The short version
- 2027 HSA limits: $4,500 self-only, $9,000 family. HSA limits follow the calendar year, whatever your plan year is.
- A plan year that started July 1, 2026 keeps the $3,400 health FSA limit and the 9.96% ACA affordability percentage through June 30, 2027.
- IPERS regular-member rates are unchanged: 6.29% employee, 9.44% district.
- Still not released as of October 13, 2026: the 2027 health FSA limit, 403(b) and 457(b) limits, and Social Security wage base.
Most limit charts assume a January 1 plan year. A district that renews July 1 lives under two sets of IRS numbers in every plan year, so the first question is which limits switch in January and which hold until renewal.
Which number a July 1, 2026 plan year uses
| Limit | Follows | What applies |
|---|---|---|
| HSA contribution limit | Calendar year | 2026 limit through December, 2027 limit from January 1 |
| HDHP minimum deductible | Plan year | 2026 minimum until the July 1, 2027 renewal |
| Health FSA limit | Plan year | $3,400 for the whole plan year |
| Dependent care FSA | Employee's tax year | $7,500 per calendar year |
| ACA affordability | Plan year | 9.96% for the whole plan year |
| 403(b) and 457(b) deferrals | Calendar year | 2026 limit through December, 2027 limit from January 1 |
| IPERS rates | State fiscal year | Same July 1 through June 30 window as the plan year |
HSA and high-deductible plan limits
| Item | 2026 | 2027 |
|---|---|---|
| HSA contribution, self-only coverage | $4,400 | $4,500 |
| HSA contribution, family coverage | $8,750 | $9,000 |
| Catch-up, age 55 or older | $1,000 | $1,000 |
| HDHP minimum deductible, self-only / family | $1,700 / $3,400 | $1,750 / $3,500 |
| HDHP out-of-pocket maximum, self-only / family | $8,500 / $17,000 | $8,700 / $17,400 |
Sources: Revenue Procedures 2026-24 and 2025-19.1,2 The limit counts the district's contribution too.3 If the district puts in $1,000, a family-coverage employee can add $8,000 for 2027.
The deductible minimum is different. A fiscal-year plan can pick up the new minimum at renewal instead of January 1.4 A $1,700 self-only deductible that renewed July 1, 2026 stays HSA-qualified until the July 1, 2027 renewal, when it has to reach $1,750 (family $3,500).
Health FSA and dependent care FSA
The health FSA limit is $3,400 for plan years beginning in 2026, with a $680 maximum carryover.5 A July 1 plan year uses those figures through June 30, 2027. The 2027 limit had not been published as of October 13. Last year's came out October 9.
The dependent care FSA limit rose from $5,000 to $7,500 per household for 2026 ($3,750 married filing separately).6 Check that the plan document was amended. A plan still written at $5,000 holds employees to $5,000.
ACA affordability and penalty amounts
| Item | 2026 | 2027 |
|---|---|---|
| Affordability percentage, for plan years beginning in that year | 9.96% | 10.22% |
| Penalty for not offering coverage, per full-time employee | $3,340 | $3,780 |
| Penalty for unaffordable coverage, per affected employee | $5,010 | $5,670 |
A July 1 district tests affordability against 9.96% until June 30, 2027.7,8 The penalty amounts switch on January 1 regardless of plan year, and are assessed month by month.9,10,11
The easiest safe harbor uses the federal poverty line for one person.11 For Iowa in 2026 that is $15,960.12 9.96% of $15,960, divided by 12, is $132.46 a month, rounded down so the district stays under the line (our arithmetic; the IRS doesn't publish it). If no full-time employee pays more than that for single coverage on the lowest-cost plan, the district passes for everyone without looking at wages.
403(b) and 457(b) deferrals
| Item | 2026 | 2027 |
|---|---|---|
| Employee deferral limit, 403(b) | $24,500 | Not yet released |
| Employee deferral limit, 457(b) | $24,500 | Not yet released |
| Catch-up, age 50 or older | $8,000 | Not yet released |
| Catch-up, ages 60 through 63 | $11,250 | Not yet released |
2026 figures are from IRS Notice 2025-67.13 The 403(b) and 457(b) limits are separate, so an employee under 50 can defer $24,500 to each.14 Staff close to retirement ask about this.
New for 2026: catch-ups from anyone whose 2025 Social Security wages from the district topped $150,000 must go in as Roth.13 Plans may follow a reasonable, good-faith reading of the rule until the final regulations take effect.15 Ask your administrator what payroll needs to send.
IPERS and Social Security
IPERS regular-member rates for the year that began July 1, 2026: 6.29% employee, 9.44% district, 15.73% total.16 The 2026 Social Security wage base is $184,500.17 The 2027 base is normally announced in mid-October.
Still pending for 2027
- Health FSA limit and carryover. First matters to a July 1 district at the July 1, 2027 renewal.
- 403(b) and 457(b) limits. Expected by mid-November. They take effect January 1, mid-plan-year.
- Social Security wage base. Expected mid-October.
- 2027 poverty guidelines. Published by HHS in January. They set the safe-harbor amount for a July 1, 2027 plan year.
We update this page as each figure comes out.