Investing Bond Proceeds for Housing Finance Agencies

A housing finance agency's reinvestment decision runs on three sector specifics: multifamily housing revenue bonds are commonly conduit financings, the draws typically follow the borrower's project rather than the agency's own calendar, and the private activity bond rules sit over the issue.

This page is the housing entry in mGIC's issuer sectors series: how housing revenue bonds are structured, which funds hold the money, which products fit those funds, and where the sector's compliance lines sit.

How are housing agency projects typically financed?

Multifamily housing revenue bonds are among the common conduit financing types: the MSRB glossary describes a conduit financing as one in which a governmental issuer issues bonds to finance a project used mainly by a third party, the conduit borrower, and the conduit borrower is liable for making the debt service payments on the bonds.

The glossary's other common conduit types include industrial development bonds and qualified 501(c)(3) bonds.

For the reinvestment decision, the practical effect of the conduit structure is that the proceeds are spent on the borrower's project, so the investable balance typically follows the loans and disbursements rather than the agency's own spending calendar.

Where the bond meets the private activity bond tests, tax exemption depends on it being a qualified bond: section 141(e) counts exempt facility bonds, qualified mortgage bonds, qualified veterans' mortgage bonds, qualified small issue bonds, qualified student loan bonds, qualified redevelopment bonds and qualified 501(c)(3) bonds as the qualified categories.

IRS Publication 4078 lists qualified residential rental projects among the exempt facility categories in section 142, alongside airports and spaceports, docks and wharves, mass commuting, water, sewage, solid waste, local electric and gas, and qualified highway or surface freight transfer facilities.

mGIC's private activity bond guide and conduit issuer guide carry those definitions clause by clause.

Which funds hold housing bond proceeds, and what are their draw profiles?

The proceeds sit in the funds the bond documents create: a project or construction fund spent down over the development period, plus capitalized interest, debt service and reserve funds where the documents call for them.

Treasury Regulation §1.148-1(b) defines gross proceeds as any proceeds and replacement proceeds of an issue, the terms the arbitrage rules are written in.

Sale proceeds are the amounts actually or constructively received from selling the issue, including amounts used to pay the underwriters' discount or compensation and accrued interest other than pre-issuance accrued interest.

Investment proceeds are amounts received from investing proceeds, net sale proceeds subtract the portion invested in a reasonably required reserve or replacement fund and the minor portion, and transferred proceeds are defined in Treasury Regulation §1.148-9.

The fund types an issue can create, from the construction fund to the rebate fund, are covered in mGIC's funds guide.

For sizing the investments, GFOA's best practice on the investment and management of bond proceeds lists typical horizons by fund.

GFOA presents these as typical ranges, not rules, and points issuers to their advisory team and investment policy.

A multifamily project fund draws while the development advances, which puts it in the 12 to 36 month construction fund range, and the draws are typically the borrower's rather than the agency's.

Where debt service on the bonds is paid from repayments on the agency's loans, the bona fide debt service fund definition matters.

Treasury Regulation §1.148-1(b) treats a fund as a bona fide debt service fund when it is used mainly to match revenues with principal and interest within each bond year and is depleted at least once each bond year, except for a reasonable carryover amount not exceeding the greater of the prior year's earnings on the fund or one-twelfth of the prior year's principal and interest payments.

mGIC's debt service fund guide covers the definition and what follows from it.

Which reinvestment products fit housing bond proceeds?

mGIC evaluates and competitively bids guaranteed investment contracts, full-flex repurchase agreements and structured portfolios of U.S. Treasury securities for housing bond proceeds, with stated priorities of safety first, then liquidity, then yield.

Structured Treasury portfolios are matched to anticipated cash needs and can carry a money-market allocation for faster-than-expected spend-down.

A bond-proceeds guaranteed investment contract is also a different product from the stable value contracts used in retirement plans, which the CFTC and SEC describe as bank or insurer wrap guarantees that pay plan participants at book value if a stable value fund's market value falls short.

mGIC's guide to reinvestment products covers each structure, and money market funds, local government investment pools and forward delivery agreements have their own guides under the same hub.

How the structures map to a specific housing fund turns on the draw schedule, the expected term and any yield restriction that applies, which is why the comparisons sit on their own pages: a GIC against a full-flex repo, a GIC against a Treasury ladder, and flex repo against a Treasury portfolio for a construction fund.

For portions of a fund that will sit still between draws, SLGS securities are a further option, and Treasury limits who can buy them.

SLGS may be purchased only with an eligible source of funds, and 31 CFR 344.1 lists the categories: gross proceeds of tax-advantaged bonds or amounts reasonably expected to become gross proceeds; amounts released from gross-proceeds status by the universal cap in Treasury Regulation §1.148-6(b)(2); amounts held with gross proceeds in a refunding escrow, defeasance escrow, parity debt service reserve fund or commingled fund; proceeds of a non-tax-advantaged issue that refunds, or is refunded by, a tax-advantaged issue; and other amounts subject to yield limits.

Whether any particular housing fund is an eligible source of funds is a question for bond counsel, and mGIC's SLGS guide covers the mechanics.

The SLGS window also carries a debt limit contingency: 31 CFR 344.2(l) reserves Treasury's right to change or suspend the terms and conditions of the offering when the issuance of obligations sufficient to conduct the orderly financing operations of the United States cannot be made without exceeding the statutory debt limit.

During such a contingency, 31 CFR 344.7(b) provides that Treasury may move unredeemed Demand Deposits into special 90-day certificates of indebtedness, earning simple interest at the daily factor in effect when Demand Deposit issuance was suspended and rolling over if the contingency continues.

How do private use and private activity rules apply to housing issues?

The sector's compliance overlay is the private activity bond framework: the section 141 tests, the qualified bond categories in section 141(e), the volume cap in section 146, the requirements of section 147 and the arbitrage rules, which apply to private activity bonds as well, with differences.

Under section 141(b)(1), an issue meets the private business use test if more than 10 percent of the proceeds are to be used for any private business use, and section 141(b)(2) applies the same 10 percent threshold to the private security or payment test.

Section 141(b)(3) sets a 5 percent threshold for private business use that is unrelated or disproportionate to the governmental use, and private business use means use in a trade or business by a non-governmental person, not counting use as a member of the general public under section 141(b)(6)(A).

Housing issues reach the tests through lending as well as use: under section 141(c)(1), the private loan financing test is met if the proceeds used to make or finance loans to non-governmental persons exceed the lesser of 5 percent of proceeds or $5 million.

Under section 141(a), an issue is a private activity bond if it meets both the private business use test and the private security or payment test, or if it meets the private loan financing test, and such a bond can still be tax-exempt only as a qualified bond under section 141(e), subject to the applicable volume cap requirements of section 146 and the requirements of section 147.

Publication 4078 states that qualified private activity bonds generally must use 95 percent or more of net proceeds for the qualified purpose.

The arbitrage rules run on gross proceeds, and the spending exceptions use special modified definitions of gross proceeds, which tax counsel applies to the specific issue.

Whether a housing issue meets any of the section 141 tests, which qualified category it fits, and how the arbitrage differences apply are determinations for bond counsel and tax counsel.

Which mGIC representative transactions touch housing?

The student housing name in mGIC's representative record is OSU Village F student housing, on a named list that reaches across transportation, public power, aviation, higher education and water and also includes Pocahontas Parkway (VA), the Grand River Dam Authority (OK) and Birmingham Water Works.

Each transaction is catalogued by name in mGIC's case studies, which carry their own write-ups.

Since mGIC's founding in 2002, its record spans more than $60 billion in bond proceeds invested and swap notional executed across more than 1,000 transactions for issuers in more than 40 states.

Robert Rasmussen has been mGIC's Managing Director since 2002, with primary responsibility for its Bidding Agent and reinvestment advisory work, and earlier in his career he worked on single- and multi-family mortgage revenue bond programs in Baltimore and was part of the team behind the Single-Family Housing Mortgage Revenue Bond and the Variable Rate Demand Bond.

mGIC works on these transactions as an independent, SEC-registered municipal advisor that does not sell a proprietary investment product and does not act as principal, delivering reinvestment advisory, Bidding Agent services, and documentation and settlement that ends with a compliance file.

Its fee is paid by the winning provider rather than the issuer, at or below the safe-harbor maximum in the Treasury arbitrage regulations, and it is disclosed.

To talk to mGIC about a free, no-obligation reinvestment review of a housing issue's project fund, reserves and debt service accounts, use the contact page.

Final legal and tax conclusions on any housing issue belong to bond counsel and tax counsel.

Last updated 2026-10-06.

This page is general educational information about municipal finance and federal and state rules as of the date shown. It is not legal, tax or investment advice, and it is not a recommendation about any particular investment. Product availability, legality and suitability depend on the issuer, jurisdiction, governing documents and transaction-specific facts. Final legal and tax determinations remain with the issuer's bond counsel, tax counsel and other advisors.