LIHTC certification is the process a household goes through to prove it qualifies to live in a unit financed through the Low-Income Housing Tax Credit program under Section 42 of the Internal Revenue Code. You show that your gross household income falls under a percentage of the local Area Median Income, you document every person who will live in the unit, and you sign a sworn Tenant Income Certification form that the property manager independently verifies. In most buildings you repeat a version of this process every year you stay.
Who Qualifies: The Income Limit
Every LIHTC property picks one of three federal set-aside tests when it opens, and that choice sets the income ceiling for your unit. Under the 20-50 test, at least 20 percent of the units are reserved for households earning no more than 50 percent of area median gross income. Under the 40-60 test, at least 40 percent of units are reserved for households at or below 60 percent. Under the average income test, added in 2018, units are assigned individual limits in 10-percent increments from 20 percent up to 80 percent, and the average across designated units cannot exceed 60 percent.1Federal Register. Section 42 Low-Income Housing Credit Average Income Test Regulations
The 40-60 test is the most common, so most applicants are measured against the 60 percent ceiling. Limits are adjusted for household size and published each year by HUD through the Multifamily Tax Subsidy Project (MTSP) tables, which differ slightly from the standard Section 8 income limits.2HUD USER. Income Limits
The limit applies to gross annual income before taxes and deductions. A four-person household applying for a 60-percent unit in a metro area with a median income of $90,000 would need to earn roughly $54,000 or less, though the precise number comes from HUD’s calculation for your specific area.
The Full-Time Student Rule
A household made up entirely of full-time students generally cannot occupy a LIHTC unit. There are exceptions, and at least one must apply for an all-student household to qualify:3Office of the Law Revision Counsel. 26 USC 42 Low-Income Housing Credit
- A student receiving assistance under Title IV of the Social Security Act (TANF).
- A student who was previously under the care and placement responsibility of the state child welfare agency.
- A student enrolled in a federal, state, or local job training program.
- A single parent living with their children, where neither is claimed as a dependent by someone outside the household.
- A married couple filing a joint tax return.
If even one member of the household is not a full-time student, the rule does not apply and the household is evaluated on income alone. Managers verify student status for every occupant during certification, so plan to provide enrollment documentation or a signed statement covering everyone in the unit.
What Counts as Income (and What Doesn’t)
LIHTC properties follow HUD’s income calculation rules, and several categories are excluded from the gross annual income used to test you against the limit:4U.S. Department of Housing and Urban Development. HUD Occupancy Handbook Income Inclusions and Exclusions
- Foster care payments for foster children or adults.
- Student financial aid, whether paid to the student or to the school.
- Employment income of household members under 18.
- Reimbursements specifically covering medical costs.
- Temporary or sporadic income, such as one-time gifts or irregular side work.
- Lump-sum receipts like inheritances, insurance payouts, and settlements for personal or property losses, which are treated as additions to assets rather than income.
- Earnings of a live-in aide caring for a disabled household member.
- Special military pay for exposure to hostile fire.
These exclusions can be decisive if you are near the ceiling. Bring documentation of any income you believe should be excluded so the manager can verify it rather than count it.
Documents You Need Before You Apply
The certification package covers income, assets, and identity for every person who will live in the unit. Gathering everything up front prevents weeks of back-and-forth.
For employment income, expect to provide four to six consecutive recent pay stubs, your most recent federal tax return, and W-2 forms. For non-employment income, bring benefit award letters from Social Security or other agencies, court-ordered child support or alimony documentation, and pension or annuity statements. Every recurring source of money needs a paper trail.
Asset documentation covers checking accounts, savings, investment accounts, retirement funds, life insurance policies with cash value, and any real estate you own. Many agencies want the last six months of checking statements to calculate an average balance. For savings and investment accounts, the most recent statement usually suffices. Retirement accounts like 401(k)s and IRAs only count if you can currently access the funds without penalty; if the money is locked until retirement age, you still need documentation showing it exists, but you may be able to show it has no current cash value.
You will also need government-issued identification and Social Security information for every household member, plus names and contact details for all employers and financial institutions, because the manager may contact them directly during verification.
The Tenant Income Certification Form
The Tenant Income Certification (TIC) is the central document in the process. It captures every household member’s income from all sources and the current value of all assets on a single standardized form, separating earned wages from unearned income like Social Security, interest, and public assistance. The totals determine whether the household falls within the unit’s applicable income limit.
Management provides the TIC during the application, and many state housing finance agencies post blank copies online for preview. It is filled out from the supporting documents you gathered, so accuracy depends on how thorough your paperwork is. Every adult in the household signs it under oath. The owner relies on the TIC when claiming tax credits, and both the state agency and the IRS can review it later, so misrepresentation has real consequences.
How Your Income Gets Verified
After you turn in the TIC and supporting documents, compliance staff review everything and may start independent verification. Methods vary by state agency. Some states require the manager to send official verification forms directly to your employer, bank, or benefits agency, which then returns the completed form. Others accept pay stubs, bank statements, and award letters as primary documentation, reserving third-party forms for cases where those documents are missing or incomplete.
The full process from application to determination usually takes two to four weeks. Delays are common when employers or financial institutions are slow to respond. If verification reveals a discrepancy between what you reported and what a third party confirms, the manager will ask for clarification, and a significant gap can lead to denial. When everything checks out, you receive a written determination of eligibility and can sign a lease at the restricted rent.
Annual Recertification
Whether you have to recertify each year depends on your building. In properties where every unit is designated low-income (often called 100-percent LIHTC buildings), the IRS has authority to waive annual income recertification.3Office of the Law Revision Counsel. 26 USC 42 Low-Income Housing Credit After the Housing and Economic Recovery Act of 2008 codified the waiver, most state agencies adopted it, though many still require a simplified annual form or a first-year recertification to validate the initial move-in data.
In mixed-income buildings where some units are market-rate, full annual recertification remains standard. The process mirrors the initial one: updated pay stubs, tax returns, asset documentation, and a fresh TIC. Recertification usually has to be completed on or before the anniversary of your move-in date. Missing that deadline can be treated as a lease violation, so do not ignore the paperwork even when nothing has changed.
If your LIHTC unit also carries another subsidy, such as project-based Section 8, that program’s recertification rules still apply regardless of the LIHTC waiver.
If Your Income Goes Up After Move-In
A raise or a new job does not automatically cost you your unit. As long as you qualified at move-in and the unit stays rent-restricted, you keep your LIHTC status even if your income later climbs above the original limit. The trigger to watch is 140 percent of the applicable income limitation for your unit, not 140 percent of the full area median income. That difference is where a lot of tenants (and some property managers) get confused.3Office of the Law Revision Counsel. 26 USC 42 Low-Income Housing Credit
The math: if your unit sits in a 60-percent-AMI building and the area median is $90,000, your initial income limit was $54,000. The over-income trigger is 140 percent of that $54,000, or $75,600, which works out to 84 percent of area median income. Not 140 percent of it.
Stay below that line and nothing changes. Your unit still counts as a qualifying low-income unit, and your rent stays restricted. Cross it, and the Available Unit Rule takes effect: the property must rent the next comparable or smaller unit that becomes vacant to a new income-qualified household.5eCFR. 26 CFR 1.42-15 Available Unit Rule You are not evicted. The property just has to backfill by placing another qualifying tenant elsewhere in the building. In deep rent skewed projects the threshold is 170 percent rather than 140 percent.
Adding or Removing Household Members
Any change in who lives in the unit triggers a compliance step, because occupancy affects both income eligibility and student status. When a new adult moves in, the property runs that person through the full certification: application, income and asset verification, and student status documentation. A new TIC then reflects the combined income of everyone in the unit.
Many state agencies discourage adding adults during the first year of the initial lease, to reduce the risk of income-limit manipulation. If every original qualifying member eventually moves out and only added members remain, those remaining members may have to recertify as a brand-new household unless they were independently income-qualified when they joined.
When someone leaves, the property recalculates income without them. If the departure leaves a household made up entirely of full-time students and no exception applies, the unit can lose its low-income status.
What Happens If You Miss or Misstate Something
For tenants, the biggest practical risk is failing to complete required certifications or recertifications on time. If you do not return paperwork by the deadline, the property may treat the unit as out of compliance, which puts the owner’s credits at risk. Most LIHTC leases include a clause requiring cooperation with the certification process, so refusal or neglect can be grounds for non-renewal or, in some cases, eviction.
Deliberately misrepresenting income or household composition on the TIC is fraud. You sign the form under oath, so false statements can lead to lease termination and legal action beyond just losing the apartment. If your situation is complicated, ask the manager how a particular income source or household member should be reported rather than guessing.