maturity counts as zero (26 USC 1278(a)(2)(C)). Market discount included under the election is not treated as interest for withholding on foreign investors; see fund withholding on interest and dividends.

Without the election, a fund that borrows to buy discounted loans also defers part of its interest expense on that borrowing until each loan is sold or paid off; the election ends that deferral (26 USC 1277).

The K-1 shows more interest than we distributed: what do we tell investors?

Tell investors that the K-1 follows income earned, not cash received. OID, PIK and fee accruals are taxable to each partner as the fund earns them, and the cash may arrive years later or never (Partner's Instructions for Schedule K-1). If the loan later pays less, the shortfall becomes a loss or deduction in a later year, not a correction of the earlier one. That loss can be capital even though the interest taxed earlier was ordinary, and capital losses offset ordinary income only up to a yearly limit (see the default section below).

A fund owes tax distributions only if its partnership agreement promises them; see SPV and co-invest vehicle tax returns for how they are usually figured. Investors who need numbers for their own estimated tax payments rely on the fund's estimates; see getting fund tax forms out on time.

How should loan-level books tie NAV, investor statements and K-1s?

Keep one tax schedule per loan, and reconcile it to the fair-value books at year end. The schedule for each loan tracks:

1. Issue price or purchase price, and face value.
2. Cash interest earned and received.
3. PIK capitalized, and OID accrued on a constant yield.
4. Fee items: those folded into OID, and those booked separately.
5. Market discount accrued, and whether the election applies.
6. Non-accrual status and the date it started.
7. Write-downs, charge-offs and the reason for each.
8. Paydowns, sales and amendments, with dates.

The administrator's NAV marks each loan at fair value; the tax return ignores those marks until a sale, payoff or a deductible bad debt, unless the fund marks its loans to market for tax (see the lending-business section). A reconciliation from book income to tax income, loan by loan, is what lets the K-1s tie.

Non-accrual loans. Non-accrual status in the books does not stop OID, including PIK, from accruing for tax: the statute has no exception for doubtful collection (26 USC 1272(a)(1)). Whether an accrual-method fund may stop accruing stated cash interest it doubts it will collect rests on court decisions and the facts, not a statute. Why K-1 capital accounts then differ from NAV is covered in fund tax capital and allocations.

When loan tapes do not tie to the K-1s, the fix starts from the loan documents: each loan's tax schedule is rebuilt before the Form 1065 is finished; see hedge fund tax services.

A borrower defaulted: bad debt or capital loss, and can we deduct a partial charge-off?

The answer depends on whether the loan is a business debt, a nonbusiness debt or a security.

A partial deduction applies only to a specific loan, never to a general reserve, and only to the extent charged off during the year (Reg. 1.166-3(a)). A fair-value markdown in the administrator's books is not, by itself, a tax charge-off. A bad-debt deduction also needs basis: unpaid interest the fund never included in income cannot be deducted (Publication 550).

Check the third row first: a note of a corporate or government borrower that is in registered form or has coupons is a security, and the bad-debt rules do not apply to it, whatever the fund's business (26 USC 166(e)). For other loans, the choice between the first two rows turns on whether the fund is in a lending business (below).

Amend-and-extend, debt-for-equity or foreclosure: is it a taxable exchange?

A significant modification of a loan is treated as an exchange of the old loan for a new one (Reg. 1.1001-3(b)). The fund may then recognize gain or loss, and the new loan can carry new OID or market discount. Changes that happen under the loan's original terms, such as a scheduled rate reset, are usually not modifications at all.

Changes to different terms are tested separately and do not add up, but repeated changes to the same term are combined over time (for yield, those within the last five years) (Reg. 1.1001-3(f)). If the fund took a partial bad-debt deduction earlier, a modification that produces gain can create a deemed charge-off (Reg. 1.166-3(a)(3)).

Debt-for-equity. Swapping a loan for the borrower's stock is usually an exchange measured by the stock's value. If the loan counts as a "security" of a corporate borrower and the swap is part of a reorganization, it can instead be tax-free, except for stock received for interest that accrued while the fund held the loan, which is still taxed (26 USC 354(a)). Whether a loan is a security depends on its terms and term length, so this needs review before closing.

Foreclosure. When the fund bids in the collateral, it realizes gain or loss equal to the difference between the debt applied to the bid and the property's fair market value, which is presumed to be the bid price. Any unpaid balance left may be a bad debt, and the fund's basis in the property is its fair market value on that date (Reg. 1.166-6).

Is our fund in a lending business, and what does that change?

No statute or regulation sets a number. Whether a fund is in the business of lending is a facts-and-circumstances question that courts decide by looking at things such as how many loans the fund originates, how regularly it does so, and whether it holds itself out to borrowers as a lender. A fund that buys a few loans and holds them is usually an investor; a fund that sources, negotiates and closes loans continuously may be in a lending business.

What turns on the answer for US investors:

• Bad debts. Loans that are not securities follow the business bad-debt row of the default table, not the nonbusiness row (26 USC 166).
• Fees. Fees for services, such as commitment or structuring fees, are ordinary income either way (26 USC 61(a)(1)); in a lending business they are also business income, which matters for the deduction below and for foreign investors.
• Qualified business income deduction. Interest is excluded from qualified business income unless it is properly allocable to a trade or business (Reg. 1.199A-3(b)(2)(ii)(C)). Making loans is not a "financial services" activity for this deduction, but arranging loans between others is (Reg. 1.199A-5(b)(2)(ix)). Whether a fund's interest qualifies is fact-dependent.
• Mark-to-market. A fund that regularly makes loans to customers is not a dealer in securities while its loan sales stay negligible: fewer than 60 loans sold in the year, or loans sold with less than 5% of the basis of the loans it acquired that year (Reg. 1.475(c)-1(c)). Above that, it can be a dealer that must mark its loans to market each year end, except loans it identifies in its records as not held for sale by the end of the day it makes them (26 USC 475(a) and (b)). A fund that trades loans may instead elect mark-to-market as a trader; that election and its deadline are covered in first tax year for a new fund.

The same question has larger stakes for foreign investors, who may be treated as engaged in a US business; see blocker corporations for fund investors.

We're a small private lending or mortgage fund: K-1s or 1099-INTs, and do borrowers get Form 1098?

It depends on what each investor holds.

A note is in registered form when the fund (or its agent) records who owns it and it can change hands only through those records (Reg. 1.6049-5(a)(1); Reg. 5f.103-1(c)); notes tracked on the fund's own ownership register can meet this test. A noteholder who is not a US person gets Form 1042-S instead of Form 1099-INT, even when nothing is withheld, and the fund may have to withhold; a fund that should have withheld owes the tax itself (Form 1042-S instructions; 26 USC 1461); see fund withholding on interest and dividends. A US noteholder who does not give the fund a taxpayer identification number is subject to backup withholding at 24%, and the fund owes any amount it fails to withhold (26 USC 3406).

Mixed structures are common: a fund can owe K-1s to its members and Forms 1099-INT to its noteholders in the same year. Late or wrong forms cost $60, $130 or $340 for each return filed with the IRS and again for each copy owed to the recipient, depending on when they are corrected (Rev. Proc. 2025-32); fixing late forms is covered in late contractor and employee tax forms.

What does tax add to the administrator's GAAP or fair-value books?

Tax adds a second set of loan schedules, built from the per-loan items above. Unless the fund marks to market for tax, fair-value gains and losses are not taxable until a loan is sold, paid off or becomes a deductible bad debt. Tax also needs OID that keeps accruing on non-accrual loans, gain or loss on modifications, swaps and foreclosures, and bad-debt timing that follows charge-offs, not marks.

Who prepares which part, the administrator or an accounting firm, is covered in fund administrator or accounting firm.

Example

All figures are in US dollars and illustrative.

PIK interest and one investor's K-1

A fund's only loan is $20,000,000 at 4% cash interest plus 9% PIK, compounding annually. In the first year the fund includes $800,000 of cash interest and about $1,800,000 of OID from the PIK, about $2,600,000 in all, ignoring fees. An investor with 5% of the fund reports about $130,000 of interest ($2,600,000 × 5%) but receives at most $40,000 of cash, its 5% share of the cash interest, and less if the fund holds cash back.

An upfront fee becomes OID

The fund lends $1,000,000 for five years at 10% cash interest paid yearly, and the borrower pays a $20,000 upfront fee that does not pay for any service. The issue price becomes $980,000, so the loan has $20,000 of OID. The de minimis amount is $12,500 (0.25% × $1,000,000 × 5 years), so the OID is not treated as zero. The fund accrues the $20,000 over the five years on a constant yield of about 10.5%: about $3,200 in the first year, rising to about $4,800 in the last, instead of booking it all when received.

A loan bought below par

The fund buys a $1,000,000 loan for $900,000 with four years left. The de minimis amount is $10,000, so the $100,000 discount counts. Without the election, the fund includes nothing until payoff; if the loan pays in full in year four, $100,000 is ordinary income that year. With the election, the fund includes about $25,000 a year as interest under ratable accrual, and its basis rises to $1,000,000 by maturity.

Different for you?

• The fund has foreign or tax-exempt investors, or uses leverage: see blocker corporations for fund investors and fund withholding on interest and dividends.
• An investor lives outside the US, for example in Canada or China: see foreign investor in a US fund.
• You are launching a new credit fund: see first tax year for a new fund.
• The manager's carried interest from the credit fund: see the carried interest three-year rule.
• Lending income in several states: see fund state returns and nonresident withholding.
• K-1 deadlines and investor estimates: see getting fund tax forms out on time.
• The fund owns real estate equity rather than loans: see real estate syndication tax returns.
• Forms 1099-INT or 1098 went out late: see late contractor and employee tax forms.
• Your loan tapes do not tie to the K-1s, a large loan was restructured or written down, or you need the loan-level tax schedules, Form 1065 and K-1s prepared: see hedge fund tax services.
• An investor or employee needs a personal return with fund K-1s: see individual tax.