Financial Glossary
Form 1128 (Application to Adopt, Change, or Retain a Tax Year)
Form 1128, Application to Adopt, Change, or Retain a Tax Year, is the IRS form a business or other entity files to request a tax year different from the default required period. It is used when an entity wants to switch from a calendar year to a fiscal year (or vice versa), often to align its tax reporting with its natural business cycle. Approval generally requires a valid business purpose, and certain changes follow automatic procedures while others need IRS consent.
Problem & Application
Seasonal operators such as campgrounds, RV parks, and STR businesses often peak in summer and wind down in winter, so a calendar-year close can split a single season across two tax years and muddy the financial picture. Form 1128 lets such a business adopt a fiscal year that ends after its busy season, producing cleaner annual results and simpler planning. Because eligibility and approval depend on entity type and the business purpose claimed, the decision should be coordinated with overall tax strategy before filing.
In Short
Form 1128 is the mechanism for aligning a company's tax year with how it actually operates rather than the default calendar. For seasonal businesses, the right fiscal year can make annual results far more meaningful.