504 plan vs IEP for dyslexia: what's actually different and which does your child need

Last updated 2026-07-11

What is the core difference between a 504 plan and an IEP?

The short version: a 504 plan changes the environment, and an IEP changes the instruction.

A 504 plan comes from Section 504 of the Rehabilitation Act of 1973 ^[1]. It says a school cannot discriminate against a student with a disability and must provide reasonable accommodations so that student has equal access to education. Think extra time on tests, audiobooks, preferential seating, or a copy of the teacher's notes. None of those things change what the child is expected to learn or how the teacher teaches reading. They level the playing field.

An IEP, which stands for Individualized Education Program, comes from the Individuals with Disabilities Education Act (IDEA), a completely different federal law ^[2]. IDEA requires schools to provide a "free appropriate public education" designed to meet a child's unique needs. For a child with dyslexia, that means the school has to deliver structured literacy instruction, usually from a trained specialist, rather than just hand the child extra time to slog through a program that isn't working.

That distinction matters enormously in practice. A 504 says "we'll give you more time to read the same material." An IEP says "we're going to teach you to read differently." If your child can't decode well enough to benefit from grade-level material even with accommodations, more time on the wrong instruction won't close the gap.

Which law covers each plan, and why does that matter for your rights?

Section 504 sits under the Rehabilitation Act of 1973 and gets enforced by the U.S. Department of Education's Office for Civil Rights ^[1]. Every school that takes federal money has to comply. The standard is broad: if a physical or mental impairment substantially limits a major life activity (reading is explicitly a major life activity), the student qualifies. There's no requirement that the disability affect educational performance in a specific way, and no requirement that the school provide specially designed instruction.

IDEA is the other law ^[2]. Congress funds it separately and reauthorizes it periodically. The most recent big reauthorization was in 2004. IDEA covers 13 specific disability categories, and "specific learning disability" is one of them. Dyslexia sits squarely under specific learning disability. Congress amended the law in 2004 to make clear that "dyslexia" is an acceptable term for schools to use, ending years of schools dodging the word ^[2].

Here's the practical difference in your rights. Under IDEA, the school must convene a multidisciplinary team, run a full evaluation at no cost to you, write a detailed IEP with measurable annual goals, send progress reports, and give you the right to dispute decisions through mediation or a due process hearing ^[2]. Under 504, protections exist but the procedural safeguards are thinner. Schools aren't required to fund a 504 coordinator the way they must fund special education staff. If a school violates a 504 plan, your main remedy is an Office for Civil Rights complaint. If a school violates an IEP, you can file a complaint AND request a due process hearing with stronger legal remedies.

For a close look at how a 504 plan works day-to-day at school, including what to put in one, that guide covers the specifics.

Does a child with dyslexia automatically qualify for an IEP?

No, and this surprises a lot of parents.

To qualify for an IEP under IDEA, two things must both be true ^[2]. First, the child must have a disability in one of the 13 categories. Dyslexia qualifies under specific learning disability. Second, the disability must "adversely affect educational performance" to the point that the child needs specially designed instruction. A child with very mild dyslexia who is performing at grade level with minor support might not clear that second hurdle, at least in the school's view.

This is where schools and parents clash. Schools sometimes argue that because a student is passing, no IEP is needed. But "passing" isn't the legal standard. The U.S. Department of Education has made clear that a student can be eligible for special education even while advancing from grade to grade ^[3]. What matters is whether the child is getting appropriate benefit from general education, not whether they're technically keeping up.

For 504 eligibility, the bar is lower. Dyslexia almost always qualifies as a mental impairment that substantially limits the major life activity of reading. If your child doesn't meet IEP eligibility criteria (or the school says they don't), a 504 plan isn't a consolation prize. It can provide real support. But if your child needs intensive phonics instruction, a 504 won't get them that instruction.

If you haven't had a formal evaluation yet, understanding what a dyslexia test involves will help you know what to ask for.

What accommodations does a 504 plan typically include for dyslexia?

A 504 plan for a student with dyslexia usually works to reduce the load that weak decoding puts on everything else the child is trying to do. Common accommodations include:

• Extended time on tests and assignments (typically 50% to 100% extra time)
• Text-to-speech software or audiobooks for grade-level content
• Oral responses allowed instead of written ones
• Reduced or modified spelling lists (focused on pattern, not volume)
• Preferential seating near the teacher
• Copies of notes so the student can focus on listening
• Tests read aloud
• A quiet testing environment
• Spell-check allowed on writing assignments

None of these teach the child to read. That's not what a 504 is for. These accommodations let a smart child with dyslexia show what they know about science, history, or math without the reading barrier getting in the way. For that purpose, they're genuinely useful.

Here's what a 504 plan cannot require the school to do: hire a specialist, deliver structured literacy intervention, set measurable reading goals, or report your child's reading progress against those goals. Those things require an IEP.

What does an IEP provide for a child with dyslexia that a 504 can't?

This is the heart of the question for most parents.

An IEP must include measurable annual goals written specifically for your child ^[2]. For a child with dyslexia, a well-written goal might read: "By the end of the IEP year, [child] will read CVC and CVCE words with 90% accuracy across three consecutive probes using an Orton-Gillingham or structured literacy approach." The school then has to report your child's progress toward that goal at least as often as it reports grades to all parents.

An IEP also requires specially designed instruction, which means a trained person working with your child using a method that has evidence behind it. For dyslexia, that means a structured, systematic, explicit phonics program, the kind sometimes called Orton-Gillingham-based. The National Reading Panel and decades of reading science back this approach ^[4]. A 504 can't mandate any of it.

An IEP also includes related services. If your child needs speech-language therapy, reading support from a literacy specialist, or assistive technology training, those services can go into the IEP and the school must provide them at no cost to you.

An IEP gives you procedural protections a 504 plan simply doesn't match. You must consent before the school changes placement. You have the right to an independent educational evaluation at public expense if you disagree with the school's evaluation ^[2]. You can request mediation or a due process hearing. These rights exist because Congress recognized in IDEA that disagreements between schools and parents happen, and parents need real recourse.

If you're trying to figure out where to start, the ReadFlare parent advocacy kit includes an IEP request letter template and a plain-language guide to your evaluation rights, which can save a lot of back-and-forth with the school.

How do the two plans compare side by side?

The table below lays out the key differences. Knowing these before you walk into a school meeting changes the conversation.

Feature	504 Plan	IEP
Governing law	Rehabilitation Act of 1973, Section 504	IDEA 2004
Enforced by	Dept. of Education, Office for Civil Rights	Dept. of Education, Office of Special Education Programs
Eligibility standard	Physical/mental impairment substantially limits a major life activity	Disability adversely affects educational performance; child needs specially designed instruction
Written document required	Yes, though format varies	Yes, highly detailed federal format required
Measurable annual goals	Not required	Required
Specially designed instruction	Not required	Required
Related services (speech, OT, etc.)	Not required	Can be required
Progress reporting	Not specifically required	Required at least as often as report cards
Parent consent for changes	Varies by state	Federally required
Due process hearing right	Limited	Full federal right
Cost to family	Free	Free

One thing the table makes clear: both are free. Schools sometimes imply that IEP services cost the family something, or that they're a bigger ask. They're not your ask to apologize for. IDEA funds flow from Congress to states to districts precisely to pay for these services.

Can a child have both a 504 plan and an IEP at the same time?

Generally, no. A child with an IEP already has more protection than a 504 offers, so there's no reason to run both. The IEP can hold every accommodation a 504 would provide, plus the specialized instruction and services a 504 can't.

Some schools write both documents for a child in the middle of an eligibility change, or fold 504-style accommodations into the IEP's "supplementary aids and services" section. That's fine. But if a school suggests giving your child a 504 instead of pursuing an IEP evaluation, that's a different situation. It might be an honest judgment that the child doesn't need specialized instruction, or it might be a way to sidestep the more resource-intensive IEP process. Ask directly: "Is the school saying my child doesn't qualify for special education, or is the school saying a 504 is all that's needed?" Those are two different answers with different implications.

For a broader look at IEP vs 504 decision-making beyond dyslexia, that comparison covers other disability types too.

How do you request an evaluation for either plan?

Put it in writing. Always.

For an IEP evaluation, send a letter to the school principal and the director of special education. Say: "I am requesting a full evaluation of my child, [name], under the Individuals with Disabilities Education Act (IDEA) to determine eligibility for special education services. I suspect my child has a specific learning disability, including dyslexia." Once the school gets your written request, federal law gives them 60 days to complete the evaluation (some states set shorter timelines, so check your state's rules) ^[2]. The school must respond in writing and cannot ignore a written request.

For a 504 evaluation, the process is less standardized. Write to the principal or 504 coordinator and request an evaluation under Section 504 of the Rehabilitation Act. Schools have more flexibility in how they run this evaluation, but they must respond and they must document the decision.

If the school denies your IEP evaluation request, they have to give you written notice explaining why. That notice is your starting point for disputing the decision. You can request mediation, file a state complaint, or request a due process hearing ^[2].

Parents often ask a teacher to "refer" the child for evaluation instead of requesting it themselves. A teacher referral works, but your written parent request starts the federal clock. A teacher's informal mention to a reading coach does not.

The 504 plan school guide explains how the 504 referral and meeting process usually runs, which varies more by district than IEP procedures do.

What does the research say about what actually helps kids with dyslexia?

The science here is unusually clear.

The National Reading Panel's 2000 report found that systematic, explicit phonics instruction produces significantly better outcomes for children with reading difficulties than non-systematic instruction or no phonics instruction ^[4]. That finding has been replicated many times. A meta-analysis published in the Journal of Learning Disabilities found that structured literacy interventions (explicit, systematic phonics, phonemic awareness, fluency, vocabulary, and comprehension) produced meaningful gains for students with dyslexia, with an average effect size of about 0.49 across reading outcomes ^[5].

The International Dyslexia Association names structured literacy as the approach with the strongest evidence base for students with dyslexia ^[6]. Structured literacy programs include Orton-Gillingham, the Wilson Reading System, RAVE-O, and others. They're intensive, they need trained teachers, and they have to happen multiple times a week over a long stretch. That's exactly what an IEP can mandate and a 504 cannot.

Roughly 5 to 15 percent of the population has dyslexia, depending on which criteria and assessment tools you use ^[6]. That range is wide because dyslexia exists on a continuum. The kids at the more severe end are the ones most likely to need an IEP with intensive structured literacy, rather than accommodations alone.

When schools say they don't have "dyslexia-specific programs," the legal answer under IDEA is that they still have to provide appropriately intensive, evidence-based reading instruction. The label on the program matters less than whether it meets the structured literacy criteria the research supports.

For context on how phonics fits into reading development, the guide on sight words explains why some words that look like they need memorizing can actually be decoded once phonics knowledge is solid enough.

What should you do if your child already has a 504 but isn't making reading progress?

Request an IEP evaluation in writing, now.

A 504 plan that's been in place for a year or two with no measurable reading improvement is evidence that accommodations alone aren't enough. Bring data. Ask the school: "Can you show me my child's oral reading fluency scores or phonics screener results over the past 12 months?" Schools using evidence-based progress monitoring tools should have this data. If they don't have it, that itself tells you something.

Frame your request around the second IDEA prong: your child has dyslexia, the disability is adversely affecting educational performance, and the child needs specially designed instruction. Bring any outside evaluations you have. Bring teacher reports, report cards showing the gap between effort and outcome, and any written note where a teacher flagged reading difficulties.

If the school refuses your IEP evaluation request or finds your child ineligible and you disagree, your options are: (1) request an independent educational evaluation at public expense ^[2]; (2) file a state complaint with your state's department of education; or (3) request a due process hearing. Many parents find that a firm, well-documented written request, sometimes with a letter from an outside evaluator attached, is enough to move the school without a formal dispute.

You don't need a lawyer to make an IEP request. You do need to be persistent and put everything in writing.

The ReadFlare free reading tools include a phonics progress tracker you can use at home to document exactly where your child's decoding is breaking down, which makes a far more specific case than "my child struggles with reading."

What are the most common mistakes parents make when choosing between these plans?

Accepting a 504 when an IEP evaluation was warranted. This is the most common and most costly mistake. Schools sometimes offer a 504 because it's faster to put in place and less resource-intensive. Parents, relieved to have any plan at all, accept it. A year passes. The reading gap widens. Then the conversation starts over, except now the child has lost a year of intensive instruction.

Not asking what instruction the plan actually provides. A 504 with audiobooks doesn't teach reading. Ask every school: "Does this plan include explicit, systematic phonics instruction? Who delivers it, how often, and what program do they use?"

Treating the IEP meeting like a negotiation where the school's first offer is final. It isn't. IEP teams include the parent as a full member ^[8]. You can disagree with proposed goals, push for more service minutes, and ask for a different intervention program. You can also bring someone with you, including an advocate or attorney.

Not requesting an independent evaluation when you disagree with the school's assessment. Parents have the right to an independent educational evaluation at public expense if they disagree with the school's evaluation ^[2]. Schools sometimes push back on this right. It's real and it's federal.

Waiting for the school to refer the child. Federal law lets parents make referrals directly. Early identification matters enormously. Reading research consistently shows interventions work better before third grade, because after that the neural pathways for reading get harder to reshape ^[10]. Don't wait for a teacher to bring it up.

What about high school students with dyslexia: does the calculus change?

Yes, but the options don't disappear.

IDEA covers students through age 21 (or until they earn a standard diploma, in most states) ^[2]. A high school student with an IEP for dyslexia still has the right to specialized instruction and services. The focus often shifts toward compensatory strategies and preparation for life after graduation, but reading instruction shouldn't stop just because the child hit ninth grade.

For the SAT and ACT, extended time accommodations require documentation of a disability and a history of receiving accommodations. A 504 plan with extended time in school strengthens that application a lot. An IEP with extended time works too. Start the accommodation documentation process early; College Board and ACT each run their own approval processes that can take months ^[7].

For college students, neither IDEA nor Section 504 applies the same way it does in K-12. The Americans with Disabilities Act and Section 504 still apply to colleges receiving federal funding, but the burden of proof and disclosure shifts entirely to the student. Students who reach college with a 504 or IEP from high school will need to register with the disability services office and provide documentation. Accommodations are still available. The process just changes.

Teaching a high school student compensatory strategies (text-to-speech, speech-to-text, efficient note-taking) while also continuing to build decoding and fluency isn't an either-or choice. The how to improve reading comprehension guide covers strategies that work even when decoding is still developing.

Frequently asked questions

Can a school refuse to evaluate my child for an IEP if they already have a 504 plan?

No. Having a 504 plan does not disqualify a child from being evaluated for special education under IDEA. If you submit a written request for an IEP evaluation, the school must respond in writing and either conduct the evaluation within the required timeline (60 days federally, shorter in some states) or give written notice of why it is declining, which you can then dispute.

Is dyslexia considered a learning disability under IDEA?

Yes. The 2004 reauthorization of IDEA explicitly states that the term 'specific learning disability' includes conditions such as dyslexia, dyscalculia, and dysgraphia. Schools cannot legally refuse to use the word dyslexia in an IEP. If your child's evaluation confirms a pattern consistent with dyslexia, the IEP team can and should name it.

What is the difference between accommodations and modifications, and which plan offers each?

Accommodations change how a student accesses material without changing what they're expected to learn (extended time, audiobooks). Modifications change the actual standard (different grade-level content, reduced assignment length). A 504 plan provides accommodations. An IEP can include both accommodations and modifications, as well as specially designed instruction. Modifications can affect a student's diploma track, so discuss the implications before agreeing to them.

How long does it take to get a 504 plan versus an IEP?

A 504 plan can sometimes be put in place within a few weeks because the procedural requirements are less formal. An IEP requires a full evaluation, and federal law allows schools up to 60 days from receiving your written request to complete the evaluation process, though some states set shorter windows. After eligibility is confirmed, the IEP meeting to write the actual plan must happen within 30 days.

Does my child need a formal dyslexia diagnosis to get a 504 or an IEP?

Not necessarily. Schools must conduct their own evaluation under IDEA and cannot require you to get a private diagnosis first. However, a private evaluation from a psychologist or educational diagnostician often provides more detailed information and can strengthen your case significantly. For a 504, a school evaluation or even teacher documentation of a disability that limits a major life activity may be sufficient, depending on the district.

Can a 504 plan require the school to provide a reading intervention program?

No. Section 504 requires accommodations that provide equal access, not specialized instruction. A 504 cannot legally require a school to hire a reading specialist or deliver structured literacy intervention. If your child needs intensive reading instruction, an IEP under IDEA is the correct legal vehicle. Schools that offer a 504 with a reading group attached are doing something nice, but that reading group is not legally protected the way an IEP service is.

What happens to my child's IEP when they change schools or move to a new district?

Under IDEA, if a student transfers within the same state, the new district must provide services comparable to those in the existing IEP while conducting any needed new evaluation. If the transfer is from another state, the new district must also provide comparable services while determining eligibility under its own procedures. Always hand-carry a copy of the current IEP to the new school on day one; don't wait for records to transfer.

My child's school says they don't do IEPs for dyslexia, only 504s. Is that legal?

No, that is not a permissible policy. Every public school district receiving federal funding must evaluate any child suspected of having a disability under IDEA, including dyslexia. If a school categorically refuses to write IEPs for students with dyslexia, that is a violation of federal law. File a complaint with your state's department of education and, if needed, with the U.S. Department of Education's Office of Special Education Programs.

How often is an IEP reviewed versus a 504 plan?

Under IDEA, an IEP must be reviewed at least once per year, and a full reevaluation of eligibility must occur at least every three years (called a triennial review). A 504 plan has no federally mandated review schedule, though most districts review them annually. Parents can request a review of either plan at any time if the child's needs have changed or the plan isn't working.

Does having an IEP affect my child's chances of getting into college?

No. Colleges do not see a student's K-12 IEP. IDEA records are separate from the academic transcript. What matters for college is grades, test scores, and any accommodations the student wants to carry forward, which requires separate documentation submitted to the college's disability services office. A history of documented accommodations actually helps students access college accommodations more easily.

Can I ask for specific reading programs like Orton-Gillingham in an IEP?

You can and should advocate for evidence-based structured literacy instruction, and you can name specific approaches. Schools are not legally required to use a specific branded program, but they are required to provide instruction that the IEP team agrees is appropriate and evidence-based. If the school proposes a program you believe lacks evidence for dyslexia, ask them to show you the research. Documenting your request in writing creates a record.

What is the difference between a 504 plan and an IEP for a child with both dyslexia and ADHD?

A child with dyslexia and ADHD can potentially qualify for an IEP under specific learning disability and/or other health impairment (ADHD's IDEA category). If both conditions adversely affect educational performance, both should be addressed in the IEP. Some families end up with an IEP for dyslexia and assume the ADHD accommodations are covered too; confirm explicitly that the IEP addresses both. A 504 alone is rarely sufficient when both conditions are present at significant levels.

What's the best first step if I think my child has dyslexia and has no plan at all yet?

Send a written request to the principal and special education director asking for a full evaluation under IDEA to assess for specific learning disability, including dyslexia. Use email so you have a timestamp. Attach any teacher notes, report cards, or screening results you have. The school must respond in writing. If you want to move faster, ask if the district has a dyslexia screener it can administer immediately while the formal evaluation is scheduled.

Sources

1. U.S. Department of Education, Office for Civil Rights (main page): Section 504 of the Rehabilitation Act of 1973 prohibits discrimination against students with disabilities and requires reasonable accommodations from schools receiving federal funding
2. U.S. Department of Education: Individuals with Disabilities Education Act (IDEA): IDEA requires a free appropriate public education for children with disabilities, mandates IEPs with annual goals, parent consent rights, and due process protections; the 2004 reauthorization explicitly names dyslexia as a specific learning disability
3. U.S. Department of Education: Individuals with Disabilities Education Act, eligibility guidance: A child may be eligible for special education even if advancing from grade to grade; passing grades alone do not determine ineligibility
4. National Institute of Child Health and Human Development: National Reading Panel Report (2000): Systematic, explicit phonics instruction produces significantly better reading outcomes for children with reading difficulties than non-systematic instruction; early intervention is more effective
5. Journal of Learning Disabilities (SAGE), meta-analysis of structured literacy interventions for students with dyslexia: A meta-analysis found structured literacy interventions produced an average effect size of approximately 0.49 across reading outcomes for students with dyslexia
6. International Dyslexia Association: Definition of Dyslexia and Structured Literacy: Dyslexia affects 5 to 15 percent of the population; structured literacy is the evidence-based approach with the strongest research support for students with dyslexia
7. College Board: Services for Students with Disabilities: Students applying for SAT accommodations must document a disability and a history of receiving accommodations; the application process can take several months
8. U.S. Department of Education: Individuals with Disabilities Education Act, IEP guidance: Parents are full members of the IEP team; schools must obtain written parental consent before initial evaluation and before initial placement in special education
9. U.S. Department of Education, Office for Civil Rights (main page): OCR has clarified that schools may use the term dyslexia and that students with dyslexia may qualify for both Section 504 and IDEA protections
10. Yale Center for Dyslexia and Creativity: Prevalence and neuroscience of dyslexia: Reading intervention research consistently shows greater efficacy before third grade, when neural plasticity for reading pathways is higher