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                            Instructions for Form 6390

                    2023 Alaska Federal-Based Credits
                                                                 
         GENERAL INSTRUCTIONS                                   Finally,  Form  6390  imposes  tax  liability  limits  based  on 
                                                                Alaska tax, limits the credits to 18%, and apportions  the 
Purpose of Form                                                 credits, if appropriate.
Form 6390 orders and limits federal-based credits, on an 
as-if Alaska basis. This form is required if  such  credits     Form 6390 must be attached to Form 6000, 6100, or 6150 
are to be claimed on Form 6000, 6100, or 6150. Under            to claim federal-based credits.
AS  43.20.021(d),  where  a  credit  allowed  under  the  
Internal Revenue Code and is also allowed in computing                        SPECIFIC INSTRUCTIONS
Alaska income tax, it is limited to 18% of the amount of 
credit determined  for  federal  income  tax  purposes,  and    Line  2a:  Alaska allows the   federal   investment  credit  
apportioned, if applicable.                                     only to the extent attributable  to  Alaska  property.  See  
                                                                AS  43.20.036(b).  On  line 2a  enter the  amount of  federal 
Adoption of the Internal Revenue Code                           investment credit (non-passive activities) that is not 
Under AS 43.20.021, Alaska adopts the Internal Revenue          attributable to Alaska property.
Code,  Sections  1–1399  and  6001–7872,  with  full    force 
and effect, unless excepted to or modified by provisions        Line  2b:  Alaska does not allow credits for backup 
of Alaska law. In addition, AS 43.20.160 and AS 43.20.300       withholding,  credit  for  employer  social  security  and 
require the Department to apply, as far as practicable, the     Medicare  taxes  paid  on  certain  employee  tips,  and  other 
administrative and judicial interpretations of the federal      federal credits that are tax reimbursements. See 15 AAC 
income tax law.                                                 20.145(f).  Also note that  Alaska does not adopt Internal 
                                                                Revenue  Code  Sections  1400–1400U,  which  may  affect 
Note  that  Alaska  law  does  not  adopt  Internal  Revenue    allowable federal-based credits.
Code Sections 1400–1400U, which grant tax benefits for 
activities in certain geographic zones, including those in      Line  4:    Use Form  6395 to  calculate general business 
“Enterprise  Zones”  and  “Gulf  Opportunity  Zones.”  If  the  credits  from  a  passive  activity.  Enter  amount  from  Form 
taxpayer qualifies for special federal treatment under these    6395, line 17.
code sections, this may require that the taxpayer recompute 
some federal-based credits for Alaska purposes.                 Line 9:  Alaska allows unused federal-based credits to be 
                                                                carried forward, based on applicable federal rules. An entry 
Other Related Forms                                             on  line  9  must  be  supported  by  a  schedule,  attached  to  
Form 6395 is used to account for passive activity limitations   the return, showing the individual unused credits, by year 
on an as-if Alaska basis.                                       generated and used, which are available.  The schedule 
                                                                must show credits on an as-if Alaska basis,  based  on 
If You Need Help                                                prior years’ Forms 6390 (or equivalent), not federal credit 
If you have questions, need additional information or require   carryover amounts.
other assistance, see our website at www.tax.alaska.gov, 
or call:                                                        Line 10:  Alaska allows carryback of unused federal-based 
                                                                credits, based on applicable federal rules. An entry on line 
                  Juneau: 907-465-2320                          10 must be supported by a schedule, attached to the return, 
         Anchorage:  907-269-6620                               showing the individual unused credits, by year generated 
                                                                and used, which are available for carryback.
In  general,  Form  6390 follows  the  function   of    federal 
Form  3800, accounting for  various groups of  credits that     Line 13a: Enter the Alaska alternative minimum tax (AMT) 
require special treatment under the Internal Revenue Code.      from Schedule E, line 1d, net of the Alaska credit for prior 
Such  groups  include  “specific  credits,”  carryforward  of   year minimum tax (AMT credit) from Schedule A, line 11 .
“eligible small business credits,” and passive/non-passive 
categories. See federal instructions for federal Form 3800      Lines 12b and 13b:      Alaska incentive credits (from Form 
for more details.                                               6300)  are  applied  first. Any Alaska  regular  or  alternative 
                                                                minimum tax (AMT), left after application of Alaska incentive 
From  each  of  these  baskets,  Form  6390  removes  any       credits,  may  be  offset  by  federal-based  credits.  Use  the 
credits that are not allowable for Alaska purposes. Alaska      following worksheet to determine the respective amounts of 
does not allow  credits for backup  withholding,  credit for    regular Alaska tax offset, and AMT offset by Alaska incentive 
employer  social  security  and  Medicare  taxes  paid  on      credits: 
certain employee tips, and other federal credits that are tax 
reimbursements. See 15 AAC 20.145(f).
                                                                                        0405-6390i  Rev 01/01/2024 - page 1



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                                              Regular Tax  Alaska AMT
                                                A          B
1  Enter regular tax from Schedule D, line 2 
   of Form 6000, 6100, or 6150
2  Enter Alaska AMT from (Form 6000 or 
   6100) Schedule E, line 1d, or (Form 6150) 
   Schedule E, line 1d, column A and B
3  Reserved
4  Total. Enter amount from line 1 on column 
   A and the amount from line 2 on column 
   B.
5  Share of tax. Divide each column of line 4 
   by the total of columns A and B of line 4. 
   Enter as a percentage

6  Enter amount from Form 6300, line 49
7  Regular tax offset by other incentive credits. Multiply 
   line 6 by line 5, column A. Enter on Form 6390, line 12b
8  Alaska AMT offset by Alaska incentive credits. Multiply 
   line 6 by line 5, column B. Enter on Form 6390, line 13b

Line 21:    Use  Form  6395  to  calculate  “specified  credits” 
from a passive activity. Enter amount from Form 6395, line 
18.

Lines 26a–26b:  See instructions for line 9 above.  Attach
schedule of applicable credits, by year generated and used.

Lines 27:  See  instructions  for  line 10 above.  Attach
schedule of applicable credits, by year generated and used.

                                                                     0405-6390i  Rev 01/01/2024 - page 2






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