ACA premium tax credits/APTC & CSRs

Parent: Health Insurance and Coverage · Published reference · snapshot 2026-09-24

Depth-first rabbithole dossier for ACA premium tax credits/APTC & CSRs; source-anchored research pack.

These notes link each claim to its source. A source may be a research report hosted on this site rather than the primary document. A published reference means the content is available; it does not certify independent review or accuracy.Read the editorial policy and follow the sources before relying on a claim.

Structure and components

55. §1402(c)(3) says: "The Secretary shall make periodic and timely payments to the issuer equal to the value of the reductions." [H7, M36] S2 56. In 2014 the House sued HHS (*House v. Burwell*), arguing that CSR payments had no appropriation. [H14] S49 57. On 2016-05-12, Judge Collyer (D.D.C.) ruled for the House. §1401 credits come from the permanent refund appropriation, but §1402 was never added to it. She enjoined the payments and stayed the injunction pending appeal. [H15] S48 58. HHS stopped CSR payments in October 2017, relying on an Attorney General opinion that no appropriation exist [source]
36. The statute directs HHS to pay insurers "periodic and timely payments" equal to the value of the CSRs. https://www.law.cornell.edu/uscode/text/42/18071 37. Federal CSR payments stopped on 2017-10-11 because Congress had not appropriated them. Insurers must still provide CSRs. https://bipartisanpolicy.org/issue-brief/explaining-cost-sharing-reductions/ 38. Insurers recovered the cost by raising silver premiums only ("silver loading"). Silver loading raises the SLCSP benchmark, which raises every subsidized enrollee's PTC. Bronze and gold plans get relatively cheaper after the credit. https: [source]
- **Merge pass.** The four reports hold 177 raw claims (48 + 46 + 45 + 38), which deduplicate to 97 atomic claims. About 45% of raw claims duplicate another report's claim. The merge added 0 new sourced facts, which is expected because no new research was run. It resolved or narrowed 3 conflicts (R1–R3) and surfaced 10 unresolved factual contradictions (X1–X10). - **Core mechanism** (§B–F: formula, schedules, cliff, reconciliation, CSR variants, silver loading): **converged.** Every claim here is corroborated by at least 2 of the 4 independent runs, and the most-recent-pass rate on this sub-pa [source]
- **Result: met.** The report draws on more than 3 independent hosts: govinfo.gov, irs.gov, law.cornell.edu, everycrsreport.com (CRS), kff.org, kslaw.com, shvs.org, astho.org, nbcnews.com, npr.org, paragoninstitute.org, and aha.org. - **Primary sources** read in full or in excerpt: TD 9590 (Federal Register), Rev. Proc. 2026-26, 42 U.S.C. §18071, the *King v. Burwell* opinion, the HCERA section-by-section, and CRS R44425/R48290. - **Disconfirming source:** I sought one on purpose, from Paragon, and set it against the AHA view. - **Not verified against full primary text:** - The HCERA 9.8%→9.5% [source]

How it works

In scope: how the premium tax credit (IRC §36B) is computed, advanced as APTC, and reconciled. Also how CSRs (ACA §1402, 42 U.S.C. §18071) change cost sharing, how CSRs are financed, and the current-law limits on both (as of 2026-09-24). Out of scope: Medicaid, employer mandate penalties, enrollment operations, broker regulation, and marketplace design generally. Those appear only where they change the credit mechanism. [source]

Measurements and reference values

1. The PTC is a refundable credit that can be paid in advance. ACA (P.L. 111-148) §1401 created it as IRC §36B. §1402 created CSRs, codified at 42 U.S.C. §18071. [H1, P1] S25, S23 2. HCERA (P.L. 111-152) §1001 made the credits larger and strengthened CSRs below 250% FPL. From 2019 it also limited credit growth when premiums grow faster than CPI. [H3] S8 3. HCERA §1001 changed the employer-affordability threshold in §36B(c)(2)(C) from 9.8% to 9.5%. This comes from a search excerpt and was not checked against the full text. [H4] S7 4. TD 9590 (77 FR 30377, 2012-05-23) finalized the §36B regulati [source]
1. The ACA (P.L. 111-148) created the PTC in §1401, which added IRC §36B. It created CSRs in §1402, codified at 42 U.S.C. §18071. — https://www.everycrsreport.com/reports/R44425.html 2. The ACA limited PTC eligibility to household incomes of 100–400% of the federal poverty level (FPL). The enrollee's required contribution, the "applicable percentage", was set in statute and indexed each year. — https://www.everycrsreport.com/reports/R48290.html 3. The Health Care and Education Reconciliation Act of 2010 (P.L. 111-152) §1001 made the credits larger ("makes premiums more affordable as a percent [source]
17. §71305 strikes the excess-APTC repayment cap in §36B(f)(2)(B) for taxable years after 2025. From 2026 on, an enrollee repays all excess APTC at any income. https://www.law.cornell.edu/uscode/text/26/36B 18. The 2025 cap was up to $3,250 for a filer just under 400% FPL. From 2026 there is no ceiling. https://www.healthinsurance.org/blog/one-big-beautiful-bill-act-brings-sweeping-changes-to-health-coverage/ 19. §71302 strikes §36B(c)(1)(B) from 2026. Lawfully present noncitizens below 100% FPL who are Medicaid-ineligible because of immigration status lose PTC, and so lose APTC and income-bas [source]
1. The ARPA/IRA enhanced applicable-percentage table applied only to taxable years beginning after 2020 and before 2026 (§36B(b)(3)(A)(iii)). https://www.law.cornell.edu/uscode/text/26/36B 2. Congress did not extend the enhanced credits; they ended on 2025-12-31. https://www.astho.org/communications/blog/2026/aca-enhanced-premium-tax-credits-legislative-developments-2025-2026/ 3. The Senate failed to reach 60 votes on S. 3385 (extension to 2028) in December 2025. https://www.astho.org/communications/blog/2026/aca-enhanced-premium-tax-credits-legislative-developments-2025-2026/ 4. The House pas [source]
1. The PTC is refundable and advanceable. An enrollee can take it as monthly APTC paid to the insurer, or claim it in full at tax filing. https://www.congress.gov/crs_external_products/R/PDF/R48290/R48290.7.pdf 2. When APTC is elected, the exchange sends household data to Treasury, and Treasury pays the APTC directly to the plan. This reduces the premium the household is billed. https://www.congress.gov/crs_external_products/R/PDF/R48290/R48290.7.pdf 3. PTC = benchmark premium minus required contribution. The benchmark is the second-lowest-cost silver plan (SLCSP). The required contribution is [source]
7. The enhanced PTC (ARPA 2021–22, extended by P.L. 117-169 through 2025) removed the 400% FPL cap and cut the applicable percentages to 0% at 100–150% FPL. The top rate was 8.5%. The enhancement sunset on January 1, 2026. https://www.congress.gov/crs_external_products/R/PDF/R48290/R48290.7.pdf 8. The 2026 applicable percentage table is: <133% FPL → 2.10%; 133–150% → 3.14–4.19%; 150–200% → 4.19–6.60%; 200–250% → 6.60–8.44%; 250–300% → 8.44–9.96%; 300–400% → 9.96%. https://www.irs.gov/pub/irs-drop/rp-25-25.pdf 9. The 2026 required contribution percentage for the employer-coverage affordability [source]
8. The monthly PTC is the lesser of (a) the premium for the plan the household enrolled in and (b) the benchmark premium minus the required contribution. [M1, P3] S1, S23 9. The benchmark is the second-lowest-cost silver plan (SLCSP) in the rating area on the same Exchange, priced for self-only or family coverage as needed. [M2, P3] S1 10. The benchmark is adjusted only for age, as PHS Act §2701 allows. Tobacco surcharges are left out. [M3] S1 11. The monthly required contribution equals 1/12 × applicable percentage × household income. [M4, P3] S1 12. The household pays a fixed share of income [source]
76. On 2025-08-22, *City of Columbus v. Kennedy* (D. Md.) stayed six of the eight challenged provisions of the 2025 rule. The stayed provisions are: - income data-matching issues (DMIs) for applicants below 100% FPL or with no tax data - denial of coverage for past-due premiums - wider AV de minimis ranges - the $5 charge on $0-premium auto-re-enrollees - SEP pre-verification - one-year FTR [source]
- **F1: Unlimited clawback at the cliff.** From 2026 there is no repayment cap (41), and the credit drops to $0 above 400% FPL (28). A raise or bonus that lifts income just above 400% FPL can require repaying the whole year's APTC, which was previously capped. The only real control is to report income changes to the Exchange during the year. [M25, E-F1, P16] S1, S15 - **F2: Dependency cascade.** CSR eligibility requires PTC eligibility (46). Every immigration or SEP restriction on the PTC therefore also removes CSRs. Below 150% FPL that moves the average deductible from $87 to $4,902 (51). [E- [source]
- **Unlimited clawback.** From 2026 there is no repayment cap (claims 17–18). Combined with the 400% cliff (claim 6), a mid-year raise or bonus that lifts income just above 400% FPL can require repaying the entire year's APTC. - **Dependency cascade.** Loss of PTC automatically removes CSRs (claim 20). Every immigration-status or SEP restriction on PTC therefore also raises deductibles, for example from $87 to $4,902 below 150% FPL (claim 31). - **Verification false negatives.** Required DMIs for "no IRS data" (claim 29, about 2.8M a year) hit people with no filing obligation, and many of them [source]
7. The base statutory table runs from 2.0% (up to 133% FPL) to 9.5% (300–400% FPL). Within each band, the percentage rises linearly. https://www.law.cornell.edu/uscode/text/26/36B 8. The base table is indexed each year by the IRS. For 2026, Rev. Proc. 2025-25 sets it at 2.10% (below 133% FPL), 3.14–4.19% (133–150%), 4.19–6.60% (150–200%), 6.60–8.44% (200–250%), 8.44–9.96% (250–300%), and 9.96% (300–400%). https://www.currentfederaltaxdevelopments.com/blog/2025/7/18/rev-proc-2025-25-a-technical-review-of-2026-premium-tax-credit-and-affordability-adjustments 9. For 2027, Rev. Proc. 2026-26 (issu [source]
[M8, E7, P8] S12, S53 19. The 2027 table (Rev. Proc. 2026-26, released 2026-07-21) runs from 2.15% to 10.22%. Its top band is "at least 300% but not more than 400%" FPL. [M9, H44, E8] S13, S54 20. The employer-affordability percentage by year: 9.12% (2023), 9.02% (2025), 9.96% (2026), 10.22% (2027). [H29, P9, M16, H45, E8] S51, S12, S52, S13 21. For 2027, Treasury found that the §36B(b)(3)(A)(ii)(III) failsafe applies, so it did not make the (ii)(II) adjustment. [E10] S13 22. The Marketplace Integrity and Affordability rule (90 FR 27074, 2025-06-25) added individual-market premiums to the prem [source]
[M10, H24, P7] S1, S26, S23 25. IRA §12001 (P.L. 117-169) extended the enhancement through tax year 2025. The statute text, §36B(b)(3)(A)(iii), covers taxable years after 2020 and before 2026. [H27, E1] S25, S1 26. The enhancement expired on 2025-12-31. From 2026 the 100–400% FPL band and the indexed base table apply again. [M11, H41, E2] S14, S59 27. Worked example: a household at 200% FPL paid 2% of income toward the benchmark in 2025 and pays 6.6% in 2026. [P11] S23 28. The subsidy cliff is back. At 400% FPL, a household pays at most 9.96% of income for the benchmark in 2026. At 400% FPL pl [source]
87. Subsidized enrollment rose from 9.2 million (2020) to 21.8 million (2025). The subsidized share rose from 86% to 93%. [P27] S23 88. CBO projected these effects of expiration: - gross benchmark premiums: +4.3% in 2026, +7.7% in 2027, and +7.9% a year on average for 2026–2034 - uninsured: +2.2 million in 2026, +3.7 million in 2027, and +3.8 million on average [source]
- **R1: Do CSRs reach 250–400% FPL? (M disagreement 1).** H5 reports the §18071 AV target at 250–400% FPL as 70%, equal to standard silver. That supports M's inference: the statute lists OOP cuts at 200–400% (49), but no effective CSR exists above 250% FPL. The implementation sources [E31, P20] agree. Still open: nobody checked the §18071(c) text on how the OOP reduction and the AV cap interact. - **R2: OBBBA section numbering (H disagreement).** CMS's FAQ at `wftca-section-71302-faq-final.pdf` (S18) covers only the below-100% FPL rule. That supports King & Spalding's split (§71301 = 2027 stat [source]
41. Effectuated marketplace enrollment fell from about 22.1 million (end of 2025) to 19.2 million (February 2026), about 13%. https://www.kff.org/quick-insights/aca-marketplace-enrollment-is-down-by-3-million-after-big-jump-in-premium-payments/ 42. KFF reports that net premium payments rose 58% for enrollees who kept the same plan; before switching, the average rise was 114%. https://www.kff.org/quick-insights/aca-marketplace-enrollment-is-down-by-3-million-after-big-jump-in-premium-payments/ 43. ASPE (2026-06-26) attributes the decline mainly to integrity actions: about 1.5M removed (Medicaid [source]
Verdict: **BUDGET_EXHAUSTED (soft stop)**, not saturated. The new-claim rate was still 11% on the last pass. Likely productive next passes: 1. The text of any ruling on the re-finalized 2027 NBPP policies. 2. IRS Form 8962 instructions for tax year 2026, now that repayment is uncapped. 3. State-level CSR-loading and premium-alignment rules under the new "State authority" language. [source]
1. The monthly PTC is the lesser of two amounts: (a) the premium for the plan the household enrolled in, or (b) the benchmark premium minus the household's required contribution. https://www.law.cornell.edu/uscode/text/26/36B 2. The benchmark is the "applicable second lowest cost silver plan" (SLCSP) in the rating area, on the same Exchange. It is priced for self-only or family coverage as the household requires. https://www.law.cornell.edu/uscode/text/26/36B 3. The benchmark premium is adjusted only for each covered person's age, as PHS Act §2701 allows. Tobacco surcharges are not included. h [source]
17. §71302: from plan year 2026, no PTC for people who are ineligible for Medicaid because of immigration status and have income below 100% FPL. https://www.cms.gov/files/document/wftca-section-71302-faq-final.pdf 18. §71301: from January 1, 2027, the PTC is limited to lawful permanent residents, Cuban/Haitian entrants, and COFA migrants. Other lawfully present noncitizens lose eligibility. https://ccf.georgetown.edu/2025/10/01/new-immigrant-eligibility-restrictions-coming-to-federally-funded-health-coverage/ , https://www.cbo.gov/system/files/2025-09/61734-Health.pdf 19. §71303: from 2028, en [source]

Problems, failure modes and limitations

31. OBBBA (P.L. 119-21, signed 2025-07-04) §71301 limits the PTC to lawful permanent residents, Cuban/Haitian entrants, and Compact of Free Association migrants, effective 2027. — https://www.kslaw.com/news-and-insights/the-one-big-beautiful-bill-act-explained-a-detailed-review-of-key-changes-for-the-healthcare-industry 32. OBBBA §71302 removes PTC eligibility for lawfully present immigrants below 100% FPL who cannot get Medicaid because of their immigration status. It applies to taxable years beginning after 2025-12-31. — https://www.kslaw.com/news-and-insights/the-one-big-beautiful-bill-act- [source]
38. The Marketplace issues Form 1095-A. Every tax family that received APTC must file Form 8962. [M21, P13] S14, S15 39. If the allowed credit exceeds APTC, the difference is refunded. If APTC exceeds the allowed credit, the excess becomes tax owed (§36B(f)(1)). [M22] S1 40. Before 2026, §36B(f)(2)(B) capped repayment for filers under 400% FPL. The reports give different amounts; see X1. [M23, E18] 41. P.L. 119-21 §71305 repeals the caps for tax years beginning after 2025-12-31. All excess APTC is repayable at any income. The first affected returns are filed in early 2027. [M24, H35, E17, P15] [source]
71. §71302 strikes §36B(c)(1)(B) from 2026. Lawfully present noncitizens below 100% FPL who cannot get Medicaid because of their status lose PTC, APTC, and income-based CSRs. They may still buy full-price plans. CMS calls the section self-effectuating. [M18, H32, E19, P17] S18, S41, S47 72. §71301 applies to tax years after 2026-12-31. It limits PTC and CSR eligibility to lawful permanent residents, certain Cuban/Haitian entrants, and COFA migrants. Refugees, asylees, TPS holders, and work- or student-visa holders lose eligibility in 2027. [M19, H31, E21, P18] S1, S41, S39, S42, S22 73. §71303 [source]
- **Why enrollment fell in 2026.** - HHS/ASPE says integrity enforcement removed 2.9M improper or phantom enrollees. https://aspe.hhs.gov/reports/aca-exchange-enrollment-2026 - KFF says the drop coincided with double- and triple-digit net premium increases after the enhanced credits expired. https://www.kff.org/quick-insights/aca-marketplace-enrollment-is-down-by-3-million-after-big-jump-in-premium-payments/ - Neither side has published a decomposition that the other accepts. - **Whether zero-claim enrollees are evidence of fraud.** - Paragon and the House chairs read the rise from 19–23% to 3 [source]
23. The American Rescue Plan Act (P.L. 117-2, signed 2021-03-11) §9661 changed the credit for tax years 2021–2022. It removed the 400% FPL upper limit, lowered the applicable percentages, and paused indexing. — https://www.everycrsreport.com/reports/R48290.html 24. Under ARPA, households at 100–150% FPL had a required premium contribution of zero for the benchmark plan. — https://www.everycrsreport.com/reports/R48290.html 25. ARPA §9662 cancelled repayment of excess 2020 APTC. Taxpayers did not have to file Form 8962 to reconcile that excess. — https://www.irs.gov/newsroom/more-details-about-c [source]
20. APTC is the estimated credit, based on projected income. It is paid each month directly to the insurer and lowers the enrollee's premium bill. https://www.irs.gov/affordable-care-act/individuals-and-families/questions-and-answers-on-the-premium-tax-credit 21. The Marketplace issues Form 1095-A. The taxpayer files Form 8962 to reconcile APTC against the credit allowed on actual annual income. https://www.irs.gov/affordable-care-act/individuals-and-families/questions-and-answers-on-the-premium-tax-credit 22. If the allowed credit exceeds APTC, the difference is a refundable credit. If APTC e [source]
- **In scope:** how the §36B credit is computed, paid in advance as APTC, and reconciled; how CSRs work and are financed (including silver loading); eligibility gates; how the credit changed from 2010 to 2027; edge cases; failure modes; and disputes about the credit itself. - **Out of scope:** Medicaid, the individual and employer mandates, broker regulation, §1332 waivers, the Basic Health Program, and state subsidy wraps. These appear below only where they change the PTC or CSR amount or eligibility. [source]
29. Household income must be from 100% to 400% FPL. The person must be a citizen, national, or lawfully present, and not incarcerated. [M13, P4] S1, S23 30. A married taxpayer must file jointly (§36B(c)(1)(C)). Victims of domestic abuse or spousal abandonment are excepted, but lose the exception after using it for three consecutive preceding years (26 CFR 1.36B-2(b)(2)). A person who can be claimed as a dependent cannot claim the credit. [M14, H10, E11, E12] S14, S4, S6 31. The credit is not allowed for any month in which the person is eligible for other minimum essential coverage. [M15] S1 32 [source]
13. Anyone whose tax family received APTC must file Form 8962, using Form 1095-A from the marketplace. https://www.irs.gov/affordable-care-act/individuals-and-families/premium-tax-credit-claiming-the-credit-and-reconciling-advance-credit-payments 14. If a household received APTC and does not file and reconcile, it may lose APTC eligibility in future years. It may also have to pay back APTC. https://www.irs.gov/affordable-care-act/individuals-and-families/premium-tax-credit-claiming-the-credit-and-reconciling-advance-credit-payments 15. P.L. 119-21 (H.R. 1, 2025) §71305 strikes the repayment-li [source]
46. To be a CSR "eligible insured," a person must enroll in an Exchange silver plan, have income of 100–400% FPL, and be allowed a PTC for that month (§18071(g)(2)). Any cut to PTC eligibility therefore also removes CSRs. [M29, E20] S2, S18 47. Insurers deliver CSRs through silver plan variations with higher actuarial value (AV): 94% at 100–150% FPL, 87% at 150–200%, and 73% at 200–250%. Standard silver is 70%. [M30, H5, P20] S2, S3, S5 48. The statute sets the AV target at 250–400% FPL at 70%, the same as standard silver. [H5] S2 49. The statute's out-of-pocket (OOP) reductions are 2/3 at 100 [source]
[E43] S21 95. CMS data cited by House committee chairs: 35% of 2024 enrollees (about 12 million) had no claims, against 23% in 2020. 40% of enrollees in $0-premium, 94%-AV silver plans had no claims. The source is a letter to GAO, not a GAO report. [E44] S27 96. According to Paragon, CMS found about 1.6 million people a month in 2024 enrolled in both Medicaid/CHIP and subsidized Exchange coverage. [M disagreement 2] S68 97. For 2027, 276 insurers propose a median premium increase of 15%. About 4 points of it is attributed to a sicker risk pool after the enhancement expired. [P35] S35 [source]
25. On 2025-08-22, *City of Columbus v. Kennedy* (D. Md.) stayed six provisions of the 2025 Marketplace Integrity and Affordability rule: <100% FPL / no-tax-data income DMIs, past-due-premium denials, wider AV de minimis ranges, the $5 charge on $0-premium auto-re-enrollees, SEP pre-verification, and one-year failure-to-reconcile (FTR). https://shvs.org/resources/ruling-in-challenge-to-marketplace-rule-initial-analysis-and-implications-for-states/ 26. The court did not stay the premium-adjustment-percentage change, the DACA-eligibility rollback, or the end of the 150% FPL SEP. https://shvs.org [source]
13. Household income must be at least 100% and at most 400% FPL for the family size. https://www.law.cornell.edu/uscode/text/26/36B 14. A married taxpayer must file jointly. The exception covers certified victims of domestic abuse or spousal abandonment, for up to three consecutive years. A person who can be claimed as someone else's dependent cannot claim the credit. https://www.irs.gov/affordable-care-act/individuals-and-families/questions-and-answers-on-the-premium-tax-credit 15. The credit is not allowed for any month in which the person is eligible for other minimum essential coverage. Ex [source]
29. A CSR "eligible insured" enrolls in a silver-level QHP through an Exchange, has income from 100% to 400% FPL, and is allowed a §36B credit for that month. CSR therefore depends on PTC eligibility. https://www.law.cornell.edu/uscode/text/42/18071 30. The insurer delivers CSRs through silver plan variations with higher actuarial value (AV): 94% at 100–150% FPL, 87% at 150–200%, and 73% at 200–250%. The standard silver plan is 70%. https://www.law.cornell.edu/cfr/text/45/156.420 · https://www.kff.org/affordable-care-act/impact-of-cost-sharing-reductions-on-deductibles-and-out-of-pocket-limits [source]
1. **Do CSRs reach 250–400% FPL?** The statute (§18071) lists OOP cuts for 200–300% and 300–400% FPL (claim 31). Implementation sources describe CSRs only for 100–250% FPL (claims 30, 32). Our reading: §18071(c) caps the AV increase, and the target for 250–400% FPL is 70%, the standard silver AV. That would leave no effective CSR above 250% FPL. This reading is our inference; this pass did not confirm it with a primary HHS source. 2. **Did the 0% applicable percentage cause improper enrollment?** Paragon Health Institute argues that the 0% table (claim 10) created $0-premium plans that brokers [source]
27. Subsidized exchange enrollment rose from 9.2 million (2020) to 21.8 million (2025), a 137% increase. Over the same period, the subsidized share of enrollees rose from 86% to 93%. https://www.congress.gov/crs_external_products/R/PDF/R48290/R48290.7.pdf 28. CBO projected the following effects of expiration: gross benchmark premiums +4.3% (2026), +7.7% (2027), and +7.9% on average (2026–2034); uninsured +2.2 million (2026), +3.7 million (2027), and +3.8 million on average. https://www.congress.gov/crs_external_products/R/PDF/R48290/R48290.7.pdf 29. CBO and JCT scored a permanent extension at [source]
36. In December 2025, the Senate did not reach 60 votes for a three-year extension. On January 8, 2026, the House passed H.R. 1834 (three-year extension) 230–196 after a discharge petition. https://www.astho.org/communications/blog/2026/aca-enhanced-premium-tax-credits-legislative-developments-2025-2026/ , https://www.cnbc.com/2026/01/08/obamacare-subsidies-extension-congress.html 37. As of the August 2026 update, the enhanced PTCs remain expired, and 2027 rates are filed on that basis. https://www.healthsystemtracker.org/brief/how-much-and-why-aca-marketplace-premiums-are-going-up-in-2027/ 38 [source]

Comparisons and alternatives

31. CSRs apply only to silver plans, for enrollees at 100–250% FPL. The average 2025 silver deductible was $4,902 without CSRs, $87 below 150% FPL, $682 at 150–200% FPL, and $3,620 at 200–250% FPL. https://www.kff.org/uninsured/explaining-cost-sharing-reductions-and-silver-loading-in-aca-marketplaces/ 32. American Indian and Alaska Native enrollees at 100–300% FPL pay zero cost-sharing on any metal level. At any income, they can use a limited cost-sharing plan with no cost-sharing at Indian health providers. https://www.healthinsurance.org/faqs/how-can-american-indians-and-alaska-natives-get-c [source]
- **Scale of improper APTC enrollment.** - Paragon Health Institute estimates 6.4 million improperly enrolled people and $27 billion in improper spending in 2025, including 3–4 million "phantom" enrollees. It ties these to $0-premium plans at 100–150% FPL and to broker conduct. https://paragoninstitute.org/private-health/the-persistent-obamacare-enrollment-fraud/ - Critics say the method compares marketplace sign-ups with self-reported Census income data. Census and the marketplace define income and household differently, Census undercounts low-income people, and the comparison used mismatched [source]
- **D1: Scale and cause of improper enrollment.** - Paragon: the 0% table produced $0-premium plans that brokers exploited. Paragon adds that income volatility cannot explain gaps of 5× in Florida and 2.4× in Texas. S68, S70, S71 - Critics (CBPP, Community Catalyst, CCLP, Keep Americans Covered, AHA): the method compares actual Census income with projected Marketplace income, uses mismatched income definitions and years (2024 enrollment vs 2022 Census), ignores the Census undercount of low-income people, and double-counts part-year enrollees (33.5M vs 21.4M). S72, S73, S74 - Both sides agree b [source]
- **Improper enrollment under the enhanced credit.** Paragon Health Institute (Brian Blase, 2026-06-30) cites a June 2026 ASPE report. Paragon says about 5.6 million enrollees were improperly enrolled as of February 2025. It also says the whole 2.9 million drop in enrollment from 2025 to 2026 came from removing improper and "phantom" enrollees, and that the $0 premiums under the enhanced credit caused the problem. — https://paragoninstitute.org/paragon-prognosis/new-hhs-report-finds-decline-in-aca-enrollment-results-from-removal-of-improper-and-phantom-enrollees/ - **Counter-view.** The Americ [source]
20. CSRs apply only to silver plans. Insurers must offer silver variants at 73%, 87%, and 94% actuarial value (AV); a standard silver plan is 70% AV. The 94% variant covers ≤150% FPL, the 87% variant 151–200%, and the 73% variant 201–250%. https://www.ecfr.gov/current/title-45/subtitle-A/subchapter-B/part-156/subpart-E , https://www.congress.gov/crs-product/R44425 21. On average, CSRs reduce deductibles from $4,902 to $87 below 150% FPL, to $682 at 150–200% FPL, and to $3,620 at 200–250% FPL. https://www.kff.org/uninsured/explaining-cost-sharing-reductions-and-silver-loading-in-aca-marketplace [source]
| # | Point | Side A | Side B | Notes | |---|---|---|---|---| | X1 | Pre-2026 repayment cap amounts | "$375 under 200% FPL to $1,575 near 400% FPL" [M23] S41 | "up to $3,250 for a filer just under 400% FPL" (2025) [E18] S39 | Possible explanations: the figures may be for different filing statuses (single vs other) and different indexing years. This is inference; no report gives the full table. | | X2 | Date CSR payments stopped | 2017-10-11 [M37] S45 | Hargan memo, 2017-10-12, "effective immediately" [H16] S17 (excerpt only) | E and P say only "October 2017". | | X3 | Size of the 2026 enrollme [source]

Facts and statements

In scope: the IRC §36B premium tax credit (PTC), its advance payment (APTC), ACA §1402 cost-sharing reductions (CSRs), their eligibility edges, reconciliation, the 2025–2027 statutory and regulatory changes to them, CSR funding and silver loading, and the evidence fights about them. Out of scope: Medicaid, employer mandate penalties (§4980H), HSAs, broker regulation, and marketplace design generally, except where one directly changes PTC/CSR eligibility or amount. [source]
**In scope:** How the premium tax credit (PTC, IRC §36B), its advance payment (APTC), and cost-sharing reductions (CSRs, ACA §1402) evolved. That covers the enacting statutes, amendments, implementing rules, court cases, and the 2025–2026 expiration of the enhanced credit. [source]
12. In *King v. Burwell*, 576 U.S. 473 (decided 2015-06-25, 6–3, Roberts writing), the Court held that "Section 36B's tax credits are available to individuals in States that have a Federal Exchange." — https://www.law.cornell.edu/supremecourt/text/14-114 13. The challengers in *King* argued that the words "Exchange established by the State" excluded federally run exchanges. The majority rejected that reading, and Scalia, Thomas, and Alito dissented. — https://supreme.justia.com/cases/federal/us/576/473/ 14. In 2014 the House sued HHS (*House v. Burwell*). It argued that CSR payments to issuers [source]
- **In scope:** How the premium tax credit (PTC), its advance payment (APTC), and cost-sharing reductions (CSRs) work in operation. This covers the formula, eligibility, reconciliation, the CSR silver variants, silver loading, 2026–2027 parameter changes, measured effects, and contested evaluations. - **Out of scope:** Medicaid, employer coverage rules beyond the PTC affordability test, marketplace design in general, broker regulation, and other health-coverage siblings. Those are separate frontier items. - **Currency:** Facts are current to sources dated up to August–September 2026. Law in th [source]
**Legal, tax, and trade analysis** - S47 https://www.kslaw.com/news-and-insights/the-one-big-beautiful-bill-act-explained-a-detailed-review-of-key-changes-for-the-healthcare-industry - S48 https://www.crowell.com/en/insights/client-alerts/court-rules-in-favor-of-house-republicans-in-aca-subsidies-suit - S49 https://familiesusa.org/blog/2017/01/house-v-burwell-case-threatens-health-care-millions - S50 https://www.thetaxadviser.com/issues/2021/jul/arpa-suspension-2020-excess-aptc-repayment/ - S51 https://www.businessgrouphealth.org/resources/irs-finalizes-rule-to-fix-aca-family-glitch - S52 http [source]
- https://www.law.cornell.edu/uscode/text/26/36B - https://www.law.cornell.edu/uscode/text/42/18071 - https://www.law.cornell.edu/cfr/text/45/156.420 - https://www.irs.gov/affordable-care-act/individuals-and-families/questions-and-answers-on-the-premium-tax-credit - https://www.currentfederaltaxdevelopments.com/blog/2025/7/18/rev-proc-2025-25-a-technical-review-of-2026-premium-tax-credit-and-affordability-adjustments - https://tax.thomsonreuters.com/news/irs-announces-indexing-adjustments-for-2027-aca-affordability-and-premium-tax-credit-determinations/ - https://ccf.georgetown.edu/2025/07/22/ [source]

Related concepts

premium — is a part of ACA premium tax credits/APTC & CSRs
APTC — is a part of ACA premium tax credits/APTC & CSRs
CSRs — is a part of ACA premium tax credits/APTC & CSRs
tax — is a part of ACA premium tax credits/APTC & CSRs
credits — is a part of ACA premium tax credits/APTC & CSRs
ACA — is a part of ACA premium tax credits/APTC & CSRs

Children

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