Form 8962 Lines 12–23 Calculator: Part-Year and Changing Coverage
Covered only part of 2026, or your premium or benchmark changed? Enter Form 1095-A month by month and see the monthly contribution and credit for each line.
Form 8962 line 27, carried to Schedule 2 (Form 1040) line 1a: it adds to your 2026 tax.
Credit allowed (line 24)
$1,992
Advance payments (line 25)
$2,880
Income vs poverty line (line 5)
230%
Applicable figure (line 7)
0.0770
Not tax advice. Check your own case with a qualified tax professional or IRS Publication 974.
Your Form 8962, line by line
The same steps as the 2026 form, with your numbers. Amounts in cents; you may round to whole dollars on the form.
Part I: annual and monthly contribution amount
1
Tax family size
1
2a–3
Household income (modified AGI, plus dependents who must file)
$36,000
4
Federal poverty line (48 states and DC, 1 person)
$15,650
5
Household income as a % of the poverty line
230%
6
Did you enter 401% on line 5?
No
7
Applicable figure
0.0770
8a
Annual contribution amount (line 3 × line 7)
$2,772
8b
Monthly contribution amount (line 8a ÷ 12)
$231
Part II: premium tax credit claim
Line
(a) Premium
(b) SLCSP
(c) Contribution
(d) Max. assistance
(e) PTC allowed
(f) Advance
12
January
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
13
February
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
14
March
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
15
April
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
16
May
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
17
June
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
18
July
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
19
August
$420.00
$480.00
$231.00
$249.00
$249.00
$360.00
20
September
No coverage
21
October
No coverage
22
November
No coverage
23
December
No coverage
Lines 24–29: reconciliation
24
Total premium tax credit
$1,992.00
25
Advance payment of PTC (APTC)
$2,880.00
27
Excess advance payment: repay (Schedule 2, line 1a)
$888.00
28–29
Repayment limit
None for 2026
Repayment limits: 2025 and 2026
Until tax year 2025, Form 8962 lines 28–29 capped what most people repaid. From 2026 the cap is gone (Pub. L. 119-21, section 71305): every dollar of excess advance payments is repaid.
A single filer in Texas had a Marketplace plan from January to August 2026 and moved to an employer’s plan in September. Form 1095-A shows $420 a month in column A (premium), $480 in column B (benchmark) and $360 in column C (advance payments) for lines 21 to 28, and nothing after. Her income for the whole year was $36,000, 230% of the $15,650 poverty line, so the applicable figure is 0.0770. That makes line 8a $2,772 and line 8b $231 a month.
For each covered month the credit is $480 − $231 = $249, less than the $420 premium, so line 24 is 8 × $249 = $1,992. The Marketplace paid 8 × $360 = $2,880, so she repays $888 on line 27. September to December don’t count at all: no credit, no contribution.
How to fill the table
Type the first covered month’s three amounts, pick that month in Copy the amounts of and the last month with the same amounts in through, and press Copy. Then change any month that differs, such as a month after a move or a plan change. Leave months without coverage blank. If you had two Forms 1095-A for the same months, add their premiums and advance payments together; for the benchmark, take it from only one form when the policies are in the same state, and add the forms’ column B amounts when they are in different states.
Reading the result
The Part II table under the calculator shows lines 12 to 23 exactly as the form lays them out, columns (a) to (f), with the months you weren’t covered marked. Line 24 adds up column (e), line 25 column (f). Since 2026 there is no limit on repayment, so the whole difference on line 27 is due with the return; the “Why you owe” note shows the income at which the advance payments would have been right.