South Dakota Nonprofit Tax Deadlines 2026

Complete guide to Nonprofit filing dates, extensions, estimated payment schedules, and required forms in South Dakota for the 2026 tax year. South Dakota does not have a state income tax, so Nonprofit entities only need to file federal returns.

South Dakota Nonprofit filing deadline

No state individual income tax. Other business taxes may apply.

N/A

Due: N/A

Form: N/A

Estimated payments

No state estimated payment schedule listed.

N/A

Due: N/A

South Dakota Nonprofit Tax Calendar at a Glance

EventDate

FAQ

When is the Nonprofit tax filing deadline in South Dakota for 2026?

South Dakota does not have a separate state filing requirement for Nonprofit entities. Check with South Dakota Department of Revenue for the latest information.

Does South Dakota require Nonprofit estimated tax payments?

Estimated payments are not typically required at the entity level for Nonprofit in South Dakota, but confirm with South Dakota Department of Revenue.

What form do I file for a Nonprofit in South Dakota?

Nonprofit entities in South Dakota file using Form N/A. You can download the form from South Dakota Department of Revenue at https://dor.sd.gov.

Can I get an extension for my South Dakota Nonprofit tax return?

Check with South Dakota Department of Revenue for extension options for Nonprofit entities in South Dakota.

What are the penalties for filing late in South Dakota?

South Dakota typically charges a failure-to-file penalty (usually 5% of unpaid tax per month, up to 25%) and a failure-to-pay penalty (usually 0.5-1% per month). Interest also accrues on unpaid balances. Filing for an extension by the original deadline avoids the failure-to-file penalty but not the failure-to-pay penalty.

Where can I file South Dakota Nonprofit taxes?

File through South Dakota Department of Revenue. Visit https://dor.sd.gov for e-filing options, downloadable forms, and payment portals.

Other Entity Types in South Dakota

Nonprofit Deadlines in Neighboring States