The TaxSlayer Pro desktop program supports the following Montana Business forms.
| MT Form CLT-4 | Montana Corporate Income Tax Return |
| MT Form CLT-4 Sch. K | Apportionment Factors for Multi-State Taxpayers |
| MT Form CLT-4 Sch. C | Tax Credits |
| MT Form CLT-4 Sch. M | Affiliated Entities |
| MT Form CLT-4 Sch. NOL | Net Operating Loss Deduction |
| MT Form CLT-4-UT | Underpayment of 2021 Estimated Tax By Corporation |
| MT Form CT | Montana Corporate Income Tax Payment Voucher |
| MT Form PTE | Montana Pass-Through Entity Tax Return |
| MT Form PTE Sch. I | Form PTE - Apportionment Factor for Multistate Pass-Through Entities |
| MT Form PTE Sch. II | Form PTE - Montana PTE Tax Credits |
| MT Form PTE Sch. IV | Form PTE - Montana PTE Composite Income Tax Schedule |
| MT Form PTE Sch. VI | Form PTE - Reporting of Special Transactions |
| MT Form PTE Sch. VII | Form PTE - List of Disregarded Entities |
| MT Form PTE App. Inc. Wksht. | Form PTE - Apportionable Income Worksheet |
| MT Form PTE Sch. DE | Form PTE - Disregarded Entity Montana Source Income |
| MT Form PTE Adj. Wksht. | Form PTE - Montana Adjustment Worksheet |
| MT Form PTE Inc. Sch. | Form PTE - Montana Source Income |
| MT Form PR | Montana Partnership Tax Payment Voucher |
| MT Schedule K-1 (PTE) | Montana Schedule K-1 Owner’s Share of Income, (Loss), Deductions, Credits, etc. |
| MT Form FID-3 | Montana Income Tax Return for Estates and Trusts |
| MT Form FID-3 Sch. I | Adjustments to Everywhere Income and Montana Source Income |
| MT Form FID-3 Sch. III | Credit for Income Taxes Paid to Another State or Country |
| MT Form FID-3 Sch. IV | ESBT S Portion Income Tax Calculation |
| MT Form FID-3 Sch. V | Reporting of Special Transactions and Amended Return Information |
| MT Form FID-3 NOL | Net Operating Loss (NOL) for Individuals, Estates, and Trusts |
| MT Form EST-I | Interest on Underpayment of Estimated Tax by Individuals, Estates and Trusts |
| MT Form FID | Montana Estate or Trust Tax Payment Voucher |
| MT Form FID-3 Sch. K-1 | Beneficiary’s Share of Income (Loss), Deductions, Credits, etc. |
| MT Form QEC | Qualified Endowment Credit |
Additional Information: