The Litmus tax library
Prepare for your next tax filing
Practical guides to individual and business tax returns, international filing questions, ITIN applications and EIN administration.
60 articles found.
EIN
EIN Applications for Foreign Corporations with US Filing Obligations
Prepare an EIN application for a foreign corporation by identifying the legal applicant, US filing purpose, responsible party and existing account records.
Read article ↗EIN
EIN Requirements for Sole Proprietors and Freelancers
Learn when a sole proprietor or freelancer may need an EIN, how trading names differ from entities, and what changes when hiring or incorporating.
Read article ↗EIN
EIN Responsible Party Rules for Overseas Business Owners
Identify the right EIN responsible party for an overseas-owned business, distinguish nominees and designees, and plan accurate IRS record updates.
Read article ↗Individual Tax
Estimated Tax Payments for Employees with a Side Business
Plan estimated taxes for a side business while employed. Review withholding options, payment records, changing profits and questions to ask your preparer.
Read article ↗Individual Tax
Filing Taxes with Both W-2 and 1099 Income
Learn how W-2 wages and 1099 income fit into one tax return, with practical guidance on business records, overlapping statements and payment planning.
Read article ↗UK Tax
First Corporation Tax Return: Short and Long Accounting Periods
Prepare your first Corporation Tax return by separating incorporation, trading and accounts dates, with examples of short periods and two-return situations.
Read article ↗UK Tax
First Self Assessment Return for a UK Sole Trader
Filing your first sole trader tax return? Learn how to organise registration, income, expenses and payments without confusing turnover with taxable profit.
Read article ↗Business Tax
First-Year LLC Tax Filing Checklist
Prepare your first LLC tax return with a practical checklist covering tax classification, owner funding, records, filing responsibilities and review questions.
Read article ↗International Tax
Foreign Partners in a US Partnership: Withholding and Filing Records
Prepare foreign partner partnership withholding records, including K-1s, Form 8805, capital activity, section 1446 rules and filing coordination.
Read article ↗International Tax
Foreign-Owned LLC Records: Owner Contributions and Withdrawals
Track foreign-owned LLC contributions and withdrawals with clear records of owner funding, reimbursements, loans and related-party filing questions.
Read article ↗International Tax
Form 1040-NR Document Checklist for Nonresident Taxpayers
Prepare a Form 1040-NR document checklist covering residency, income, withholding, deductions and prior returns before your nonresident tax review.
Read article ↗Business Tax
Form 1099-NEC Filing Checklist for Business Owners
Build a Form 1099-NEC checklist covering the payment year, vendor records, reporting thresholds, payment methods, filing evidence and contractor corrections.
Read article ↗